Apologies if this is answered somewhere else but a forum search didn't bring anything up.

I've just acquired a Dremel 3D45 which arrives on Monday. In preparation for its arrival, I've been busy modelling away in TurboCAD. I've downloaded the Slicer and have been importing and tweaking and have a few questions I'm hoping someone here may be able to answer:

I've been saving my 3D model as STL for import into the Slicer. The only other format compatible with both software seems to be 3MF. Is one preferred over the other?

I'm modeling in inches. When I import the STL into the Slicer, it's using mm. So the first thing I have to do is scale by 2540%. Then if I import another model, it automatically scales by 10000%, which I then have to rescale to 2540%. Is there anyway I can change my units of measure in the Slicer to be inches? I'd rather not switch to mm in TurboCAD as my printed plans (and 2D DXF) files assume material of varying Imperial thicknesses - 1/8", 1/4" etc

Thanks!!

Martin