In the last few months, after publishing, there was extensive polishing to improve the project and make it easier to build. Full log

Web app

• Significant UX improvement. Rework for Material Design 3.
• Added profiles import/export to simplify sharing.

Hardware

• Migrated to EasyEDA Pro (better board management).
• Completely removed RTD sensors support. TCR works pretty well and is simpler.
• Support up to 48 volts (for future needs).
• Magnetic lock reworked. No glue required anymore (simplified assembly).
• Most of the mechanical parts (screws, nuts, etc.) are now from JLCMC. That significantly reduced expenses and allowed combined delivery.
• Reworked the heater base to reduce the connectors' heating.
• Reduced heater & whole-case height (more compact & a nice look).
• Improved SMT stencil positioning method. Use calibrated pins instead of wire (reduced stencil drift from 0.05 mm to almost zero)
• Improved algorithm of PD profile selection.
• Reduced TCR measurement noise.
• A lot of other firmware refactoring/bugfixes

Pending for check

The items below already exist, but are waiting for new PCBs/components to assemble and check the latest version.

• New buck converter for 3.3V power, cheaper and easier to solder.
• Connector for built-in milliohm meter, for MCH matching.
• Use more robust thermal paste from 3D printers.