Re: [Emc-users] ... unexpected real time delay --> iptables: Permission denied (you must be root)

2019-07-22 Thread Gregg Eshelman via Emc-users
Static IP addresses on private networks ensure that things will work and stay working. I tried using DHCP assigned IP addresses for my printers with built in network interfaces, and before those the external HP JetDirect network printer interfaces. The problem was whenever there was a power

Re: [Emc-users] looking for help on the best way to implement a Latching E stop circuit

2019-07-21 Thread Gregg Eshelman via Emc-users
Emergency Stop buttons are made so that the knob locks in when pushed and has to be rotated to unlock it so it can come out. Breakout boards, VFDs, and various other machine control equipment often has E-Stop inputs which can be wired in a circuit so one or more buttons can be used to stop

Re: [Emc-users] Spindle experiences/recommendations?

2019-06-26 Thread Gregg Eshelman via Emc-users
I've read that centripetal force is "pushing inward" which sounds like utter baloney to me. When anything is spinning, nothing is pushing inward. It's going around in a circle with every atom attempting to fly outward. If the spinning thing is hollow and there are loose objects inside it, such

Re: [Emc-users] Raspberry Pi 4 on sale now from $35

2019-06-24 Thread Gregg Eshelman via Emc-users
Ethernet is not on USB. The Pi 4 uses new/different controllers for USB 3.0 and Ethernet so they can run full speed instead of half the speed of USB 2 and half the speed of 100 megabit Ethernet on the Pi 3. Finally a Raspberry Pi can make a decent NAS host by connecting a pair of USB3.0

Re: [Emc-users] LinuxCNC Processor

2019-06-13 Thread Gregg Eshelman via Emc-users
I'm still wanting Stepstick/Pololu screw terminal breakout boards for easy and rugged connection of external stepper drivers. I could probably design some, send off to OSHpark or somewhere and have four of them for a $20 in a couple of weeks, then I'd have to buy the header pins and connectors.

Re: [Emc-users] LinuxCNC Processor

2019-06-13 Thread Gregg Eshelman via Emc-users
The ProLight PLM 2000 benchtop bed mill used an Animatics servo controller. All the brains were in the box and it had capabilities to run headless (which ProLight never used). All the computer did was feed it G-Code and monitor for over-torque, end stop, and E stop signals. Moog-Animatics

Re: [Emc-users] serial port question in testing iso

2019-06-03 Thread Gregg Eshelman via Emc-users
A search for de9 to db25 rs232 adapter Turns up many of them for cheap. A computer shop that's been around long enough ought to have one or more laying around, might even give it to you to avoid throwing it away. Irritating that companies for whom cables are their specialty are using the

Re: [Emc-users] Dual boot for WIN-XP and LinuxCNC

2019-05-26 Thread Gregg Eshelman via Emc-users
SATA port multiplier, or if there's an open PCIe x1 slot get a SATA card for it. Either can be found cheap on eBay. On Sunday, May 26, 2019, 10:17:36 AM MDT, Gene Heskett wrote: I'd got an older 60GB Kingston SSD in the dell running the G0704.  Linux only, useing around 15GB of it,

Re: [Emc-users] How come....

2019-05-19 Thread Gregg Eshelman via Emc-users
There seems to be a pretty good supply of battery packs from wrecked Tesla Model S cars, often with fairly low mileage. People have been taking those apart to shoehorn the modules and one or both motor drivetrains into various other vehicles. Of course by doing that they lose the crash

Re: [Emc-users] How come....

2019-05-18 Thread Gregg Eshelman via Emc-users
ormation.  Tesla has adopted the software rental model where the customer doesn't really own anything. On 5/18/19 3:06 AM, Gregg Eshelman via Emc-users wrote:> Look up Rich Rebuilds on YouTube. He built himself a really cheap Tesla Model S by buying one that was in a flood and another th

Re: [Emc-users] Lead acid batteries

2019-05-18 Thread Gregg Eshelman via Emc-users
That's what I've read about telco backup batteries. They aren't built for rapid or deep discharge. They're made to sit there for a long time, being float charged, just waiting for very rare power outages. Thus they are a poor choice for storage for an off grid power system fed by solar, wind,

Re: [Emc-users] How come....

2019-05-18 Thread Gregg Eshelman via Emc-users
These look interesting. Caps that push onto the ends of 18650 cells then snap together. Metal bus bars connect the cells in any configuration you want. https://vruzend.com/ There are videos on YouTube from various people testing them. The connection resistance is less than spring clips but

Re: [Emc-users] How come....

2019-05-18 Thread Gregg Eshelman via Emc-users
Look up Rich Rebuilds on YouTube. He built himself a really cheap Tesla Model S by buying one that was in a flood and another that was rolled. Stripped the flooded one of nearly everything, put the electrics and electronics from the rolled one into it, then sold a bunch of leftover parts. Now

Re: [Emc-users] How come....

