It's finally ready to use in its entirety. I changed the main part for full drill depth and more stability. You can now use universal sizes for chucks, mills, and bearings, which are easier to find. For others same as the old project and if you like that version, you may keep it :)

External part list
10mm linear bearing X 4
10mm bar 30cm X 2
10mm chuck
30mm x 10mm bearing X 2 (for new design)
5mm and 6mm screws with nuts.
Pls watch the YouTube assemble video. It will help you

https://youtu.be/ckdEGbicLNI