Hey! This thing is still a Work in Progress.
Files, instructions, and other stuff might change!
Mk7 replacement with cooling fan
6
Likes
272
Downloads
1482
Views
Published on October 15, 2012
Derived from
Minimalistic Mk7 replacement
by whosawhatsis
Description
After printing with ABS for a year, I decided to give PLA a try. The extruder nozzle clogged on almost every print, so I decided to attempt to add some additional cooling.
Instructions
Remove the thin support material on part 2 and mount a ball bearing with an inner diameter of 4mm. You may have to cut the screw that holds the bearing in place to avoid making contact with the stepper motor or heat sink.
Spring dimension is probably not critical. The spring I used is 8 mm in diameter and 35 mm long.
The fan is a standard PC power supply fan.
Spring dimension is probably not critical. The spring I used is 8 mm in diameter and 35 mm long.
The fan is a standard PC power supply fan.
You must be logged in to post a comment.
License
Mk7 replacement with cooling fan by hansj66 is licensed under the Attribution - Creative Commons license.
More from hansj66
More from 3D Printer Extruders
I love it! I've been tinkering with something similar after seeing the replicator 2's extruder at maker faire, and NYCC.
Thanks, but there are no guarantees :) I made it through a 6,5 hour print without any clogging yesterday, so I it looks promising so far.