Re: [Emc-users] Leadshine ACS806 - Large f-error at higher speeds - what is acceptable?
On Thu, 1 May 2014 18:56:23 -0400, you wrote: Thanks to everybody for the information. If anything it helped me understand the nature of servos better as I've been sitting here tweaking the machine. So it has something to do with some sort of lag in the servo driver. I'll be emailing leadshine with my fingers crossed hoping they can help. Here are the Specs Position following error : +/-1 count Velocity accuracy: +/-2rpm Maximum acceleration speed (No Load) : 80 rpm/ms2 Input frequency up to 600 kHz Maximum speed : 4000 rpm Allowable low speed reaches1 rpm Positioning accuracy :+/-1 count Suitable for 18 - 80 VDC AC servo Are you within them? Have you used the available tuning software using the serial connection to the drive? If not you need to to see what's going on and tune it properly. You will need to adjust the Kp, Kd and Vp parameters. All explained in the software manual. Steve Blackmore -- -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Plasma torch for cnc machine
Hi i am building cnc plasma table. it is CNC gantry type machine with plasma head. I want to ask about Jasic Air Plasma machine. how you start stop plasma - ? because i need to it be controlled with CNC controller Did anyone used Jasic Air Plasma machine with CNC - EMC2 controller? thank you aram On Tue, Apr 15, 2014 at 7:31 AM, Dave Cole linuxcncro...@gmail.com wrote: On 4/15/2014 6:20 AM, David Armstrong wrote: On 15/04/14 10:59, Viesturs Lācis wrote: Hello! I was thinking about a plasma source like this: http://www.ebay.com/itm/251355364995 It is supplied with a torch that is meant for manual operation - the problem is that it is angled, not straight, which makes it not only more difficult to mount, but also takes up more space and also does not look that nice. I found a torch, whose description says that it is suitable for the previously mentioned plasma source: http://www.ebay.com/itm/151167833644 The second picture of that listing seems somewhat suspicious - I do not see, where the power cable lead should be connected. There is one small connector visible, but that certainly is not capable of 100A current. I would appreciate any advices or links, how other plasma users have solved this issue. Thanks in advance! Viesturs -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Yes i'd agree it does look not capable of 100A , however they do work quite well , Although i'd realy rate them at about 60A Max , i have 2 running at 45A and they work fine i have been tempted just to tear the case off and make my own to suit the z Axis and make it more integral to the machine but not got around to it as yet . i'd class these as a Hobbist level , rather than a proffesional torch capable of many hours Dave Viesturs, Looks like you need to take apart your old manual torch head and attach this head. I see two setscrews in the back of the automatic torch head which are likely cable clamps for the power cable lead. I have a Cut 60 plasma setup which works ok. Cuts 1 manually without a problem. Looks like the Cut100 requires 3 phase power. Dave -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Plasma torch for cnc machine
2014-05-02 11:54 GMT+03:00 a k pccncmach...@gmail.com: I want to ask about Jasic Air Plasma machine. how you start stop plasma - ? because i need to it be controlled with CNC controller That is very simple - replace the manual button with something that is controlled by cnc controller - either a relay switch or anything else (optocoupler etc), depending on what kind of signal is going through those wires. In the welding robot there was a manual MIG welder, which had 8 V AC in the control button wires, so it took 2 output drivers on Mesa 7i37 to handle the AC part, while 8 V was much less of a problem. Viesturs -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Plasma torch for cnc machine
Have a look at this https://www.youtube.com/watch?v=4knPtYjc2s8. I don't know if it's just good advertising, but I'd like one.. You also need to be aware of the 'start' methodology. HF noise etc. But from what I've read, you won't go wrong with Hypertherm. Roland On 15 April 2014 11:59, Viesturs Lācis viesturs.la...@gmail.com wrote: Hello! I was thinking about a plasma source like this: http://www.ebay.com/itm/251355364995 It is supplied with a torch that is meant for manual operation - the problem is that it is angled, not straight, which makes it not only more difficult to mount, but also takes up more space and also does not look that nice. I found a torch, whose description says that it is suitable for the previously mentioned plasma source: http://www.ebay.com/itm/151167833644 The second picture of that listing seems somewhat suspicious - I do not see, where the power cable lead should be connected. There is one small connector visible, but that certainly is not capable of 100A current. I would appreciate any advices or links, how other plasma users have solved this issue. Thanks in advance! Viesturs -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] center finder camera
