Dedicated fan headers will allow you to reduce noise in idle because you can turn the hotend cooling fan off whenever the heater is below a specific temperature.
CETUS3D WIFI SKIN
Better Microstepping eliminates salmon skin on prints and will improve accuracy and quality.
CETUS3D WIFI DRIVERS
A recent RepRapFirmware mainboard like the DUET Mini or the Mellow FLY will come with TMC2209 drivers that have proper Microstepping and can work almost silently.
Though if you have a machine that's just not working properly due to the electronics and firmware but is mechanically solid, such a conversion might make an old machine perform really nicely again. That doesn't require any firmware configuration is the easiest to implement and objectively the best solution in such a case. My conversion from a proprietary mainboard to the Mellow Fly RRF worked great, and I regret nothing because everything is better, but what can you expect if you're thinking about putting such a new mainboard in one of your machines? Well, first, if you've got a printer that works and you're only looking for WiFi connectivity, just add Octoprint. Preferably my adapter board (soldering iron required)Ī cartridge thermistor (video comments suggest the CETUS uses a PT100 so the stock thermistor might be compatible with the Mellow boards) Prerequisites for the CETUS Mellow FLY conversion Despite the name, they are just as well usable for most other 3D printers. There's an active Discord channel and a Facebook group around the Mellow Fly boards, and the Duet forum is excellent if you're looking for input on firmware configuration. Team Gloomy, responsible for the RepRap firmware port, has a great guide to perform precisely this Ender-3 conversion. The boards are called MELLOW Fly E3 because they're meant as a drop-in replacement for Ender-3s with compatible JST connector sockets and the same hole pattern. They are running powerful STM32 microprocessors for RepRapFirmware, have integrated WiFi with an external antenna, and plenty of IO-ports for fans, thermistors, sensors, and different types of screens. There are two versions of it: the normal E3, which I also used and has replaceable stepper drivers, and the newer E3 Pro version has integrated and five instead of four TMC2209 stepper motor drivers with additional improvements. Simply put, the Mellow FLY RRF seems to be a cheaper version of the popular DUET 3 Mini 5+ because it sells for only around $60.
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