Spool tangle and out of filament Anet A8 stock board

The idea for my project was to avoid problems when I have a spool tangle by having the out of filament cycle tripped when I have a spool tangle.

Here is how it works; I mounted a limit switch on each side of the spool cradle the rod that holds the spool holds the switches open when the rod moves up in the spool cradle and either one of the switches closes the change filament cycle will be activated. I also printed hubs for the spool with ball bearings and a mount to hold a clip to prevent th