2019-05-14 Thread Gregg Eshelman via Emc-users
One of these days I'm expecting to see someone build a power wall style installation that uses lithium ion power tool batteries plugged into sockets. Imagine a closet full of Ryobi ONE+ 18 volt batteries. Buy them used, old ones on clearance etc. The practical aspect is the ONE+ batteries have

Re: [Emc-users] Atomic pi

2019-05-14 Thread Gregg Eshelman via Emc-users
What would be very useful is a little PC box made so it's built in peripherals leave a 64K free space between 640K and 1024K in the default location for LIM EMS 4.0. Even better would be a 32 megabyte chip on board for a hardware implementation of EMS. With today's tech-fu that chip could be

Re: [Emc-users] Servo reduction for gantry machine

2019-04-28 Thread Gregg Eshelman via Emc-users
Another way to drive both sides with one motor is screw shafts down both sides, connected at both ends with chains or belts. Use angular contact bearings on the ends of the screw shafts so they can be put under some tension for high speed running without whip.

Re: [Emc-users] Servo reduction for gantry machine

2019-04-27 Thread Gregg Eshelman via Emc-users
With a physical connection between the two sides, the gantry cannot get out of square, aside from a serious mechanical problem. It also frees up a motor driver for other use or eliminates the need for one driver. The software is also simpler because it doesn't need to be able to ensure that the

Re: [Emc-users] Looking fro some input from the community

2019-04-24 Thread Gregg Eshelman via Emc-users
What about ECP mode, which requires DMA? Originally the LPT port was output only, no ifs, and, buts, or inputs. Built to the original specs there should be no way at all to push data into the port. But naturally some manufacturers didn't stick 100% to the specs. Then various hackers figured

Re: [Emc-users] Servo reduction for gantry machine

2019-04-23 Thread Gregg Eshelman via Emc-users
If you need height clearance for a cross shaft, mount the shaft up high and run 1:1 belts or roller chains down the ends. Or if the table is stiff enough to only need supports at the ends you can run the shaft under the table, and have the racks on the bottom so dust and crud can't fall into

Re: [Emc-users] Servo reduction for gantry machine

2019-04-23 Thread Gregg Eshelman via Emc-users
Rack teeth are easy to machine because they have straight sides to mesh with involute gear teeth. Another method like using the belt is a roller chain stretched between anchor points and looped under two idlers and over a drive sprocket between and above or below the idlers. With any rack or

[Emc-users] Vacuum bed for router Re: Servo reduction for gantry machine

2019-04-23 Thread Gregg Eshelman via Emc-users
On Tuesday, April 23, 2019, 2:06:27 AM MDT, Les Newell wrote: What sort of work are you going to use this router for? If you are processing sheet materials I would strongly recommend using a vacuum bed. If you are using blanks, vacuum pods work well. Les Somewhere I saw a very clever design

Re: [Emc-users] ER ATC tool idea

2019-04-21 Thread Gregg Eshelman via Emc-users
With the post and spindle a degree off, that's a likely contributor to various issues. It would definitely increase forces on the tooling when rigid tapping. Rather than messing about with shims I'd be taking the thing apart and finding a shop where I could borrow the use of a bigger mill to

Re: [Emc-users] ER ATC tool idea

2019-04-21 Thread Gregg Eshelman via Emc-users
On Sunday, April 21, 2019, 5:47:22 PM MDT, Gene Heskett wrote: On Sunday 21 April 2019 14:51:31 Bruce Layne wrote: > I don't need to use an impact wrench to tighten and loosen the drawbar > to prevent TTS tooling from pulling out.  Something isn't right there, > Gene.  Maybe some of the

Re: [Emc-users] milling tool life, or lack thereof.

2019-04-21 Thread Gregg Eshelman via Emc-users
Is that still requiring an internet connection in order to use it? There are plenty of would-be customers who've said "No way!" to that software because they don't have and don't want any internet connected computers in their shops. On Sunday, April 21, 2019, 3:02:33 PM MDT, Gene Heskett

Re: [Emc-users] ER ATC tool idea

2019-04-20 Thread Gregg Eshelman via Emc-users
Why not use a 6 point 10mm impact socket? https://www.grainger.com/category/tools/ratchets-and-sockets/impact-sockets-and-bits/impact-sockets?attrs=Size%7C10mm=attrs On Saturday, April 20, 2019, 2:33:55 PM MDT, Gene Heskett wrote: The only way I can be assured that a 3/4" shank of a TTS

Re: [Emc-users] ER ATC tool idea

2019-04-19 Thread Gregg Eshelman via Emc-users
Set screw tool holder accuracy is down to how precisely the holders are made. A lightly oiled tool should pop when pulled out of the holder. Where this type of holder doesn't do as well as a collet is in heavy production work. They need to be monitored for getting bellmouthed. A precision rod