I know there has been some discussion about using cameras for center/edge finding with LinuxCNC. I just found a camera/microscope that looks REALLY ideal, but have no idea if there is a Linux driver for the camera chip. See eBay item http://www.ebay.com/itm/321060396782?ssPageName=STRK:MEWAX:IT_trksid=p3984.m1423.l2649 eBay item # is 321060396782 if the above line is messed up. it is 7 mm diameter, says 200X magnification. What I'd do is take a 3/4 R-8 end mill holder and fab a ring to permanently hold the scope, and have a groove for the cord to come out. Then, I'd find whatever pixel on the camera is at the center of rotation and make a permanent assignment of that pixel for the crosshairs. But, the eBay listing only specifies XP drivers. So, does anybody know how to find out whether there is a Linux driver for this camera? Any other comments on suitability of this unit? Thanks, Jon -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] center finder camera
On 5/2/2014 10:15 AM, Jon Elson wrote: But, the eBay listing only specifies XP drivers. So, does anybody know how to find out whether there is a Linux driver for this camera? Any other comments on suitability of this unit? There's likely no way to figure out what the chip is without actually buying one, but I would say since it's 640x480 and works natively with XP (drivers are only needed for Win 7 8), the odds are very good that it will work with Linux. For $17.59, just buy one and try it out! ...or wait until the one I just ordered comes in and I report back to the list. :) -- Charles Steinkuehler char...@steinkuehler.net signature.asc Description: OpenPGP digital signature -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] center finder camera
On Fri 02/05/14 17:15 , Jon Elson el...@pico-systems.com wrote: I know there has been some discussion about using cameras for center/edge finding with LinuxCNC. I just found a camera/microscope that looks REALLY ideal, but have no idea if there is a Linux driver for the camera chip. Jon - Les Newel done some work with edge finding software lately, I've a Supereyes camera - camera is great and according to their website here's how you get one to connect to Linux If anybody wants to use Supereyes microscopes on Linux, it is enough to install guvcview (free sfotware) and connect it to the right device. for example: guvcview (this is the default and it read input from /dev/video0) otherwise guvcview -d your-video-device in my case guvcview -d /dev/video1. thank you. -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] center finder camera
On 2 May 2014 16:15, Jon Elson el...@pico-systems.com wrote: eBay item # is 321060396782 if the above line is messed up. I have a similar one, I just tried it with Precise and Cheese and it Just worked -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] center finder camera
That looks very similar to the one I have and I'm not unhappy I bought it, but the optics didn't work for what I wanted to use it for. Which was pretty much an edge finding operation. It just worked with linux, although I went to some trouble prior to that to set up a more expensive usb microscope, so there was probably some software already installled If I could figure out which of these cameras have better optics, I would be happy to spend more On Fri, May 2, 2014 at 11:15 AM, Jon Elson el...@pico-systems.com wrote: I know there has been some discussion about using cameras for center/edge finding with LinuxCNC. I just found a camera/microscope that looks REALLY ideal, but have no idea if there is a Linux driver for the camera chip. See eBay item http://www.ebay.com/itm/321060396782?ssPageName=STRK:MEWAX:IT_trksid=p3984.m1423.l2649 eBay item # is 321060396782 if the above line is messed up. it is 7 mm diameter, says 200X magnification. What I'd do is take a 3/4 R-8 end mill holder and fab a ring to permanently hold the scope, and have a groove for the cord to come out. Then, I'd find whatever pixel on the camera is at the center of rotation and make a permanent assignment of that pixel for the crosshairs. But, the eBay listing only specifies XP drivers. So, does anybody know how to find out whether there is a Linux driver for this camera? Any other comments on suitability of this unit? Thanks, Jon -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] center finder camera
