Hey everyone!

I'm a bit new here but I had the wonderful suggestion from a friend to get on the forums for some ideas.

Long story short I'm looking to build my own printer from scratch. A large one. I've already picked up basic frame pieces to build the structure, but as far as the hardware goes, I don't know where to start! As well as some of the software, but I have a few ideas and suggestions there. Any ideas would be greatly appreciated. The goal in the long run is that I want to be able to print large items, To give an idea my frame is 3x3x6 tall. Yes this is massive comparatively to most home owner 3d printers on the market. What I ideally want to be printing is customized guitars and Cosplay items. So far I have ordered 3 stepper motors, 3 stepper motor drivers, 4m of belt, 4 gears and a 24v power supply. I assume I ultimately need some sort of a controller/control board and a screen to see progress? I also still need to get the rods for the motors to drive on, an extruder and a bed which im assuming I would need to be customized.

So ultimately advice I need:

Software

controller/ecu?

Rod materials

Bed material

extruder suggestions (looking to use PLA mainly, but other ideas or possibly a metal capable one?)

LCD screens?

any thing im missing?

Thank you in advance everyone! And please... be easy, im a beginner at this trying to shoot for the stars and I know it.

Sincerely,

~CJ