CAD design for magic sparkle crystal
more images in the gallery
have a look at magic_crystal_animation
- 4x LEDBoard_4x4_HD
- 4x 1/3-part of Heatsink ICK PGA 14 x 14 x 12 (3d-model)
- 8x nut M3
- 8x screw M3x20
- lasercut wood
have a look at the export/ folder for the files- 4mm plywood
- 1x crystal_mounting_layer1
- 1x crystal_mounting_layer2
- 1x crystal_mounting_layer3
- 1x lightguides_mounting
- 1x bottom
- 1mm plywood
- 4x lightblocker_side
- 1x crystal_mounting_layer4
- 4mm plywood
- electronics
- 1x Adafruit ItsyBitsy M4
or other CircuitPython compatible board
(Arduino firmware not done yet..) - 1x ambient-light-sensor (to be defined)
- 2x momentary-push-button
- DC-DC converter Pololu 5V, 5A Step-Down Voltage Regulator D24V50F5
- batteries
- for first tests 4x older version of Lithium Ion Cylindrical Battery - 3.7v 2200mAh
the older version has a maximal discharge current of ~500mA
so it is only possible to use the LEDBoards with low power setting..
4 * 6W = 24W โ 27W (input with loss of DC/DC converter)
4 * 3.7V = 14,8V โ 1,8 A
(4 * 3.7V) * 0,5A = 5,92 W - later eventually switching to LiFePo4
most likely to 18650 or 26650 2x 2s1p inline packs
(similar to 4s1p A123 ANR26650M1B 2x2-Pack 13,2V 2,5Ah)
- for first tests 4x older version of Lithium Ion Cylindrical Battery - 3.7v 2200mAh
- 1x Adafruit ItsyBitsy M4