YL3JD's keys.
Homebrew Torsion Bar Cootie.
I made it mostly from scrap metal.
Tools only a file and a Bosch PBD40 table drill.
The torsion bar itself is 3 mm diameter the support bar is 10 mm.
I like the key feeling very much.
The travel through the end feeling is slightly harder than the Begali but i like this.
Weight 1,3 kg.
[YL3JD].