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RandA lathe

Screwcutting

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Nobby14/02/2012 12:42:32
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587 forum posts
113 photos
Hi Guys

On the RandA lathe for screwcutting would I need a Thread dial indicator.? I think it may be similar to the ML 10 .

Nobby
Les Jones 114/02/2012 13:30:13
2292 forum posts
159 photos
Hi Nobby,
Ady came up with a very clever idea as an alternative to a thread dial indicator in This thread It uses an up/down counter. It should be possible to build a counter similar to the one he used.
 
Les.
Bazyle14/02/2012 15:56:26
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6956 forum posts
229 photos
It needn't stop you. Keep the leadscrew engaged while winding the saddle back. On larger threads you can takeup the slack and position it by eye anyway.
 
For a simple indicator you can make a 'gear' to engage the leadscrew out of cardboard at a pinch, or plastic or brass to be posh. It only needs the crudest of teeth to keep engaged and provide the count. Just make sure the lash up you concoct to hold it stays in place and isn't where you can knock it..
Nobby14/02/2012 18:01:43
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587 forum posts
113 photos
Hi Les & Bazyle

Thank for input on this question . I am looking for a new project and hope to do a complete lathe up . I have a flat Drummond 1903-1912 and have a similar problem

doubling up threads Its OK if i set the pedal up But that's hard work. and the leather belt has broken . I will have a go at making a indicator .Watch this space as they say

Nobby




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