AuRA 1.3 Rotary Assist Film Developing Machine

READ THIS FIRST

This project is the next iteration of the AuRA Film Developing Machine. Original machine was introduced on the Kickstarter back in 2021.

https://www.kickstarter.com/projects/vfalendysh/aura-rotary-assist-film-developing-machine

v1.2 review by Alex Luyckx: https://www.youtube.com/watch?v=DZNfe24eHN0

I'm trying my best to keep this project alive for the benefit of the Film Photography community.

PLEASE NOTE:

• Everything provided AS IS, without any warranties.
• Non-commercial private use only. I reserve the right for the commercial distribution and use.
• Zero liability - you do it at your own risk. I'm not liable for any damages related to this project.
• If you continue with this project it means that you read and agree with the above statements.

LICENSE

Shared under Attribution-NonCommercial-ShareAlike 4.0 International License

https://creativecommons.org/licenses/by-nc-sa/4.0/deed.en

PURCHASE YOUR AuRA

https://aurafd.company.site/

Electronics Assembly Manual (WIP)

https://docs.google.com/document/d/1hErU2MmGirhdWFpWhWet4WLlM-BJHZemsq4ywI-r1ss/edit?usp=sharing

Operations Manual

https://docs.google.com/document/d/11cLEZ-TlUOUsFuLOAkJhnijDMngBIQ9VhE78JiG_ncQ/edit?usp=sharing

Questions?

Please ask here: https://www.facebook.com/groups/195994281887859

Changes between 1.2 and 1.3

Firmware

• Max dev. time increased to 90 minutes.
• Changed tanks captions in "Settings" menu.
• Enabled demo mode by default.

Mechanical

• Main ball bearings are moved on the outside of the constaining bodies and now fixed on both sides.
• No need for retaining rings (no lathe work required) - replaced with shaft collars.
• Increased main case size a little bit for better access.
• Boards are now easily removable if needed - they are placed on the platform and fixed with 2 screws only.
• No USB port on a side (may add latter uppon request).

Bill Of Materials

Most of the componets can be purchase on Amazon or AliExpress.

https://docs.google.com/spreadsheets/d/1RUYtAMMg844CDN_oNOtQVQ9Nui_DjjbX51vlC8axlfM/edit?usp=sharing

Please let me know if something is missing from the BOM or you have sourcing questions.

3d Printer Settings

All parts should be printed with the following settings:

• 0.4mm nozzle
• 4 perimeters
• 0.2mm layer height
• 5 top/bottom shells
• 60% geroid infill
• PETG plastic
• Colors you like

Please make sure that your printer is calibrated and prints with the hight dimmensional accuracy. If rollers do not fit - try to print one by one resizing it by 0.2% increment.

Firmware

• Put folders / files from the "Firmware/libs" folder into your local Arduino/libraries folder.
• Choose "Arduino Nano" board in Arduino IDE. Sometimes you may need to choose "old bootloader" verstion of the board.
• Open "firmware/aura13.ino" file.
• Compile / upload to the board.

If you have binary size issues - make sure that U8G2 library has size optimizations turned on. Check for more here: https://github.com/olikraus/u8g2/wiki/u8g2optimization

Electronics

Wire / assembly diagram - WIP.