Content in “motors”

Line follower "GOOFY"

GuntisK — Sun, 21 Dec 2008 16:30:05 -0500

This is my very first line following robot that is built around ATMEGA8. Construction and circuit are quite simple. Such a name- GOOFY is given because robot movements are somewhat clumsy. But hey! Its still working and doing his job very well! :)

There is two geared DC motors that are controlled using PWM. Tyres are the ones that are used in RC cars. Besides-these have a nifty looking.

Are RC toys a good source for servos/motors?

Keepvogel — Sat, 06 Dec 2008 10:38:48 -0500

I was wondering whether RC toys are a good source for components. I came across a RC plane with two motors and two servos that only costs €25. This seems like a very good deal to me, or would this be a bad idea?

What are your experiences with demolishing toys for the greater good, or do you have an alternative cheap source of components?

Solarbotics motor question

gsandaya — Wed, 19 Nov 2008 14:24:12 -0500

My robot is going to compete in a competition that will require it to compete in different competitions. For one competition, it has to be very efficient, and basically keep following a black line longer than everyone else. Another competition that it has to compete in is a tug of war. The rule is, it cannot change its hardware in between competitions. Naturally, for the endurance competition, you want to hook up a smaller voltage to the motor. But I was thinking of using the following circuit in order to give the motor more voltage for the tug of war competition:

2 Wheel Drift

macdonag — Tue, 14 Oct 2008 19:48:25 -0400

I have a 2 wheeled robot - 2 GM10's with little thin wheels. I've hooked them up to an arduino with an L293. I have it going forwards, backwards & turning well enough. The problem is when going forward, it seems to drift to the right slightly. Any suggestions as to what the problem might be? Do I need wider wheels? A proper castor? (ATM, the front of the chassis rests on the ground).

Basically, what I'm asking is, with 2 small motors and thin wheels, can I expect a bot to go in a perfectly straight line?

Thanks!

robotmarketplace.com

Setix — Mon, 06 Oct 2008 15:59:25 -0400

Good place for pre built components, some stuff is priced pretty high since its usually for battle bots

Motors

robodaddy — Sun, 24 Aug 2008 01:34:58 -0400

How do you choose motors for something like http://letsmakerobots.com/node/87 ?

I've bought two motors (no gearbox, just motors), hooked them up and expected it all to be a little bit "nervous". However, they can't move even that little thing, only can spin in the air.

So... what would you guys recommend? Could anybody just give a little explanation, like "Motors FAQ for dummies"?

Thanks!

BGMicro

Ed — Sun, 13 Jul 2008 16:33:12 -0400

"Hobby Electronics and Parts" - lots of quality surplus parts for very low prices.

Why is your robots motors not strong enough? (Gearing)

fritsl — Thu, 05 Jun 2008 13:36:30 -0400

Have you ever made a robot that ran fine when you held it, but when you put it on the floor it moved really slow (or not al all)?

Hmm… Did you use a motor without a gear? Well, there is your answer.

This may make sense to many, if so you should find something interesting. But if you never had the “aha” experience, here’s some help:

I often see people making their first robot and think "Hey, motors - I do not need to buy those special ones, I have some right here", and some how the thing does not work!

My pololu controller came !!!

mattmitch — Thu, 01 May 2008 19:34:54 -0400

Sweetness my pololu controller came,(Dang that thing is small :)

I just finnished my SAT test (I am home schooled so that means no more school untill september!! :),

and I just got a summer job, this week is so awesome !!!!! :P

so here comes the hard part, coding :)

~Matt