The Shop > Tools
S3 Mini Lathe - Cross Slide Screw Mods
steampunkpete:
--- Quote from: John Rudd on September 17, 2014, 09:05:50 AM ---Thanks Mike,
I'll start to get material together to make the necessary mods to my Sieg when we get back home...
--- End quote ---
The bearings come in packets of 10, so I've got spares. If you let me know your snail-mail address I can pop a couple of bearings in the post.
John Rudd:
Pm sent let me know how much I owe you please......
thnx
JR
steampunkpete:
Nought, lad, nought.
But I can't post until I get home tomorrow.
John Rudd:
Ta very much....let me know if I can return the favour sometime please....
i'm now home after a gruelling 5,500 mile journey from Lake Tahoe....tired! nah, just unpacking the goodies I bought from the local Harbor Freight store while I was over there.... :lol:
steampunkpete:
Finished~ish. The only outward sign of the mod is a thicker washer behind the handle.
The action is now smoother than a baby's bum. The backlash has fallen from ~6 thou to 2.5 / 3 thou. Not a bad result. I was hoping for a bit better, but I think that the spare spindle that I got from Amadeal to do the mod with has a bit more end-float than the original (I like to be able to put things back to original, so mods tend to get done using spares if an irrevocable change is involved). So after Xmas, when I have retired, the plan is to add a 3/4 inch spacer to pull the cross-slide back, and fit a longer lead-screw, and at this point consider / try using a plastic leadscrew.
Has anybody got any experience with the plastic lead-screw nuts? These have a built-in pinch arrangement to eliminate backlash. Are they suitable for small lathes?
If you look closely at the picture below, you can see another mod; the upgrade brass gibs have been fitted to the cross and compound slides. They almost completely fill the space and are far superior to the gibs that come with the lathe.
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