Centering Servos using a digital pitch gauge.
First of all, I am a newbie.
But I think I found a neat trick for using my digital pitch gauge to help set up my servos to exactly 90 degrees.
1) Hold the DPG (digital pitch gauge) up against the side of the servo body.
2) Zero the DPG. Aligning it with the servo's body.
3) Now line up the appropriate edge of the DPG with the centerline of the servo arm. The reading shows you how close you are to a perfect 90.
Here's another trick to help make this work.
a) I stuck the tips of two toothpicks (the round kind) through a couple of well separated holes in the servo arm.
b) Next, I laid the shaft of a long hex driver against the toothpick tips. In this way the hex driver' shaft acted like an 'extension' of the centerline of the servo arm.
c) And I was then able to rest the DPG on on the hex driver's shaft.
Though I must admit, my DPG has a magnet, allowing it to cling to the hex driver shaft, making this much less awkward than it sounds.
d) Finally, remove the toothpick tips, and then put the link ball onto your servo arm.
Maybe this has been done before?
Maybe I'm just making mountains out of molehills.
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