Customized things for CNC first job.
Need Inventor and use 'Parameters' window to customize.
Wasteboard need to be CAM with Inventor CAM, default settings to M8 T-Nuts
Holders was made for 3D printing but can be CAM too.
For Magnetic dust shoe see here: https://www.thingiverse.com/thing:3849307
Note: I have spend many hours trying put this together so you can supercharge your CNC for free, if my work is important to you or you fell this worth a tip i'm open to donations: https://www.paypal.me/SkillTournament
Use ABS or other strong and flexible filament