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Laser cutter calibration assistant

by i-make-robots, published

Laser cutter calibration assistant by i-make-robots Jun 11, 2013

Description

I bought a laser cutter. The worst part of calibration seems to be aligning the mirrors. The laser beam is invisible and very dangerous, so the recommended way takes days and goes like this:

- put new paper/tap on the 3 mirrors
- fire invisible CO2 beam
- look at holes in paper/tape
- adjust mirrors
- remove old paper/tape
- repeat

including a lot of opening and closing machine in the middle. If you had a mostly harmless visible beam that matched the C02 beam then you could adjust the mirrors in minutes. ...and that's why I made this.

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I have recently tested this device. Worked great! What used to be burny, sooty cuts are now smooth and mostly smell-free.

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Instructions

- Get a $10 cat annoying laser
- Print two copies of this part. It is printed on it's side to prevent delamination problems.
- Bolt them together with 25mm M3s so that they clamp onto the cat laser. The middle finger on the holder should push the button on the cat laser. The holder has long fingers so that the laser can be tilted, if necessary.
- Rest it on a flat surface. You can also use the bottom hole to mount it on an M3 rod (which would need a base of some kind).
- Put the tape on the mirrors.
- Fire the C02 once.
- Move the cat laser stand so that the red dot goes through all the tape holes. Both lasers now match. Do not move cat laser again.
- Remove tape.
- Align mirrors.
- Turn off and remove cat laser.
- Go mess with your pets.

This has not yet been tested so I would appreciate your feedback.

Comments

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i-make-robots on Aug 26, 2013 said:

I have recently tested this device. Worked great! What used to be burny, sooty cuts are now smooth and mostly smell-free.

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