I suggest looking at the AMP CPC connector family. Relatively small size for the number of contacts, readily available including EBAY, gold contacts, tin contacts. I do caution against putting the motor leads in with the encoder and limit switch signals. Decades of pain and suffering is sure to follow, don't ask how I know.
----- Original Message ----- From: [email protected] To: [email protected] Sent: Thursday, December 31, 2015 4:23:31 AM Subject: Emc-users Digest, Vol 116, Issue 88 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: Spindle control (Gene Heskett) 2. Re: Rookie Question - Direct wire or connectors (andy pugh) 3. Re: Rookie Question - Direct wire or connectors (Gene Heskett) 4. Re: Waterjet at TX/RX Labs (Jason Burton) 5. Re: Waterjet at TX/RX Labs (Jon Elson) 6. Re: Rookie Question - Direct wire or connectors (Gregg Eshelman) 7. OT: one armed bandit's arm (Bertho Stultiens) ---------------------------------------------------------------------- Message: 1 Date: Wed, 30 Dec 2015 11:59:18 -0500 From: Gene Heskett <[email protected]> Subject: Re: [Emc-users] Spindle control To: [email protected] Message-ID: <[email protected]> Content-Type: Text/Plain; charset="iso-8859-1" On Wednesday 30 December 2015 11:17:45 andy pugh wrote: > On 30 December 2015 at 15:37, Gene Heskett <[email protected]> wrote: > > IIRC, this spindle-at-speed thing is only effective when its called > > for by the g-code command that needs it, such as in a G76 or G33.1. > > No, if the pin is wired (it defaults to permanently true) then the > behaviour is as-documented. > Ah, thanks for the correction Andy. > "motion.spindle-at-speed" Motion will pause until this pin is TRUE, > under the following conditions: before the first feed move after each > spindle start or speed change; before the start of every chain of > spindle-synchronized moves; and if in CSS mode, at every rapid->feed > transition. > > ie, any feed move after a spindle speed change will pause until the > spindle is at the new speed. 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: 2 Date: Wed, 30 Dec 2015 17:17:25 +0000 From: andy pugh <[email protected]> Subject: Re: [Emc-users] Rookie Question - Direct wire or connectors To: "Enhanced Machine Controller (EMC)" <[email protected]> Message-ID: <can1+yzxnqorjmv5xza1zu9sumpgnndvzamxzjxzy2mppfzk...@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 On 30 December 2015 at 16:58, Jon Elson <[email protected]> wrote: >>> http://www.ebay.com/itm/10pcs-Aviation-Plug-Male-Female-Wire-Panel-Metal-Connector-16mm-4-Pin-GX16-4-/311141053346?hash=item487173b3a2:g:aRoAAOSwY45URiPA >>> > You really want gold-plated contacts for things that run at > relatively low voltages and are not plugged in and out > frequently. I have these on my first CNC conversion, and they haven't caused any problems, but at the same time I don't like them the way I like the Neutrik connectors (and Lemo connectors). The Neutrik Speakon connectors use multi-leaf silver contacts. How do they compare in the spectrum of desirability? (I have only used them for servo motor drives, at about 300V) Another option for an A-axis is a hybrid D-sub. That lets you have the power and data in one connector, all gold-plated. http://uk.rs-online.com/web/p/solder-d-sub-connectors/5427573/ The data pins on D-sub are good for 5A, but the big power terminals can do 40A. An interesting possibility with these connectors is that they can also have pneumatic inserts, which could be handy for a clamped A axis. http://uk.rs-online.com/web/p/d-sub-connector-contacts/6659904/?origin=PSF_435844|acc -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------ Message: 3 Date: Wed, 30 Dec 2015 12:54:50 -0500 From: Gene Heskett <[email protected]> Subject: Re: [Emc-users] Rookie Question - Direct wire or connectors To: [email protected] Message-ID: <[email protected]> Content-Type: Text/Plain; charset="iso-8859-1" On Wednesday 30 December 2015 12:17:25 andy pugh wrote: > On 30 December 2015 at 16:58, Jon Elson <[email protected]> wrote: > >>> http://www.ebay.com/itm/10pcs-Aviation-Plug-Male-Female-Wire-Panel > >>>-Metal-Connector-16mm-4-Pin-GX16-4-/311141053346?hash=item487173b3a > >>>2:g:aRoAAOSwY45URiPA > > > > You really want gold-plated contacts for things that run at > > relatively low voltages and are not plugged in and out > > frequently. > > I have these on my first CNC conversion, and they haven't caused any > problems, but at the same time I don't like them the way I like the > Neutrik connectors (and Lemo connectors). > > The Neutrik Speakon connectors use multi-leaf silver contacts. How do > they compare in the spectrum of desirability? > (I have only used them for servo motor drives, at about 300V) > > Another option for an A-axis is a hybrid D-sub. That lets you have the > power and data in one connector, all gold-plated. > http://uk.rs-online.com/web/p/solder-d-sub-connectors/5427573/ > The data pins on D-sub are good for 5A, but the big power terminals > can do 40A. An interesting possibility with these connectors is that > they can also have pneumatic inserts, which could be handy for a > clamped A