Re: [Emc-users] ER ATC tool idea

2019-04-19 Thread Gregg Eshelman via Emc-users
The set screw isn't angled, that flat ground into the side of the tool shank is angled. On Thursday, April 18, 2019, 8:21:46 PM MDT, Ken Strauss wrote: I have used some reasonable quality holders for Weldon shank tools -- Bison R8 holders and Tormach TTS -- and none had angled

Re: [Emc-users] ER ATC tool idea

2019-04-19 Thread Gregg Eshelman via Emc-users
unlike Morse tapers. On Thursday, April 18, 2019, 8:16:28 PM MDT, TJoseph Powderly wrote: Greg thanks On 04/19/2019 08:36 AM, Gregg Eshelman via Emc-users wrote: > > The Weldon style has a set screw flat that's angled toward the cutting > end. > Tighten the set screw on it

Re: [Emc-users] ER ATC tool idea

2019-04-18 Thread Gregg Eshelman via Emc-users
The Weldon style has a set screw flat that's angled toward the cutting end. Tighten the set screw on it and the tool is forced upwards until the deeper end of the flat contacts the side of the set screw. That makes the too resistant to shifting axially, preventing loosening or shifting of tool

Re: [Emc-users] EDA Software (Was: ConFusion 360)

2019-03-24 Thread Gregg Eshelman via Emc-users
er to the output connector on the CRAMPS board. So you can use the pin header to run on off board drive. If you are interested I can send you the schematic for the board. If the link above doesn’t work, here is the URL <https://oshpark.com/shared_projects/2p1xADDj> Alan > From: Greg

Re: [Emc-users] EDA Software (Was: ConFusion 360)

2019-03-23 Thread Gregg Eshelman via Emc-users
What I've been wanting someone to make are screw terminal breakout boards for Pololu or StepStick sockets so that Step, Dir, Enable etc connections can be made to bigger external motor drivers from a CRAMPS, RAMPS and any other small control board made for use with those little drivers. On

Re: [Emc-users] ConFusion 360

2019-03-23 Thread Gregg Eshelman via Emc-users
If you have Windows 7 or 8 installed you can upgrade for free. Find the gatherosstate.exe file on the Windows 10 disc or ISO. Copy it to the desktop and run it. Copy the genuineticket file it creates somewhere off the computer. Now you can erase the installed Windows and do a clean install of

Re: [Emc-users] OT: Where's them fires. [Was: Re Conversational mode.

2019-03-11 Thread Gregg Eshelman via Emc-users
Three Mile Island and Chernobyl get all the attention because TMI was a meltdown and Chernobyl exploded and melted, there's a solidified blob of insanely radioactive stuff in the basement. It used to visibly glow but has cooled down in temperature over they years. But the other deadly nuclear

Re: [Emc-users] OT: Where's them fires. [Was: Re Conversational mode.

2019-03-11 Thread Gregg Eshelman via Emc-users
Pebble bed reactors work quite well and are meltdown proof. A core of enriched uranium pellets are surrounded by seven alternating layers of ceramic and graphite. Detractors of the design claim that there are always cracks in the layers. Big deal, that's why there are seven layers. The chance

[Emc-users] More cheap solar. Re: OT: Where's them fires. [Was: Re Conversational mode.

2019-03-11 Thread Gregg Eshelman via Emc-users
This one has to be too good to be true. https://www.ebay.com/itm/1500w-Flexible-Solar-Panel-Kit-System-120A-Controller-3000w-Inverter-House-Boat/333107282098 Says it includes 15 100W panels, connecting cables, inverter etc. for $89. Dunno what else would be required to tie it into a domestic

[Emc-users] Cheap vs expensive solar Re: OT: Where's them fires. [Was: Re Conversational mode.

2019-03-11 Thread Gregg Eshelman via Emc-users
This guy in Australia tested a cheap $90 100 watt panel and one that cost a lot more. The $90 panel significantly out performed the expensive panel.https://www.youtube.com/watch?v=3-sc4rlV93g Commenters noted that the cheap panel is using PV cells of the newest technology, with all contacts on

Re: [Emc-users] OT: Where's them fires. [Was: Re Conversational mode.

2019-03-11 Thread Gregg Eshelman via Emc-users
1982 is a spring chicken for an American nuclear power plant. Three Mile Island and Fukushima are older, with the walls of lamps, switches and gauges. On Sunday, March 10, 2019, 10:18:07 AM MDT, Jon Elson wrote: On 03/09/2019 10:43 PM, Gregg Eshelman via Emc-users wrote

Re: [Emc-users] OT: Where's them fires. [Was: Re Conversational mode.

