Last week, John (I think)
mentioned the awesomeness of having laser crosshairs on the 2.5d CNC, for lining up parts and what not. I was wondering what everyone would think of it, but it looks like it could be done pretty cheaply with these lasers+lenses I found on ebay
. I'd prefer to use the laser simply to line up materials with the X-Y axis of the CNC bed, as the current method involves jogging the router around to make sure the corners are lined up.
Alternatively, one laser could be fixed on the CNC frame to project a line along the x axis and another along the y, to avoid adding any clutter to the moveable router fixture. Putting these on poles/shafts could also allow the beams to be moved along each axes, so rather than a cross hair, it'd allow for aligning one corner + two sides to get the material squared up.
So I'm wondering how everyone would feel about it and I'm looking for your suggestions