Circuit Board Cooler for Early UM3 (doesn't fit recent models)

By Larry56

27
2
Free
It's free to download
Main Image
Preview Image Preview Image Preview Image Preview Image Preview Image Preview Image

Information

Circuit Board Cooler for Early UM3 (doesn't fit recent models)

By Larry56

at 2021-07-16
I was getting errors when printing with Polycarbonate on a fully enclosed UM3 and determined it was a heat issue with the print head circuit board. This part replaces the back cable clamp on the print head on an Ultimaker 3. It attaches with the original screws. A side part cooling blower is used to force air over the circuit board maintaining the temperature about the board on a fully enclosed UM3 near what it is on a fully open UM3. This prevents communication errors from the print head to the main controller. These errors usually look like "print core #2 (or 1) is taking to long to heat up". The errors also prevent the print from restarting after the print has been paused. Some Data: This program prints 4 identical parts. 2 in ABS, 2 in Polycarbonate. Printer open (no cover no door) T=0 32C T=7:00 (minutes) 51C (end ABS) T=11:00 57.6C (end Poly C) T=14:00 59.5C (end ABS) T=16:00 61.1C (end Poly C) T=32:00 65.8C (end ABS) T=49:00 64.8C (end Poly C) Printer fully enclosed (starting about 3 minutes from previous ... printer fully warmed up) T=0 53.7C T=12 76.6C (end Poly C) T=40 86.0C (end Poly C) T=42:30 84.9C (end ABS) T=46:30 85.8C (end Poly C) T=50:00 85.3C (end Poly C) Printer fully enclosed using fan setting on printer (had to reset fan speed every 30s or so) T=10:00 71C fan on 50% T=11:00 65.2C fan off (the fan kept going back to zero) T=21:00 fan on 75% T=23:00 73.0C (end Poly C) T=25:00 74.9C (end Poly C) fan on 100% T=31:00 71.4C Printer fully enclosed, Circuit Board cooling fan on 75% in program from start T=15:00 64.6C T=45:00 66.0C
6 objects 24 Followers
Joined over 8 years ago

You_

a MyMiniFactory company
© 2024 YouMagine. All rights reserved.  2 Berners Road, Islington, London, N1 0PW, United Kingdom