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Chinese galvo help: not moving at all

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Mar 19, 2015
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Hey looking for some insight help with this project laser show project I'm working for school. I recently bought this galvanometer:

http://www.aliexpress.com/item/Laser...256305523.html

and Ishow 2.3 DAC converter and software. I've been tinkering with this project for about a week and can't seem to figure out why won't the galvanometer spin at all, everything is set up correctly. The galvo setup comes with a separate controller board with an ILDA port, which I have hooked to the DAC. The software and drivers are fully installed and the DAC is recognized (Windows XP). Whenever I try to run a short animation from the program, nothing happens. Mirrors are getting power because they make a whining sound when touched.

Can anyone clue me in on what might be going on? Is there something I'm missing? There was basically ZERO documentation with the salvos, so I'm kinda guessing. Thanks!
 





You should take some pictures of your setup.

Some software like LFI needs to be told to send output; otherwise it just sits in simulation mode.

Also, is everything properly grounded? Is there a volume-control looking knob you can turn to increase the angle?
 
also wasn't IShow 32 bit only?

OP
when you can-- please add a location n your profile- that helps us help you better.

member 'Ash' uses IShow- you might find extra galvoscanner help on this over at the lasershow forum-
I will look at your provided link- there all kinds of xscannersets out there and in most cases cheap= poor quality.
 
Controller_1.jpg

Controller_2.jpg


Here is the picture of the Controller board for the galvos. I tried to take a couple shots so you could see all the labeling. I believe the power and x/y are hooked up correctly, but I am unsure what should be in some of the other ports. I know that RO/GO/BO should go to the laser. You can see that I have the ILDA port hooked to the controller. I have been running this to the DAC. I also have the set of DIP switches hooked up, but they don't seem to have an effect.

Potentiometers.jpg

Galvo_board.jpg


Here's a picture of the Potentiometers that came with the galvanometer kit and X axis galvo board. I am completely lost in where to put these potentiometers, since they didn't provide any source of instructions. I'm assuming they go on the controller board.

Thanks for your insight and help! It is very appreciated.
 
Last edited:
First rule of troubleshooting: check voltages. Start with an amp board. What are all imput voltages?

At least one of the pots plugs into the demo board and adjusts mic sensitivity.
 
Last edited:
Try connecting the 3-wire plug to the 3-conductor plug on the board and adjusting that. I'm not sure where the other one connect to, but it's probably near the mic input.
 


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