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Rotary table stops

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Ramon Wilson17/08/2010 23:03:17
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1655 forum posts
617 photos
Ah Peter and would that be a certain crankcase
 
Is it going well?
 
Regards - Ramon
John Olsen18/08/2010 10:13:18
1294 forum posts
108 photos
1 articles
My experience with Morse adaptor sleeves is that they love to stay on the smaller taper, leaving you with very little to get at to knock them of!
 
So while we are on rotary table ideas, I recently had occasion to bolt down the ends from my water tube boiler on the table so that I could cut the groove for the copper gasket. These are a disk of steel about 8 and a half diameter, and an inch thick, so just over the size of my 8 inch table.  *  They have three holes in them, and of course the table has four slots. Extra holes not acceptable in either the table or the boiler ends. So I cleaned up a bit of 5/16 plate that was lying around, drilled it with 7 holes, four to match the slots and use a countersunk allen screw, and three to match the stay holes on the plate.  The three scews holding down the job were tapped into the plate, the length being carefully adjusted so they don't go right through and mark the rotary table. Did that job fine, and now I have a "sacrificial" table that I can use for any other tricky jobs, just drill and tap wherever needed for the particular project. When it gets too much of the Swiss cheese look, throw away and start again. You can get a much firmer setup like this too, no dogs trying to slip off the job. I have done the same thing on my little Unimat, most often for turning, and also on the Myford to allow boring things that are really too big.
 
* for those wondering, this is not a model boiler, or if it is it is 12" to the foot. Being built to ASME standards and inspected professionally. 
 
regards
John
 
Peter Gain21/08/2010 10:56:19
103 forum posts
Hi,
Thanks to those who replied re-the "collar" in the centre of my rotary table. It is just what you predicted; a 2/3 Morse adaptor that stands proud of the table. I was able to knock it out without much trouble. (My 50 ton press is out of commission). One of those little problems which are obvious once someone tells you! Another example of useful help from this forum.
Thanks,
Peter Gain.
PS to Ramon, the Nova crankcase is nearly finished.
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