One-Up / Two-Up Bowden Extruder
thingiverse
A Bowden extruder design, compatible with One-Up/Two-Up printer models from QU-BD, supports Ubis-style and "Groove-mount" hot-ends like E3D and Pico. It works with the mechanical endstop bracket set and features a mounting shelf for a high-airflow blower fan, as well as a Z-Probe servo mounting point. Additional hardware required includes M3 and M2 bolts/nuts, while optional cooling hardware includes 30mm or 40mm blowers. For bed autoleveling, a Micro Servo and Normally-Open lever switch are needed (additional electronics required due to Printrboard limitations). The design has been updated for improved barrel cooling and removal of the cold-end mount. Note that this is not fully tested yet, YMMV. Links provided for optional 30mm and 40mm fans.
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