Soft touch knobs

These cabinet knobs are pleasant to the touch thanks to spiral narrow ribs all around. There are five basic shapes (3 bigger and 2 smaller) in the back-mount version (A1, B1, C1, D1, E1) and same in the front-mount (A2, B2, C2, D2, E2) version.

The back-mount versions have blind hole with a diameter of 3.5mm (use M4 bolt or 4-4.5mm screw). The front-mount versions have a through hole with a diameter of 4.5 mm (use M4 bolt or 4-4.5mm screw). But be prepared to use a drill, these small holes tend to be smaller on printed part compared to 3D data. 

The ribs are 0.8mm thick, which is just enough for two passages for standard 0.4mm nozzle.

Printing:   I recommend 3 or 4 perimeters and brim (I used 3mm brim) to make sure it will stick to the bed better. I printed these with PLA, but you can go with other materials too. Btw Prusament PLA Blend Lime Green is awesome.

Tip: Use mirroring in the slicer to reverse the spiral of the ribs.

Also check out:

https://www.youtube.com/channel/UChKp-968z1i5PN29gbR7YfA

https://www.cgtrader.com/rorys3d