Ahhh, Andi. How well I remember the confusion I felt a year ago when I started learning about the world of CNC. You have mentioned in just a couple posts GRBl, Mega, Cura, CR10, TB6600 drivers, Rambo, Rumba, Marlin and more. It is all Very confusing. It depends on what you want to do in the end. Printing, Milling, drawing, vinyl cutting, glass etching, lasering, or more. Ryan’s choices of build, boards and software are made with a newbi in mind trying to ease us all into this complicated CNC world as simply and cheaply as possible with built in versatility. I have thanked Ryan in the past for his choices and based on what I learned in that process I have been able to venture more deeply into the CNC world.
If you want a turnkey system like so many out there, you get to pay++ and don’t learn anything, But you get to Play right away. I’m sure you’ve priced out other systems. It’s all about your choices and whether you want to put in the work to learn about a bunch of confusing stuff or just get on with it. Personally I prefer to understand what’s going on so if there is a problem I can figure it out. It took me a while… and a lot of reading, and rereading, and questions. Good luck with your choices.
PS Estlcam is similar to GRBL that’s why GRBL is mentioned in his info when pinouts are discussed. The Rambo board has the stepper drivers built in which are plenty adequate for the Nema 17s so you don’t need TB6600s at all. An Arduino usually needs a CNC shield to plug into the top of it which will need the 4 little DRV8825 drivers to plug into That. They are enough to run the Nema17 stepper motors but have to have their amperage adjusted. Ryan explains on his site…
I have no affiliation with Ryan or Christian other than by using their products. Thanks again guys.