Rotating Collet Rack for R8 collets. Holds 8 collets.
Requires 2 bearings, bolt, nut, and washer to complete.
This is similar to little machine shop Part Number: 5001, except this one only holds 8 collets.
11 position holder added. This only requires one bearing.
I printed in PLA with 60% infill and it seems sturdy enough. Print with support for the bearing holders and the mounting screws.
I reamed out the axle hole with an undersized 1/4" reamer. A drill bit will work just as well.
I used 2 bearings. They are 3/4"OD, 1/4" ID, 5/16" tall.
One bolt is needed. I used a 2" long 1/4" socket head cap screw.
One washer is used between the two printed pieces.
A nut is used on the top to hold it together.
If your bolt head interferes with the bearings you will need another washer and a longer bolt.
I placed some loctite on the nut to keep it in place.
11 position rack was printed in ABS.
This one spins more freely. There is no washer between the top and bottom piece. I used a washer between the bottom piece and the nut.