Trouble-shooting Low Traction

[Labman]

Those interested in this type of testing may be interested in American Weigh Scales model PK-110. This small digital hanging-style scale can be set to record peak force pulling on the hook. It operates horizontally as well as vertically so it is easy to use to measure robot pulling power, as well as weighing parts, testing robotic arm lifting power, checking crimp pull-out strength and many other force measurements. The scale reports weights below 44 pounds to 0.02 pounds, and weights above 44 pounds to 0.1 pounds. I tested two scales against highly accurate lab scales and found that one was right on while the second averaged 0.1 pound too low. The scales cost about $45 and have held up well over a year. The only downside is their max capacity is 110 pounds, so we use two in tandem to measure larger weights/forces.

[GeeTwo]

Originally Posted by Labman

hanging-style scale

In addition to our digital flat scale, we have four old-school fish-weighing scales from the sporting goods store. We have four so that we can hang a robot by the axles of the four corner wheels, and figure out where the CoG is (we did Mecanum in 2014, and H/slide in 2015). Not as elegant as the digital peak-recording variety, but they've met our needs.