On Friday 02 May 2014 12:14:04 Jon Elson did opine: I know there has been some discussion about using cameras for center/edge finding with LinuxCNC. I just found a camera/microscope that looks REALLY ideal, but have no idea if there is a Linux driver for the camera chip. See eBay item http://www.ebay.com/itm/321060396782?ssPageName=STRK:MEWAX:IT_trksid=p3 984.m1423.l2649 eBay item # is 321060396782 if the above line is messed up. it is 7 mm diameter, says 200X magnification. What I'd do is take a 3/4 R-8 end mill holder and fab a ring to permanently hold the scope, and have a groove for the cord to come out. Then, I'd find whatever pixel on the camera is at the center of rotation and make a permanent assignment of that pixel for the crosshairs. But, the eBay listing only specifies XP drivers. So, does anybody know how to find out whether there is a Linux driver for this camera? Any other comments on suitability of this unit? Thanks, Jon I have one similar to that Jon, paid 22$ for it on fleabay, and am using the camunits drivers. Other than the lag of the image getting thru all the filters, about 4 seconds to update the screen when you move it, and the fact that it has self illuminating leds wrapped around the lens, making it somewhat less useful when the target is shiny (most metals are) because of the almost dead on illumination, it works well. I usually turn the dimmer in the cord down to nearly off use a strong low angle illumination from the side which doesn't give near as much specular illumination. But I don't have it spindle mounted, it is in a block of alu that I drilled for setscrews used to align the cameras center pixel with the non- adjustable crosshairs inserted by on of the filters, mounted on the right side of the spindle casting by 1 screw some Goop. So its about 1.5 from the spindle centerline. There are added buttons the align software puts up in the right hand panel, which can be use both to calibrate the offset, and to move the mill itself back and forth by the amount of offset determined. Once calibrated, that also works well. It also includes a means like for circuit boards, where you can drill a couple #80 witness holes, flip the board over and align the backside of the board even if its rotated an arbitrary amount by auto- compensating the co-ordinate system for the back of the board. Time to go put on a nose bag according to the better half. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] center finder camera
Hi everyone, not that I knew about a good camera for this, but since it somehow fits the topic, let me just briefly say a few words to an alignment software I made some time ago. Under http://hb9etc.ch/hg/aligner you can find some code which allows a cheap camera to be used for automatic alignment. The program uses OpenCV to grab frames from a camera and can then locate a template image inside the captured frame to determine the position of some prominent structure. We use this on our dispenser to automatically align to PCB traces. It is not especially fast or reliable when it comes to different lighting conditions, but it works quite well. A simple textual socket-based interface allows for remote control of it, so that a GladeVCP (which controls most of the special dispenser features) can use it during the production process. A python module providing some abstraction can be found in the src/ directory as well. Feel free to comment or ask questions about it. Maybe it's of use for someone else. Cheers, Philipp signature.asc Description: OpenPGP digital signature -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] center finder camera
Jon, I've recently been working with a USB fiberscope (a microscope camera for inspecting the ends of optical fibers). When we got the device in, I plugged it into my Linux box and the correct video4linux drivers automatically loaded, and within minutes I was looking at output with the Cheese webcam viewer. The camera was identifying as a known USB webcam device . I'd expect the one you're looking at would as well. There's no guarantee, of course. For my application, I used the video4linux library to read in frames and process them for my own purposes. Hope this helps, --Tim - Original Message - From: Jon Elson el...@pico-systems.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Friday, May 2, 2014 11:15:21 AM Subject: [Emc-users] center finder camera I know there has been some discussion about using cameras for center/edge finding with LinuxCNC. I just found a camera/microscope that looks REALLY ideal, but have no idea if there is a Linux driver for the camera chip. See eBay item http://www.ebay.com/itm/321060396782?ssPageName=STRK:MEWAX:IT_trksid=p3984.m1423.l2649 eBay item # is 321060396782 if the above line is messed up. it is 7 mm diameter, says 200X magnification. What I'd do is take a 3/4 R-8 end mill holder and fab a ring to permanently hold the scope, and have a groove for the cord to come out. Then, I'd find whatever pixel on the camera is at the center of rotation and make a permanent assignment of that pixel for the crosshairs. But, the eBay listing only specifies XP drivers. So, does anybody know how to find out whether there is a Linux driver for this camera? Any other comments on suitability of this unit? Thanks, Jon -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Plasma torch for cnc machine
