Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5101148.
Updates2021-12-04 Released a dedicated 2 x 5015 version with better airflow: https://www.thingiverse.com/thing:5155154
2021-11-28 Added Adder v2. This new version has better placed fan mounting holes and increased airflow to the ducts. This does make the walls thinner, so if that is an issue when printing you can still use Adder v1
2021-11-28 Replaced the fan ducts with ones with better airflow
2021-11-28 Replaced the fan mounts with better side supports
2021-11-28 Added a slicer image to show recommended orientations for printing
2021-11-19 Added shorter versions of the v2 ducts for a higher than standard hotend
2021-11-19 Removed the v1 ducts as the v2 ones are much better
2021-11-15 Added v2 left and right ducts. These perform even better than the previous individual and multi duct.
DescriptionWhen you just need more cooling.
I put this together to help with printing on the Creality CR-6 SE with a 0.8mm nozzle and a high flow hotend. This has helped cool large PLA parts printing at high speed.
It has been tested up to 185C while printing PolyCarbonate (PC) filament.
The cover is designed to take a single 5010 fan, two 5010 fans or a single 4020 fan. It also has a removable duct assembly if you want to add your own duct designs, lower the duct height (e.g. for a Volcano hotend) or to replace an existing duct if it breaks or warps.
The main cover can be printed in PLA or PETG (and ABS or ASA of course) as it's not coming that close to a high heat source. I printed it in PLA as PETG is a bit too flexible. The ducts need to be printed in a heat tolerant filament, e.g. PLA HT (High Temp), ABS, ASA, PC, PA-CF.
Unlike other covers, you can still use the stock hotend LED (if you find the blue light useful).
The design caters for hotends with either a 3010 or a 4010/4020 heatsink cooling fan.
It has been tested on a stock hotend as well as a Phaetus Dragon Hotend (E3D v6 heater block).
The tolerances for the duct mounts are quite tight, so some sanding/filing might be necessary for a good fit and to avoid damage when fitting.
All the parts should be printed with supports touching build plate only at an orientation show in the image listed. The main cover is best printed upright as it strengthens the parts more likely to break off. The image does not show the needed supports.
If you opt for the dual 5015 fans you will need to splice or make a cable that splits the output from a single to a double JST-XH connector for both fans to connect to the single socket on the daughter board.
Note: When fitting, you need to screw on the cover to the printer before fitting the fan(s) so that you can access the left mounting screw.