I modeled an object in Blender intending to print it, but when I import it into PrusaSlicer or Cura, the dimensions don’t quite match.
In Blender, the dimensions are 178mm x 142mm, but when I import it into Cura or PrusaSlicer, it imports it as 180 x 138mm. I can manually adjust the dimensions, but why is this happening? And will it mess up my fit in the end? Who do I trust here? I don’t want to waste hours printing for nothing.
Blender is not CAD software and it’s very difficult to get precise dimensions.
I would suggest learning to use proper CAD software. you can get a free ‘hobbyist’ version of autodesk fusion 360 that’s fairly cut down. (it lacks things like simulation and substantially more advanced features.)
other options include solvespace and freecad which are both FOSS- Free cad is powerful, but really difficult to learn- with OpenFOAM integration to solve simulations (like force loads, and such,)
OnShape shape is like a shitty version of F360, IMO, with the caveat that it’s free version also publishes your models publicly for anyone to see and use.
Solid Edge is also comparable to F360 (though I haven’t used it,) and it has a “community” version that’s similar to F360’s cut down version.