hi Viesturs who is distribute in USA Jasic or similar plasma cutters? Do you have contact number? Is Jasic plasma durable - working good? thank you aram On Fri, May 2, 2014 at 5:07 AM, Viesturs Lācis viesturs.la...@gmail.comwrote: 2014-05-02 11:54 GMT+03:00 a k pccncmach...@gmail.com: I want to ask about Jasic Air Plasma machine. how you start stop plasma - ? because i need to it be controlled with CNC controller That is very simple - replace the manual button with something that is controlled by cnc controller - either a relay switch or anything else (optocoupler etc), depending on what kind of signal is going through those wires. In the welding robot there was a manual MIG welder, which had 8 V AC in the control button wires, so it took 2 output drivers on Mesa 7i37 to handle the AC part, while 8 V was much less of a problem. Viesturs -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Plasma torch for cnc machine
2014-05-02 21:28 GMT+03:00 a k pccncmach...@gmail.com: who is distribute in USA Jasic or similar plasma cutters? Do you have contact number? Since I am Latvia, right on the opposite side of the northern hemisphere from USA, I doubt I can share anything useful :)) Is Jasic plasma durable - working good? One of 3 LinuxCNC users in my country that I am aware of, owns Jasic plasma source and he recommended them to me. I personally do not yet have any experience with them. See few messages back in this very same thread - Dave wrote that it works quite well. Viesturs -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Leadshine ACS806 - Large f-error at higher speeds - what is acceptable?
Today I received a second AC806 drive in the mail. It is a V1 ACS806. The V1 is simpler to tune. It only has a current loop Kp and Ki, as well as position loop Kp, Ki, and Kd. I tried that on the same motor that the AVS806V2 is having trouble with. Following error is now down to under 20 counts at full velocity, about 1400rpm, and down to under 5 counts or so at low velocities. Which is well within my needs. So by process of elimination it is some form of setting on the AVS806V2 which is the problem. (which has more parameters, etc... involved with it) I'll keep troubleshooting the V2, but being that an older, basically identical drive is performing properly, that helps me eliminate motor/ps sizing concerns. On Fri, May 2, 2014 at 3:17 AM, Steve Blackmore st...@pilotltd.net wrote: On Thu, 1 May 2014 18:56:23 -0400, you wrote: Thanks to everybody for the information. If anything it helped me understand the nature of servos better as I've been sitting here tweaking the machine. So it has something to do with some sort of lag in the servo driver. I'll be emailing leadshine with my fingers crossed hoping they can help. Here are the Specs Position following error : +/-1 count Velocity accuracy: +/-2rpm Maximum acceleration speed (No Load) : 80 rpm/ms2 Input frequency up to 600 kHz Maximum speed : 4000 rpm Allowable low speed reaches1 rpm Positioning accuracy :+/-1 count Suitable for 18 - 80 VDC AC servo Are you within them? Have you used the available tuning software using the serial connection to the drive? If not you need to to see what's going on and tune it properly. You will need to adjust the Kp, Kd and Vp parameters. All explained in the software manual. Steve Blackmore -- -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Plasma torch for cnc machine
hypertherm = expensive consumables. i have a friend with one and he borrows my harbor freight 40 amper because my consumables cost 12 bucks to replace his are 50. i am leery of h.f tools especially at 650 bucks but alas after 8 yrs of ownership i think this is the best non commerecial plasma cutter available and definitely the cheapest to run . the torch is a high quality trafimet. my friend the other day told me if he could sell his ( original cost of 1200 bucks ) for what an hf unit costs (650) he would do it immediately. as to the esabs in a similar price range you get no pilot arc feature and again high consumable costs. i pondered the purchase for about 2 months going to hf 3 times and reviewing the product. i believe this to be the single best buy at harbor freight period. yes im a bit proud about this but after 8 yrs my concerns are no more and this has proven to be an excellent buy and ovbiously i would not hesitate to recommend one or replace mine with another if it gave in the ghost tomorrow with another just like it . well thats my .02 hope it helps jeremy youngs On Fri, May 2, 2014 at 10:05 AM, Roland Jollivet roland.jolli...