Neopixel mount for Kossel

thingiverse

Motivation I desired some nice lighting on my Anycubic Kossel linear plus that would illuminate the object nicely without shining directly in my face when closely looking at the initial layer. So I quickly designed and made this Neopixel mounting that is a good light shroud at the same time. Mechanical This is only the left-hand side version, so the little 'cap' sits on top. To make the right-hand side version, simply mirror the model in Cura (or whatever flavor slicer you prefer). I used a piece of RGB LED-strip with 144 WS2812 elements per meter (about 1 LED per 7 mm) with a self-adhesive back. To mount the holders to the 2020 frame profile, use two T-nuts and M4*6 screws. The LEDs are very close to the toothed belt to keep as much clear space for removing models from the workspace from the front-side. Electrical This mounting holds 5 NeoPixels per side, which I connected in parallel. Power and signal for the NeoPixels can directly be provided by the servo output of the Trigorilla board with no problem. By default, the Trigorilla board has pins soldered to D11, +5V and GND, so you might want to use these. Firmware In the Marlin configuration.h file, uncomment the 'define NeoPixel' line: #define NEOPIXEL_LED Next define the pin you connected the Neopixels to: #define NEOPIXEL_PIN 11 And define the number of Neopixels that are connected in series by: #define NEOPIXEL_PIXELS 5 You may want to change settings such as brightness, startup test (shows all colors). In my case, the light was not white at all, so I changed the 'white' values in neopixel.h: #define NEO_WHITE 255, 180, 170, 0 These are the 8-bit values for red, green, blue and white respectively. The WS2812 Neopixels have only RGB channels, increasing the white value does nothing. Usage After startup, the LEDs are white. When starting a print, in the warmup phase, the LEDs start blue and gradually turn red as the bed and hot-end heat up. During the print, the LEDs are white again. When the print is done, The LEDs are green. After clicking to continue, the LEDs turn off. I would like them to return to white, although I don't know how to change this yet. Happy printing! I would love to see a Make! - Honeycomb vase by [Eggnot](https://www.thingiverse.com/thing:2376777).