Avoid those Molex connectors! Read the data sheet! Not guaranteed to work after 25 mate/demate cycles! The AMP CPC family of connectors have something of a chance of surviving, and have contact sets that can handle the loads expected.
----- Original Message ----- From: [email protected] To: [email protected] Sent: Wednesday, February 18, 2015 6:51:21 PM Subject: Emc-users Digest, Vol 106, Issue 48 Send Emc-users mailing list submissions to [email protected] To subscribe or unsubscribe via the World Wide Web, visit https://lists.sourceforge.net/lists/listinfo/emc-users or, via email, send a message with subject or body 'help' to [email protected] You can reach the person managing the list at [email protected] When replying, please edit your Subject line so it is more specific than "Re: Contents of Emc-users digest..." Today's Topics: 1. Re: PathPilot (Andreas Pettersson) 2. Re: PathPilot (Gregg Eshelman) 3. Re: PathPilot (what hardware?) (Jon Elson) 4. Re: PathPilot (Gene Heskett) 5. Re: motor connections (Gregg Eshelman) 6. Re: motor connections (Bruce Layne) 7. Re: motor connections (andy pugh) 8. Re: motor connections (Gene Heskett) ---------------------------------------------------------------------- Message: 1 Date: Thu, 19 Feb 2015 00:14:39 +0100 From: Andreas Pettersson <[email protected]> Subject: Re: [Emc-users] PathPilot To: [email protected] Message-ID: <[email protected]> Content-Type: text/plain; charset=windows-1252; format=flowed The lathe was linuxcnc from day one, it was shipped with it even. andy pugh skrev den 2015-02-19 00:03: > On 18 February 2015 at 21:56, Andrew <[email protected]> wrote: > >> The new TP wasn't so nesessary for a lathe, right? >> Looks like Tormach is going to use LinuxCNC for their mills too. >> > The Tormach web-page and the video are both clearly showing mill configs. > > I think that the lathe has been on LinuxCNC for a while. > ------------------------------ Message: 2 Date: Wed, 18 Feb 2015 18:50:21 -0700 From: Gregg Eshelman <[email protected]> Subject: Re: [Emc-users] PathPilot To: "Enhanced Machine Controller (EMC)" <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset=utf-8; format=flowed On 2/18/2015 7:07 AM, Gene Heskett wrote: > In any event, I still think you paint them (Tormach) with much too black a > brush. The company that deserves that is Makerbot. Another one is RAMBUS, where when Intel, Micron and some other companies went together to create a new computer memory standard to replace SDRAM, one member sneakily filed patents and trademarks on it all, then proceeded to file lawsuits. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com ------------------------------ Message: 3 Date: Wed, 18 Feb 2015 20:10:29 -0600 From: Jon Elson <[email protected]> Subject: Re: [Emc-users] PathPilot (what hardware?) To: "Enhanced Machine Controller (EMC)" <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 02/18/2015 07:38 AM, sam sokolik wrote: > I had/have been doing a lot of testing of the new trajectory planner of > Robs. (I didn't know or was told that he was working for Tormach - I > was upset for about 2 seconds.. :) ) I don't know how they found Rob > but wow - they sure picked the right guy to do it. Rob gave a presentation at the Machinekit meeting that was HELD at Tormach's headquarters in Wisconsin. I tried to follow, but it was drinking math from a firehose. I did get SOME idea of how he did what he did, and was VERY impressed! Jon ------------------------------ Message: 4 Date: Wed, 18 Feb 2015 21:13:39 -0500 From: Gene Heskett <[email protected]> Subject: Re: [Emc-users] PathPilot To: [email protected] Message-ID: <[email protected]> Content-Type: Text/Plain; charset="windows-1256" On Wednesday, February 18, 2015 08:50:21 PM Gregg Eshelman wrote: > On 2/18/2015 7:07 AM, Gene Heskett wrote: > > In any event, I still think you paint them (Tormach) with much too > > black a brush. > > The company that deserves that is Makerbot. Another one is RAMBUS, > where when Intel, Micron and some other companies went together to > create a new computer memory standard to replace SDRAM, one member > sneakily filed patents and trademarks on it all, then proceeded to > file lawsuits. > Quite familiar with the RAMBUS debacle, but MakerBot seems to be a new entry in the extra rectums dept. Links plz, I like to stay reasonably up to date. But if no great coverage on slashdot, I've likely slept thru it. My fault of course, but... ;-) Thanks Gregg. Cheers, Gene Heskett -- "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> ------------------------------ Message: 5 Date: Wed, 18 Feb 2015 19:15:43 -0700 From: Gregg Eshelman <[email protected]> Subject: Re: [Emc-users] motor connections To: "Enhanced Machine Controller (EMC)" <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset=utf-8; format=flowed On 2/18/2015 7:48 AM, Gene Heskett wrote: > On Wednesday, February 18, 2015 08:58:20 AM [email protected] wrote: >> For those who build your own controls, what connectors do you use to >> connect the motors to the control panel? I am talking steppers <= 3 >> amps. The store bought ones I have looked at use a DIN connector. >> >> Richard >> > I've tried several, even molex's but keeping flying swarf out of them is > tricky unless backfilled with a silicon caulk, Using acid free caulk I hope? If it smells like vinegar, it has acetic acid in it that will corrode electronics. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com ------------------------------ Message: 6 Date: Wed, 18 Feb 2015 21:32:51 -0500 From: Bruce Layne <[email protected]> Subject: Re: [Emc-users] motor connections To: "Enhanced Machine Controller (EMC)" <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset=utf-8; format=flowed > Using acid free caulk I hope? If it smells like vinegar, it has acetic > acid in it that will corrode electronics. The acetic acid in RTV silicone cures by evaporation, typically in a few hours. Afterward, it's fairly inert. I don't use it for electronics, but the only time I've seen it cause problems is when someone used it as a potting compound and sealed it up in PVC where it couldn't cure and the acid attacked some capacitors. Digi-Key sells watertight connectors that could be used on motor leads, and you might even find some electrical connectors intended for boat trailers. When I'm wiring stepper motors, I just solder the leads and heat shrink them, with a couple of increasingly longer lengths of heat shrink over the bundle for strain relief. It's cheap, low profile, snag resistant, and the electrical connections are reliable if the soldered joints aren't flexing. If they need to flex, crimped connections on stranded wire are much better. I don't need to replace stepper motors very often (hopefully never), and if I do, I can cut open the soldered connections and resolder the leads faster than I can find connectors, crimpers, etc. If I needed the soldered connections to survive coolant, I'd slide the heat shrink over uncured five minute epoxy and shrink the tubing to squeeze out the epoxy and accelerate the epoxy cure, but that's not going to be unsoldered. Repair is by replacement. Leave a little extra cable so you don't need to run a new cable if the motor is replaced. / //My favorite programming language is SOLDER.// // - Steve Ciarcia, Byte //magazine, circa 1979// // / ------------------------------ Message: 7 Date: Thu, 19 Feb 2015 02:38:34 +0000 From: andy pugh <[email protected]> Subject: Re: [Emc-users] motor connections To: "Enhanced Machine Controller (EMC)" <[email protected]> Message-ID: <can1+yzxyhijohicridyig+ro7jkxqdstypifycdcbpks3xh...@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 On 19 February 2015 at 02:32, Bruce Layne <[email protected]> wrote: > If I needed the soldered connections to survive coolant, I'd slide > the heat shrink over uncured five minute epoxy and shrink the tubing to > squeeze out the epoxy and accelerate the epoxy cure, > Why not use glue-filled heat-shrink? http://uk.rs-online.com/web/p/heat-shrink-cold-shrink-sleeves/1573824/ as a random example. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------ Message: 8 Date: Wed, 18 Feb 2015 21:51:12 -0500 From: Gene Heskett <[email protected]> Subject: Re: [Emc-users] motor connections To: [email protected] Message-ID: <[email protected]> Content-Type: Text/Plain; charset="windows-1256" On Wednesday, February 18, 2015 09:15:43 PM Gregg Eshelman wrote: > On 2/18/2015 7:48 AM, Gene Heskett wrote: > > On Wednesday, February 18, 2015 08:58:20 AM [email protected] wrote: > >> For those who build your own controls, what connectors do you use to > >> connect the motors to the control panel? I am talking steppers <= 3 > >> amps. The store bought ones I have looked at use a DIN connector. > >> > >> Richard > > > > I've tried several, even molex's but keeping flying swarf out of them > > is tricky unless backfilled with a silicon caulk, > > Using acid free caulk I hope? If it smells like vinegar, it has acetic > acid in it that will corrode electronics. :) BTDT. A Well known caution Gregg. What ever I used at the time had no vinegar stink to it. But I didn't use it for long because the cable I was using was as stiff as a piece of 1/4" tubing, and kept stressing the solder joints buried in the stuff, so I changed it all to the 4 pin screw together plug, and half a small roll of Suzan Clarks Star-quad cable. That combo has worked for nearly a decade now. Cheers Gregg, Gene Heskett -- "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> ------------------------------ ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=190641631&iu=/4140/ostg.clktrk ------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users End of Emc-users Digest, Vol 106, Issue 48 ****************************************** ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=190641631&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
