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Gavlos outputing signal.

kiyoukan

kiyoukan

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My galvos not matter how i hook them up put the image out upside down and inverted or 90 clockwise.
if i switch the x and y. if i hook them up right ie x to x y to y and G i get a 90 clockwise turn to the image.
If i switch them up x to y and y to x i get it inverted and upside down.
I cant seem to get it to be normal.
I am using laserboy and playing wav files.
I gave up on lfi for some reason it did not like my pc.
 





N

noesc

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You should head over to the laserboy forums. James can help you.
 
Grix

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There is a function in Laserboy to invert signals in .wav's.
 
HIMNL9

HIMNL9

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..... or you probably have one of your galvos wired in the opposite sense .....

Try to exchance only one couple of wires each time .....

BTW, which galvos are you using ? ..... with or without feedback ?
 
kiyoukan

kiyoukan

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is there a way to tell?
I will look for that setting, thanks grix.
 
Benm

Benm

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If its rotated 90 degrees, you have switched the galvos (or any connection to them). The galvos are likely identical themselves, you could have installed the X galvo in the position for the Y one and vice versa.

Its easy to make this mistake: Remember that the galvo that controls Y sits in the horizontal plane (ie sticks out of the side of the mount), and the one that controls X sits in the vertical plane (sticks out of the top). This is completely logical, but intuitively i'd be inclined to install something marked 'Y' in the vertical position.
 
kiyoukan

kiyoukan

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i switched the connection from the board to the galvos it comes out right side up but the text reversed
 
Benm

Benm

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So, reverse the leads for the differential signal driving the galvo thats projecting the X signal... Also, you can probably make the correction in software, programs like LFI have 'invert' tickboxes for most of the signals.

Its common to inverse the X direction by mistake. You'd assume that a positive x signal would mean 'to the right', but does that mean the right when looking at the projection on a wall, or the right when looking at the laser in a beamshow setting?
 
C

carmangary

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If it is sideways then swap x&y. If it is upside down or backwards then reverse the y or x connections. Or, if you have software such as Spaghetti, just check the Swap or Invert settings.
 
kiyoukan

kiyoukan

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okay so if the image is the right way up but reversed i switch the wires coming from the correction amp to to galvo board.
If the image is upside down i switch the wires from the amp board to the galvos.
These are the same things? i think im confused.
Because im dont make sense.
 
C

carmangary

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kiyoukan said:
okay so if the image is the right way up but reversed i switch the wires coming from the correction amp to to galvo board.
If the image is upside down i switch the wires from the amp board to the galvos.
These are the same things? i think im confused.
Because im dont make sense.
Click to expand...

If the image is upside down your Y-wires need to be reversed. If the image is a backwards like in a mirror your X-wires need to be reversed. If your image is sideways, your X and Y wires need to be swapeed.
 
kiyoukan

kiyoukan

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but i cant reverse them there is only XYG so i don't know what to do there.
 
C

carmangary

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Since you are kind of in the dark about this my suggestion is just to fix it through the software settings.
 
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