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May 19, 2018

photon-resin-calibration

The Photon Resin Calibration Tester (often called the Exposure Finder or XP Finder for short)

is a method that allows you to quickly find the best exposure settings for any resin or UV film.

Due to its ease of use and fast results, it has become the de-facto test method used by thousands of owners for their Anycubic Photon (original) 3D Printer, and for other CBDtech based printers such as the Epax X1 and Elegoo Mars.

This exposure range (latitude) tester removes most of the guesswork on layer time exposure by using multiple consecutive exposures to simulate different unique layer times for each test column.

And it comes with the added bonus of learning all in one go, the minimum viable width for positive and negative space details of each column exposure time.

How to use - by InventorSquare

How to use - Photonsters Youtube by Jay Sterling


testphoton2 0

github-photon-file-blueprint

QUICK READ OF A CARD

  • Start from top and locate first well formed circle column
  • Move to bottom last visible Circle
  • Move right untill the circle starts to clog
  • Backtrack one colum
  • That's your sweetspot

image


Example Prints

Below is an example of validation models done from a 2-20s range card, revealing a usable range of 8-18s exposure time.

Resin Test and time effect


Context Video

https://www.youtube.com/watch?v=0fksIkSthl8

The origins of this test come from a silkcreen and darkroom tuning technique called step wedge test, read about it > here <

Under The Hood

https://www.youtube.com/watch?v=s_NIeiNoKi0&t=73s


Acknowledgements

Kudos to @Reonarudo for finding what makes .photon files tick. Check his project to convert images into .photon files (here)[https://github.com/Reonarudo/pcb2photon]

Kudos to Toby1kanobi in the anycubic owners forum for translating and cleaning up the gcode file used to switch modes in the printer


image You can find the source CAD Model that was used for this hack test here

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Anycubic Photon - Files and method to quickly find the best latitude exposure settings for any resin or 405nm UV coating

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