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6" Vertex rotary table problem

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awemawson:
It'll work, but your MT3 centre will end up a surprisingly large amount lower - funny things taper fits  :bugeye:

BillTodd:
 As mentioned above, mount indicator on the table and clock the spindle of the machine.

One thought, I wonder if the table is bolted to the bearing?  even my sip has a bolted construction so might be worth checking.

picclock:
@WeldingRod, hanermo
Thats a neat idea I hadn't thought of. I will give it a go as its no good as is.

@BillTodd
This table has about 40 turns for one revolution, not sure my wrist could take it  :D
I have an adapter for a dti which clamps directly onto the er32 collet nut. This is what I usually use. Originally lined it up using the morse taper and couldn't figure out why the bits were so wonky.
This table is a one piece casting with plain bearing and taper all in one.

@awemawson
If I get it right it will increase the depth by 230thou - but I can live with that

Best Regards

picclock

BillTodd:
Normally, one would disconnect the worm and rotate table manually..

interesting that it has only 40 turns per rev, presumably 8t has an indexing facility??

Bill

picclock:
@BillTodd
The number of turns for 360 degrees is 90 and the indexing on the wheel is for 4 degrees - I just new it was a lot of turns. The reason I don't disengage the worm when setting up is that its nigh impossible to get my fingers to the locking screw. This is because I have a large fixture plate attached to the top of the table - its a bit of a nuisance because I always bang my knuckles against it when rotating the table.

I have machined a step as suggested by WeldingRod, and that used in conjunction with my er32 collet clamp dti makes it easy to set up.

I've getting closer to finishing my larger CNC mill, and then with luck I will be able to repurpose the rotary table as a 4th axis for gear making etc.

Best Regards

picclock

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