Been a little while since I posted some 3D printed parts and new work. I have a cnc router that has been out of action for many months due to the controller blowing up. I finally got round to starting a new controller. Bought some really cheap 3A stepper drivers, we shall see how they turn out soon enough. I needed to mount them in something and was trying to figure out how best to install them, keep them cool and as free from dust as possible. After some doodling I came up with a design I liked.
The plan is to use x4 40mm fans. The final case will resemble an up turned L with the fans behind the main body of the controller carrying the breakout board and power supply. Air flow is directed forward at the top to try and stop dust recirculating.
All ducting printed in PLA, it would have been really handy to have had a cnc router at this point to make the mounting plate. Instead I had to measure each cutout and drill holes before using a jigsaw to cut between holes and complete the plate work.
I also printed the PCB mounting rails, a couple of small screws hold the ducting together and the whole thing is now pretty rigid.
Still lots of work to do, my current thinking is to use 3M double sided tape to mount the fans, they aren't going to get swapped regularly, I hope...
Too many jobs and not enough time