Magnetic Screw Hook

Needed a magnetic hook to hang my 1m ruler so designed this.

I'm using 2x rare earth magnets with countersunk holes.

Rare Earth Magnet: OD 15mm, ID 4mm, Thk 4mm

Countersunk screw M4x12 x01

Countersunk screw M4x30 x01

Nuts M4 x4

Spring Washer M4 x01

Note:

Hexagonal recess should be positioned on the base plate of 3D printer

After printing, snap off the supports in the hexagonal recess.