Build a shutter tester for Focal Plane shutters - Cheap, Easy & it Works

[LIK]

There are clearly no problems with lighting. I have both the seals and the frame installed. I'll see what the problem is. Thanks

 

[LIK]

There are clearly no problems with lighting. I have both the seals and the frame installed. I'll see what the problem is. Thanks

 

[LIK]

Solved the problem. One of the screws clamped the wires and broke the insulation on the M sensor

 

[meiserati]

in few Days, i am ready with the first, two laser version, the esp32 follows with a nearly same construction.
Alloy frame and 3d printed parts.

thanks for the firmware

 

[Niglyn]

HI, looks good. Your 3d printer has been working overtime )

 

[meiserati]

Hi.
first "twolaser" version.

Question. I searched in the whole thread - But i dont found an answer why
i have in the second row a "Err" for both lasers/sensor. I made a senn test, "blocked" is
flashing with seen, but worked in ambient light slightly. i changed sensor, but the same.
i cant change the nano board, because new auth. code is necassary.
any idea?

many thanks

 

[Dmitry K]

Hi!
Finally managed to finish this project. Not the perfect one (somehow I switched sensors\lasers placement), but I like it. A huge thank you to Niglyn and everyone who posted their builds, it helped a lot in the process! And I think it works perfect! No strange readings or anything like that. I've tested two of my cameras already and the results look plausible.

 

[Niglyn]

Hi.
first "twolaser" version.

Question. I searched in the whole thread - But i dont found an answer why
i have in the second row a "Err" for both lasers/sensor. I made a senn test, "blocked" is
flashing with seen, but worked in ambient light slightly. i changed sensor, but the same.
i cant change the nano board, because new auth. code is necassary.
any idea?

many thanks

Hi,
Reset (or power up) the tester whilst holding the 'display average' button.
Keep the button pressed until after the splash screen and this will take yo to the alignment screen.

The screen should look like this :-
Sensor 2 Sensor1
Blocked Blocked


The word 'Blocked' will toggle between Blocked & **Seen**
depending on the sensor state.

This will help you diagnose the issue.

With the sensor covered, it should say 'blocked.
When the Laser is aligned correctly with the sensor, it should say **seen**

If the display is rapidly alternating between Blocked & **seen** then there is an issue. It could be flickering light, from a LED light or from a computer screen.

If I have my tester too close to the PC screen, I get this issue and so have built a little hood out of cardboard, that fits above, to the sides and over the top of the sensors, to protect them from stray light.

Err is displayed when first powered up, as no reading has been detected (this is changed in the latest firmware version to be released soon and instead shows 0.0)

If during a testing cycle, the results fail the sanity check (too short for example, caused by flickering LED light, Err is displayed to show there was no valid test.

Let me know how you get on.

 

[Niglyn]

Hi!
Finally managed to finish this project. Not the perfect one (somehow I switched sensors\lasers placement), but I like it. A huge thank you to Niglyn and everyone who posted their builds, it helped a lot in the process! And I think it works perfect! No strange readings or anything like that. I've tested two of my cameras already and the results look plausible.

HI, that looks really good, thanks for posting the photo of your build.