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balancing-cube's Issues

Batteryboard design

The schematic for the battery board has pin 1 on the OUT connector floating, I believe this is an error and they should be tied together to pin 1 of the IN connector.

Also based on the switch position the power flows opposite of the indicated ON or OFF labels. I have switched the labels and added pin 1 on the OUT connector to the GND plane on my own board.

Clarification Opportunities

Hello!

First off I want to reiterate how amazing your work here has been to replicate. The design work of the CAD models and electronics are truly world class; the pieces first together beautifully and things are relatively easy to follow.

Some discoveries I've had while building this:

  1. Unclear on Routing Error / Bodge Wire reference: in the website you have a picture showing a mistake made on the routing for the motor controllers and how you corrected it with a bodge wire bridge. It's unclear to me if I need to replicate this, or if you corrected the routing in the final PCB design. Could you help explicitly clarify either way so I know what I should do?

  2. Well-lit / High Res Picture to help with placement: I've struggled to determine if all my placed components are in the correct orientation. I found and followed the schematic in most cases, but I would find it extremely useful to have a well-lit, close-up top-down picture of the board (before placing the dev board). There is one dark picture on the website where I could see my fuses were backward and fix it, and I think the TVS Diodes have the cathode / grey stripe to the right, but I can't quite see.

  3. I noticed there is no description of the steps used to flash the dev board. While I'm capable of bumbling through basic Arduino setup and the trial and error process of installing Expressif plug-ins until I find the right things to target this board, and figuring out which connection to plug into and what port this resolves to in Arduino, having any sort of steps laid out as a template / what worked before would greatly assist me in getting it right sooner and more easily.

  4. I ordered everything in the BOM, and I seem to be missing the battery cable from the power board to the motherboard. Could you provide the reference to that / add to the BOM?

  5. I don't seem to see where I can understand which motor controller board connects to which motor. I'm studying the pictures to try and see, but it's not very clear.

Again this is a beautiful work of art! Thank you for building & sharing.

Include parts list?

Hello!

I've set about trying to build this, and ordered all the parts listed in the Article and Readme / in repo.

I've ordered:

  • motors
  • motor controllers

I'm currently missing:

  • the exact countersunk screws & count
  • the capacitors by type and count
  • the other transistors / parts seen on the PCBs
  • the exact small radial ball bearing used
  • the exact battery used (useful for dimensions even if I get a different one)

A picture of the PCB without the controllers and ESP32 in place would be helpful, especially to see the IMU placement and make sure I have it correct.

Thank you for creating this project! It's enjoyable and inspiring to build.

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