This is a custom cube for the Vector robot, with a .85 inch TFT screen. The parts were acquired here:

+screen: https://www.aliexpress.us/item/3256804923223698.html +controller: https://www.seeedstudio.com/Seeed-XIAO-ESP32C3-p-5431.html +battery: https://www.amazon.com/gp/product/B0116XN3A8 +IMU: https://www.aliexpress.us/item/2255799865201760.html +LEDs: https://www.adafruit.com/product/1938

The PCB for the screen needs to be trimmed down to 25mm length. I was able to do it with a loose hacksaw blade and a steady hand. There are no traces past the end of the screen (where the mounting holes are) so it can be safely cut off.

I have a repo (with schematic) for it here:

https://github.com/BillMerryman/Vector-Cube-TFT

and a program for doing up animations for it here:

https://github.com/BillMerryman/VectorCubeAnimationEditor

The screen in the schematic isn't exactly the same, but is compatible. To use a screen this small requires a slight tweaking of the Adafruit libraries that I am using. These are visible in a folder inside the repo.

Here are some demo videos:

https://youtu.be/nP3h5EDbyXo https://youtu.be/6ILSga8wy7s https://youtu.be/6XQODFT1Ack https://youtube.com/shorts/mQRtnW2FVAQ?feature=share

Just realized I forgot to upload the corner piece! I did these in TPU, and made the bevel slightly more pronounced on two sides. That side can be printed face down for a neat print with no supports.

03/19/24: Just added the face decals. They are done up as badges. I print with .12 layer height. The decals are .48 tall. I lay down the first layer in black, and have a post processing script that lets me change filament after the first layer. The remaining three layers (.36) are printed in white. I used spray adhesive to put mine on, and printed a stencil to fit over the cube to paint it precisely the shape of the badge. I'll upload the stencil if anyone is interested...

09/22/24: I've added LED and IMU capability!