Very simple to construct from readily available parts;
- C12-ER16A-150L spindle
- two BK12 bearing blocks (total four 6001Z bearings inside)
- Locknut (BK12) with setscrew drilled to 12 mm
- Flat bars, 60 x 10 mm and 25 x 15 mm, length 100 mm, stainless steel 304
- Allen cap screws; four 8mm and eight 6 mm
- Cordless drill
Took me 8 hours to complete this job. No drawings were necessary for this build.