MPCN 25mm Tube 90deg Calibrator Jig

I Decided to make this tool to help set everything at 90deg before a cutting session. My MPCNC was a little "off square" so this tool help bring it all back in line again before a print. Use 4 x of these to correct both axis them power up steppers to lock it all in place, step forward a little on each axis then release ready to cut. Hope it helps someone out there.