Edit 4.30.24
Last year i revised the bearing mounting area to be a bit stronger. Figured I'd put that up here too. Called oil filter cutter with recess for spacer v2.stl.
The cutter head/handle cover will work w/ this just the same.

Used 8207 bearings, 1/4" 20 feed screw, 5mm countersunk screw for blade. 2 metal self threading screws I stole from some old printer. .

I created a second cutter module that accepts an 19.11*12.83 aluminum spacer I had lying around. You can modify this recess for whatever you want your jack screw to contact. You can use as is but I'd recommend using the cutter w/ the recess and putting a washer in if nothing else. OR the other option is to grind the OD of that jackscrew to fit into the hole (I had planned to do this but decided an insert was a better idea)

Added a handle after the fact which uses the same 1/4 20 bolt. The bolt can be pressed in and the cap uses 4-40 caphead screws I had laying around from my RC dats

Bearings:
https://www.amazon.com/Groove-Bearing-Bearings-Skateboard-Printer/dp/B07FGVFN6F/ref=sr_1_4?dchild=1&keywords=8*22+ball+bearing&qid=1630820787&sr=8-4
Cutting wheel:
https://www.amazon.com/gp/product/B07Y2ZM6FN/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1

Creality

Ender 3

No

Yes

200

20

Used 8207 bearings, 1/4" 20 feed screw, 5mm countersunk screw for blade. 2 metal self threading screws I stole from some old printer. .

I created a second cutter module that accepts an 19.11*12.83 aluminum spacer I had lying around. You can modify this recess for whatever you want your jack screw to contact. You can use as is but I'd recommend using the cutter w/ the recess and putting a washer in if nothing else. OR the other option is to grind the OD of that jackscrew to fit into the hole (I had planned to do this but decided an insert was a better idea)

Bearings:
https://www.amazon.com/Groove-Bearing-Bearings-Skateboard-Printer/dp/B07FGVFN6F/ref=sr_1_4?dchild=1&keywords=8*22+ball+bearing&qid=1630820787&sr=8-4
Cutting wheel:
https://www.amazon.com/gp/product/B07Y2ZM6FN/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1