Author Options:

Cell phone motor power? Answered

I have so many projects going on in my head that I am surprised there is room for anything else.  Heck I have plans for a Jacob's ladder, Tesla coil, perhaps a coil gun but who knows.  Well for quite some time I have also considered a vibe-bot or whatever you call them, the ones built with pager motors.  But since this is not too exciting to some people it is not something I have jumped on doing.  But I came up with a new twist today on the vibe-bot that I would like to try.  I do not want to give away too many details here because I would like to keep it a surprise if it works.  But I do see one possible problem with what I want to do and that is weight.  The parts I have already weigh in at 26 grams.  I am not sure how much the rest of the parts are going to weigh at the moment.  But I was wondering what you think the weight limit for a cell phone motor is.  I know that some cell phones can weigh a bit but I have no idea what the weight was for these cell phones since I did not have the scale at the time I tore them apart and would not have thought to weigh the phone anyways.  Thank you for your insight.


The very tiny motors have a weighted "ballast" that is off center thus the vibrations. They tend to be "fast and furious" brrrrrrrr, rather than thump thump thump :-) I would say it could move a fairly large amount of weight IF it is set atop a proper "stand". Thin wire "legs" for a vibro-bot or atop a tooth brush head are all previously used ideas that take full advantage of the vibrations given off. The best way to find out is to build it and see.....take notes and pictures however; even it if doesn't work the first time, you will probably be able to GET it to work and then you can publish it.

Yup, I do want to take pictures and so forth for publishing. However I have not seen hide nor hair of my camera in over a month and it is really making me mad. But if things go well with the first build then I will get my web cam working somehow and take pictures of a second build with that since I have enough parts to make at least two if this works.

By the way. I was thinking that if this bot does not move well I would add rubber feet to it it give it a better grip on the surface. Do you people think this would help the bot move better or possibly cause too much friction and hold it in place? Obviously I can experiment myself, but thought I would ask on here anyways. It is an idea I came up in bed last night while I was trying to fall asleep and was working on the design in my head.

I find the best time to think about things like this is either in the shower or in bed. The only problem with thinking about it in bed is trying to remember it the next day. Yes I know I could put a note pad next to the bed. However I have a hard enough time sleeping as it is so I am not going to do that.

Thank you for the reply by the way.

*chuckle* MY biggest problem with thinking about these things in bed, is it will keep me awake all night if I allow it too :-)

As for the rubber feet;  if it is a pager motor, I would think it would inhibit movement, rather then help.   The vibro bots tend to use long skinny legs, sometimes made of thin sturder wire.


vibroBot one.jpgvibroBot two.jpg

Dunno, but I guess you are counting on the motor to just shake or nudge the entire robot or part of the robot to get some motion out of the whole thing. The vibrator motor should just be an offset weight attached to the shaft. You really cannot attach anything else there without changing the amount of vibration you get from the motor. So the rest is in the design of the robot on how it is balanced and the stability of it and if the vibration can effect a motion on any of those parts.