stm32-emulator VS turbo-resin

There's also stm32-emulator. Originally developed for 3D printer firmware reverse-engineering, but should work for other stuff as well. Basically QEMU + SVD parser + emulated peripherals.

STM32 Emulator The developer created this emulator to facilitate his effort reverse engineering the Anycubic Photon Mono 4K 3D printer. If you're waiting for a STM32 microcontroller (really?) it's probably your chance to run your code before you die.

Yes, I'm loading the firmware that we can download from the official website in the emulator, via this config file: https://github.com/nviennot/stm32-emulator/blob/main/saturn/config.yaml

Sources: https://github.com/nviennot/stm32-emulator/ See the saturn/ directory in there to see how it's configured.

Async Rust does definitely work for non-toy use cases. As a data point, we use Embassy for all production firmware at my startup (https://akiles.app/en), using async tasks for everything: Bluetooth, TCP/IP networking, motor control, user interface (LEDs, keypad), a key-value database in flash, stats collection... Async helps with battery life too since it allows putting the core to sleep when no task has work to do, it allows us to build devices with 1-2 years of battery life.

There's other companies using Embassy in production. Sadly firmwares are usually not open source. There's a few non-toy open-source projects using Embassy though:

- https://github.com/nviennot/turbo-resin

I know this exists, https://github.com/nviennot/turbo-resin maybe they already have something documented?

There has been some steady (but slow) progress on an open source firmware for a few popular printers, with one of the goals being to allow multiple file formats. I believe they're still targeting the Mono 4k and Saturn for their first release, but I haven't checked in on the project for awhile.

Yes!! Here's my Rust 3d printer software: https://github.com/nviennot/turbo-resin

There's a nice Photon Mono 4k reverse engineering project by Nicolas Viennot on GitHub where he fixes the crappy touch sensing in the firmware. The goal is to replace the firmware on a variety of chitu-based resin printers with much better open source firmware.

Backstory: I'm writing TurboResin, an open-source firmware for resin 3d printers. We want to support many printers, and one of the difficulty is to understand the electronic board layout and protocols of each printer.

It's coming https://github.com/nviennot/turbo-resin

This is the last part of the reverse engineering series. At this point we are confident that we can finish the firmware to do a print. The firmware repository is here: https://github.com/nviennot/turbo-resin/

There is a project to produce an open source firmware for resin printers TurboResin - it's at a very early stage (not able to actually print yet, but making progress) In time, it should be able to do something similar to what the RERF does and use different exposure times within the same print to strengthen interior parts while leaving surfaces less exposed for maximum detail, which would be very cool!

That's it in a nutshell. I think the pump idea would work but resin is messy so changing resins would be a pain and you would have to clean the lines. Although if you had control of the printer which this project looks well on it's way to accomplishing: https://github.com/nviennot/turbo-resin then you could use the build plate to mix the resin which would simplify things a lot.