I construct these in Frontpanel Designer directly by using the built in engraving functions this way:
- create a circle with the needed diameter
- draw a line that is longer as the circle diameter and copy it as often as needed for the steps of your switch.
- rotate each of the lines in the required step (e.g. for 15 degree steps: 15°, 30°, 45°, 60°, 90°)
- draw the hole for the pot/switch
- select all lines, the hole and the circle and centre them horizontal and vertical automatically by FPD
- group all these lines and the circle (leave the hole out of the group but don't move it)
- you now have a 'grid' to place the dots in FPD itself
- draw and copy the dots you need in the required size and move them to the cross sections of the just drawn 'grid'
- delete the 'grid' afterwards
- group the dots and the hole to allow placing the group by its graphical middle
- adjust the hole as a reference for the group
- ét viola