Clausing Model 100 mk3a (methinks)

rogerrabbit

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Hi All,
I know I haven't posted in a while (keep getting the reminder when I log in).. but here is a new lathe I picked up over the weekend.. I believe its a Clausing 100 mk3a (serial number plate on the tailstock was not there).. I checked a few of the other posts with pics and it looks identical except for the change gear cover.. mine has the power switch attached, looks original but who knows.

found on CL, actual unit was in the back of a motorcycle repair shop.. he said he bought it a few years ago but never did anything with it.

so far the issues are:
1. main gear (bull gear?) is missing teeth, been checking out the repair options in the forum.
2. the other gear (back gear?) is also missing teeth..
3. chuck is stuck. This method seems to be the best bet:http://www.practicalmachinist.com/vb/south-bend-lathes/how-remove-stuck-chuck-tutorial-165028/ (hope its ok to link other sites?)
4. jacobs chuck is also stuck, I will try to remove by taking the tailstock wheel off and try to punch it out from that end.

couple of questions (yes I am a newbie for machining/lathes:))
1. The lathe is running clockwise when viewed from the tailstock end.. this seems to be backwards from what i have seen on youtube videos.. i checked the motor, seems to be reversable (its a 3/4 hp HF unit), but is there any reason why someone would hook it up backwards?
2. the pics of similar lathes show a clutch lever.. i didnt see one (discovered this today, so I will look more when I get home).. the back gear seems to be working in its place??
3. The 2 really rusted pieces are a steady rest and I am not sure about the other.. follower rest? I want to research how to use them, just not sure what to look for.
4. The big wheel attachment, what is that called?

Thanks in advance,
-- Roger
IMG-20120609-00129.jpgApopka-20120609-00130.jpg
Front and back view
Apopka-20120609-00143.jpgApopka-20120609-00141.jpg
apron and stuck chuck
Apopka-20120609-00140.jpg only plate on the latheApopka-20120609-00139.jpgApopka-20120609-00138.jpg
the broken gears (still runs though)
Apopka-20120609-00135.jpg
accessories.. this and a coffee can full.. will post pics soon.
Apopka-20120609-00134.jpgApopka-20120609-00132.jpgApopka-20120609-00131.jpg
rests and i dont know what..

Apopka-20120609-00143.jpg Apopka-20120609-00141.jpg Apopka-20120609-00140.jpg Apopka-20120609-00139.jpg Apopka-20120609-00138.jpg Apopka-20120609-00135.jpg Apopka-20120609-00134.jpg Apopka-20120609-00132.jpg Apopka-20120609-00131.jpg Apopka-20120609-00130.jpg IMG-20120609-00129.jpg
 
sweet find... I recently started to really like clausing machines (I wonder why). the rusty parts are a follow rest- and a taper attachment that connects to the bed+carriage for turning tapers- those are nice accessories to have.

the lathe should definitely be turning CCW during normal operation - it's probably that a previous owner connected the power cable in reverse - not a biggy - just swap the power cable to re-reverse it back to normal. depending on what this lathe was used for - it might have made more sense to run it in reverse (maybe it was setup for a specific job). I wouldn't think about it too much and just reverse the power cable back to normal though.

not sure about the clutch. nor familiar with this model. maybe someone else can chime in
 
taper attachment, awesome... so I will be able to make my own b &S #9 for the burke mill!
 
taper attachment, awesome... so I will be able to make my own b &S #9 for the burke mill!


UGH! :mad: My bad.... didn't look closely enough - I think it's a follow rest... sorry.... is it about the same size as the steady rest just a tad bit smaller?
 
update: I got the jacobs chuck off..
looks like there is a hole where the clutch is supposed to go, but seems the whole mechanism is gone?

attached are some more pics of the mystery jig.. it has slots for 2 cutters, 1 on each rod (bottom one is visible in the pic). if I pull out a retaining pin, then the mechanism pivots a bit.. some kind of boring bar perhaps?

Apopka-20120612-00153.jpgApopka-20120612-00154.jpg

Apopka-20120612-00154.jpg Apopka-20120612-00153.jpg
 
Looks like an earlier version of an MK3, your (missing) shift handle looks like it was on the right; MK3a was moved to the left.
The best overview is on Tony's sitey-http://www.lathes.co.uk/clausing/index.html- , you should be able to narrow down what features you have there.
The mystery attachment looks like its for boring, does the capstan (spoked) wheel fit anywhere on it, or are there gears/a rack/screw drive in it/ on it?
It looks like you're missing a handle on the apron also, can't tell if that's a handle or a push button from the pics.
Judging from the way the drive is set up, your clutch may be MIA
This is a pic of my Model 110 MK3a (100 series) as I found it; it's (still) in storage right now waiting for a resto. It has a model 200 apron that was used on later models.
I have a manual that I got from Clausing for free, you can PM me with your e-mail and I'll send you a copy if you want
 
yes, the wheel is off pic on the right, it attaches to a rack that moves the one of the cutters in/out (the upper one in the pic).

re: missing handle.. there is a push button, looks to be 3 position, if I push it all the way in then the wheel moves the cross slide, if all the way out then it moves the apron.

thanks.
 
Sorry, clicked submit instead of preview-

Anyway
The attachment is almost definitely for repetitive(or any other) boring and turning then, pretty cool too. Since it pivots, you can cut tapers too.

The three positions of the button on the apron should be (1)crossslide and (2)apron movement, which you know, the third
"neutral" position would be when you use the half nuts to thread ( I think). Best way to check, while in neutral, is to set the quickchange gearbox and sliding gear to cut the coarsest thread possible and then engage the halfnuts while turning the headstock by hand and see if the carriage moves. if it does, viola! it works.
 
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