Low mass gearExtruder
by dkennell, published
Use This Project
Give a Shout Out
If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.Print Thing Tag
An updated version can be found at http://www.thingiverse.com/thing:251227.
This is a robust, low mass extruder for 1.75 mm filament. It can be mounted to a vertical x axis with 70 mm spacing or can be mounted to a horizontal axis using the hot end mounting bolts. It is for the MakerGear hot end with the standard mounting pattern. The shaft is really milled rather than hobbed, which gives a much better "bite". It uses steel gears from Misumi which give a 5/1 gear ratio. The aluminum mounting plate acts as a heat sink, so fan cooling is unnecessary.
This extruder/carriage is about 1/2 the weight of the original on the Aluminum Mendel, allowing for faster prints and smoother operation.
Some weight comparisons to common extruders:
gearExtruder - 311g (11 oz)
Wade extruder - 549g (19.3 oz)
MakerGear 5 /1 - 457g (16.2 oz)
Minebea PG35L w/fan - 178g (6.3oz)
This project requires some metal working tools. I used my MicroMill to cut the aluminum back plate, hot end mounting plate, and the hobbed shaft. These can be done by hand if you are very careful. Print out the alumPlate Template and use it as a drill guide. I originally used a #4-40 tap to hob the shaft, but I had much better results milling the shaft. I will post a fixture for milling the shaft soon.
I recommend setting the retraction length to .5 mm and the retraction speed to 15 mm/s in Slic3r to avoid skipping steps on filament retraction at high print speeds.
Upgrade this Thing with Thingiverse AppsCustomization
Edit, personalize, or revise this ThingPrint Fulfilment
Order a print of this ThingTools and Utilities
Repair, slice, or enhance this Thing
Low mass gearExtruder by dkennell is licensed under the Creative Commons - Attribution license.
What does this mean?
- You must attribute (give credit) to the creator of this Thing.
- Remixing or Changing this Thing is allowed.
- Commercial use is allowed.
Show Some Love
Say thanks by giving dkennell a tip and help them continue to share amazing Things with the Thingiverse community.Tip Designer
We're sure dkennell would love to see what you've printed. Please document your print and share a Make with the community.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. It’s even easier to post a Make via the Thingiverse Mobile app (available via Google Play and Apple App Store).