2019-03-09 Thread Gregg Eshelman via Emc-users
Three Mile Island's containment worked. Only a small amount of radioactive steam got outside. What prolonged the incident was the location of an indicator lamp. While the crew was clustered in one spot trying to figure out where all the water they were pumping into the core was going, the light

[Emc-users] A new old servo amp power supply design.

2019-02-26 Thread Gregg Eshelman via Emc-users
When the often repaired servo amplifier power supplies at the Keck Telescope needed replaced, rather than bodged yet again, Andrew decided to reverse engineer them and build new ones using current components. He's made all the documentation and files available for anyone who wants to duplicate

Re: [Emc-users] OT note to Erik C - Solar batteries

2019-02-13 Thread Gregg Eshelman via Emc-users
Here's a fellow in AU with a test of cheap vs expensive solar panels. Turns out the $90 panel puts out significantly more amps than the $300 panel he bought.https://www.youtube.com/watch?v=3-sc4rlV93g Some commenters note the cheap panel is using the newest thing in PV cells. No contact wires

[Emc-users] Found a cheap mill for refit in Lewiston, ID

2019-02-09 Thread Gregg Eshelman via Emc-users
Says it has a bad transformer and the RS232 port doesn't work, but for $500 could be a good CNC refit project, especially since the old Anilam Crusader system was so terribly slow. https://lewiston.craigslist.org/tls/d/clarkston-anilam-lagun-ftv-2s-cnc/6814877365.html

Re: [Emc-users] Latching Output multiplexing in HAL

2019-02-02 Thread Gregg Eshelman via Emc-users
Any chips on the control panel, especially directly on the keyboard or one the keyboard is connected to via a multi-wire cable? Somewhere in there may be a matrix encoder and RS232C chip. If you have RS232C then it should be possible to tap into that to feed character data into a modern control

[Emc-users] Massive backup Re: color me pissed

2019-01-15 Thread Gregg Eshelman via Emc-users
LTO-6 drives can put 2.5TB uncompressed onto one tape and can be picked up at a decent price since they're 2 generations behind the latest. LTO-7 puts 6TB uncompressed onto a tape but used/surplus drives are still going for over $1K.LTO-8 does 12TB uncompressed but you'll need to drop over $3K

Re: [Emc-users] color me pissed

2019-01-13 Thread Gregg Eshelman via Emc-users
Have the authors of those programs ever actually used a properly functioning text editing program? Can xmlcopyeditor even open the files it saves?I have, several times over the years, run into programs that could save in formats they could not open, or would auto-corrupt files they'd just saved

[Emc-users] Cardiac electronics VS the outside world Re: G10 L2 R-90 isn't working?

2019-01-10 Thread Gregg Eshelman via Emc-users
Here's some info, but the full article is behind a subscribe wall. Might be available from another source. https://www.uptodate.com/contents/cardiac-implantable-electronic-device-interactions-with-electromagnetic-fields-in-the-non-hospital-environment On Thursday, January 10, 2019, 3:42:51

Re: [Emc-users] tool changer with swiveling arm

2019-01-07 Thread Gregg Eshelman via Emc-users
How many sockets on that chain? Could it run the other direction? What about modifying to be able to number the chain sockets so the tool locations can be tracked? Could still have it so that if it finds an empty socket or wrong tool number in a socket it would do a full pass on the chain to

Re: [Emc-users] tool changer with swiveling arm

2019-01-06 Thread Gregg Eshelman via Emc-users
I've seen some that have each tool holder coded and read the holders in the chain or carousel as it moves. The system has no idea where any of the tools are but it does know the difference between an empty spot and one with a tool. So when a tool is requested it just runs the carousel or chain

Re: [Emc-users] Done with that panel code, with one exception

2018-12-19 Thread Gregg Eshelman via Emc-users
An easier way to get the round corners in a D-Sub cutout is to use an endmill with the radius of the corners then make the trapezoid with sharp corners. Offset to the inside and let that and the tool size take care of the round corners. ___

Re: [Emc-users] OT: 'touch' screen

2018-12-01 Thread Gregg Eshelman via Emc-users
HP made a CRT monitor that had IR emitters and sensors aimed vertically and horizontally. They had to be mounted pretty far forward to clear the curve of the tube and resolution was very low. Software using it was limited to having its active spots at the intersections of the emitter and sensor

Re: [Emc-users] 5i25 gpio's

2018-10-27 Thread Gregg Eshelman via Emc-users
PCIe to SPi 'demo board'. https://www.asix.com.tw/products.php?op=pItemdetail=256;74;110Docs and drivers at the bottom of the page On Saturday, October 27, 2018, 1:43:43 AM MDT, Gene Heskett wrote: The spi port on the pi is faster, but I've not found an spi card for x86 machinery yet.

