I want to add a second print fan to my mini. I’m having issues with PLA curling and I’ve had some better results with additional cooling, but it’s largely by having a desk fan blowing across the printer while printing. This is suboptimal because it also cools down the hot end and bed.
I printed a fan shroud and have a fan for it, but what’s left is wiring and this is where I’d like to get some suggestions.
Soldering isn’t a strong point for me, but it seems like it would be easy enough to snip, splice and solder the new fan in parallel with the existing one. Then use some shrink tubing to clean up the join.
But I understand I could also run it all the way back to the board and basically just crimp a new connector. I’d still have to do some soldering to connect the fans to the new leads, but it feels “cleaner” – but also a lot more work given that I’d have to disassemble and clean up the wiring harness to/from the hot end.
Has anyone added a second fan and have any tips on the best approach - along with at what point this sort of thing would run afoul of the basic warranty?