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Tips for mounting FTC Wheels on Drive Trains

Mounting Wheels on the Robot

If you are trying to figure out how you should mount wheels on your robot for the very first time, you should check out the First Tech Challenge video tutorial on How to Mount Motors & Wheels.

We wanted to add a few more tips from our experience on how to make sure that your wheels are rock solid on your robot. We frequently find that as the robots go through the qualifying rounds they get banged up during the matches. Often in crucial elimination rounds, the wheels come off or something goes wrong with the drive train at the worst possible moment.

Tips for Ensuring that your Wheels are Rock Solid

Here are four tips to ensure that your wheels are mounted correctly on your robot.

  1. Don’t connect your wheel axles directly to the motor: We always find that it’s better to connect the motor to the wheels through a gear train or a chain system. This gives us the flexibility of gearing down the drive train as required. For heavier robots, this can also reduce the strain on the gearbox within the motor.
  2. Bigger Wheel Axles: As the season goes on, we find that sometimes the wheel axles start bending under the load of the robot. We like to use thicker 6mm axles for the wheels to prevent this from happening.
  3. Using Low Strength Loctite: Set screws tend to loosen when robots get hit during competitions. Using low strength thread locker Loctite helps to lock the set screws in place and prevent them from coming loose from heavy impact on the robot. Be careful with which Loctite you use as you may have a tough time getting the set screw off if you use a high strength version.
  4. Aligning the Set Screws: Having the set screws flush on the flat part of the axle is critical for the assembly of the wheel. One technique we often use is making sure that the first set screw is properly aligned flush to the flat part of the axle. Then, the remaining set screws on the assembly can be easily lined up with the flat part of the axle by just looking at the position of the first set screw.

Here is a video showing all of the above tips:

Parts and Tools Used in this Tutorial

Here are links to some of the items on Amazon.com and Servocity:


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