Hi Burr,
> Can you look at the viacad import of this model? Exprort part as sat for a solid, then export part as dxf.
Do you mean the model attached to the first post of this thread? The issue is probably that it's set in MoI as "No unit system", and I don't think ViaCAD has an equivalent setting in it for "no unit system" so it probably decides to use some arbitrary default, and the default could be different for different file types.
If you set the units in MoI to one that ViaCAD supports (looks like: inches, feet, mm, cm, m) then it should likely work better.
> Or, is your dxf not writing out the units yet?
MoI does write the units to the DXF file currently, it gets written to a header variable called $INSUNITS which AutoCAD will use as the default settings for inserting the file as a block. It's the closest thing that DXF has to a units setting, and several programs will read a units value from it. I believe ViaCAD reads it from there if you set the option for File Units: "Extract From File" except I guess from what you're describing it won't recognize "no unit system" ($INSUNITS = 0) and will instead decide to use inches in that case I guess.
Let me know if any of that does not seem to make sense.
- Michael
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