Monoprice MP select mini extruder guide for TPU
thingiverse
UPDATE: There is an improved remix of this at http://www.thingiverse.com/thing:1919259 which works better! Go use that instead :) This is a sleeve/guide to prevent buckling of flexible filaments, and goes in the small gap between the extruder assembly and the start of the bowden tube. NOTE: In your slicer, turn it around by 180 degrees. There is a cutout cylinder at the bottom to match the bowden tube's input hole, and flipping it over will prevent any overhangs. Print Settings Rafts: No Supports: No Infill: 100 Notes: Printed in PLA Post-Printing May have to file the inner hole a bit to get the filament smoothly travelling through it. How I Designed This Openscad (source file attached)
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