This is a utility part to assist in perfect zeroing your X and Y axis on an AtomStack A5 M40.

You will need to do a couple of modifications to the laser chassis while installing this. See pictures for details of the steps below:

1. Move the belt retaining T-nut on the left side up to the 10 graduation printed on the extrusion
2. Fold the belt down if there is excess
3. Remove the axis end stop, this part will replace it, remove the two frame screws, align the part, and screw them back in
4. Verify that the zeroing is correct by pushing the laser module into the notch on the zeroing block

https://doslabelectronics.com/

 https://ko-fi.com/mrcbax