axis. > http://uk.rs-online.com/web/p/d-sub-connector-contacts/6659904/?origin >=PSF_435844|acc Now that could be handy than bottled beer! My teeny little 4" table only has a single brass screw to do the locking, which isn't really effective for resisting cutting forces. So I pulled it apart, milled an air groove in the base where the table sits on the base casting, and a port in the side for injecting air into, then pulled the center bolt down so it sat fairly solidly. The motor is not capable of moving it when its that tight unless I inject air into it, which both lifts the edge of the table a couple microns, and furnishes an air bearing. So I will have eventually, a lawn tractor sized battery on a smart trickle charger, feeding a relay that runs a compressor to supply that air, which I'll trigger before doing an A move, and turning it off when done. The battery is to run one of those glove pocket sized, cigarette light socket powered inflater gizmo's on a quite intermittent basis. Bench tested, it seems to work, but it has not carved any metal yet so I don't know if that will be enough clamping/braking. Pulling a vacuum I would think would lock it down pretty good, but I've made no provisions for that. 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: 4 Date: Wed, 30 Dec 2015 14:08:45 -0600 From: Jason Burton <[email protected]> Subject: Re: [Emc-users] Waterjet at TX/RX Labs To: "Enhanced Machine Controller (EMC)" <[email protected]> Message-ID: <cadakhos6zsj4btp0cx6u5-akk-uzxdebsxkiszjf8qcyad1...@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 That's what the bricks do in the clip. It takes surprisingly little clamping to make good parts on waterjet. On Dec 27, 2015 10:21 PM, "Jon Elson" <[email protected]> wrote: > On 12/27/2015 10:42 PM, Chris Kelley wrote: > > There's now one more LinuxCNC waterjet in the world. Retrofit of a c. > 2000 > > Flow Waterjet, 4' x 4' cutting area and a 40K psi intensifier. > > > > This video was from yesterday (Dec. 26): > > https://youtu.be/CEA0XdIvBQY > > > > Tonight we got the abrasive hopper working and started cutting steel. > > > WOW, really cool!! Looks like you need some hold-downs for > the workpiece. > > Jon > > > ------------------------------------------------------------------------------ > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------ Message: 5 Date: Wed, 30 Dec 2015 23:22:33 -0600 From: Jon Elson <[email protected]> Subject: Re: [Emc-users] Waterjet at TX/RX Labs To: "Enhanced Machine Controller (EMC)" <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 12/30/2015 02:08 PM, Jason Burton wrote: > That's what the bricks do in the clip. It takes surprisingly little > clamping to make good parts on waterjet. > Yes, but I could see the workpiece in the video jumping when the pierce went through. So, the bricks were not in the right place, I guess. Jon ------------------------------ Message: 6 Date: Thu, 31 Dec 2015 04:50:27 -0700 From: Gregg Eshelman <[email protected]> Subject: Re: [Emc-users] Rookie Question - Direct wire or connectors To: "Enhanced Machine Controller (EMC)" <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset=utf-8; format=flowed > On Wednesday 30 December 2015 12:17:25 andy pugh wrote: >> Another option for an A-axis is a hybrid D-sub. That lets you have the >> power and data in one connector, all gold-plated. >> http://uk.rs-online.com/web/p/solder-d-sub-connectors/5427573/ >> The data pins on D-sub are good for 5A, but the big power terminals >> can do 40A. An interesting possibility with these connectors is that >> they can also have pneumatic inserts, which could be handy for a >> clamped A axis. >> http://uk.rs-online.com/web/p/d-sub-connector-contacts/6659904/?origin >> =PSF_435844|acc 13W3 was most commonly used for monitors on SUN workstations. Interesting to know that other purposes have been found for the three large holes. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ------------------------------ Message: 7 Date: Thu, 31 Dec 2015 13:23:17 +0100 From: Bertho Stultiens <[email protected]> Subject: [Emc-users] OT: one armed bandit's arm To: "Enhanced Machine Controller (EMC)" <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset=utf-8 Hi all mechanical engineers, I am looking for mechanical drawings of a rattling arm of a one-armed-bandit, aka slot machine. The arm of those old slot machines will make that distinguished rattle sound while being pulled and then, at the end, the mechanism will reset. The arm will only reset if pulled all he way down and will latch to an intermediate position if not pulled down the entire angle. A (game) project of mine would benefit from that mechanism and instill some melancholic feelings of the past with it. Does anybody have drawings or know how it works? What is the mechanism actually called? -- Greetings Bertho (disclaimers are disclaimed) ------------------------------ ------------------------------------------------------------------------------ ------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users End of Emc-users Digest, Vol 116, Issue 88 ****************************************** ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