@gmail.comwrote: Have a look at this https://www.youtube.com/watch?v=4knPtYjc2s8. I don't know if it's just good advertising, but I'd like one.. You also need to be aware of the 'start' methodology. HF noise etc. But from what I've read, you won't go wrong with Hypertherm. Roland On 15 April 2014 11:59, Viesturs Lācis viesturs.la...@gmail.com wrote: Hello! I was thinking about a plasma source like this: http://www.ebay.com/itm/251355364995 It is supplied with a torch that is meant for manual operation - the problem is that it is angled, not straight, which makes it not only more difficult to mount, but also takes up more space and also does not look that nice. I found a torch, whose description says that it is suitable for the previously mentioned plasma source: http://www.ebay.com/itm/151167833644 The second picture of that listing seems somewhat suspicious - I do not see, where the power cable lead should be connected. There is one small connector visible, but that certainly is not capable of 100A current. I would appreciate any advices or links, how other plasma users have solved this issue. Thanks in advance! Viesturs -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Question on screw machining
Greetings all; The screws I have to put in this used to be a micromill, are 8mm2.5's and have an outer diameter of about 9.25mm. I intend to turn them down to 8mm to fit in the existing bearing bosses, but with ball bearing thrust washers with an 8mm bore. But in grinding them down, its obvious I wall NOT have a good shoulder because the 8mm is just about the bottoms of the ball grooves. This means I will not have a good shoulder all the way around, and that implies that the ball thrust washers may tip. I am inclined to make a sleeve about 12 or 13mm OD, and at least 10mm long, and a bit small so I can heat it and hopefully drive it against the shoulder, and that it in turn will prevent the thrust washer from tilting. That would involve driving it around 80mm from the end of the screw. No clue if a shrink fitted sleeve could be driven that far in one blow of a dead blow hammer. But I don't have any better ideas ATM. Anybody else have an idea to offer? Thanks. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Question on screw machining
a pic? jeremy youngs On Fri, May 2, 2014 at 7:53 PM, Gene Heskett ghesk...@wdtv.com wrote: Greetings all; The screws I have to put in this used to be a micromill, are 8mm2.5's and have an outer diameter of about 9.25mm. I intend to turn them down to 8mm to fit in the existing bearing bosses, but with ball bearing thrust washers with an 8mm bore. But in grinding them down, its obvious I wall NOT have a good shoulder because the 8mm is just about the bottoms of the ball grooves. This means I will not have a good shoulder all the way around, and that implies that the ball thrust washers may tip. I am inclined to make a sleeve about 12 or 13mm OD, and at least 10mm long, and a bit small so I can heat it and hopefully drive it against the shoulder, and that it in turn will prevent the thrust washer from tilting. That would involve driving it around 80mm from the end of the screw. No clue if a shrink fitted sleeve could be driven that far in one blow of a dead blow hammer. But I don't have any better ideas ATM. Anybody else have an idea to offer? Thanks. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Question on screw machining
On 3 May 2014 00:53, Gene Heskett ghesk...@wdtv.com wrote: But in grinding them down, its obvious I wall NOT have a good shoulder because the 8mm is just about the bottoms of the ball grooves. Rather than grinding, consider trying a CBN insert, and the fastest spindle speed you can manage. (Turning with CBN tips is closest to single-point grinding, if the material isn't red hot and fizzing, you need more spindle speed). I am inclined to make a sleeve about 12 or 13mm OD, and at least 10mm long, and a bit small so I can heat it and hopefully drive it against the shoulder, Why bother making it so tight? If the aspect ratio is long enough then it can't help sitting square. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Question on screw machining
