Cooling Section Upgrade Final.jpg
FA info icon.svgAngle down icon.svgDevice data
Manufacturing files
Hardware license CERN-OHL-S
Certifications Start OSHWA certification
FA info icon.svgAngle down icon.svgProject data
Authors Aubrey
Completed 2018
Made Yes
Replicated No
Cost USD 35.2
OKH Manifest Download

This project is an upgrade on the current Recyclebot v5.0 cooling section. The previous design uses a top-down approach at cooling off the filament post extrusion, this was rather annoying to initially feed the filament through. To get rid of that issue, I created a way for the fans to permanently mount to the bottom and have the air funneled to the filament via a 3D printed shroud. This solution makes it easier to initially feed the filament through, while still gently cooling off the filament and the aluminum trough itself. This project is Appropriate because it is part of a machine that can be built for less than $600 and make filament that is comparable to that bought from a supplier. This fulfils the need for people to make their own filament at home and reduce costs and waste. Currently the MOST research group and the Open Source Hardware Enterprise use Recyclebots to make their own filament for research purposes and this upgrade will make it easier for them to do so in the future.

Cooling Section Upgrade Final.jpg

Bill of Materials[edit | edit source]

FreeCAD files and STL Files can be found at:

Printed Parts ~ 150 grams of plastic - $3.75

  1. (4x) Cooling Trough Fan Shroud (Printed)
  2. (2x) Trough Holder Bottom (Printed)
  3. (2x) Trough Holder Top (Printed)
  4. (4x) 50mm DC Fans - $27.96 -
  5. (8x) M4X25mm Bolts - $0.90 -
  6. (4x) M3X16mm Bolts - $0.34 -
  7. (4x) M3 nuts - $0.03 -
  8. (1x) 1" Aluminum Trough - $2.59 -

Total Cost: $35.20

Tools needed[edit | edit source]

  1. MOST Delta RepRap or similar RepRap 3-D printer
  2. Allen Wrench (For M5 and M3 Bolts)
  3. Soldering Iron and Solder

Skills and knowledge needed[edit | edit source]

Technical Specifications and Assembly Instructions[edit | edit source]

  1. Print all parts ~ 5 hours
  2. Start Assembly ~ Should take about 10 minutes.
  3. Mount the fans with stickers facing the Fan Shroud printed parts with (2x) M4X25 bolts in each corner, thread into the plastic part.

Mount Fan to Shroud.jpg

  1. Slide Fan-Shroud Assembly onto the aluminum trough.
  2. Assemble the Trough Holders with (4x) M3X16mm bolts and (4x) M3 Nuts, (2x) for each holder.

Cooling Trough Holder.jpg

  1. Screw Trough Holders to Recyclebot frame, careful to align the fan shrouds where you want them. The trough holders can get in the way of sliding the fan shrouds back and forth.
  2. Place trough, with fans on it, on top of the trough holders that are screwed into the recyclebot frame.

Common Problems and Solutions[edit | edit source]

  • Make sure to align the fan shrouds to avoid the trough holders. The holders can get in the way of putting the shroud all the way on.

Holder Location.jpg

Cost savings[edit | edit source]

  1. Cost to build: $35.20
  2. Filabot Fan Cooling: $649.00 -
  3. Savings of $613.80 or 94%

Benefited Internet Communities[edit | edit source]

  • Filastruder Forum: [1]
  • Recyclebot v5: [2]
  • Filabot Forum: [3]
  • OSHE: [4]
  • MOST: [5]

Cooling on Recyclebot.jpg

Cooling on Open Source Hardware Enterprise Recyclebot

References[edit | edit source]

  • Woern, A.L.; McCaslin, J.R.; Pringle, A.M.; Pearce, J.M. RepRapable Recyclebot: Open source 3-D printable extruder for converting plastic to 3-D printing filament. HardwareX 2018, 4, e00026.

FA info icon.svgAngle down icon.svgPage data
Keywords 3d printing, cooling fans, filament extrusion, osat, recyclebot, recycling
SDG SDG09 Industry innovation and infrastructure, SDG12 Responsible consumption and production
Authors Aubrey
License CC-BY-SA-3.0
Organizations MY4777, MTU
Language English (en)
Translations Hungarian
Related 1 subpages, 4 pages link here
Impact 605 page views
Created December 4, 2018 by Aubrey
Modified February 28, 2024 by Felipe Schenone
Cookies help us deliver our services. By using our services, you agree to our use of cookies.