Anything wrong with this robot or no?


Here’s our robot so far. Anything wrong yet?

  • Yes
  • No
  • I have no idea

0 voters

Yes. You should first, add drive motors and attach them to the brain with wires. Then, make all four wheels omni-wheels (if you do make two wheels traction wheels, you have to really know what you are doing and have good reason for it). But for Rise Above, I think it might be valid maybe… This is just my opinion, so feel free to say something else.


Ok thanks! Were actually doing the razor bill with lots of modifications so its helpful to get advice from someone who created the razor bill! Thanks again!


These are some of my tips, no obligation. If you are building a Razorbill-like robot, then I’d highly suggest four omni-wheels. Your drivetrain looks pretty solid though (more than I can say for some bots). Also, I like your battery replacement system, but be careful as an upside down battery is subject to fall out when driving a match, especially over the goals. An additional tip, use 6+ rubber bands (we use 10). Overall an awesome robot so far, and I can’t wait to see how it performs!


Yep im working on the rubber band part right now

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I would switch oout you sprockets on the wheels out for the second smallest ones. this will make the rbot much faster. also add a brace on the top sprocket. again like @FRC973 said these are just suggestions but i think it would be very beneficial.


Ok thanks a lot! 20 char



Does it just go straight up if it’s not being powered? I mean, that’s insane!!!


I could see how that could seem insane, but try it, and you will see what I mean.

Our goal is to put the least amount of force on the motors as possible. It stays pretty much wherever you put it (top, bottom, etc.), so it takes equal force to make it go down and up. This way, you can practice for a long time without heating up your motors.

A motor on the end of a 4-bar is heavy. The longer the 4-bar, the more rubber bands.

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Full disclosure, we have built this design.

And with 1x beams instead 2x beams for the four bar, we have found even 3 rubber bands to be excessive! Wow!


We didn’t use 1x beams purely because we didn’t have them. I don’t know how much they reduce weight, but I presume that it is a lot. Do you have a video of your robot (if you’re willing to share)? I’d love to see it. I’ll have to experiment with more different numbers of rubber bands. Good luck.