Gallery, Projects and General > How do I??

taper problem.

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wheeltapper:
Oh you are going to love this. :lol:

to recap, cutting a taper, toolpost in usual position, large end of taper at chuck end, cutting right to left.

as you know, I stripped and refitted the top slide.

tried just now with a new piece of steel.
same thing, cutting barrel shaped. :doh:

then I tried something silly.

I moved the topslide assembly to the rear of the cross slide, put a different tool in, swung the topslide round a few degrees , ran the lathe in reverse and cut on the back of the taper.

and it cut a WASP WAISTED taper  :doh: :doh: :doh:

so I've got a topslide that likes to turn right. (sounds like a Dr Who story).

at least it'll fit without a wobble  :D

if the tool was being pushed away from the cut as the topslide extended you would think the cut would be the same no matter what side it was cutting.

I don't think I want to turn anymore tapers. :( :(

cheers

A thoroughly confused Roy

DaveH:
Roy,

Thanks for letting us all know.

Quite a clever way you sorted it out :thumbup:

I would tend to agree with you, nothing is pushing, I think it must be your top slide, or at least the dovetails.

I’m glad you have at least a morse taper you can use. :)
 :beer:
DaveH

John Hill:
So Roy,  does this indicates the top slid dovetails are not straight?

wheeltapper:
Haha, as far as I can see they describe a very large circle. :lol:

what I might do is strip the thing down (again) clamp the slide part onto the mill table and run a D.I. along the dovetails to see if they are straight.

I haven't got as far as working out what to do if they aren't. :bang: :bang:

if I do this I'll let you know the result.

Roy

DaveH:
Roy,


--- Quote from: wheeltapper on September 06, 2011, 04:23:53 PM ---Haha, as far as I can see they describe a very large circle. :lol:
Roy

--- End quote ---

Sorry to say I think you are correct :(
 :beer:
DaveH

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