B_Y Thanks Jane!

B_Y:

Update 23.7.19: Nearly there! Good enough for testing I guess

Wow! For a simple little mod getting the details right has been a bit of an adventure. I'm in the process of fully updating this thing with a full of instructions and files...

What is it?
B_Y Thanks Jane is a homage to a Black Adder character, never seen but much talked over. It's intention is to enable two colour printing through a single hot end. At it's a Y-joiner to allow two Bowden-type to take turns with a shared hot end. The devil is in the detail and the detail has not been easy to sort; this thing can be 'split' in to a number of sub-parts:

i) Why?
Two colour printing opens up all sorts of possibilities. The traditional way is to have a head with two hot ends. This doesn't require much thought and has the added advantage that you can use dissimilar plastics in each hot end. The downsides are the extra weight will limit accuracy with speed while getting the two heads properly aligned and functioni