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Both sides previous revision Previous revision Next revision | Previous revision | ||
ldgraphy [2020/11/07 21:00] – yair | ldgraphy [2020/11/11 02:10] (current) – yair | ||
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first go\\ | first go\\ | ||
{{ldr-003.mp4}} | {{ldr-003.mp4}} | ||
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+ | |||
+ | ===TODO=== | ||
+ | find out what's up with the Y axis galvo. it gets very hot when on and doesnt move. | ||
===hardware=== | ===hardware=== | ||
Shih [[http:// | Shih [[http:// | ||
- | the scanner | + | |
+ | the scanner | ||
{{: | {{: | ||
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{{: | {{: | ||
- | **Basic Tuning** | + | |
- | Basic adjustments | + | |
- | The driver board comes already pre adjusted for 3 projection angle and needs to be set up for | + | what's inside? |
- | the galvo only in small areas. Every galvo is different, so 3 of them adjustments are needed. For | + | |
- | this, the ILDA test pattern is used ,also a setup of the galvos in XY with a laser . If you need to | + | {{youtube> |
- | tune the driver faster to smaller angles, follow the procedure below . Also if the driver is totally | + | |
- | | + | AlliExp stroe (not he one sent)- https:// |
+ | pro ThorLAB - https:// | ||
+ | |||
+ | **Basic Tuning**\\ | ||
+ | Basic adjustments\\ | ||
+ | The driver board comes already pre adjusted for 3 projection angle and needs to be set up for\\ | ||
+ | the galvo only in small areas. Every galvo is different, so 3 of them adjustments are needed. For\\ | ||
+ | this, the ILDA test pattern is used ,also a setup of the galvos in XY with a laser . If you need to\\ | ||
+ | tune the driver faster to smaller angles, follow the procedure below . Also if the driver is totally\\ | ||
+ | deadjusted , this will be the procedure to retune it : | ||
* Size, Servo-Gain, Damping und HF-Damping are adjusted counter clockwise to their left zero position. Now turn LFD 5 full rounds clockwise to right. | * Size, Servo-Gain, Damping und HF-Damping are adjusted counter clockwise to their left zero position. Now turn LFD 5 full rounds clockwise to right. | ||
* Connect computer with ILDA test pattern, run it at approx. 20kpps. | * Connect computer with ILDA test pattern, run it at approx. 20kpps. | ||
* Power on the amplifiers. | * Power on the amplifiers. | ||
- | * Slowly open the servo gain (clockwise). The mirror of the galvo should move now to its middle position. If yes, turn two rounds clockwise. | + | * Slowly open the **servo gain** (clockwise). The mirror of the galvo should move now to its middle position. If yes, turn two rounds clockwise. |
- | * Slowly open the size until you see the galvo moving. | + | * Slowly open the **size** until you see the galvo moving. |
- | * Increase servo gain until you see overshoots. Correct it with LFD. | + | * Increase |
- | * Decrease undershoots by opening the HFD pot slightliy | + | * Decrease undershoots by opening the **HFD** pot slightly |
* Increase speed of test patterns and readjust for optimized picture | * Increase speed of test patterns and readjust for optimized picture | ||
+ | {{: | ||
===software=== | ===software=== | ||
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maybe [[http:// | maybe [[http:// | ||
+ | ===diy=== | ||
+ | {{: | ||
+ | http:// | ||