The Laser Galvanometer Thread! B)
I'm on the verge of ordering a 2D laser galvanometer from China: EBay. The seller says that the mirrors should be OK with 405 nm lasers, and it has a USB connection and an ILDA connection, i'm...
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... I've done this with similar cheap chinese galvo-sets and a Dynamics nano driver for 445nm-diodes. It works, but the main problem is to get a precise spot in the desired working distance. With my...
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Thanks for the link, i'm reading through that thread right now. Exactly the kind of info i wanted! But, the problem you mention is caused by the laser, not the galvo? I have a lot of reading and...
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Maybe i should state my question more clearly. Assuming a perfect laser, what properties of the galvanometer scanner will affect the final laser spot quality and its movement? Things i can think of: *...
View ArticleRe: The Laser Galvanometer Thread! B)
... if you drive the galvos with max. 50% of the stated speeds, they are accurate enough for laser-curing or engraving. The limiting factor is the beam-quality of the laser and the energy densities...
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Today i got the galvo to move! :)-D The "show card" did not have a USB connection, only ILDA, which means a digital to analog converter is required between the computer and the show card. I had no...
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... the ILDA or analog +/- signal is more the 'hardware-side' of galvo-driving ... I'm using an USB-driver, that converts the serial sent values into the analog +/- signals. With unipolar signals the...
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I looked at the Lasershark project and its opensource but is only 12 bits, has more features than i need, and since i already have a show card i think i can get what i need (a simple DAC) for a...
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Yesterday i got my Arduino-DAC-galvoscanner experimental setup working. Wow! I used an Analog Devices AD5732R DAC on a breadboard, no other components needed (though one should definitely add some...
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I have my galvos 20kpps ordered from aliexpress. I have removed the large mcu from the show card and get the pins of ad5734 and driven thru arduino. It worked like a charm (ofcource powered an laser...
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Quoteajaybnl I like to draw patterns in cloths for sewing. But the 8bit dac should be replaced with 24 or 32bit so that using from far, it should point accurately to points. ... if it's not for...
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