I'm looking at some very small n20 DC motors for use of holiday decorations and making small props come to life.
The goal is to be able to seal the motor enclosures so they're weather proof. Casings will be 3D printed and made as small as possible (with safe spacing being the limitations)
I was wondering how much space the motors need to "breathe". Only the shafts will be exposed.
Are there specific guidelines that should be followed when placing motors near plastic for proper thermal dissipation? Plastic used is polypropylene.
Brushed motor specs:
2.7-4.2V power range from a single 3.7V 18650
125mA load current
500mA stall current
Potential problems :
How far should the motor be away from the walls of the enclosure? The N20 brackets available lay ontop of the motor so I'm not sure if that is even an issue
Same issue regarding spacing. I'm looking to put these in a very small enclosure.
Dust build up from brushes
How would I deal with this issue in a sealed setting? There will be a ton of small motor enclosures so won't feasible to open and clean them all out.
The only solution I have currently is to ensure everything is properly spaced. But what would be considered proper spacing?