Calibration moving one motor wrong direction in Ground Control V1.20

[madgrizzle]

@marlon61

I successfully measured the distance between the motors using the chain. I did this by measuring the distance between the two axles in MM and then extending the chain that much plus 1 inch (25.4 mm) – in my case this amount was 3040mm. Then I put the chain on then let the motor tighten it and the distance as measured by the motor was found to be 3014.1mm.

Did you use ground control to feed out the chain?

How To: Get Calibrated!

Step 5: Measuring Distance Between Motors [image] Out of all the steps, this one causes people the most problems… and it’s really not that hard. The first thing to do is to READ THE INSTRUCTIONS… ALL OF THEM Regardless of how you plan to deal with the slack of the chain (over-top feed or under-bottom feed), you will do the distance measurement just like shown: Place the first link of the left chain on the left sprocket as shown on the image on the left. Press the “Extend” button. The left…

That page gives step by step instructions.