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Did you check my thread?? http://laserpointerforums.com/f47/arduino-dac-xy-projector-82479.html

Here is a new movie of the projector. The galvos are directly connected to the DUE shield. Not bad for an amateur. ARDUINO LASER PROJECTOR - YouTube

can you send my your schematics of your circuit?

Hi Trawen, Which pcb did you make? The one from post #136? If only one galvo moves, change the TL082. These things sometimes brake down for no appearant reason. Is the power supply section correct? Did you fit the shield correctly to Arduino DUE? If the pin is one off, then only 1 DAC is...

Hi Pridmoremd. Yes they are still available. Please send me an email at camvo@online.nl

Beside the projector, you also need a DAC, a device which controls the projector. Further you have to think about the wavelengths to use and their power ratio. Othewise you cannot get a nice white color.

Thanks Maciejas! I could not agree more with Things. The distance from the photo sensor depends also on the amount of ambient light. But as Things said, with good shielding, you can improve the harp's sensitivity a lot.

Check out this one. watch?v=0Lun6saJEqI

Like this? watch?v=0Lun6saJEqI I think that 30mW has way too low power. I used a 532nm, 375mW laser in this video.

Servos are also too slow and not accurate enough. I think if they would work, they would wear out very fast.

Hi Keane, Sorry for the delay. The plans cost € 19,00. Cheers Peter

Hi Snipeye. I happen to sell laser harp kits. watch?v=0Lun6saJEqI

Thanks Hairy, I will keep it to simple beam animations. For now....

Ah now I see what you mean. The components properties. It is a potentiometer 10k for print mounting. Laying down.

RA-PRE??? Where do you see that? I made the PCB with designspark. Do you want me to send you the PCB? See below attachment.

Hi Multimode! I am fine thank you. I hope you are fine too. I have made an enhancement to the board. It has become a kind of an interactive DAC. You can "play" it like an instrument. So instead of THE dac PLAYING a fixed routine/program, you can switch between paterns, change speed size, color...

Hi Lordasriell, Have a look at post#5 and #86. It is not enough/clear?

Have a look at post #5 at the beginning of this thread. Is that enough?.

Hi Henny, Basically all you have to do is to route the blanking signals for RGB and the signals XY from the correction amplifiers to an ILDA connector and you are done. Do not forget to make the interlock connection on the ILDA connector.

What I miss in your setup is the show card. The galvo drivers will be connected to the show card.