Carvera Air laser holder
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This is a bracket to hold two "line" lasers to act as a cross hair replacing the laser in the original xy probe
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As I have replaced the original xy probe on my carvera Air with a 3D probe and still liked to use the Margin function, I added two line lasers to the spindle cover. Where they cross is where the Bit will cut. I wired them in parallel to the 3D probe so they are powered by the supply feeding the original laser pointer. They mount where the vacuum hose parks when it is not in use. (I don't use the vacuum at all so not a problem for me)
It prints without support and I printed it at 0.3 layer height out of PETG.
I also have two holes for grub screws to hold the lasers but they ended up a tight fit so not required but maybe useful if they lasers are a bit smaller.
The lasers I used were just cheap ones from Aliexpress
I put some heatshrink around the focus rings to stop them moving once I had them focused at the correct height.
There is a lot of reflective metal around the carvera, be aware that the laser may be reflected in any direction, it is prudent to use eye protection and keep the lid closed when moving the spindle about while the lasers are powered up.
Unfortunatley I do not have a step file for this.