Morse key
thingiverse
Morse keyer for CW with kids no spring need, no screw. Only need pieces of copper wire: like diameter 1.4mm (1.5mm2) for electrical contact, and the little pivot. no support needed. Printed in 0.3mm. But better in 0.2mm V4 is a good version V5 is smaller and I try to speed up the print with 0.4mm nozzle diam. V8 maybe more easy to build for young people.
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