Re: [Emc-users] OT: led laser collimating

2018-10-08 Thread Gregg Eshelman via Emc-users
Be careful with the DPSS type of green lasers. They can put out powerful infrared along with the green.https://www.skyandtelescope.com/astronomy-news/observing-news/green-lasers-a-hidden-danger/ On Monday, October 8, 2018, 8:48:20 AM MDT, Roland Jollivet wrote: Has anyone here

Re: [Emc-users] Vacuum table Re: Yet another topic about gantry homing

2018-10-07 Thread Gregg Eshelman via Emc-users
:07, Gregg Eshelman via Emc-users (< emc-users@lists.sourceforge.net>) escribió: > You could make the vacuum table with several zones, connected with a PVC > pipe manifold and ball valves to close off sections you're not using. That > would be easier than keeping stuff around to

[Emc-users] Vacuum table Re: Yet another topic about gantry homing

2018-10-06 Thread Gregg Eshelman via Emc-users
You could make the vacuum table with several zones, connected with a PVC pipe manifold and ball valves to close off sections you're not using. That would be easier than keeping stuff around to lay over unused sections of the table. ___ Emc-users

Re: [Emc-users] Yet another topic about gantry homing

2018-10-04 Thread Gregg Eshelman via Emc-users
https://www.youtube.com/watch?v=vETkf1sqo3M=220s On Thursday, October 4, 2018, 3:41:58 PM MDT, Gregg Eshelman via Emc-users wrote: Here's a way to drive the gantry with roller chains. Using fewer changes of drive is always better since going from a shaft, to worm gear, to rack

Re: [Emc-users] Yet another topic about gantry homing

2018-10-04 Thread Gregg Eshelman via Emc-users
Here's a way to drive the gantry with roller chains. Using fewer changes of drive is always better since going from a shaft, to worm gear, to rack and pinion has more places for backlash. The same mechanism as in this video can be used with lengths of toothed belt. Roller chain drive Plasma

Re: [Emc-users] Yet another topic about gantry homing

2018-10-03 Thread Gregg Eshelman via Emc-users
The easiest method is mechanically connect the two sides with a shaft along the gantry and use one motor. Then it *cannot rack* or have any of the other issues that can happen with driving both sides of a constrained axis with two motors. If you need more Z height, you can elevate the racks on

Re: [Emc-users] More on bed wear fix

2018-09-26 Thread Gregg Eshelman via Emc-users
The one I have was made by Avenger Products, model 21400. Uses G13A batteries. The company appears to have been bought by Jewett-Cameron circa 2011 and this particular product discontinued. Web archive! https://web.archive.org/web/*/http://www.avengerproducts.com:80/laser.asp Focus is

Re: [Emc-users] More on bed wear fix

2018-09-26 Thread Gregg Eshelman via Emc-users
The V2 8 megapixel camera for Raspberry Pi uses the Sony IMX219 sensor which is a bit over 5mm wide by a bit under 5mm tall. They call it 1/4" diagonal. Should be able to hit that with a laser beam, if the pinhole lens can be removed. The first model Pi camera used the (since discontinued)

Re: [Emc-users] More on bed wear fix

2018-09-24 Thread Gregg Eshelman via Emc-users
RealD 3D glasses are inexpensive.https://www.amazon.com/gp/offer-listing/B005Q3HFB8/ref=dp_olp_all_mbc?ie=UTF8=all How they workHow RealD 3D Works | | | | | | | | | | | How RealD 3D Works Follow us at: RealD.com Twitter.com/RealD3D Facebook.com/RealD3D Instagram: @RealD3D | |

Re: [Emc-users] More on bed wear fix

2018-09-23 Thread Gregg Eshelman via Emc-users
A circular polarizing filter, like from a pair of RealD 3D movie glasses, seems to both dim and 'sharpen' a LASER beam somewhat. What it doesn't do is make the beam split into a row of dots like a linear polarizing filter does. ___ Emc-users mailing

Re: [Emc-users] Multi-spindle support

2018-09-17 Thread Gregg Eshelman via Emc-users
Too bad they recorded the video with a potato. 240p, posted in 2013. YouTubing like it's 2005! On Monday, September 17, 2018, 9:25:39 AM MDT, Todd Zuercher wrote: What would be impressive is when we can make Linuxcnc run a machine like this.

Re: [Emc-users] bed wear seems to have bit me.

