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becksmachine
11-22-2015, 06:30 PM
As requested/promised in the high bay shop light thread, I dug up some photos of the of the process for those sharp eyed folks who saw the apron for this lathe sitting on the bench.

Pacemakers are new territory for me, most of my previous experience along these lines has been with Lodge & Shipley products. Only because of my previous experience, I would have preferred to have something that I was familiar with, but L&S didn't make anything in this size, at least not that I was able to find, so a Pacemaker it is!!

It certainly is another level of complexity, the Zip Shift feature that allows pre-selection and shifting of spindle speeds in the power shift headstock from the apron, mechanical rapid traverse for both the carriage and cross slide, and 3 lubrication pumps, 2 powered and 1 manual, that pump oil from the apron to the various points in the apron and to the longitudinal and cross slide ways. These pumps were the main focus of the dis-assembly as it has been my previous experience that coolant finds it's way into the apron and sludge is formed that then disables these pumps.

Especially on a lathe this size, this can make it an extremely arduous task to crank the carriage and/or cross slide into position. This is less of an issue on a lathe that has rapids, but that just makes it easier to ignore the lack of lubrication.

This is just about the lightest version of this model, if you can call a 35,000# lathe light. It is a 32" swing lathe that has been "raised in the sand" to allow a swing of 46" with a center distance of 14'.

Dave

http://i1042.photobucket.com/albums/b422/becksmachine/Pacemaker/20237.jpg

http://i1042.photobucket.com/albums/b422/becksmachine/Pacemaker/20237%20005.jpg

http://i1042.photobucket.com/albums/b422/becksmachine/Pacemaker/20237%20003.jpg

http://i1042.photobucket.com/albums/b422/becksmachine/Pacemaker/20237%20002.jpg

becksmachine
11-22-2015, 06:43 PM
Photos of dis-assembled apron.

The accumulation of sludge was not as severe as I had feared, 1/4" - 1/2" deep in the bottom of the apron. Still enough to possibly interfere with proper function of the lubrication system and some metering orfices plugged.

Dave

http://i1042.photobucket.com/albums/b422/becksmachine/Pacemaker/IMG_2709.jpg

http://i1042.photobucket.com/albums/b422/becksmachine/Pacemaker/IMG_2698.jpg

http://i1042.photobucket.com/albums/b422/becksmachine/Pacemaker/IMG_2717.jpg

http://i1042.photobucket.com/albums/b422/becksmachine/Pacemaker/IMG_2700.jpg

flylo
11-22-2015, 07:04 PM
On my tiny Pacemaker the swing is over the carriage not the ways so my 14x56 swings 22" over the ways. I like her big sister even though she doesn't have the awesome shifter mine has :rolleyes:

Michael Edwards
11-22-2015, 08:14 PM
That's an amazing number of parts in that apron. I'm sure it will be nice knowing that everything in there is clean and in good working order.

What a nice lathe, easily qualifies as tool porn.


ME

10KPete
11-22-2015, 08:28 PM
Oh that's tool porn all right! I couldn't swing the hand wheel off the apron in my 10K! Geez that's beautiful. Back in my dark
ages I had the opportunity to operate a 36" x 12' old Monarch. Haven't touched anything near that big since. Maybe I should
visit you Dave just so I can touch it!!:rolleyes: You should post more pics of your big stuff. I know I would enjoy it.

Pete

becksmachine
11-22-2015, 08:52 PM
On my tiny Pacemaker the swing is over the carriage not the ways so my 14x56 swings 22" over the ways. I like her big sister even though she doesn't have the awesome shifter mine has :rolleyes:

Yes, I would agree Flylo, your Pacemaker has a much more interesting shifter!! ;)

So that brings up an interesting point, maybe I am mis-interpreting those numbers cast into the headstock. When you say "over the carriage" I assume you mean the cross slide? I will have to measure what the swing would be over the cross slide. Were all Pacemakers listed that way?

Dave

becksmachine
11-22-2015, 08:58 PM
Oh that's tool porn all right! I couldn't swing the hand wheel off the apron in my 10K! Geez that's beautiful. Back in my dark
ages I had the opportunity to operate a 36" x 12' old Monarch. Haven't touched anything near that big since. Maybe I should
visit you Dave just so I can touch it!!:rolleyes: You should post more pics of your big stuff. I know I would enjoy it.

