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| Basic
dimensions of the plate. Drill the clearance holes for the #8 screw
oversize so you have wiggle room. The bearing hole should be a press
fit w/ whatever bearing you make. |
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| Need to make a plate that couples that crank with the stepper mount. The stepper mount is tapped. |
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| Some scrap plate cut roughly to size before milling. I think it was .156" thick. You could use any thickness you wanted. |
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| Milling to size. |
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| Finding edges. |
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| Drilling the mount holes. |
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| Turning the bearing from Acetal. Brass or any other bearing material would work. |
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| Scribing an index mark. |
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| Drilling
the hole. If I had planned better I would have gone with a 3/8" hole
& 3/8" bearing minor OD. I had to use a stubby drill for a 1/2"
hole... |
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| Filing a flat on a length of 1/4" steel shaft for the setscrew that couples the shaft to the shaft coupler. |
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| Mounted.
If you use something slippery for the bearing you may need to add a dab
of glue or in my case a couple of prick marks inside the bore of the
plate to keep it snug. |
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| Now the CNC ready rotary table can be used manually. |