2018-09-13 Thread Gregg Eshelman via Emc-users
Or you could just find a straight spindle so you can get to machining with the machine instead of spending time machining to try and fix the machine. ;) On Wednesday, September 12, 2018, 6:16:06 PM MDT, Gene Heskett wrote: Greetings everybody; When I was making the adaptation of

Re: [Emc-users] correct x error from bed wear

2018-09-10 Thread Gregg Eshelman via Emc-users
I have a LASER that is made to mount in a chuck or collet. It has alignment screws and adjustable focus. Aim it at a wall far away and adjust the focus for as small a dot as possible. Make a target to mount on the carriage, chuck and center the body of the LASER then use the alignment screws

Re: [Emc-users] update version on working machine

2018-08-24 Thread Gregg Eshelman via Emc-users
Goldenfir SSDs test out to be as good as Micron's mid-range models, because they use the same controller chip and memory chips as Micron's mid range, but cost much less. Unlike how many companies publish absolute best case performance for their storage, this guy's benchmarks are well above

Re: [Emc-users] Success story and a question

2018-08-09 Thread Gregg Eshelman via Emc-users
Well that's certainly a failure in design / programming by the manufacturer. I'd have it so that when re-enabling Z the first and only thing it would be able to do is rehome Z up so it knows where Z is. Even if the manual says the operator has to power cycle and rehome everything after using Z

Re: [Emc-users] Tap Hats [Was: Re: More on er-20 stuffs

2018-05-11 Thread Gregg Eshelman via Emc-users
An idea for putting a square hole at the end of a round one, without having to use special tooling. Mill brass bar stock into a pair of small L shapes, with one leg just as long as the width of the tap shank.Position the two pieces to make a square hole then silver solder together. Cut off

Re: [Emc-users] Tap Hats [Was: Re: More on er-20 stuffs

2018-05-11 Thread Gregg Eshelman via Emc-users
Rent space on the tower for cell phone and wireless internet antennas. That's what the grain elevator across the street from me did, top of one building has phone antennas all around it. On Friday, May 11, 2018, 6:46:50 AM MDT, Erik Christiansen wrote: On

Re: [Emc-users] Tap Hats [Was: Re: More on er-20 stuffs

2018-05-11 Thread Gregg Eshelman via Emc-users
Like these? Transmission Gear Kit | Steel Gear Kit - LittleMachineShop.com | | | | $54.95 | | | | | | | Transmission Gear Kit | Steel Gear Kit - LittleMachineShop.com Never break expensive or hard-to-replace gears again! Once installed on your mini mill, this kit replaces plasti...

[Emc-users] eBay links Re: More on er-20 stuffs

2018-05-10 Thread Gregg Eshelman via Emc-users
Report that security hole to eBay. The site should check for an authorization cookie etc and if not found,, don't load the site with your account logged in. On Thursday, May 10, 2018, 6:16:17 PM MDT, Gene Heskett wrote: On Thursday 10 May 2018 07:22:40 Gene

Re: [Emc-users] More on er-20 stuffs

2018-05-10 Thread Gregg Eshelman via Emc-users
To use those with a TTS or other 3/4" R8 (or 4C) collet you'll need adapter rings. Like these. https://www.tormach.com/store/index.php?app=ecom=prodshow=32432 They used to have thinner ones that had to be glued on with epoxy. Looks like they're going (or already have gone) to making only the

Re: [Emc-users] Mill Head Travel.

2018-05-08 Thread Gregg Eshelman via Emc-users
I'd expect most to get it trammed, tighten the bolts extra, and leave it alone. Some companies doing Bridgeport or clone CNC builds made rigid rams without any ability for the head to tilt or nod. A few went so far as to make even the head custom, without any capability of having manual

Re: [Emc-users] MC1650LS motor controller for CNC?

2018-05-08 Thread Gregg Eshelman via Emc-users
and MC1650 are supposed to be PWM. Many people have successfully used MC2100 controllers and treadmill motors on lathes, drill presses and other things. On Monday, May 7, 2018, 11:44:09 PM MDT, Gene Heskett <ghesk...@shentel.net> wrote: On Monday 07 May 2018 22:56:15 Gregg Eshelman v

Re: [Emc-users] Pendants for LinuxCNC or MachineKit

2018-05-07 Thread Gregg Eshelman via Emc-users
eBay links can be reduced to just this https://www.ebay.ca/itm/271618047181 On Monday, May 7, 2018, 10:50:51 AM MDT, Ken Strauss wrote: One can delete all of the tracking garbage starting with the question mark:

[Emc-users] MC1650LS motor controller for CNC?

2018-05-07 Thread Gregg Eshelman via Emc-users
The MC1650LS motor controller looks like a decent alternative to the MC2100. It's newer and smaller yet is used with the same types of high volt DC brush type exercise equipment motors. And prices are lower. Problem is I can't find diddly on connection diagrams or what sort of extra bits are

Re: [Emc-users] Thinking about going off-line eventually.

2018-04-15 Thread Gregg Eshelman via Emc-users
Some States are absolutely nuts on ground source heat pump regulations. In Idaho there's no special regulations (AFAIK) on open loop ones. Take water in (from a well or city supply) and dump it in the open, down a storm drain or into a body of water, or put it down another well. Seems rife with

Re: [Emc-users] revers tool path.

