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  • Venkes commented on Venkes's instructable Quick, dirty and cheap laser engraver3 months ago
    Quick, dirty and cheap laser engraver

    Thank you!

    Thanks!

    You're welkom!

    Thanks.

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  • Venkes followed Venkes3 months ago
  • Venkes commented on Venkes's instructable Quick, dirty and cheap laser engraver5 months ago
    Quick, dirty and cheap laser engraver

    It's been a while when I bought my laser at DTR's, Idon't see mine on their website anymore. What I had purchased at DTR's lasershop was:- A blue 2Watt laser diode, already pressed in a copper module;- A good lens (glass not plastic);- A suitable driver.The driver is very important because you can't hook the laser diode directly to a normal powersuply. They need to be current controled. The driver I had has to be tweaked to make sure there was not slow start. But you can find how to do that, on their website as well.Second important is the ability to switch the laser on and of by TTL, so you can use Arduino's pin 12 to switch directly the laser on and off.Cooling is very important too, so you have to buy an adaptor for the 12mm brass module or make one yourself. Thats what I did.On the...see more »It's been a while when I bought my laser at DTR's, Idon't see mine on their website anymore. What I had purchased at DTR's lasershop was:- A blue 2Watt laser diode, already pressed in a copper module;- A good lens (glass not plastic);- A suitable driver.The driver is very important because you can't hook the laser diode directly to a normal powersuply. They need to be current controled. The driver I had has to be tweaked to make sure there was not slow start. But you can find how to do that, on their website as well.Second important is the ability to switch the laser on and of by TTL, so you can use Arduino's pin 12 to switch directly the laser on and off.Cooling is very important too, so you have to buy an adaptor for the 12mm brass module or make one yourself. Thats what I did.On the other hand, you can buy a complete module with laser, driver, lens, cooling, TTL etc. You can find them on the web. But pay attention to the TTL: I've had seen lasers that switch the laser off with TTL high. You must have one that switch the laser on with TTL high. And no slow start!I hope this helps.

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  • Venkes commented on Venkes's instructable Quick, dirty and cheap laser engraver5 months ago
    Quick, dirty and cheap laser engraver

    I don't have tested the limits of the laser in the machine with many differend materials but 2Watt's is reasonable strong and can burn through stuff with ease but has troubles with thick materials. Wood for instance is difficult, you can set it on fire and angrave it but cutting? Even with a 40Watt laser you have to engrave several times the same object to go through. But with this laser you can easely cut paper, plastic's, cardboard (see pic) etc. The color of the material is very important for the speed on with you cut/engrave.

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