The questions says it all; I am planning to build a custom 2-axis computer controller etching machine out of a modified ink-jet printer. The motorisation and computation part it not a problem yet, however I have no clue where to start from about looking for a laser. I am looking foward engraving/etching wood, metal, plastic and some other soft materials. I do not plan to CUT these however.
I do not know what kind of laser I am exactly looking for, nor it's power or anything else I should be aware of, including where to order it from. Even, will a DVD burner diode do the job?
If you have any past experience with laser etching, or laser technology, please contribute as I would be very grateful.