Pete

Pete, you just come on over, I'll supply the rags and you can touch it all over all you want. Hell, I will even supply the beer!

:)

Seriously, if anyone happens to be in the area, I maintain a fully stocked refreshment center, complete with refrigerator and both healthy and salted peanuts. ;)

Dave

wierdscience
11-22-2015, 09:32 PM
Holy smokes,that apron has got more parts than most complete lathes :D That's gonna be a fine machine when your done,I've always considered Pacemakers to be the pinnacle of lathe design IMO.

LibbyHillBrewer
11-22-2015, 10:53 PM
As requested/promised in the high bay shop light thread, I dug up some photos of the of the process for those sharp eyed folks who saw the apron for this lathe sitting on the bench.

Pacemakers are new territory for me, most of my previous experience along these lines has been with Lodge & Shipley products. Only because of my previous experience, I would have preferred to have something that I was familiar with, but L&S didn't make anything in this size, at least not that I was able to find, so a Pacemaker it is!!

It certainly is another level of complexity, the Zip Shift feature that allows pre-selection and shifting of spindle speeds in the power shift headstock from the apron, mechanical rapid traverse for both the carriage and cross slide, and 3 lubrication pumps, 2 powered and 1 manual, that pump oil from the apron to the various points in the apron and to the longitudinal and cross slide ways. These pumps were the main focus of the dis-assembly as it has been my previous experience that coolant finds it's way into the apron and sludge is formed that then disables these pumps.

Especially on a lathe this size, this can make it an extremely arduous task to crank the carriage and/or cross slide into position. This is less of an issue on a lathe that has rapids, but that just makes it easier to ignore the lack of lubrication.

This is just about the lightest version of this model, if you can call a 35,000# lathe light. It is a 32" swing lathe that has been "raised in the sand" to allow a swing of 46" with a center distance of 14'.

Dave

http://i1042.photobucket.com/albums/b422/becksmachine/Pacemaker/20237.jpg

http://i1042.photobucket.com/albums/b422/becksmachine/Pacemaker/20237%20005.jpg

http://i1042.photobucket.com/albums/b422/becksmachine/Pacemaker/20237%20003.jpg

http://i1042.photobucket.com/albums/b422/becksmachine/Pacemaker/20237%20002.jpg
Let me guess...you bought this one to make watch parts on, right?[emoji1]

Sent from my SAMSUNG-SM-G900A using Tapatalk

Rich Carlstedt
11-23-2015, 12:29 AM
Dave
We had a couple of Americans like that back in the 80's in out shop
great machines. Had a electrical problem on the carriage and the machinist said we needed a new drum switch.

I ordered it from American ( LaBlonde) and got a ordinary AB drum switch that they had modified by drilling a roll pin hole.
Cost was over 300 when the AB switch could be purchased for 60 bucks . I called them on it and they said they had to pull a print to find the modification, and that cost $$

Cheers
Rich

flylo
11-23-2015, 01:40 AM
Yes, I would agree Flylo, your Pacemaker has a much more interesting shifter!! ;)

So that brings up an interesting point, maybe I am mis-interpreting those numbers cast into the headstock. When you say "over the carriage" I assume you mean the cross slide? I will have to measure what the swing would be over the cross slide. Were all Pacemakers listed that way?

Dave

All that I've seen are over the cross slide yes.

J Tiers
11-23-2015, 02:05 AM
Usually there is a swing over the ways, which is the biggest. Then over the carriage, meaning the wings, which often is the same number.

Over the crosslide would always be smaller, but for anything intended for long shafts or rolls would be the only number worth knowing. Makes sense to give that number for a machine which is as long as yours, nobody will be as interested in how big faceplate work could be on a shaft and roll lathe.

flylo
11-23-2015, 02:31 AM
I've found the alot of large lathe makers measured over the cross slide & most all smalll lathe makers measure over the ways.

Glug
11-23-2015, 09:28 AM
I was admiring how much more massive that tailstock is than my lathe, but then I had to admit the same could be said for the compound. And probably even the steady.

boslab
11-23-2015, 10:06 AM
I would love to see that thing taking a cut when it's running, I mean it's just meant for metal removal on a biblical scale, I just looked at my little toy and now feel sad, I think I'm going to paint it in stripes, the Mrs says stripes make women look bigger, wonder if it works for lathes?, well makes their ass bigger I've just been corrected,
Mark

RichR
11-23-2015, 10:50 AM
... I think I'm going to paint it in stripes, the Mrs says stripes make women look bigger, wonder if it works for lathes?, well makes their ass bigger I've just been corrected,
Mark

I want a big ass lathe, so I'm going to try that. Which part of the lathe is the ass?

