My own requirement were:- No need to reprint existing parts;- No loss of printable space;- Use of the PLA property for the elastic force required for the system to work;- Easy installation;I think I've made it work... ;)
<p>Still going strong (and with no apparent sign of fatigue)... Actually planning to design a bowden extruder with a spring based on the same principle! Already 3 months use.</p>