On Friday 02 May 2014 20:28:42 jeremy youngs did opine: a pic? I have one in the camera, but I'm a bit under the weather, too much sugar and too many sugar pills today. I'll get 2 more of the old screw, Its rusty, and the OEM bearing boss tomorrow and put them on my web page, posting the link. jeremy youngs On Fri, May 2, 2014 at 7:53 PM, Gene Heskett ghesk...@wdtv.com wrote: Greetings all; The screws I have to put in this used to be a micromill, are 8mm2.5's and have an outer diameter of about 9.25mm. I intend to turn them down to 8mm to fit in the existing bearing bosses, but with ball bearing thrust washers with an 8mm bore. But in grinding them down, its obvious I wall NOT have a good shoulder because the 8mm is just about the bottoms of the ball grooves. This means I will not have a good shoulder all the way around, and that implies that the ball thrust washers may tip. I am inclined to make a sleeve about 12 or 13mm OD, and at least 10mm long, and a bit small so I can heat it and hopefully drive it against the shoulder, and that it in turn will prevent the thrust washer from tilting. That would involve driving it around 80mm from the end of the screw. No clue if a shrink fitted sleeve could be driven that far in one blow of a dead blow hammer. But I don't have any better ideas ATM. Anybody else have an idea to offer? Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Question on screw machining
On Friday 02 May 2014 20:33:51 andy pugh did opine: On 3 May 2014 00:53, Gene Heskett ghesk...@wdtv.com wrote: But in grinding them down, its obvious I wall NOT have a good shoulder because the 8mm is just about the bottoms of the ball grooves. Rather than grinding, consider trying a CBN insert, and the fastest spindle speed you can manage. (Turning with CBN tips is closest to single-point grinding, if the material isn't red hot and fizzing, you need more spindle speed). Much of my tooling is indexable carbide inserts, so I'm fairly familiar with red hot swarf, and they do cut better at the higher temps, but that does not sound like CBN. Define? Also, these screws do not have countersinks in the ends, so I can't put it between centers so I can hog it and stay at dimension. Even to use a diamond disk in a dremel, I'll probably have to write a compensatory taper in the grinding code. I am inclined to make a sleeve about 12 or 13mm OD, and at least 10mm long, and a bit small so I can heat it and hopefully drive it against the shoulder, Why bother making it so tight? If the aspect ratio is long enough then it can't help sitting square. True, but I've no clue how hard these screws are, and would like to have it snug enough that it can't move peen the joint between the sleeve and the screws thread. That would have me chasing backlash that comes goes. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Question on screw machining
On 3 May 2014 01:43, Gene Heskett ghesk...@wdtv.com wrote: (Turning with CBN tips is closest to single-point grinding, if the material isn't red hot and fizzing, you need more spindle speed). Much of my tooling is indexable carbide inserts, so I'm fairly familiar with red hot swarf, and they do cut better at the higher temps, but that does not sound like CBN. Define? Cubic Boron Nitride, it tends to come as an insert in the insert: http://www.ebay.com/itm/371055717060 for example has one darker tip. I doubt you have seen red hot swarf quite like this: https://www.youtube.com/watch?v=BU14tfjUfQU Interestingly this video shows the same problem I have had, you need to have more back-out than normal or the tool drags on the return. Unless you have a very stiff machine then there will be more flex than normal, but that doesn't mean you can't hit size. The last screw I cut was on the Colchester Student at the Motor Club, and it was a revelation. Also, these screws do not have countersinks in the ends, so I can't put it between centers so I can hog it and stay at dimension. You can probably add one, the middles are normally quite soft. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] center finder camera
Gene, I had the same lag problem so I adjusted saturation and hue to 0, result is almost no lag monochrome is fine for edge finding. Cheers, Phill On May 3, 2014 2:31:59 AM GMT+10:00, Gene Heskett ghesk...@wdtv.com wrote: On Friday 02 May 2014 12:14:04 Jon Elson did opine: I know there has been some discussion about using cameras for center/edge finding with LinuxCNC. I just found a camera/microscope that looks REALLY ideal, but have no idea if there is a Linux driver for the camera chip. See eBay item http://www.ebay.com/itm/321060396782?ssPageName=STRK:MEWAX:IT_trksid=p3 984.m1423.l2649 eBay item # is 321060396782 if the above line is messed up. it is 7 mm diameter, says 200X magnification. What I'd do is take a 3/4 R-8 end mill holder and fab a ring to permanently hold the scope, and have a groove for the cord to come out. Then, I'd find whatever pixel on the camera is at the center of rotation and make a permanent assignment of that pixel for the crosshairs. But, the eBay listing only specifies XP drivers. So, does anybody know how to find out whether there is a Linux driver for this camera? Any other comments on suitability of this unit? Thanks, Jon I have one similar to that Jon, paid 22$ for it on fleabay, and am using the camunits drivers. Other than the lag of the image getting thru all the filters, about 4 seconds to update