Re: [Emc-users] Hardware Question - Mesa
The 5i25 + 7i77 is as close to dead simple easy as my limited knowledge and ability could imagine. All of my problems were user error. The combo-pak comes with firmwares pre-loaded. The only feature I that would have helped was better A/D input resolution and accuracy, but that is a rather odd need. The IRC chat is spectacular for getting these going. JThornton has a web-page to help and one of the devs at Mesa is regularly available. I have been super happy with mine. Mark Center On Thu, Oct 25, 2012 at 5:51 PM, andy pugh bodge...@gmail.com wrote: On 25 October 2012 23:43, Gandjpappy gandjpa...@aol.com wrote: My question is on the Mesa boards. Don't forget to look at the Pico solutions too. http://www.pico-systems.com/motion.html My mill uses servos so it looks like a 5i25 and 7i77 would work but I read where someone was using a 5i20. Will they both do the job and if so what would be the advantage of one or the other? The 5i20 / 5i21 / 5i23 boards have more pins, so you can connect more daughter boards. They cost a bit more, and tend to be not as easy to wire. It's much easier to switch between firmwares and configs with those boards, as the firmware is reloaded every time LinuxCNC starts up. I think there are some firmwares that can't run on the *i25 boards. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- The Windows 8 Center In partnership with Sourceforge Your idea - your app - 30 days. Get started! http://windows8center.sourceforge.net/ what-html-developers-need-to-know-about-coding-windows-8-metro-style-apps/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] pncconf w/ 5i25 and single 7i77
I have been lurking on the list for about a month and had the same problem. But, I also needed to change the W2 jumper on my 5I25 to up which is not the default setting, as per JT's instructions, http://gnipsel.com/linuxcnc/configs/index.html. Mark -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] geographic map
http://www.imts.com/ I went to the one in 2002. It happens on even years at McCormick Plaza in Chicago. 2,000,000 squ. ft of mostly machine tools. I spent two full days and still didn't see everything. It is *the* Gran-daddy convention for machinists. Odd years are WesTec in Los Angeles. Mark On Sun, Aug 5, 2012 at 7:27 PM, jeremy youngs jcyoung...@gmail.com wrote: yesterday i checked the map as it became broken when we were hacked sometime before i joined. Im still kinda looking for someone in the upstate new york area to meet with to bounce ideas. also whats this imts? and where is it? I als havent been able to get on irc for abotu six months it says it times out any thoughts? I hope one day to cure my ignorance by recieving answered questions or finding the answers myself and maybe provide some one day :) thanx -- jeremy youngs -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] [OT] I wonder what lathe this is modelled on?
My guess would be a Colchester, fine old British iron. I have a Monarch 18-CBB that looks similar without a tray top. http://bbs.homeshopmachinist.net/threads/40292-Identify-this-Colchester-Lathe On Wed, Jul 25, 2012 at 3:09 PM, Gene Heskett ghesk...@wdtv.com wrote: On Wednesday 25 July 2012 15:53:49 andy pugh did opine: http://www.modvid.com.au/assets/images/anders_bike_shop03.jpg Looks like a nice 0.07 centre-height lathe. The full set is at : http://www.modvid.com.au/html/body_anders_bike_shop_details.html All I can say is WOW! The detail is great. I'll have to admit that amongst all the old Triumphs Harley's Beemer's, I half expected to see a prewar Indian Chief with its 4 cylinder inline engine, and possibly even an Ariel Square 4. But even in our world of today, Jay Leno probably owns 50% of the survivors in 2012. Very few left IOW. I rode a borrowed Chief in a veterans day parade once, with a square 4 in front of me. I have never again seen both in the same year. The Chief had a suicide clutch and was hell to control at sub idling speeds, but was also very quiet. You could hear the Ariels mechanical noises a block away. I was a bit green at biking then, back in the middle 50's, and didn't realize till 25 years later that that ride could and should have been in the history books, but it was just part of the glitz for a veterans day parade then. 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) My web page: http://coyoteden.dyndns-free.com:85/gene is up! ... I want to perform cranial activities with Tuesday Weld!! -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] The screw works!
