Update: This extruder is super duper out of date but kept up for historical reasons. For the latest extruder, check out the files on the Jubilee Wiki.

This is a direct-drive extruder for Jubilee, my toolchanging 3D printer.

Feature Breakdown

• Direct-Drive for hassle-free retraction
• Compact Design
• Parks into the parking post on Jubilee's Toolchanging System

Shopping List

All stock parts for this extruder can be found on the second sheet of the Jubilee Shopping List. Note that it is listed for an order of 2 extruder heads.

Print Settings

Print all parts in the displayed orientations with the following settings:

• 0.2mm layer height
• 6 perimeter layers
• no supports
  Exception: print the v-groove locking plate with 0.1mm layer height.
  Exception: print the fan shroud with supports.

Laser-Cutting Settings:

• Cut the compression_flexure from 0.125-in. Delrin

TODOs

The fan shroud currently needs some work for improved airflow, so high-speed perimeter printing (beyond 90mm/sec) is currently gated by better part cooling. (Extra small features, such as the smokestack on the classic Benchy model, should be printed around 30mm/sec.)

Updates:

• Oct 5, 2019 First pass at updating fan shroud.