UV Sensor for Wanhao D7 mask creation

thingiverse

I initialy created the Idea of mask generation based on a photo. Worked very well. I was curious about how exact it works and I ordered an Adafruit VEML6070 sensor which has still rasonable sensitivity in our UV spectrum and Adafruit deliveres a programming library for easiest setup an scetch. I shared all you need - except the Mask Generator program itselve. I used the Mask Generaor from here: https://www.patreon.com/GarageScience many thanks to that guy to share this. There is an unresolved bug - I already reported ... the 2560x1440 resolution cant be used (at least from me for any reason) you can use 2/3 pixels in x and y and scale the mask to 2560x1440 pixel afterwards easily. I designed also some housing which may be printed easily (I used FDM printing here) all you need to know for wiring is written in the scetch... and for electronic/Arduino Dummies.... I added a wiring picture :) used Hardware: - Arduino Nano V3 clone without soldered pins (eBay 1 Euro) - 0.96 inch White I2C IIC Serial 128X64 OLED, Driver IC: SSD1306 (eBay 3 Euro) - Adafruit VEML6070 Sensor (9 Euro) Important to know - it deliveres an value from 0 to 100 without a unit ! This is not any UV - value It deliveres the intensity gradient over the screen which is basically that what counts. when used to generate a Mask you my play with the brightness of the image to avoid to be too dark. To see how it finally worked ... https://www.youtube.com/watch?v=o3MpzQY05OQ&feature=youtu.be for me it makes no sence to go down to the lowest level as measured in the outer corners... preventing to reduce the curing times of "normal" sized objects have fun