| ▲ CO2 laser cutter |
First up for modification was the rear mount (immediately after the laser tube itself).
This shows the disassembled mirror mount. At the bottom are the little spring retainers. This is a socket-head M3 capscrew, with a short spring and a little conical nut at the other end.
 |
A view of the holes in the mirror mounts. The holes for the retaining screws need to be deepened with a 5.5mm drill bit to get more travel out the spring.
 |
Here it is assembled. Another very important mod is to round off the tips of the adjustment screws - as they are, they have a sharp square end which just digs into the aluminium of the mount!
 |
 |
And now mounted back in position on the laser. I also replaced the two screws on the horizontal adjustment plate with socket-head screws and also made a larger washer (the rectangular plate). The two screws on their own simply pressed their way into the aluminium and made sliding imposssible. Now it's smooth.
 |
|
Here we go again for the gantry mount - pic is before modification. Note the two screws which hold the mirror plate tight - no adjustment in these!!
 |
And here it is after modification:
 |
| ▲ CO2 laser cutter |