I wanted a wall mount for my helmet that mounted the helmet close to the wall and remained pretty hidden once a helmet was placed on it. This is the fifth iteration of the mount and it seems to work pretty well at this point.

The screw comes in two different forms, one with the knob and screw as one piece and one where the knob is separate. I figured that some people would want a knob they could use between all the wall mounts instead of having a separate knob on each.

Here's a post about it on my Instagram. There are more posts about the helmet mount there as well as some previous iterations.

https://www.instagram.com/p/COs4MjzLkvc/

NOTE: Yes, I know this will put strain on the back of the helmet.

Printing

For my prints I went with 3 perimeters and 20% infill, but if you have a heavy helmet you want to hang, then more perimeters will increase the strength.

The parts are modelled to be printed without supports.

Assembly

The only hardware you need is 4 m3 screws:

2 x 5mm (6mm might work)

2 x 12mm

The short ones goes in the holes at the side towards the wall, and the long ones go in the holes underneath the screw.

You need some glue to attach the plate_screw_mount to the screw.

For the surfaces that will touch the helmet I've glued on some 2mm craft foam.