Still seeing MM and not inches

jack_erhart

I changed my prefrences to show imperial inches, but when I draw a line or any other shape, it shows in MM.
The CAD drawing I imported into my document was drawn in MM.
Is that the issue?
And how do I scale a full sized CAD drawing of locomotive parts to the size I want to model?

Thanks.

NeilCooke

There are unit preferences (for new docs) and workspace units (existing doc, menu next to Onshape logo)

jack_erhart

Thank you. Any insight on scalling a CAD drawing?

dirk_van_der_vaart

https://forum.onshape.com/discussion/16804/cad-file-scaled-for-use-in-drawing-3d-model#latest
About scaling , including explanation.

jack_erhart

I'm not sure if we are on the same page. The CAD drawing I have for a locomotive was drawn in full scale. In other words the actual size of the locomotive. What I'm asking is, how do I scale all the components in the one drawing so that they all scale down to the scale I want?

Example.

I'm doing 3D printed models that are about 3' long. Proportionally, do I go into the imported CAD drawing, pick something like an overall length and use the dimention tool to change that, exspecting everything else to size properly?

S1mon

I would model everything at actual size, and then at the end of the model tree scale the model to whatever scale you want to export a STL file. Scaling is part of the transform tool.

https://forum.onshape.com/discussion/7179/part-scaling-in-onshape

jack_erhart

S1mon said:

I would model everything at actual size, and then at the end of the model tree scale the model to whatever scale you want to export a STL file. Scaling is part of the transform tool.

https://forum.onshape.com/discussion/7179/part-scaling-in-onshape

Thank You.

I'm not sure if we are on the same page. The CAD drawing I have for a locomotive was drawn in full scale. In other words the actual size of the locomotive. What I'm asking is, how do I scale all the components in the one drawing so that they all scale down to the scale I want?

Example.

I'm doing 3D printed models that are about 3' long. Proportionally, do I go into the imported CAD drawing, pick something like an overall length and use the dimention tool to change that, exspecting everything else to size properly

S1mon

Why not model it at full scale using the full scale 2D as reference, and then scale the 3D at the last feature? Is there any value to modeling at scale?

jack_erhart

Now that I know the method for scaling after modeling, your workflow suggestion is what I will try to incorporate.

Thanks again for your help.