I think you're seeing a problem where there isn't one. The argument you made could also be made no matter how the watch moves. The watch will wind if moved in the way I want to move it. All the evidence I need is that one of the top companies who makes watch winders uses this sort of mechanism...
Yes, that would also work, but I like the idea of the watch oscillating back and forth - it only requires the motor to make one full revolution in order to get a lot of watch movement. With a stepper motor there really wouldn't be much difficulty in programming the movement.
The main issue I'm...
The "disc" is actually going to be a piece of PVC pipe cut to about 4" long. I'll insert a piece of acrylic cut to fit the ID of the pipe and then glue the acrylic inside the the back of the pipe. The other end of the pipe is open, and I will fill it with a piece of high density foam with a...
I see. Let me preface this next bit by saying that I have access to a laser cutter, so I can cut the acrylic pretty accurately.
Let's say that I cut a hole/fitting into the acrylic disc and inset http://www.vxb.com/626RS-Bearing-6x19x6-Sealed-Miniature-p/kit7465_1.htm. How do I attach the...
Ah, I see now. If I want this thing to last a long time, should I look for something more robust to allow the pendulum to rotate? For example, some sort of bearing set that attaches to the motor shaft and that I can inset in the disk? My gut says that if I just drill a hole in the acrylic disc...
Thanks for your post. I'm familiar with freewheels as you've mentioned (I've built a few bicycles) but I've never seen anything small enough to work with a tiny DC motor, and I can't seem to find anything via google. Can you link to a product that you're thinking of?
For what it's worth, I...
Thanks for your reply. The radius of the disc is about 2". The mass of the disc is about 500g. I could use gearing, but I figured it would be easier if the gearing was built into the motor, which, I believe, is how these high torque motors work.
What do you mean when you say "disengage the...
Hello forum.
I'm looking for a DC motor for a little project. I don't have a lot of experience with different types of motors, though I'm fairly confident I don't want a servo motor or a stepper motor. I have a disk of non-uniform weight distribution. I want to mount the disk vertically (motor...