i recently bought a Geetech Prusa I3 as my first printer. So i am new to 3d printing. Soon i will start building this great design and to test the printer accuracy i printed one of the 25mm corner blocks. As you can see in the pictures the overhang didnt print well. The rest of the part printed really accurate in my opinion with 0.35mm nozzle, 0.2mm height, 195°C hotend and 50mm/s speed.
I also want to build the machine with 25mm alu conduit because 25mm steel pipe would be more expensive. Will this be rigid enough?