Sizes (screw_along and screw_across as well as other parameters)
can be easily configured in openscad file.
Makefile generates the STL.
A spring and slider printed in place provides the clip-on action.
Since the slider is printed in place, make sure to not too elephant-foot your first layer too much; might need to be opened up a bit after printing for the slider to be free.
Can be printed with open or isolated bottom:
| Open | Isolated |
|---|---|
 |
 |
The spring and shape of the hook make it snap into place with a satisfying click.
Printed in PLA, ABS and PETG and in all cases the spring-force is roughly
right (but can be configured with spring_height and spring_thick).
| Relay mount | Isolated Relay back | Solenoid |
|---|---|---|
 |
 |
 |
(c) h.zeller@acm.org, License CC-BY-SA