I use 0 to 5 degree rake and 2 to 3 degrees absolute flank clearance. The compound angle, viewed orthogonal to side view, is about 10 to 15 degrees. The spiral effect (lead angle) causes entering side to be more acute than exit. Nothing is really terribly critical as long as a cutting flank does not rub against either side of the thread flank. Ridiculously acute appearing tool angles will cause less problems than angles that would appear correct for turning, they just wear faster. You might only be able to thread ten or fifteen parts before you need to resharpen. The lead angle is a function of lead, diameter, and whether internal/external. I have a parting tool that I have threaded several times on a manual South Bend Big 10 (and now a Monarch 10EE) On Mon, Jul 23, 2012 at 7:52 AM, Gene Heskett ghesk...@wdtv.com wrote: To Andy Steve; I made another of the dual thread screws yesterday, and can report that it seems to work well. However it seems that I must have a flexibility problem in using a cutoff knife sharpened with a 60 degree V and a slight (10 degree?) hook though. Or it doesn't have sufficient 'heel' clearance and is being pushed until there is a supporting thread on both sides of the tooth. The entrance thread, even though the starting point of the fwd cutting stroke is well off the end of the workpiece, I am getting a 'first thread is bigger' effect, about 15 thou bigger TBE! This was very obvious when I cut the 10-32 thread, slightly less so when I cut the 7mmx1.00, but required I trim about 2/3rds of the first thread off with a dremel diamond wheel. Two things became obvious, one being that I have no way to actually measure the pitch diameter of a thread in progress, and because of the fat end thread syndrome, it doesn't seem practical to try and use the matching threading die as an am I done test gage. That, and the die I have seems to have several thou of thread clearance, so a hole tapped with the tap, is a pretty sloppy fit on a screw made by the matching die. I like my threads to fit better than that. How much of a heel clearance angle do you folks use when sharpening a single tooth, and how much 'hook' on the top face? I want to make a jig for this as setting up the rotary table on the mill, and tipping it fwd to get the heel clearance angle seems to work but is a setup PIMA due to the tables motor hitting the heads gearbox. 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) My web page: http://coyoteden.dyndns-free.com:85/gene is up! Civilization is the limitless multiplication of unnecessary necessities. -- Mark Twain -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] long set screw
I had a job making hex adjusters for camshaft timing pulley's for Cloyes gear. I needed to make about 2000 a week. First, I tried broaching. It was labor intensive and expensive because broaches kept breaking. I devised a roto-broaching tool. An axial hex cutter mounted in bearings angled about 5 degree from centerline. I hated that job. It sucked all my fun for a couple of years making less than minimum wage. It was an education. Mark Center On Mon, Jul 16, 2012 at 12:28 PM, Jon Elson el...@pico-systems.com wrote: Gene Heskett wrote: All of which proves that without us makers, the rest of the world will descend into the stone age in 200 years. They may anyway, but thats another thread in history's endless loop. :( 200 years? Come on, it wouldn't take TWO years for everything to come to a stop! Jon -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Plasma
Vibration consideration and rigidity are usually more limiting factors in machining than HP. For example, a standard Bridgeport style mill has a 1.5 hp motor. Most formulas give ambitious speed/feed/DOC vs hp based on perfect stability. The forces required to cut are small compared to the forces ensure smooth motion (up milling vs. climb milling) Consider a design approach based on experience (look at what someone has done that works) rather than deterministic choice (formulas). Mark Center On Mon, Jul 2, 2012 at 2:16 PM, Viesturs Lācis viesturs.la...@gmail.com wrote: 2012/7/2 Daniel Rogge dro...@tormach.com: I was testing in Aluminum, but I think that for a given spindle HP your results would be similar in other materials. If you're on an open loop machine it's preferable to size the motors such that you stall the spindle before stalling an axis motor because it's often an easier failure mode to detect. For X and Y I am looking only at servos. For speed, precision and reliability. For Z axis and for rotary joints I probably will have steppers. If you're only using small end mills, then the max axis force required is simply just a bit more than the force required to snap the end mill. I would think that a 6mm end mill wouldn't be capable of delivering 1.5 HP to a workpiece. So that means that machine would get all the 6 mm or even 8 end mill is capable of? That sound nice! -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
