I included a cura generated gcode on a raft with supports.  Ender 3 family.

I think the infil is at 100%.  I used a mini vice-grip to take off supports.

I used these magnets: https://a.co/d/29V9GS2  They fit so snugly, I didn't use screws.

(the magnets are very strong)  $15.

Black was loaded and I was to lazy to change the nozzle so I could print in wood.

I used Fusion 360.