Vinyl cutter knife attachment for CNC router

Vinyl knife attachment for Roland style knife holder, attaches to 80mm spindle.

Note that the spindle itself is not used; the knife holder has its own integral bearings so the attachment holds it offset from the spindle.

The knife holder can slide inside the boss, held by the spring. This allows the knife pressure to be adjusted by the changing depth of cut.

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Bill of materials

- Knife boss, 3D printed
- Bracket, CNC cut from 8-10mm acrylic or aluminium
- M3 x 15mm machine scr