the screen when you move it, and the fact that it has self illuminating leds wrapped around the lens, making it somewhat less useful when the target is shiny (most metals are) because of the almost dead on illumination, it works well. I usually turn the dimmer in the cord down to nearly off use a strong low angle illumination from the side which doesn't give near as much specular illumination. But I don't have it spindle mounted, it is in a block of alu that I drilled for setscrews used to align the cameras center pixel with the non- adjustable crosshairs inserted by on of the filters, mounted on the right side of the spindle casting by 1 screw some Goop. So its about 1.5 from the spindle centerline. There are added buttons the align software puts up in the right hand panel, which can be use both to calibrate the offset, and to move the mill itself back and forth by the amount of offset determined. Once calibrated, that also works well. It also includes a means like for circuit boards, where you can drill a couple #80 witness holes, flip the board over and align the backside of the board even if its rotated an arbitrary amount by auto- compensating the co-ordinate system for the back of the board. Time to go put on a nose bag according to the better half. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- from my Nexus7 via K-9 Mail -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] center finder camera
On 05/02/2014 10:28 AM, andy pugh wrote: On 2 May 2014 16:15, Jon Elson el...@pico-systems.com wrote: eBay item # is 321060396782 if the above line is messed up. I have a similar one, I just tried it with Precise and Cheese and it Just worked There are a bunch of similar units. Some are 7mm, some 10mm and some other sizes. I'm not too clear if these endoscope cameras are good for the center finding purpose, as they list a 62 degree field of view, seems awfully wide for this. There's a $60 one listed as a pen microscope where they showed some pics and that seems to have a good close-up view. The others are not showing views, so it is harder to know. There is a pic from the HD5000 webcam in the Wiki at http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Adding_Digital_Zoom_To_Camview-Emc that is not very impressive, you might be able to get it within .1mm but that's about it. There's another pic here : http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Axis_Embed_Video That seems much more impressive, but I couldn't find what camera was used. Jon -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] center finder camera
On 05/02/2014 10:28 AM, andy pugh wrote: On 2 May 2014 16:15, Jon Elson el...@pico-systems.com wrote: eBay item # is 321060396782 if the above line is messed up. I have a similar one, I just tried it with Precise and Cheese and it Just worked OK, well, that is good news. We got two eyepiece cameras at work to put in place of a microscope eyepiece. One was total crap but worked with Linux. The other was quite good, but the camera chip, as far as I know, STILL has no Linux driver. The chip company will not release any details, so other than reverse engineering the Windows driver, there may never be one. Jon -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] center finder camera
On 05/02/2014 11:31 AM, Gene Heskett wrote: I have one similar to that Jon, paid 22$ for it on fleabay, and am using the camunits drivers. Other than the lag of the image getting thru all the filters, about 4 seconds to update the screen when you move it, Hmm, well, a 4 second lag is pretty bad, if you are using it to center parts under the spindle. What resolution is that camera? It seems the lower res ones may have faster update. Jon -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Question on screw machining
On Friday 02 May 2014 22:47:13 andy pugh did opine: On 3 May 2014 01:43, Gene Heskett ghesk...@wdtv.com wrote: (Turning with CBN tips is closest to single-point grinding, if the material isn't red hot and fizzing, you need more spindle speed). Much of my tooling is indexable carbide inserts, so I'm fairly familiar with red hot swarf, and they do cut better at the higher temps, but that does not sound like CBN. Define? Cubic Boron Nitride, it tends to come as an insert in the insert: http://www.ebay.com/itm/371055717060 for example has one darker tip. I doubt you have seen red hot swarf quite like this: https://www.youtube.com/watch?v=BU14tfjUfQU Interestingly this video shows the same problem I have had, you need to have more back-out than normal or the tool drags on the return. Unless you have a very stiff machine then there will be more flex than normal, but that doesn't mean you can't hit size. The last screw I cut was on the Colchester Student at the Motor Club, and it was a revelation. Also, these screws do not have countersinks