uArm Serial No.: C8FD1940105B
Firmware Version: 4.3.2
Operation System: Win 10
uArm Controlling Method: uArm Studio 1.1.22
uArmCore Version 1.0.1
We’re experimenting with a uArm Swift Pro and are having serious issues with the motors making a very VERY loud drilling sound. That’s not an exaggeration, it sounds like someone has a large hammer drill.
We have the uarm mounted on a square base that raises its position above a flat table approximately 12cm.
The steps to reproduce this are:
uarm is off
uarm is sitting on its raised platform.
uarm is in a resting position from gravity. The end of the arm is below the uarm’s base (the target position would be negative Z value)
Turn the arm on
Launch uArm Studio
Click the “Control” tab/page.
Immediate hammer drill sound
We also encounter this by sending commands ourselves through the serial connection.
We’ve also found a way to prevent it from happening. If we physically move the uarm while it is off into a different position, then turn it on, it seems to be fine.
If we do not do the above and turn it on in the resting position below its base, it will sound like a very loud hammer drill. We are sending it valid commands, and this is reproducible by using the uarm app “Control” page.