Modified kraken home made 3d printer

thingiverse

I'm designing a 3D printer on SolidWorks, with a goal of reaching 800mm in X, 400mm in Y, and 500mm in Z. I'm open to suggestions and ideas. My design draws inspiration from the Ultimaker 2 for its X-Y motion mechanism. As for the Z axis, I'm open to opinions on how to best approach it. Based on my initial calculations, I suspect that I'll need a control board compatible with Marlin's master-slave configuration. For the gearboxes and stepper motors, I'm considering whether to opt for a Yes or No, as well as choosing suitable sizes. The linear rods will likely feature M12 dimensions paired with LM12LUU bearings, accompanied by radial bearings for end support. Belt-driven motion will be employed for both X and Y axes, utilizing GT2 pulleys. The motors themselves will boast 18-tooth GT2 pulleys, while the rods will be equipped with 36-tooth pulleys, establishing a 1:2 ratio. The Z axis has been set up with an anti-backlash lead screw of M12 size and 3-pitch configuration. Drawing from experience with high-performance printers like the E3D Kraken, I've designed my hotend accordingly. Additionally, heater blocks have been based off the V6 design, manufactured from copper before being nickel-plated for durability. The decision to chrome-plate has left me pondering – is it a necessary measure to prevent sag on the X-Y axes? Let's hear your thoughts in the comments!