2018-03-10 Thread Gregg Eshelman via Emc-users
I've been trying to find a program or online converter that can take a non-symmetric G-Code and mirror image it to cut the opposite shape while still running around it clockwise. There is one for Windows that can split code in half and rotate it so that with proper fixturing a mill can be used

Re: [Emc-users] non-contact position sensors, surprisingly good performance.

2018-02-21 Thread Gregg Eshelman via Emc-users
Screw whip and bending can be mitigated by putting it under some tension, with angular contact ball or tapered roller bearings at the ends. On Sunday, February 18, 2018, 10:47:47 AM MST, Chris Albertson wrote: If you are bending a screw the speed does not

Re: [Emc-users] CSS and spindle-at-speed during a G33

2018-02-07 Thread Gregg Eshelman via Emc-users
Apply spinach to the X axis and there will be carnage? On Wednesday, February 7, 2018, 12:51:16 PM MST, wrote: Thanks Chris…for both the information and one of the most apropos example of autocorrect I have ever seen. "The spinach is turning in x-direction the carnage

Re: [Emc-users] Potential 4th Axis

2018-01-08 Thread Gregg Eshelman via Emc-users
What I can't find on those Harmonic Drive brand harmonic drives is one single useful bit of information on how big or small they are. All I've been able to find are motor size numbers, that appear to be something proprietary, they're not listed as NEMA or any other standard, just plain numbers.

Re: [Emc-users] 240V single phase input vfd

2018-01-03 Thread Gregg Eshelman via Emc-users
othing to the cost of the drive. Les On 02/01/18 23:35, Gregg Eshelman via Emc-users wrote: > I run the VFD (that's never varied) on my old Monarch lathe without using > braking. It has terminals to connect a braking resistor but for this machine > there's no need. >  > What I find c

Re: [Emc-users] 240V single phase input vfd

2018-01-02 Thread Gregg Eshelman via Emc-users
The one I have on my old Monarch lathe, to start in higher speed gears I have to slip the clutch a bit or it'll quit with an overcurrent fault. In lower gears I can just pull the lever. There may be some programmable adjustment that can fix that, but it works as it's setup now. One crazy thing

Re: [Emc-users] 240V single phase input vfd

2018-01-02 Thread Gregg Eshelman via Emc-users
I run the VFD (that's never varied) on my old Monarch lathe without using braking. It has terminals to connect a braking resistor but for this machine there's no need. What I find crazy is that a simple, single function device that only converts single phase to three phase, without all the

Re: [Emc-users] 240V single phase input vfd

2018-01-01 Thread Gregg Eshelman via Emc-users
Or just get a proper single phase to three phase VFD and do the job right. For under $200 you can get a 230V 1PH in drive that'll run up to a 3HP 3PH https://www.wolfautomation.com/products/ac-drives On Monday, January 1, 2018, 10:49:12 AM MST, John Figie wrote:

Re: [Emc-users] Off topic: wolfrom drive

2017-12-15 Thread Gregg Eshelman via Emc-users
Internal gears can be rotary broached. It uses a tool similar to what's on that shaper but both tool and gear blank are rotating pretty quick. Takes just one pass. Splines can be cut the same way. On Friday, December 15, 2017, 4:19:44 AM MST, andy pugh wrote: But I

Re: [Emc-users] oddball job

2017-11-23 Thread Gregg Eshelman via Emc-users
What's the model of Cadillac? If it's rear wheel drive the gears are readily available from places like bowtieoverdrives.com Advance Auto Parts shows speedo drive and driven gears for front drive GM cars. Would be an interesting project to try, but the part should be available off the shelf.

Re: [Emc-users] Odd encoder problem

2017-11-01 Thread Gregg Eshelman via Emc-users
Basics first. Disconnect power, unplug and re-connect all plugs, loosen and tighten all screw terminals. Re-test. Eliminates any minor corrosion or possible looseness causing an intermittent. On Wednesday, November 1, 2017, 5:47:05 PM MDT, Eric H. Johnson wrote:

[Emc-users] SB MagnaTurn in Massachusetts

2017-10-29 Thread Gregg Eshelman via Emc-users
Looks like a nice refit project for not a bad price. If this MagnaTurn 1218 wasn't on the other side of the continent... South Bend MagnaTurn 1218 CNC Lathe 8 position turret PC/CNC control .15HP | eBay | | | | $2500.00 | | | | | | | South Bend MagnaTurn 1218 CNC Lathe 8 position

Re: [Emc-users] New $33 60GB SSD's from newegg

2017-10-28 Thread Gregg Eshelman via Emc-users
SSD's, SD-Card, Compact Flash and most other solid state, writable storage has built in wear leveling. Why SSD's need the TRIM done is because when data is deleted it's only marked as deleted but isn't immediately marked as being available to be written over, unlike disk drives where a file

Re: [Emc-users] New $33 60GB SSD's from newegg

2017-10-28 Thread Gregg Eshelman via Emc-users
I always thought SATA was a silly idea. Change from a parallel interface that handles a whole byte at a time (or two or four bytes for various SCSI types) to an interface that handles one bit at a time, requiring buffers to split up and assemble bytes to pass onto the rest of the computer that

Re: [Emc-users] PC MB for Linux.

