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Heres my robot arm which gets a perfect score quite consistently (12 pennies 8cm circle, 38 16 cm circle and 10 pt bonus):

https://www.youtube.com/watch?v=27ws5wOY57g

Here is a video of my 2016-2017 robot arm with which i was able to get a perfect score fairly consistently:

https://www.youtube.com/watch?v=27ws5wOY57g

Enjoy!

Make your vehicle heavier Making the vehicle heavier will not help because your maximum acceleration and decelleration depends only on the traction between the wheels and the floor, the mass of the car cancels out (a(max)= F/m=mgu/m=gu, where u is the friction coefficient) The only way to reduce sk...

What are some effective ways to reduce skidding? We have tried balloons around the wheels, friction tape, and electrical tape, all with no avail. Make your vehicle heavier Making the vehicle heavier will not help because your maximum acceleration and decelleration depends only on the traction betwe...

How did you attach the bearing block to the caliper? Epoxy and metal clips. There was no cleaner way to do it since you can't drill into a hardened steel caliper :'( Thanks. Also, what kind of gears did you use between the encoder and the axle? They look really fancy. That is a metal bevel gear and...

I am using a servo from an rc car for the steering of my EV but it seems that a change of just 1 degree in my Arduino program is enough to change the car from swerving to the left to the right. Are there any tips for controlling the direction of the EV using rc steering servos? Don't, servos are si...

I am using a servo from an rc car for the steering of my EV but it seems that a change of just 1 degree in my Arduino program is enough to change the car from swerving to the left to the right. Are there any tips for controlling the direction of the EV using rc steering servos? Don't, servos are si...

Here is my Electric Vehicle as well as the steering mechanism I used: https://www.youtube.com/watch?v=pKC8MYRgflI&feature=youtu.be I highly recommend using the caliper steering method as it has worked very well for me and others that have used it, with the top 3 vehicles at MIT invitationals us...

Aha, I noticed your car at impound and was impressed with the design, still surprised the mount beat you guys in that event. We used the exact same motor lol, but I wish I could have thought of something like that caliper steering sooner. oh well ¯\_(ツ)_/¯ . Yeah, we had an issue at the competition...

Here is my vehicle from this year which is able to consistently score around -14 to -15:

https://www.youtube.com/watch?v=pKC8MYR ... e=youtu.be