About this 3D model

The Makibox "Zen" extruder is remarkable for its simplicity and low-profile design. However, in its first shipping version, it has some issues, notable that the idler tension is not adjustable and the idler wheel spokes often break, leaving one with an extruder that doesn't work reliably. This my design for a replacement extruder that addresses those issues. Primary design criteria were: 1) Must fit in the existing Makibox extruder location. 2) Must utilize the Makibox standard stepper and (non-removable) extruder gear. 3) Must be 3D-printable. 4) Must use a minimum of easy-to-source parts (for non-printable components). Initial tests are quite positive. Huge thanks to the Airtripper and T2 extruder designs for inspiration. ---------------------------------------------------------------------------- Feb. 19, 2014: 2nd main body version uploaded (look for "Chopped" in the file name); this eliminates a couple of overhangs that may be harder to print. The original version is preferred and is aesthetically better but if you're having trouble printing this, try the "Chopped" version. ----------------------------------------------------------------------------