Toolguy
11-23-2015, 11:01 AM
Probably somewhere near the tailstock.:)

mattthemuppet
11-23-2015, 08:03 PM
so this is not the kind of lathe you can put in the back of your truck/ wagon then?

Machine tools that size give me the willies, the consequences of screwing up in terms of health and body are rather severe. Looking forward to the rest of the refurb! (especially now that we can see it so well, he he he)

flylo
11-23-2015, 09:19 PM
If you have a real trailer, no problem.

Spandau
11-24-2015, 01:34 AM
The lathe in the OP makes me feel inadequate and iron deficient.

becksmachine
06-04-2016, 02:34 AM
Bit of an update on this rebuild, yes, it is still in progress but has been delayed numerous times.

At one point was pushing hard to get it back together and running as I had some shafts to make that were 118" long and the Lodge & Shipley only has 78" between centers. Everything was coming together until I had to wait a week for some parts from Bijur, and then I got cold feet about getting it back together in time to meet the delivery date, so I invented a way to do the longer shafts in the L & S.

As a side note in the continuing discussion about wishing for a bigger lathe/mill/shop etc. Not six months after I buy the biggest, longest lathe I could find, ( well, not really but sort of :)) the job of taking 1/2" off the diameter of 2 rolls is offered to me. The dimensions of which are represented by the sketch below. These are backup rolls for a rolling mill. Not only would they not fit in the lathe, but I would probably have to get the county to re-engineer the road to even get them to the shop!

Dave

http://i1042.photobucket.com/albums/b422/becksmachine/roll%20dimensions/image001.jpg

Bryce.R
06-04-2016, 03:13 AM
Not really on topic but what was your way of doing the longer shafts in the L&S?

becksmachine
06-04-2016, 04:05 AM
Not really on topic but what was your way of doing the longer shafts in the L&S?

Actually could be on topic, I was wondering if anyone would notice/ask. :)

They were fairly simple shafts, stock was 118" of 3 7/16" TGP 4140 with an 18" length on each end turned down to 3.2475"-3.2483". I removed the tailstock from the lathe and supported that end of the shaft in a steady rest, (two actually) and as the material was supplied cut close to length I had to weld a stub on each end to have something to grab with the chuck.

Grab the stub in the 4 jaw and dial in that end, while the outboard end is supported in the steadys running on the conveniently supplied TGP finish of the virgin shaft. This allowed me to do all of the cutting at the chuck end which did help reduce any tendency for chatter.

Then I had to cut the stubs off in the bandsaw and then face the shafts to finish length in the boring mill which wasn't too bad as they had to go to the boring mill anyhow to cut keyways in each end.

Once I got the two roller type steadys adjusted correctly, it did actually go fairly fast and didn't really have too much trouble holding those tolerances on a total of 12 shafts.

Dave

flylo
06-04-2016, 06:35 AM
Another nice job! I just found out the ways are replaceable/removable but I ran a dial indicator from virgin way on the head stock to all the way to the tail & most of the runs showed no wear & the most I could make the needle move was .0005 so 0" to 1/2 a thou works for me & I'll never wear it out. The backlash on everything is almost nil. I had someone take the head off & will try to post a pic but these things have huge heads & there looks to not be room for a mouse in there packed full of gears, no chipped or worn anything. I've decided to make it my gunsmithing lathe. It came from Checker Motors in Kazoo & I'm very glad to have it.

Bryce.R
06-04-2016, 08:16 AM
That's an extremely neat trick, ill keep that in mind for future projects. One day ill start a thread on doing big work on undersized machines and see what crazy set-ups people have.

Mcgyver
06-04-2016, 08:37 AM
A
Grab the stub in the 4 jaw and dial in that end, while the outboard end is supported in the steadys running on the conveniently supplied TGP finish of the virgin shaft. This allowed me to do all of the cutting at the chuck end which did help reduce any tendency for chatter.


That's clever, I'm sure I'm not alone in liking the tales of conquest.