Author Topic: servo--wheels??  (Read 13795 times)

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Offline alextanTopic starter

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servo--wheels??
« on: February 05, 2006, 10:47:10 AM »
how can i attach wheels to a servo motor without modification of both???
thanks, fresh man from malaysia.... :D
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Offline Admin

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Re: servo--wheels??
« Reply #1 on: February 05, 2006, 04:16:38 PM »
For servos, you MUST modify them if you want them to rotate more than 180 degrees (so you can have continuous motion)
Go here:
http://www.societyofrobots.com/actuators_modifyservo.shtml

As for mounting the wheels onto the servo, there are several ways:
http://www.societyofrobots.com/mechanics_chassisconstruction.shtml#wheels

However I personally recommend the method that screws those red servo horns into the wheels as it is the most reliable and very easy to do.
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Offline alextanTopic starter

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Re: servo--wheels??
« Reply #2 on: February 06, 2006, 09:31:24 AM »
i'm using continuius servo motor.....so do i need to modify it???
thanks for the mounting method :D
but it still need to drill the wheels...
are there any wheel that can mounting to servo without any modification???
such as use wheel hub??? :(
« Last Edit: February 06, 2006, 09:38:19 AM by alextan »
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Offline Admin

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Re: servo--wheels??
« Reply #3 on: February 06, 2006, 09:48:34 AM »
Well, when you purchase a servo new, it would not be capable of continuous rotation. But if it already can rotate continuously, then you do not need any further modification. It should be fine.

As for the wheel . . .
Unless you can find a wheel that is specifically designed for servos (let me know if you find any because I have not), you MUST drill into your wheel. You only need to drill 2 holes, can't be that hard. Measure and mark off the holes, and then just get a hand drill or a dremel. If you don't have one, I am sure a friend would. I used a table top drill press for nicely aligned holes, but it really does not require high accuracy at all. Shouldnt take more than 5-10 minutes per wheel.

My pictures showed two examples with two very different wheels.
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Offline alextanTopic starter

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Re: servo--wheels??
« Reply #4 on: February 06, 2006, 09:55:43 AM »
think its the only way...however thanks for your helps and advices. :D
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Offline dunk

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Re: servo--wheels??
« Reply #5 on: February 06, 2006, 04:29:53 PM »
i've seen a few wheels that mount straight onto a servo.
here's an example:
http://www.totalrobots.com/access_files/wheels.htm

dunk.
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Re: servo--wheels??
« Reply #6 on: February 06, 2006, 04:39:14 PM »
Ok I did a google search and found this:
http://www.kronosrobotics.com/an118/GAN118.shtml

It shows more pictures of my perferred method of mounting wheels, and it shows good images of the servo wheels that dunk found.

I havnt been able to find any other types though . . . I am actually surprised because I see a large demand in servo mount ready wheels . . . but almost none exist.
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Offline alextanTopic starter

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Re: servo--wheels??
« Reply #7 on: February 07, 2006, 06:49:56 AM »
wowww.....thanks a lot guys...
appreciate the web site u gave.....
really help me a lot...... :D :D
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