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ldgraphy [2020/11/06 22:34] – yair | ldgraphy [2020/11/11 02:10] (current) – yair | ||
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got a package in the mail from Shih Wei Chieh | got a package in the mail from Shih Wei Chieh | ||
+ | unpacking\\ | ||
{{dlr_unpacking.mp4}} | {{dlr_unpacking.mp4}} | ||
- | **hardware** is similar to [[https:// | + | first go\\ |
+ | {{ldr-003.mp4}} | ||
- | **software** [[https:// | ||
+ | ===TODO=== | ||
+ | find out what's up with the Y axis galvo. it gets very hot when on and doesnt move. | ||
+ | |||
+ | ===hardware=== | ||
+ | Shih [[http:// | ||
+ | |||
+ | |||
+ | the scanner is PT-A40 | ||
+ | |||
+ | {{: | ||
+ | |||
+ | {{: | ||
+ | |||
+ | |||
+ | |||
+ | 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=== | ||
+ | [[https:// | ||
+ | and idiot.io [[https:// | ||
+ | |||
+ | ===control=== | ||
needs 3 channels of audio to control X/Y/PULSE\\ | needs 3 channels of audio to control X/Y/PULSE\\ | ||
- | mybe [[http:// | + | jack got me [[https:// |
+ | |||
+ | "has 1 stereo out and 2 mono" | ||
+ | {{: | ||
+ | |||
+ | maybe [[http:// | ||
+ | ===diy=== | ||
+ | {{: | ||
+ | http:// | ||
- | {{ldr-003.mp4}} |