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Unread 23-01-2017, 23:13
Retired Starman Retired Starman is offline
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Re: Robot Scale Recommendation?

A couple of thoughts.

1. Your local veterinarian most certainly has a platform scale. While you wouldn't want to do it often, once you get close to your local robot configuration, haul it over to your vet to weigh. Be sure to count the vet's office as a sponsor!

2. Any scale needs calibration. FIRST does it at events with a set of four 25 lb. weights. You can do the same by going to Walmart (one with a grocery store) and buying four 25 lb. exercise barbells. While there, take them to the meat department. They will have a scale that has been calibrated by some agency of your state's government. This is done often and the scale the meat department uses is quite accurate. Weigh each barbell and mark it on the barbell. Now you have a very accurate set of calibration weights.

A lot of trouble, but you only need to do it once. Then you can use most any scale configuration you come up with.

3. We always encourage teams to maintain a weight budget. As parts are ready to add to the robot, weigh them and record the weight. This way a small scale can be used to weigh a robot, one part at a time. I know, "That's too much trouble."
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Chairman's Award is not about building the robot. Every team builds a robot.
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