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ldgraphy [2020/11/07 16:33] – yair | ldgraphy [2020/11/09 14:09] – yair | ||
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first go\\ | first go\\ | ||
{{ldr-003.mp4}} | {{ldr-003.mp4}} | ||
+ | |||
+ | ===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 |
{{: | {{: | ||
{{: | {{: | ||
+ | |||
+ | |||
+ | |||
+ | what's inside? | ||
+ | |||
+ | {{youtube> | ||
+ | |||
+ | 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. | ||
+ | * Connect computer with ILDA test pattern, run it at approx. 20kpps. | ||
+ | * 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 **size** until you see the galvo moving. | ||
+ | * Increase **servo gain** until you see overshoots. Correct it with **LFD**. | ||
+ | * Decrease undershoots by opening the **HFD** pot slightly clockwise. Remove **gain/ | ||
+ | * Increase speed of test patterns and readjust for optimized picture | ||
+ | |||
+ | {{: | ||
+ | |||
===software=== | ===software=== | ||
[[https:// | [[https:// |