Ultibots/Micro Extruder

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Micro Extruder

Release status: working

Me v5.jpg
Description Micro Extruder for PG35L motors.
License CC BY-SA 3.0
Author Brad Norman
Contributors
Based-on Extruder Variations
Categories Cold End, Extruders
CAD Models none
External Link Micro Extruder V5

Ultibots Store


Contents

Current Version - V5

Me v5.jpg

The Ultibots PG35L Micro Extruder V5 - For J-Head is the most recent version designed for short and long shaft PG35L-048 motors. This version has 2 integrated bearing to appose idler tension and minimize any shaft wobble. Also, this body has a snap-in slot for a J-Head hot end which eliminates the aluminum slot plate. This Micro Extruder has been tested on MendelMax and Prusa.

Visit Ultibots for Hobbed Drive Gears and Bearings. MendelMax Kits, Printed Parts, Filament, Electronics, and More...

Advantages

  • Reliable
  • Light weight
  • Allows higher X axis speeds
  • Reduces skipped steps
  • Inexpensive

Disadvantages

  • PG35L & Drive Gear wear with months of daily use and need to be replaced
  • Motor torque needs precise tweeking with Pololu type motor drivers

Parts List

  • PG35L-048 Motor (x1)
  • Drive Gear (x1)
  • M3x30 bolts and M3 jam nuts for the idler (x2)
  • M3x25 bolts and M3 jam nuts for the motor mount (x2)
  • 624ZZ bearings for internal body (x2)
  • 624ZZ bearings for idler (x1)
  • M4x20 bolts and M4 jam nuts for the idler bearing (x1)
  • M4 washers either side of idler bearing (x2)
  • M4-20 bolts and M4 jam nuts for the internal bearings (x2)
  • M4-10 bolts and M4 jam nuts to secure to x-carriage (x2)
  • M4 washers either side of internal bearings (x4)

Weights

Component Weight Notes
PG35L-048 116.2 grams
Micro Extruder V5 26.5 grams Just Body & Idler
Drive Gear 8.5 grams 3mm
V5 Hardware 31.2 grams
Heat Sink 9.0 grams

Related Links

  1. PG35L Motor Cooler Fan Duct
  2. PG35L Heat Sink Fan Duct
  3. PG35L extruder for Kossel
  4. Cam idler pusher for V5 micro extruder
  5. slim lm10uu Micro extruder X carraige

Revision History

Micro Extruder V4

Me v4.jpg

Summary: Version 4 is designed for short shaft PG35L-048 motors (8mm). This version has integrated bearing to appose idler tension. Use of the external bearing is no longer needed. Also, this body has a snap-in slot for a J-Head hot end which eliminates the aluminum slot plate. The snap-in idea was derived from scottmayson. This Micro Extruder has been tested on MendelMax and Prusa..

Advantages

  • Works with Short and Long shaft PG35Ls
  • Shaft flex was further reduced with an internal bearing
  • Bearing strap no longer needed
  • No "groove" mount needed

Disadvantages

  • Has minimal shaft flex

Source PG35L Micro Extruder V4 - For J-Head

Micro Extruder V3

Me v3.JPG

Summary: This version has integrated bearing to appose idler tension. Use of the external bearing is no longer needed. The body has a snap-in slot for a J-Head hot end which eliminates the aluminum "groove" mount. The snap-in idea was derived Tinkey Struder by Scott Mayson.

Advantages

  • Shaft flex was further reduced with an internal bearing
  • Bearing strap no longer needed
  • No "groove" mount needed

Disadvantages

  • Will not work with short shaft PG35Ls

Source PG35L Micro Extruder V3 - For J-Head

Micro Extruder V2

Me v2.jpg

Summary: This version has an internal bearing to appose idler tension. Use of the external bearing is no longer needed..

Advantages

  • Shaft flex was further reduced with an internal bearing
  • Bearing strap no longer needed

Disadvantages

  • Will not work with short shaft PG35Ls

Source PG35L Micro Extruder V2 - For J-Head

Micro Extruder V1

Me v1.JPG

Summary: Our First Micro Extruder that was derived from the Trinity Labs TrinityLabs Micro Extruder 1.0.

Advantages

  • The body is stronger and has M3 nut slots that doesn't penetrate the entire body.
  • Shaft flex was reduced

Disadvantages

  • Still required bearing strap

Source PG35L Micro Extruder V1 - For J-Head