Logan STILL provides factory parts. (815) 943-6755. Had to buy a cluster gear for my 1949 model Logan lathe.... About $210 and wait a week. I am totally impressed.
----- Original Message ----- From: emc-users-requ...@lists.sourceforge.net To: emc-users@lists.sourceforge.net Sent: Friday, September 2, 2016 7:52:23 PM Subject: Emc-users Digest, Vol 125, Issue 10 Send Emc-users mailing list submissions to emc-users@lists.sourceforge.net 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 emc-users-requ...@lists.sourceforge.net You can reach the person managing the list at emc-users-ow...@lists.sourceforge.net When replying, please edit your Subject line so it is more specific than "Re: Contents of Emc-users digest..." Today's Topics: 1. Re: What does "CNC" really mean? (Gene Heskett) 2. Re: summing Z axes? (Ken Johnson) 3. Re: Upset old fart (rayj) 4. Re: What does "CNC" really mean? (Jon Elson) 5. Re: What does "CNC" really mean? (Jon Elson) 6. Re: Nice old iron (Jon Elson) 7. Suitability question (Gene Heskett) ---------------------------------------------------------------------- Message: 1 Date: Fri, 2 Sep 2016 17:57:32 -0400 From: Gene Heskett <ghesk...@shentel.net> Subject: Re: [Emc-users] What does "CNC" really mean? To: emc-users@lists.sourceforge.net Message-ID: <201609021757.32359.ghesk...@shentel.net> Content-Type: Text/Plain; charset="iso-8859-1" On Friday 02 September 2016 13:42:09 Dave Cole wrote: > And what about hanging chads?? ;-) > Chuckle, there is a law, if someone mentions chad, somebody else has to ask if its hanging. :) 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: Sat, 3 Sep 2016 08:05:13 +1000 From: Ken Johnson <bats...@gmail.com> Subject: Re: [Emc-users] summing Z axes? To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Message-ID: <CAPm=en8qsskafel_rjsgi+3nvhngbm1psurqubwimgbaxur...@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 Thanks for your help Andy and Gene, I will investigate sum2 and see what I can figure out. Ken. On Fri, Sep 2, 2016 at 6:44 PM, Gene Heskett <ghesk...@shentel.net> wrote: > On Friday 02 September 2016 00:56:13 Ken Johnson wrote: > >> Is it possible to sum 2 Z-axes in linux-cnc? Reason for the question >> is my mill has both a knee and quill, and I would like to put a dro on >> both and have have linuxcnc sum them so the reading on-sceen >> represents the distance between tool and job no matter which of the 2 >> I (or later, the software) move. >> >> I would appreciate it if you could give any answers in baby steps as I >> am very new to this and still trying to find my way in the software. >> >> Thanks, Ken. > > See 'man 9 sum2', and feed its output to the on-screen dro. And you will > learn a bit about the .hal file while "hooking" it up. > > 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> > > ------------------------------------------------------------------------------ > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------ Message: 3 Date: Fri, 2 Sep 2016 19:54:41 -0500 From: rayj <raymo...@frontiernet.net> Subject: Re: [Emc-users] Upset old fart To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Message-ID: <a8928916-ccec-3379-a7c2-7aaa3c3f5...@frontiernet.net> Content-Type: text/plain; charset=windows-1252; format=flowed On the topic of resources for old machines, does anyone have any good resources for Logan tools. I have a little Logan shaper I need a part for. Any suggestions would be appreciated. TIA. Raymond Julian Kettle River, MN The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest are the traits of success. And while men admire the quality of the first they love the produce of the second. -John Steinbeck, novelist, Nobel laureate (1902-1968) On 09/02/2016 10:32 AM, Jon Elson wrote: > On 09/02/2016 08:21 AM, Gene Heskett wrote: >> On Friday 02 September 2016 01:32:55 Jon Elson wrote: >> But, best to check with John >> Knox on the Sheldon group, he is from the family that owned >> Sheldon and worked for a number of years in the factory. He >> has the remaining docs on everything Sheldon built, and can >> tell you what it was SUPPOSED to be made of. >> >> Jon >> URL? >> >> > Sorry, I thought I'd already given that to you - > sheldonla...@yahoogroups.com > > A fantastic resource even without John Knox, but it is > almost like having the factory still open with his > contributions. I had some missing pieces in my apron when I > dug in there, and he gave me the part numbers and current > sources! Totally awesome! > > As for way wipers, there is a guy on there who is making > them for the smaller lathes. I have the material to make > them for the big lathes. If you have the wiper cover > pieces, cutting your own felt is not a big deal. > > Jon > > ------------------------------------------------------------------------------ > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------ Message: 4 Date: Fri, 02 Sep 2016 20:32:17 -0500 From: Jon Elson <el...@pico-systems.com> Subject: Re: [Emc-users] What does "CNC" really mean? To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Message-ID: <57ca2821.9070...