| The Shop > Electronics & IC Programing |
| Micro 10-30rpm motor suggestions? |
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| raynerd:
Hi guys, I'm looking for a motor for my current project but know very little about them and would appreciate your thoughts and suggestions. I can run from mains voltage, so supply isn't too much of a consideration in that I could use a Dc power supply to run a 12v motor (which I expect it will be) or anything else. The main factors are: Slow rpm - 10-30rpm ish. Run continuously for up to 1-2 hours. Quiet... This is for a home display so it must be quiet! Small - but I understand what is small? Ultimately this is going to be fitted under a circular base, approx 250mm diameter. Whatever the motor height is will raise the base. So the smaller the better to fit under a 25cm dial base. Any help appreciated. |
| joshagrady:
The datum you've forgotten is the torque required. This is for the Orrery project, right? I need to check the measurements this evening, but I think I have one in the junk stuff for future projects crate that I could send you. I'll get back to you this evening. |
| DMIOM:
Maybe a pancake stepper + cheap driver + 555 to allow speed control? (pancake steppers can be < 1/2" thick). Dave |
| mattinker:
How about an oven rotisserie motor? Regards, Matthew. |
| raynerd:
--- Quote from: joshagrady on March 30, 2016, 06:05:45 AM ---The datum you've forgotten is the torque required. This is for the Orrery project, right? I need to check the measurements this evening, but I think I have one in the junk stuff for future projects crate that I could send you. I'll get back to you this evening. --- End quote --- Yes, it's a great point and I can't give you a figure. Yes it is for the orrery and with everything running on bearings it should take a very very light finger push to move it around. I'd definitely be interested. --- Quote from: DMIOM on March 30, 2016, 07:30:51 AM ---Maybe a pancake stepper + cheap driver + 555 to allow speed control? (pancake steppers can be < 1/2" thick). Dave --- End quote --- Never heard of a pancake stepper but also sounds a plan. Would it be noisy? |
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