laser diode

Posts Tagged ‘laser diode’

DVD-CNC. Laser cutter DIY Project. Concept.

DVD CNC. The whole setup with PC, mechanical parts and electronics pictured.

DVD CNC. The whole setup with PC, mechanical parts and electronics pictured.

DVD-CNC is still very much a project in progress. The purpose of this and the future posts in this series is to present project build notes which will, hopefully, help someone building a similar DIY laser cutting device. The project is not complete but some of the biggest issues have already become apparent. So, if you are interested in building your own DVD-CNC device, read these notes at least to avoid making the same mistakes. Besides, despite the project as a whole is still in progress, some parts of it, such as the TTL-controlled laser diode driver for example, are already at a workable stage and can be used in your own projects.

This project came about as a result of my propensity to never throw away parts that were designed to or can be adapted to move electrons. I am also very interested in mechatronics and motor control in general and so it was all but certain that over time I would have accumulated enough of various discarded data storage devices because they are so cleverly combining parts of both mechanics and electronics. We live in world filled with discarded devices that only a few years ago were the stuff of science fiction. I always feel bad about the discarded yesterday’s technology and it gives me an extra kick to have it re-purposed for today’s needs. Read the rest of this entry »

Laser Diode Power Output Based on DVD-R/RW specs

Unknown red laser diode - what performance can we expect? - Elabz.com

Unknown red laser diode - what performance can we expect? - Elabz.com


I’ve opened about a dozen different types of CD and DVD drives so far (of both read-only and burner varieties) and every time it’s a thrill to find a working red laser diode in there. But it would be useful indeed to know what performance can be expected from the laser diode once it’s free of its mounting hardware (AKA “sled”) – if it’s the laser diode you’re after, the drive may not even be worth opening. It would be nice to know that before wasting some time on opening it. Although it would be hard to know the exact specs of the diode down to the part number, some of the specs can be found rather quickly doing an Internet search. Here is how I do that.
Read the rest of this entry »

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