My Clausing 100 mk 3 Serial# 5396

[34_40]

I'm digging your attention to detail. "Leveling" is something I really should do but, I've never worked to a very high level of accuracy. And now thinking about it, I haven't done many long projects / parts that would show much drift from misalignment.

 

[WEL0058]

Thanks Mike,

Well I want to see how much improvement tighten up and making things more rigid will be. The way the lathe was setup before, was getting about 0.003“ taper along 6” shaft. The lathe was not leveled and on a wood skid.

Tailstock back together but getting binding with my crossfeed lead screw. Once get this resolve will be able to make some chip.

 

[34_40]

Thanks Mike,

Well I want to see how much improvement tighten up and making things more rigid will be. The way the lathe was setup before, was getting about 0.003“ taper along 6” shaft. The lathe was not leveled and on a wood skid.

Tailstock back together but getting binding with my crossfeed lead screw. Once get this resolve will be able to make some chip.

I'm waiting for that day. You've done such a fine job so far, I'd like to see what kind of precision you can get out of the ol' girl.

 

[WEL0058]

Hi Stefan The gear Q-540-S is 0.500 thick imperial. Photos of geartrain

 

[toosix]

Thanks Bob, that is going to help a lot.

 

[WEL0058]

Stephan - How you are making out on your lathe?

Well it has been a while since last post. Left off with my cross slide screw bent is several places beside it had wear in the middle could feel with new nut. Was going to try to turn ACME threads and make a new screw. Look at this project really need a follower to keep the threading operation from defecting the shaft.

Checked in with Tom at Clausing but no longer have the 100 Mk3 cross slide screw but they still produce the cross slide screw Part# Q-352 for the 4800 series and several other models. For $189 for a new screw, gear and nut, that price did not seem that bad consider the extra tooling and labor. Looking at the other Clausing parts manuals, the saddle, cross slide and compound share the same parts with the 200, 6300, 5300 and several other lathes. The 5900 is a different animal... Will follow up more pictures this week.

 

[WEL0058]

Well just merging my other thread into here...

Replacing my Clausing 100 mk3 cross slide screw. Was going to try turning a new cross slide screw but did not have a follower.

Tom McNett at Clausing said the crossslide screw no longer available. Decided to retro the 4800 series cross slide screw part# Q-352 on my lathe. Ordered the Q-352 from Clausing for $189. There was a 2 to 3 week lead time. Received the screw which also include the nut and gear.

Replacing my 100 mk3 crossslide with a crossslide from a Clausing 200 lathe. It is the same casting as the 4800 but does not have the recess milled for the taper attachment or chip guard. Have already rough milled a 0.750 x 0.125” recess.

Need to know the following:

1. Recess width

2. Recess depth

3. Distance between two screw holes

4. Distance between screw hole and edge of recess

5. Assume holes are 1/4 UNC threads

Appreciate any information,

Bob G.

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[WEL0058]

Well I reached out to Tom McNett and he came through with two drawings. The 4800/6300 cross slide part# is DL-458 and the cross slide shield# Q-560.

I see the Q-560 in the parts diagram but not sure how it fits in. Will make one from the drawing see how it goes.

 

[WEL0058]

Purchased a Clausing 200 cross slide. Milled a 2.5” x 0.060” between the dove tail for the chip shield and notch top rear of slide for chip guard.

Made the chip shield out of 10 5/8 x 2 1/2” 16 gauge stainless steel. Used the mill with center bit to scratch the shield layout. Used cobalt drill bit to drill the inside corners. Used 1mm thick abrasive disk for the straight cuts. The layup took three times longer that the time it took to cut out.

Made the chip guard from 3-1/2 x 6 x 1/4” cold roll steel. Drilled two 1/4” holes and counter sink with 1/2” 82 degree zero-flute counter bore bit for the flat head screws.

 

[WEL0058]

Ready test fit the and see how going to mount the 6” iGaging Absolute DRO to back side of the cross slide.