When it comes to 3D printers, there are three firmware options you can run: Klipper, Marlin, or RepRap firmware. Most printers are shipped with a customized version of Marlin configured for the specific hardware and manufacturer’s branding. If you decide to modify the printer, you will likely have to flash the firmware. Let’s look at their differences and why I prefer Klipper over the others.

TwoTrees Sapphire Plus (SP-5) comes with Marlin based firmware which I found quite inconvenient to use. My main complaint was that I had to recompile and reflash the firmware every time I changed my printer configuration. I decided to throw it away and switch to Klipper instead.