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Author Topic: making a robot  (Read 8646 times)

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Offline airman00

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Re: making a robot
« Reply #30 on: February 21, 2008, 10:28:40 PM »
On your servo put one of these gears

http://www.servocity.com/html/servo_mount_gears.html

Then have that gear spin whatever other gear you want
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Offline boyardee12Topic starter

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Re: making a robot
« Reply #31 on: February 21, 2008, 11:59:32 PM »
I wish there was a robotics store near me so i could just test gears out and than buy the one that works best...

One last thing and ill can start putting everything together
here the tilting base:




I got it a home deport its suppose to be part of a heat duct  i think. Its not very sturdy too if i use alot of force i probably could bend it in half.  I may have to find something else because its 30 cm long and at the beginning of the competition a 30x30x30 cm box has to be place over it to see if it meets the length width and height requirement. The box might not able go over it. I''m trying to think of an alternative that's  less than 30 cm and stronger.


Now my original thought was to mount a gear right here than have a some kind of stick running through the gear hole to the other side for support and have a gear on the servo to turn the gear mounted on the base. However you suggestion was to just use the servo... so the servo would be attached to one side wouldn't the other side need some kind of support since i am removing the bar between the sides. Although,  I could see it work if i wasn't tilting 5lbs and their distance wasn't 30 cm away.
« Last Edit: February 22, 2008, 02:02:09 AM by boyardee12 »

Offline boyardee12Topic starter

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Re: making a robot
« Reply #32 on: February 22, 2008, 01:33:49 AM »
Wow! i just brought 3 gears and a gear to mount to my servo and total with shipping was 40$..... still need to buy 2 servos that are ~40$ each... i might have to look into cheaper servo that could handle the load.

I hope everything works out alright cause it would be a big waste of money
« Last Edit: February 22, 2008, 01:39:27 AM by boyardee12 »

Offline airman00

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Re: making a robot
« Reply #33 on: February 22, 2008, 08:26:23 AM »
why do you need two more 40 dollar servos?

and did you check eBay?
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Offline Trumpkin

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Re: making a robot
« Reply #34 on: February 22, 2008, 10:55:44 AM »
i'm not sure what kind of torque you need but GWS has 100 oz-in servos for $14. you can find them here http://www.pololu.com/catalog/product/507
Robots are awesome!

Offline boyardee12Topic starter

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Re: making a robot
« Reply #35 on: February 22, 2008, 03:04:22 PM »
i actually didn't buy  any servos yet. I was last time at a rc plane hobby shop but they didn't have any gears.. ill check eBay and those Gws servos.

 


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