Re: [Emc-users] ZAY7045FG Retrofit CNC

On 08.02.16 10:16, Marshland Engineering wrote: > I'm busy retrofitting a ZAY7045 mill with CNC control. Is anyone interested in > the progress with photos ? You bet. Will it be the head travel which becomes Z, with quill locked? I had thought of buying an RF45 and converting it, but don't see th

Re: [Emc-users] ZAY7045FG Retrofit CNC

It's always good to see photos as a machine is converted to CNC. John Dammeyer > -Original Message- > From: Marshland Engineering [mailto:marshl...@marshland.co.nz] > Sent: February-07-16 1:17 PM > To: emc-users@lists.sourceforge.net > Subject: [Emc-users] ZAY7045FG Retrofit CNC > > > I'

Re: [Emc-users] pncconf problem

I think that I found the problem. I believe that in inuxcnc /src /emc

Re: [Emc-users] Eagle mill retro fit

John Thornton wrote: > I'm not sure how close the 1400 is to my 1100M but in the right > cabinet is there 3 boards with a connector on top and one on the > bottom of each board? > > http://gnipsel.com/images/bp-knee-mill/bpel01.jpg > > That's all that's left in my cabinet is the drives and power

Re: [Emc-users] Any idea how they machine these?

On 7 Feb 2016, at 22:04, Ken Strauss wrote: > There was an article in Model Engineer Magazine (British publication) on > doing it at home. See Volume 176, Issue 4017, page 464. I have a scan of the > article but it is too large to post. > >> -Original Message- >> From: John Kasunich [mai

Re: [Emc-users] Any idea how they machine these?

On 02/07/2016 02:15 PM, andy pugh wrote: > https://en.wikipedia.org/wiki/Welin_breech_block#/media/File:Sailor_looking_into_the_breech_of_16_inch_gun_aboard_USS_Alabama_(BB-60).jpg > > I suspect an extremely specialised machine for the internal version. > I restored a 75mm Krupp that had a similar

Re: [Emc-users] Any idea how they machine these?

Andy, Now I see what you are asking. It would be educational to look at the part to see what the tooling marks show. You may be able to identify a pattern to know how they were cut. On Sun, Feb 7, 2016 at 3:18 PM, andy pugh wrote: > Maybe I should have been more explicit about the question... >

Re: [Emc-users] Any idea how they machine these?

In a shaper where the part being machined rotates. If you look closely there is a small relief slot at the end of each thread. -- Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM +

Re: [Emc-users] Any idea how they machine these?

There was an article in Model Engineer Magazine (British publication) on doing it at home. See Volume 176, Issue 4017, page 464. I have a scan of the article but it is too large to post. > -Original Message- > From: John Kasunich [mailto:jmkasun...@fastmail.fm] > Sent: Sunday, February 07,

Re: [Emc-users] pncconf problem

I forgot to say I am running linuxCNC version 2.7.3. I am trying to set up a config to use a 7i43 board with pncconf. I tried to set up two home and limit switches (both-home-x) and (both-home-z). However, when I look at the hal file I get (both-home-y) and (both-home-a). From Hal file: # exter

Re: [Emc-users] Any idea how they machine these?

A post on this page: http://yarchive.net/metal/artillery_thread.html says: In full size practice the male and female threads are SCREWCUT (not Milled) on specially adapted, relieving lathes with an interrupted indexing motion. This usually takes the form of a special, heavy duty, "geneva" type m

Re: [Emc-users] Any idea how they machine these?

On Sun, Feb 7, 2016, at 04:18 PM, andy pugh wrote: > Maybe I should have been more explicit about the question... > > How do you machine an internal part-thread that ends hard against a shoulder? > Very carefully :-) This pic http://www.eugeneleeslover.com/PAGE_56_Figure_5B10_C.JPG shows that

Re: [Emc-users] ZAY7045FG Retrofit CNC

Sweet looks very familiar. I kinda miss my RF45 retrofit it was my first one ;) Good luck with it man! Pete On Sun, Feb 7, 2016 at 4:16 PM, Marshland Engineering < marshl...@marshland.co.nz> wrote: > I'm busy retrofitting a ZAY7045 mill with CNC control. Is anyone > interested in > the progre

Re: [Emc-users] Any idea how they machine these?

When in college at TAMU, the mech engr machine shop had some big equipment. One lathe would swing about 6' dia, and 20'+ length in the bed plus head stock. That was the largest engine lathe I have seen. I never saw them use it, but it was kept in usable shape and yes, they kept some standard tool

Re: [Emc-users] Any idea how they machine these?

Considering that it was the 1940s, I'm not sure how common thread-milling was. Plenty of room inside that breech - maybe a cam-operated "rapid retract" single point threading tool? Found this page, doesn't explain how they cut the threads but does elaborate a bit on other construction features.

Re: [Emc-users] Any idea how they machine these?

Super sized machines are still made. IMTS (in Chicago Sept 12-16 this year) has had giant lathes in the past. I was amazed at one that had what looked to be a railroad car axle with wheels which appeared to be turned from a single billet of steel (that must have been enormous!). By the way, IM

Re: [Emc-users] Any idea how they machine these?

