3 Axis CNC router

[Kitwn]

This video is also useful for those trying to square up x and y. Simple and effective method if you have limited measuring equipment like me!


https://youtu.be/lU0iZKajpoo

And me!

I think most people recommend you mark a square rather than a triangle and check if the diagonals are equal in length. I recently did this by using a 22.5 degree engraving bit to mark the corners with 1mm deep holes on the spoil board and then improvised a large pair of compasses (dividers?) by using a small pair clamped into one end of a piece of wood with a panel pin nailed through it at the other. I don't have a picture at present but can add one later if anybody's interested. I recon this will show up smaller errors than the CNCnutz method and is less prone to setup errors since you are comparing the similarity of two distances rather than trying to make absolute measurements of three.

Re the other CNCnutz video you referenced: It's a pity Peter trammed his spindle before having the chance to see my 'taut wires' thread a couple of weeks ago. His machine could use that method as the rails are above the base.