Many thanks for both your replies. I just looked at clockwork motors Greg Locock and that seems like it could be a viable option.
There are 2 options for specs; the diameter of the spool can be no more than 50mm and width of the spool no more than 100mm. Or diameter < 85mm and width < 70mm...
Hi there,
I'm looking for types of retractable springs. From what I've found, I'm a bit unsure of what springs are used in tape measures (not the tape itself). What I've gathered is that it could either be a; power spring, extension/constant force spring, or spiral torsion spring. What I'm...