Changes to Step #10
Step Lines
| + | [title] Install and adjust stepper drivers |
|---|---|
| + | [* 9] Adjusting drivers with power on - or even a large static charge from a metal tool - can kill them. Never turn the voltage dial with power on. Never plug/unplug motors with power on. Never plug/unplug drivers with power on. |
| + | [* 4] With power off, install the drivers on the X and Y axis of the RUMBA board. Note the voltage dial at the south side. Installing a driver upside-down will kill the driver. |
| + | [* 1] Connect power to the robot, and get a multimeter. Turn the multimeter dial to 20v resistance. |
| + | [* 2] Put the red lead of the multimeter on the dial in the bottom center of the driver. |
| + | [* 6] Put the black lead on the bottom right pin of the driver. The target value is ***0.17*** |
| + | [* 10] Very small changes (5-10 degrees) are all that are needed to make big changes to the target value. a plastic flathead screwdriver works great. |
| + | [* 1] Turn power off, adjust the dial, turn power on, measure the value, repeat until within +/-0.05 of target. |
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