Cooling Fan Bracket and Shroud for Ecksbot 3D Printer

by autom8it, published

Cooling Fan Bracket and Shroud for Ecksbot 3D Printer by autom8it Mar 7, 2013
0 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps


Liked By

View All

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

Thing Statistics

6891Views 1405Downloads Found in 3D Printer Accessories


This is a way to mount a 40 mm CPU cooling fan to your Ecksbot so that it blows cool air directly on the part being printed. This helps when printing small parts or tall thin parts, but can also help with larger parts if you're seeing any pebbling around the edges.


  1. 1. Select a 40 mm cooling fan from your junk drawer, or online, or at a computer store. Mine measured about 50 mm across, and the holes are 40 mm apart on each side.
  2. 2. Print out the bracket, and test-fit the fan. You will need screws and nuts to mount it. There isn't a lot of clearance between the center of the screw holes and where the outside of the shroud sits, so use screws with small heads.
  3. 3. Print out the shroud
  4. 4. Remove the filament from your extruder, then pull the bottom plate off (the hot end). The bracket clips around the right front bearing, much like how the extruder fan mount clips onto the back left bearing.
  5. 5. Re-attach the extruder hot-end plate.
  6. 6. Mount the 40 mm cooling fan to the bracket.
  7. 7. Wire the cooling fan into where the existing Ecksbot extruder fan is wired into at the top of the printer. I suggest disconnecting the existing fan from there and wiring it directly to 12V so that it runs all the time. You want the board to be able to control the new fan.
  8. 8. The fan shroud should be press-fit into the bottom of the fan bracket. It's a tight fit on mine, but each printer's tolerances are different. If yours doesn't give you a tight fit, then use superglue or ABS glue. I meant for it to be glued. The shroud should point directly towards the hot end, and should be angled down so that when you home the Z axis, the bottom of the fan shroud only sits about 0.5 mm above the surface. It'll likely be a tiny bit too high if you seat the shroud all the way, so you might want to angle it down a very small amount. If it's a good press fit, then you can use a screwdriver to lever the end down a bit.
  9. 9. Turn the fan on to 50% before you heat up the hot end and keep it on even after your print is done. I added a "M106 S255; fan on full" g-code command at the end of my prints to make sure it stays on. Enable the cooling option in Slic3r (or the cool plugin in Skeinforge?). I find I'm getting best results if I run the fan at about 50% speed all the time, no matter what size of print I'm doing. I also increased the extruder temperature (5 to 10 degrees) and decreased the bed temperature, as long as you don't get adhesion issues. A hotter bed gives you adhesion, but gives you more uneven shrinking in the X/Y direction, I find.

More from 3D Printer Accessories

view more

All Apps

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Print through a distributed network of 3D printing enthusiasts from across the US, at a fraction of the cost of the competitors. We want to change the world for the better through technology, an...

App Info Launch App

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App

3D Print a wide range of designs with Treatstock. Easy to use tools to get the perfect result. The global 3D printing network that connects you with high-quality and fast working print services nea...

App Info Launch App

Just a heads up, you need to correct the info on this, what people need is a 50mm fan, not a 40mm like you state in the info and instructions.

Yes, I think I mentioned in the instructions (step 1) that the fan has 50 mm outside dimensions, and 40 mm hole-to-hole dimensions, just for clarification. It seemed like if you wanted to order a fan, you generally went by the mounting hole dimension, but I realize that's not always the case.

Hey no worries, but it is a bit misleading. when you go to the store and purchase a "40mm fan" you get a 40mm outside dimension fan. It's just that the info is misleading at first glance.

Just for say Thank's ;)

Which version of he x-carriage did you use? Nice work !

Looks to me like it clips to one of the liner bearings.

so basically the fan bracket rides on the smooth rods?

Looks to me like it clips around one of the liner bearings.

Yes, it clips around the right front bearing, similar to how the other fan bracket on the back clips to the back left bearing.