Maybe I should have been more explicit about the question... How do you machine an internal part-thread that ends hard against a shoulder? -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -

[Emc-users] ZAY7045FG Retrofit CNC

I'm busy retrofitting a ZAY7045 mill with CNC control. Is anyone interested in the progress with photos ? http://s93480190.onlinehome.us/zay/zay7045fg.bmp Cheers Wallace -- Site24x7 APM Insight: Get Deep Visibility int

Re: [Emc-users] Any idea how they machine these?

I have a friend who is a mechanical engineer at the Naval Ordnance Station in Louisville. I inquired about the machining on these big naval guns, and he told me that most of the drawings are from the 1940s, and in general, the machining is manual and conventional, although the lathes and othe

Re: [Emc-users] Any idea how they machine these?

Andy, I saw a 60 taper machine in storage here in Wichita. It was from an arsenal. The machine was huge. I would think it could cut the threads with a thread mill or single point tooling with the size of the adapter. I had never imagined an adapter that size. The attached picture shows a comparison

[Emc-users] Any idea how they machine these?

https://en.wikipedia.org/wiki/Welin_breech_block#/media/File:Sailor_looking_into_the_breech_of_16_inch_gun_aboard_USS_Alabama_(BB-60).jpg I suspect an extremely specialised machine for the internal version. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto --

Re: [Emc-users] Eagle mill retro fit

Hi Dan! On 07.02.2016 18:06, Dan Bloomquist wrote: > [...] > > > What is different is that it their mill positions with motor encoders. > My mill has tachs on the motors and glass scales. I haven't put a scope > on the glass but judging from the wires, they are quadrature. I can't > imagine h

Re: [Emc-users] Eagle mill retro fit

I'm not sure how close the 1400 is to my 1100M but in the right cabinet is there 3 boards with a connector on top and one on the bottom of each board? http://gnipsel.com/images/bp-knee-mill/bpel01.jpg That's all that's left in my cabinet is the drives and power supply. JT On 2/7/2016 11:06 AM

Re: [Emc-users] MPG Handwheel for use with 7i73

On Sunday 07 February 2016 09:55:17 r...@superiorroll.com wrote: > We do need the whole pendant, I found these same ones on eBay, with a > 2-3 week delivery. The ones we normally buy are 3-4 weeks, and cost > $150 plus shipping. > > We broke the stems off of the selector switches on one of the pen

[Emc-users] Eagle mill retro fit

Hi, I'm pretty new to all this, I knew about nothing a year ago, then my son needed a plasma table, and being the computer guy, we built it in my shop. BTW, he started up his business about 4 months ago and has done some amazing work so far. In March I found

Re: [Emc-users] MPG Handwheel for use with 7i73

fwiw you could hre some needy nerd to do it for you then you'd have a needy nerd resource for next problem tomp ( im in thailand where everybody works even if its really dumb and redundant like ticket takers ticket checkers ticket passer-backers and secondary ticket checkers :-) On 02/07/2016 10:

Re: [Emc-users] MPG Handwheel for use with 7i73

A lot of vendors twist verbiage about what is what. If it is TTL then it should be singled ended - ala - the voltage output will vary between something less than .7 volts as a low value and something above 3.7 volts as a high level. The A not will simply be the inversion of the A signal, but the

[Emc-users] pncconf problem

I am trying to set up a config to use a 7i43 board with pncconf. I tried to set up two home and limit switches (both-home-x) and (both-home-z). However, when I look at the hal file I get (both-home-y) and (both-home-a). From Hal file: # external input signals # --- BOTH-HOME-Y --- net both-home

Re: [Emc-users] MPG Handwheel for use with 7i73

We do need the whole pendant, I found these same ones on eBay, with a 2-3 week delivery. The ones we normally buy are 3-4 weeks, and cost $150 plus shipping. We broke the stems off of the selector switches on one of the pendants on one of our turning centers, so I stole the unit off of our mach

Re: [Emc-users] MPG Handwheel for use with 7i73

http://www.amazon.com/Rotary-Manual-Generator-Handwheel-100PPR/dp/B00ZO6UNFM/ref=sr_1_7?ie=UTF8&qid=1454849140&sr=8-7&keywords=pulse+generator+cnc On 2/7/2016 6:28 AM, r...@superiorroll.com wrote: > Just wondering if anyone has had a chance to look at this, all the units we > already have in serv

Re: [Emc-users] MPG Handwheel for use with 7i73

Do you just need the MPG or a pendant? I thought AliExpress was for when you didn't need something in a hurry... JT On 2/7/2016 6:28 AM, r...@superiorroll.com wrote: > Just wondering if anyone has had a chance to look at this, all the units we > already have in service have a "Line Driver" type

Re: [Emc-users] MPG Handwheel for use with 7i73

Just wondering if anyone has had a chance to look at this, all the units we already have in service have a "Line Driver" type output, this says "TTL", but they are out of stock of the ones we use, and I need one pretty quickly, Thanks Rick Original Message Subject: MPG H