whats a good 3D program that will allow me to cut up 3D models in to smaller prints. I looking for this due to the 3x 29hr to 30hr prints that failed badly.
MeshMixer is free and easy to use to cut models.
Netfabb Free is super fast, free, and easy to use.
It has sliders for X, Y, & Z axis so you can just move slider to where you want to make the cut, click apply, and then it creates 2 parts. You export both parts and you’re done. No mucking about with hole filling, selection tools, watertight, bla bla bla, just cut, export, print.
Handy .pdf right here:
Microsoft 3D builder is free and has a “Split” function to do this.