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Laser for positioning?

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@shelbycharged wrote:

I was thinking of ways to try and set x/y as accurately as possible when my work piece might move or change, etc. If I were to mark a crosshair on my bed, and attach a very low power laser to the side of my router mount, would it not work very nicely to repeatedly confirm/set my x/y? line up the crosshair laser with the marks on the bed, zero x/y and off I go.

thinking of something like this:

Thoughts?

Edit: example situation, my workpiece zero is bottom left. I cut out the detail and outline from the larger stock. Now I need to flip it over and hit the other side but i need to re-zero to the new workpiece. Now i’m trying to estimate the center or corner of my workpiece with the endmill which is hard to get in to see. a small dot might make this a lot easier? I use a low power laser to just light up the edge of my piece, knowing the offset to the center of the router bit I enter that in for my zero.

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