420 roller chain. Modular, with chain lock and sprockets

420 roller chain, chain lock included

42 links 53,3 cm
84 links 106,7 cm
168 links 213,4 cm

Also made a 102x102 mm version for smaller printbeds

Sprockets:
9T,11T,12T,36T,48T

You have to break off the two ends so you get two "female" links to mate the chain lock with. The reason they are there is to provide support for the female ends during printing.

https://www.youtube.com/watch?v=2Vp0MVR-mFI&t=6s

For STEP files, see:
https://grabcad.com/library/3d-printable-chain-and-sprockets-1