Stepcraft Rubberfeet Mount

Currently I am doing an inspection of my Stepcraft 420 Version 1.
The glue of the rubber-feet went off and left a mess. So, I decided to have a better mount for them. I did not like the idea of drilling and tapping into the alu-profile because I think that the grease would find it's way through after a while.

So I constructed these "shoes" which will simply slide into the profile. The original rubber feet can be mounted by M3 screws or you can use double sided tape to glue them in. First I'll try how it works without further fixation. If the mounts won't stay at their place, I'll probably try with superglue.

The print was done with the smallest surface on the bed without support or raft, but with brim. The round part which slides into the screw-slot has been sanded just to get rid of the layer-ripples.

Parts needed (if you want to screw the feet):
4x M3 x 10mm
4x Washer
4x M3 Nuts