Quote Originally Posted by curious aardvark View Post
yeah the semi-conductor shortage is a real bastard.
Cheapest around at the moment comes from south korea (so add a bunch of import tax) and costs £130 + about £35 tax.
Oof. That's a lot of extra cost. The chip shortage did its toll on the tiniest of microcontrollers to high-end 5nm processors. Fortunately for Luna, it seems that Microchip fares a little better than other microcontroller companies. I can still get some samples, and there are still some stock or at least a restocking in a few months.

Regarding the selling points of Luna over Duet 3 Mini 5+:

1. Luna has both WiFi and Ethernet; with Duet 3 Mini 5+ you have to choose one. While 3D printers are not mobile devices, it's nice to know that you don't have to buy another board if your network setup changes down the line.
2. Networking, processing human-interface devices (graphic lcd, etc.) is offloaded to the ESP32-S3. The SAM E5 microcontroller can focus on kinematics, stepping and real-time control, resulting in higher theoretical print speeds.
3. Some other hardware goodies: extra on-board regulators, more IO, dual-port driver, higher-rated MOSFETs.