Gallery, Projects and General > Project Logs
Making a Rotary Table
NormanV:
It's not been a good day today. I bored the top plate to take a steel bush for the spindle to run in. I then started on the bush, I managed to make the OD undersize and the ID oversize! So I started again, I was lucky to find that I had a piece of steel just a few thou oversize, but I am fed up with having to hacksaw through 40mm dia. bar (next project, power hacksaw)
I completed the bush correctly this time, a press fit into the top plate and, at the moment, a tight fit on the shaft. Tomorrow I will lap it to fit.
NormanV:
I finished lapping the bush and pressed it into the top plate and then drilled and tapped the holes for attaching the top to the main body.
NormanV:
I have used a PTFE washer under the table to reduce friction. I scored the outside circle with my dividers and then snapped the waste material off. It gave a rather ragged edge so I tried cutting it with a scalpel, it cut very easily and gave a much better edge. I had to resort to sanding the outer edge to smooth it.
NormanV:
Then the exciting part! First assembly, it all fitted together nicely. You will notice that I have left the top oversize. This was to enable me to adjust the gears to be free of backlash without the necessity of ultra precision marking out and cutting, this has worked well. The next job is to dismantle it and trim the ends.
awemawson:
:thumbup: All looking very nice Norman :thumbup:
Are you going to mill Tee slots or drill and tap a matrix of holes as hold downs?
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