PG35L Micro Extruder V2 - For J-Head
by UltiBots, published
Alibre PE source files included.
MendelMax 1.5+ kits and printed parts are available for purchase at ultibots.com.
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brnrd - No springs are needed. Â I have pushed 10+ kilos with no troubles. Â Unlike yours, this design has an internal bearing that is in direct contact with the hobbed gear and opposes the idler tension. Â It was designed to work with a PG35L geared motor.
Â Looks very similar to http://www.thingiverse.com/thi.... In that one, I used a spring to apply tension on the idler bearing. Don't you need one on this one?
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This extruder works well with AlephObjects Supa-Flat X-Carriage
The bearing holders shown are:
thingiverse.com/thing:15205, the last one on the download list.
The V2 and V2.1 idler requires M3-40 bolts.
V2.1b and 30mm versions use M3-30 bolts.
Otherwise TrinityLabs vitamins are OK.
You will need to remove and drill out the support layers on the idler and body.
08/16/12 - v2.1 has nut trap inverted for reverse direction mounting orientation.
i.e. tighten idler from right... v2.0 tightens from left.
08/23/12 - corrected idler stl and added hole support. Added v2.1b with idler nut traps moved to allow for M3-30 bolts. Have not tested with 30mm bolts. Please comment if OK.
09/06/12 - tweeked v2.1b with a larger internal bearing cavity and M3 nut traps for the eMinebea motor. The new file is micro_extruder_body_30mm.stl Also tweeked is the idler with a wider bearing cavity.
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