Hello Guys,
my main frame (3000mm x 1650mm) is finished (400kg weight until now), and soon i will start to build the gantry (pre version). Travels will be (depending on the gantry size) at least 2600mm x 1300mm
I will use ball screws on all axis (2505 on Y - long axis / 2005 on X-axis / 1605 on Z-axis), but for the long axis i will use rotating nut instead of rotating screw, so i want to start order aluminium plate to build the rotating nut system parts, but currently i am wondering what size steppers i should use.
The pre-version gantry with Z-axis and all parts will weight for sure more than 100kg (later i want to build something heavier when the cnc router is ready to cut in metall), so i dont know if 3.1Nm would be enough. Of course they are cheap and thats a big plus, because in the first year when the router is finished i will do only privat jobs so i dont have to worry about time. Later i would (maybe - if neccesary) update to closed loop Leadshine hybrid steppers or servo motors, so i dont want put much money in parts which i will later upgrade and sell, but also i dont want to be disappointed with the results when choosing too small steppers.
Hope you can help me out with that, because slowly i would like to order the parts
Here are some pictures of the build and finished frame . On those pictures are missing some welds, because i first did fix all tubing with small welds and later i finished them (yesterday).
Just as info info: I did mount the rails just to check if i drilled all holes correctly. I will use epoxy to level the frame for the rails.
Thanks in advance!