I’m building a 3D printer and have a few questions for community I already build two of them and sold them, they are both for large scale printing. Now i have a bit of money, knowledge and time to start modelling a new upgraded version. Printer has a build volume of 1000x1000x1000mm.
Now printing speeds are around 50mm/s, I want to reach 150-200mm/s, which means reducing weight of cartridge. Printer has Cartesian design.
:arrow: dual exstruder (Up till now I always put two nozzles, which means that I need two motors. This is something I want to keep while one nozzle is printing support from PVA and other prints actual print from ABS,PLA or Nylon)
:arrow: water cooling
:arrow: I aim for cartridge to have 500g (the best is even less) and defiantly will use direct drive system while i lost half of my hair to bowden configuration. Cartridge would be water cooled, (up till now i used peltier element for cooling down, but with cooling ribs, fan it quickly went up to 300g just for cooling the peltier down). For now i use nema 17 motors, but i dont know how to measure or calculate torque necessary to put filament trough nozzle. Nema 17 alone is 350g and i would like to use nema 11 with planetary gear. Here https://www.omc-stepperonline.com/geared-stepper-motor/nema-11-stepper-l31mm-w-rear-shaft-and-screw-hole-and-gear-raio-51-gearbox-11hs12-0674d1-pg5.html?search=nema%2011%20 they say it weighs only 110g! but would it have enough torque to put 2.85mm filament trough nozzle?
:arrow: Do you think it is possible to reach speeds like that with requirements described ?
anyways, thank you for your answers!