2017-10-17 Thread Gregg Eshelman via Emc-users
Is the motherboard AGP 8x compatible? There can be issues plugging an 8x video card into a board with a slower slot. The AGP standard has provisions for backward compatibility but they were for the most part optional. Many 8x cards are 1.5 volt only, though some can tolerate 3.3V or 5V. IIRC

Re: [Emc-users] PC MB for Linux.

2017-10-17 Thread Gregg Eshelman via Emc-users
Has to be two different computers, right? For PCIe x1, grab a Quadro NVS 290 off eBay, preferably with the dual monitor breakout cable it'll require. Those come in dual VGA, dual DVI or one of each. You'll also find plenty of ATi FireMV 2250 x1 cards but the Quadro beats the pants off it and

Re: [Emc-users] MachineKit on the BeagleBone Black

2017-10-12 Thread Gregg Eshelman via Emc-users
Apple doesn't like JAVA. Apple doesn't like Flash. Whatever Apple says is old news, the rest of the computer industry is quick to marginalize or stop developing completely.Apple said "Flash is bad, mmmkay?" and Adobe just about instantly stopped updating Flash player for Android. No reason

Re: [Emc-users] MachineKit on the BeagleBone Black

2017-10-12 Thread Gregg Eshelman via Emc-users
One of the newer thin clients should be able to run LCNC very nicely. I finally got my Light Machines mill shifted out to where I can get at it to work with it. Just need to get unbusy with other things so I can see about putting DOS on a WYSE S30 to run its old software. It'll work with

[Emc-users] Easy program building Re: MachineKit on the BeagleBone Black

2017-10-12 Thread Gregg Eshelman via Emc-users
I've been looking for something simple to make a remote control app for the Toshiba TLP-7xx series digital projectors. They have an RS232C port and the commands are mostly plain text, except for whatever STX (02h) and ETH (03h) are. I assume that's shorthand for Start and End transmission and

Re: [Emc-users] MachineKit on the BeagleBone Black

2017-10-12 Thread Gregg Eshelman via Emc-users
Earlier this year I downloaded the latest release of Ubuntu and installed it on an old laptop. I wanted to change the time/date display. Does it have a dialog box where one can simply... change the time and date format? No. You have to search online or ask on a forum for the 'secret code'

Re: [Emc-users] Rack and pinion - tension or not

2017-07-31 Thread Gregg Eshelman via Emc-users
Look up the Dollo 3D printer. All the files are free to download. It includes pieces of herringbone rack and matching gears. Could have some examples printed then make molds and cast in high strength resin. Could also use the 3D files to 3D mill steel racks and gears. -- Original Message

Re: [Emc-users] How to add additional condition for enabling machine

2017-07-29 Thread Gregg Eshelman via Emc-users
You could simply connect it in series with the e-stop circuit. -- Original Message -- From: "Tomaz T." To: "emc-users@lists.sourceforge.net" Sent: 7/29/2017 10:10:31 AM Subject: [Emc-users] How to add additional condition for

Re: [Emc-users] [7x12minilathe] CNCZEUS is now Open source

2017-07-29 Thread Gregg Eshelman via Emc-users
-- Original Message -- From: "Chris Albertson" To: "Enhanced Machine Controller (EMC)" Sent: 7/28/2017 3:14:56 PM Subject: Re: [Emc-users] [7x12minilathe] CNCZEUS is now Open source Yes, still if you run Linux in single

Re: [Emc-users] [7x12minilathe] CNCZEUS is now Open source

2017-07-29 Thread Gregg Eshelman via Emc-users
Are there any free BASICs for DOS that include their own runtime compiler and can use assembly language routines? Porting BASIC programs to other versions, even to completely different platforms, isn't too difficult if the screen output is text and the program doesn't rely on some strange or

Re: [Emc-users] Progress, if I spell it right

2017-07-20 Thread Gregg Eshelman via Emc-users
On Thursday, July 20, 2017, 7:24:37 AM MDT, Gene Heskett wrote: On Thursday 20 July 2017 03:41:17 Chris Albertson wrote: > Gene, > > Try h, j, k, l keys if the arrow keys don't work.    VI was created > LONG ago back when arrow keys were a luxury item.  The old "hjkl" >

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