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Reindeer type motor with more torque

5918 Views 26 Replies 5 Participants Last post by  Bosco P. Soultrane
I am building a stirring witch prop like the one here https://www.youtube.com/watch?v=lbwsIYIkPdI. I have a reindeer motor but it's not strong enough to move the head. The head is a mask with a Styrofoam mannequin head inside. any suggestions on a different motor that will mount to the pvc frame and have more torque than the reindeer motor?
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Try using a spring or a counter weight to put less load on the motor.
Yep, agree with Diabolik, pictures are worth a thousand words.
The lower you can mount the motor and the lower you can connect the linkage to the vertical head pipe, the more leverage the motor will have. You may have to give up a little movement to compensate for the weight of the head. You could also try adding a bit of lead weight to the bottom of the vertical pipe as counter weight.
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Try attaching the linkage to the hurricane clip a little closer to the motor shaft. That will yield a little less head movement but will give the motor more leverage.
Okay, I will try that. You don't think there is anything wrong with the motor based on what I've explained.
Well, I'm not sure if your particular motor is supposed to reverse but you don't want that for this prop anyway. As for the head dropping quickly, that's a by product of the head being heavy and the slack within the motor, the linkage, and the head is pulling on the motor because it wants to drop. If you used cotter pins like the video, there's probably some slop in the linkage. Don't get me wrong, you obviously can go with a more powerful motor but I think you can get it working by doing a few things to lessen the force needed to raise the head.
Can you install one or two springs from the top back of the head to the horizontal pvc collar bones? It will take a bit of trial and error to get the right tension but that may take the load off the motor.
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I thought of that exact same thing last night. Tried it with a rubber band, because I don't have any springs and it didn't really help but I didn't mess with it that much. I will definitely try everything, because the wiper motors are much more expensive than the reindeer motors. If I do end up using a wiper motor, do have any suggestions on how to mount it to the pvc frame?
Yeah, a rubber band ain't gonna do much, you need a decent spring (or 2). The nice thing about using springs is that it doesn't add any weight to the prop, that pvc frame can only take so much.
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Success! I got it to work using a counter weight on the opposite side of the head. It's been running for about an hour with no problems.Thank you so much everyone for your help, I really appreciate it. Now I just need to find some Witch hands. The ones I got from Death Studios are too big. Anyone know where I could find some?
That's good news!
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