in the ends, so I can't put it between centers so I can hog it and stay at dimension. You can probably add one, the middles are normally quite soft. No, I don't have any inserts like that. But the ones I do have are about the same price, north of $140 for a 10 pack. As for a support center dimple, I can usually make those if I can get my tailstock well enough aligned as I do have some cheap center drills. The tail stock adjusting facilities of a 7x12's tail stock aren't conducive to maintaining its alignment, and some of the error is vertical, it rises as I run the barrel out, which has no way to adjust at all short of scraping its base or the X sliders bottom. Genuine POS... I am probably accuracy ahead to just carefully set the 4 jaw, and expect to have to write a bit of X taper to compensate for headstock miss-alignment. Too bad screw comp is one dimensional, lengthwise. :( That might be best handled as an L10L2P1 R(+-)0.005?, or whatever R neutralizes it. Once established, I could put that in the default startup of the .ini. And doing 80 or 90 mm of the end of this screw would sure serve as a calibration run. I used a dremel with its bigger flat diamond wheel for something like this in the past, so with the dremel on slow screwed enough to clear the center mount, slow so the diamond doesn't get too hot, and the spindle idling at 200 rpm or less, it might take 2 or 3 days but once I get it running straight, I can turn out the lights get some sleep. Humm, mount my .0001 dial indicator on the tool post, put a pad on the end to straddle the grooves, and running the carriage back and forth should give me a ball park error for setting the R. Worth a try anyway. Because the carriage isn't front weighted enough (the x motor is on the rear), it does tend to turn about a thou as it rises off the v-way to bring the front gib in solid restraining contact, and that is best handled with a back out move before the retrace move. Adjusting those gibs is a genuine chore as the only way to access the adjustments is to drop the apron coupling and run the apron and nut out of the way. Even then, getting the tools in there to do it is a PITA. Wish I had a decent lathe in the first place. Sigh... Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] center finder camera
On Friday 02 May 2014 23:38:39 Phill Carter did opine: Gene, I had the same lag problem so I adjusted saturation and hue to 0, result is almost no lag monochrome is fine for edge finding. Cheers, Phill Aha! So I'm not the only oh look, a pony type out here, thanks for waving your arm. Glad to know I have company because it seems so lonesome otherwise. I hadn't considered that as being an artifact of decoding the color, but will, since mono is fine for this, and we aren't exactly inspecting colons with it, thanks. That lag is almost unsettling because you have to bump it a thou and wait for the image to show it. Not at all a speedy operation. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] center finder camera
On Friday 02 May 2014 23:51:25 Jon Elson did opine: On 05/02/2014 11:31 AM, Gene Heskett wrote: I have one similar to that Jon, paid 22$ for it on fleabay, and am using the camunits drivers. Other than the lag of the image getting thru all the filters, about 4 seconds to update the screen when you move it, Hmm, well, a 4 second lag is pretty bad, if you are using it to center parts under the spindle. What resolution is that camera? It seems the lower res ones may have faster update. Jon I am not sure, but 640x480 comes to mind. It can go higher, but the resultant image does not seem to improve. Going lower seems to cause it to slow because of the time it spends decimating the data down to the lower dimensions. Or at least thats my present theory, based on what I know about tv cameras in general. Higher probably slows because of the sheer data coming in thru the USB port. Mine is plugged into a front port on a D525MW equipt ARK lunchbox, which could be a 1.1 port. A 2.0 port should handle it. So lets look, it is plugged into: Bus 001 Device 003: ID 058f:5608 Alcor Micro Corp. And: That is a 1.1 hub. Only this hub is a 2.0 hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub And I haven't a clue which of the usb ports, 4 on the rear, 2 on the front, might be that 2.0 port. It might do to experiment and see if I can find a faster port... And TBT, I am surprised hugely that a motherboard as new as the D525MW is so poorly equipt with usb2.0 stuffs. Mind boggling even. But both os them report: gene@lathe:~$ sudo lsusb Bus 005 Device 002: ID 046d:c517 Logitech, Inc. LX710 Cordless Desktop Laser Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub gene@lathe:~$ -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free. http://p.sf.net/sfu/SauceLabs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
