The new bot has two motors, the second is attached to the smaller wheel. Since it has a 2:1 gear ratio, the smaller wheel goes twice the speed.
The last trial runs were:
2.9 - 3.1 range
- There are no magnets other then the ones inside the motors :D
- There is ghetto wiring currently installed on the bot and there has not been any programming set on the controller yet.
- When the power is manually cut at the top of the pole, it slowly goes back down the pole.
- It is very picky of it's center of gravity. The bot will fall off the pole if a wheel is too far in.
- The wheels were shaved down to the shape of the pole, as well as adding grip to it.
Gallery:

Copyright 2011, Sachem Robotics
what about 2 wheels so they make a )( shape
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If I only had CAD at home. The wheels are in an arc shape on the tread. They were shaved down
ReplyDeleteHow did you deploy it from the main robot?
ReplyDeleteIs it not in the video? The deployment will be mounted to the robot.
ReplyDeleteokay thanks... wheres the video?
ReplyDelete.....Look up.....
ReplyDeleteIf it's not there, i'll post the youtube link instead - Some people may have the same issue.
We contemplated profiling the tire tread until we discovered that it could be removed. You can reinstall it inside out for a flatter, slightly concave shape. Not much imagination was required to get a more concave shape in this configuration.
ReplyDeleteOur way of getting a concave shape was to put the wheel on the drill press and have sandpaper around the pole :D
ReplyDeletehow did you program it... i cant seem to figure out how to do it with the nxt brick... do you have any special links or advice that you can give to a semi rookie... thisis ony my second year competing...i havnt reallyhad a chance to figure out how to do it...we did not get our minibot kit until 1/24/2011 so we only have like 3 weeks left of working and i have to show my teammates how to do it...
ReplyDeleteThe program we used is called RobotC.
ReplyDeletewhere did you get it... i cant find it
ReplyDeleteLmgtfy.com/?q=robotc
ReplyDeleteDO you have an email that i could contact you at i have a few questions about your minibot?
ReplyDeleteYEs I do: jcoinster@gmail.com
ReplyDeleteI'd be glad to help
On that teams webpage there is an acknowledgement for you guys:http://robots.jhhsbroncs.com/legal.html
ReplyDeleteOh how thoughtful.
ReplyDeletewhat is this whole thing?
ReplyDeleteIt's for the FIRST Robotics Competition. The goal is to deploy a mini robot at the end of the robotics match. It was quite a challenge.
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