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Imperial acme threaded rod

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JasonB05/05/2018 07:59:43
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15175 forum posts
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By the time they had added taxes and shipping there end and you then add import duty, VAT and fee this end you will probably find HPC or one of the other UK sources cheaper

Paul Appleton 121/02/2019 08:15:34
11 forum posts
11 photos

Mcmaster-Carr will no longer accept orders from the UK. Try finding a LH Acme 5/8x10 tpi leadscrew and nut in Europe!! The old Colchester lathe I have originally has a 5/8x5 TPI thread on the crosslide. This is not even mentioned in most data books. By replacing with a 10TPI I would have had a direct read dial. Wow! how 'modern' is that?

Kingston Engineering can supply 5/8x 8 LH acme screw and nut 'off the shelf' for around £50 total. But of course I then have to make a new indexing dial.

I realise that the auto feed rates would be affected by doing a conversion, but thats not really a biggy for me.

BR, Paul

Dave Halford21/02/2019 11:53:03
373 forum posts
3 photos
Posted by Paul Appleton 1 on 21/02/2019 08:15:34:

Mcmaster-Carr will no longer accept orders from the UK. Try finding a LH Acme 5/8x10 tpi leadscrew and nut in Europe!! The old Colchester lathe I have originally has a 5/8x5 TPI thread on the crosslide. This is not even mentioned in most data books. By replacing with a 10TPI I would have had a direct read dial. Wow! how 'modern' is that?

Kingston Engineering can supply 5/8x 8 LH acme screw and nut 'off the shelf' for around £50 total. But of course I then have to make a new indexing dial.

I realise that the auto feed rates would be affected by doing a conversion, but thats not really a biggy for me.

BR, Paul

 

Paul, Whats wrong with using HPC? https://www.hpcgears.com/pdf_c33/2.8-2.9.pdf

 

Edited By Dave Halford on 21/02/2019 11:53:34

Pete Rimmer21/02/2019 15:52:00
286 forum posts
3 photos
Posted by Paul Appleton 1 on 21/02/2019 08:15:34:

Mcmaster-Carr will no longer accept orders from the UK. Try finding a LH Acme 5/8x10 tpi leadscrew and nut in Europe!! The old Colchester lathe I have originally has a 5/8x5 TPI thread on the crosslide. This is not even mentioned in most data books. By replacing with a 10TPI I would have had a direct read dial. Wow! how 'modern' is that?

BR, Paul

The reason is that it's a 10tpi pitch .200" lead 2-start thread.

colin vercoe21/02/2019 17:34:47
26 forum posts

Try the Halifax Rack and Screw Co they were very reasonable

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