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Question #: 2389

Question: blueChick v4.2. The #25 drive sprockets occasionally come loose especially on the y-axis. The screws are barely on the shaft when I line up the sprocket to the idler gears. Lots of Loctite or should I try the #40 drive sprocket?

Current Solution

The rods where the drive sprockets are located (typically the X-axis) are not flat enough, so that the set screws hold the rod securely. Taking a file tool to make the surface where the set screws can hold the rod in place a bit flatter.
On the Y-axis, make sure you have the idler sprocket in the correct place being dual nuts on top corner (away from the motor (http://buildyourcnc.com/Item/cnc-machine-bluechick-v4#prettyPhoto/1/) and (https://www.buildyourcnc.com/images/bluechick%204-3%20instructions%2013_700_sm.jpg)) to have the sprockets line up perfectly.

The #40 drive sprocket will not work with the #25 chain sent with the kit.


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