@pico-systems.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 09/02/2016 12:13 PM, John Kasunich wrote: > > On Fri, Sep 2, 2016, at 07:29 AM, Bruce Layne wrote: >> >> On 08/31/2016 10:22 PM, Gregg Eshelman wrote: >>> Surprising that just for the fun of doing it, someone hasn't built a >>> punched tape reader for a 3D printer. >> >> Have you SEEN 10MB of paper tape?!? :-o >> >> The bits on paper tape are about .1" in diameter. That's a lot of paper >> tape. > 15.8 miles of paper actually. > > The spool would be over 35 inches in diameter and weigh 115 lbs. > > Wow! You actually calculated it! But, of course, the stuff comes on little rolls about 10" diameter, so unless you wanted to splice hundred of rolls together, you couldn't get it in a single piece. Hmm, let's see, a teletype would take 2 weeks to punch that (little known constant, 1 million seconds is very close to 2 weeks - In the VAX operating system, there was some system variable that was shown in units of uFortnights, being very close to one second). Jon ------------------------------ Message: 5 Date: Fri, 02 Sep 2016 20:33:48 -0500 From: Jon Elson <el...@pico-systems.com> Subject: Re: [Emc-users] What does "CNC" really mean? To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Message-ID: <57ca287c.9080...@pico-systems.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 09/02/2016 12:34 PM, Ken Strauss wrote: > Is that using paper or Mylar tape? Did you account for the weight reduction > due to chad removed? > > How could he, unless he knew the data? Lots of ones makes the tape lighter, lots of zeroes keeps it heavy. Jon ------------------------------ Message: 6 Date: Fri, 02 Sep 2016 20:36:51 -0500 From: Jon Elson <el...@pico-systems.com> Subject: Re: [Emc-users] Nice old iron To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Message-ID: <57ca2933.8020...@pico-systems.com> Content-Type: text/plain; charset=UTF-8; format=flowed On 09/02/2016 03:50 PM, andy pugh wrote: > http://www.ebay.co.uk/itm/Various-machines-untested-/282157105171?hash=item41b1dfc013:g:md0AAOSwRGlXqFQ2 > > > You would need a big truck for all 11 machines. > > There is something about the Ikega I like, but my garage is full. No, > really, it is. > Ugh, quite a rusty bunch of machines. Jon ------------------------------ Message: 7 Date: Fri, 2 Sep 2016 22:52:13 -0400 From: Gene Heskett <ghesk...@shentel.net> Subject: [Emc-users] Suitability question To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Message-ID: <201609022252.13616.ghesk...@shentel.net> Content-Type: text/plain; charset="us-ascii" Greetings everybody; Working on the drive shaft for the x screw in this Sheldon. 1. I have 1/2" A2 rod, IOW 12.7m's in diameter. 2. I've already cut 50 tpi threads, both straight and tapered, on the inner end. The tapered section will have 6 slots cut into it by EDM, and a tapered thread nut will then put the squeeze on the 6 fingers formed by the cuts, with the squeeze being the grip on the end of the screw. For both thrust and rotational forces. 3. I'd like to use a 12mm bore timing pulley on the outer end, and another 50 tpi nut to adjust the load/preload on the roller bearing thrust washers I am installing on the OEM crossfeed handle bearing screw-in that exists now but with a counterbore in the outside end, probably covered with a felt swarf washer. I have taken some pix, but they are still in the camera. But, 50 tpi's thread depth calculations tell me the bottom of the threads valley will only be 10.95mm in diameter. So in order to get the nut to the full depth threads behind what should be a fairly smooth 12mm shaft to fit the stock 12mm pulley bore, I am going to have to cut a partial thread the full length of the shaft just to get the nut to the full depth threads. Obviously I'm not excited about that. So, should I do that, or go ahead and turn the shaft on down to 10mm's and order pulleys accordingly? I have some fresh, green, threadlocker to enhance the grip in any event. And I have to chuckle at the vendor who sold me the 1500mm long 2505 screw kit. The end of the screw is 10mm's, and the flexible coupling to hook it to a motor? Its 6mm's on the motor end. But my motor has a 15mm double flatted shaft. No common sense west of the big pond... That too will be belt driven. And I'm scanning ebays offerings for a pair of rubber bellows type boots to cover this screw with. Just haven't found what I think I need yet. The *667 hall sensors, and a decent motor mount (assembled bass ackwards of course) fell out of the mailbox today, so some of it is coming together, faster than I can make use of it. But its progress I try to tell me. 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> ------------------------------ ------------------------------------------------------------------------------ ------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users End of Emc-users Digest, Vol 125, Issue 10 ****************************************** ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
