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13th November 2010, 02:46 PM #31
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0.02 is not that hard..... 0.01 is not easy...especially with an older or not well built lathe...There is only 5 microns difference between 0.02 and 0.01...
Originally Posted by Dave J
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13th November 2010 02:46 PM # ADSGoogle Adsense Advertisement
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13th November 2010, 03:21 PM #32Dave J Guest
True about the old machines, I was more thinking of a 20-50mm long bearing surface because we were talking about a bush. It does make it easier having a DRO as well.
You might want to edit your post about microns between as their are 10
Dave
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13th November 2010, 03:33 PM #33
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5 per side Originally Posted by Dave J
You only take of 5 microns to reduce a diameter by 10 microns..
That is what makes it so hard once you get into small sizes...
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13th November 2010, 03:53 PM #34Dave J Guest
5 per side, we were on different tracks
Dave
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16th November 2010, 09:19 PM #35
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Another loctite fan
I converted the cross feed on my lathe to metric some years ago. I bought the leadscrew from H&F and I made the nut block out of mild steel and cut the thread in a piece of phosphor bronze and loctited it into the steel block. If the thread ever needs replacing, I only need to make the bronze bush, not the whole nut. This method also eliminates the problem of the bush crushing where a good fit is needed.Just make the bush the correct size and glue it in. psst. don't tell anyone.
Russell
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