An IDEX printer I designed. 

The main goal of this design is to mount all motors stationary, while still no control mixing required for the x-y motion system. Currently it is mostly a placeholder, I want to upload this first to encourage me to draft up instructions. I'm not sure if I ever have the spare time to tally up all the screws I used for this. But feel free to DM me if you are building one and need assistance. I will try my best. 

The project started around the summer of 2020. 

Features:

• Dual extrusion with very low material wastage
• No mixing control for x-y motion system 
• All motors mounted stationary
• Light x carriage 
• Ooze cap for the extruder
• Mostly 3D printed, need some sheet metal work for the build plate 
• I added semi-automated build plate leveling by probing four end-stops around the build plate: https://www.bilibili.com/video/BV1Pk4y1Y75c 
• Triangle frame with good access when the build plate is lowered 

Specs

Printable area (approx): 270x205x199  

Controller board: 

Duet 3

Extruder: 

2xBiqu H2

Linear rails: 

X axis: 1x 400mm MGN12, 2x slider

Y axis: 2x 250mm MGN12, 2x slider

Z axis: 1x330mm MGW9, 2x slider 

BOM of the aluminum extrusion: