Hello @ all. I have a problem with solidworks (i use in this moment 2007 version). I have some step file thats and must be create a drawings. when i to try dimensioning arc or circle appear message that is impossible to convert entity in arc or circle .....
Are you sure the arcs are really arcs? Or are they B-splines that are shaped liked arcs. there is a difference (SW will not dimension B-splines as arcs).
I discovered a strange thing about STEP files. It is possible to convert B-surfaces in some STEP files into cylinders and planes. After importing the STEP file, do a "Save As" to STEP 203 formoat (not STEP
214). Then import the STEP 203 file back into SW. Sometimes that makes entities convert to something simpler and more useful.
Ok i done your procedure bat with not satisfy result. In effect the entity is not a really arc or circle in the 3D but is only a cord or b-spline (i think)
But if i save as drawing with dxf format and load with sw , all entity like arc i can dimensionin with arc/circle. I think that sw , in drawing , make in the sheet an exact copy of 3d and not a projection of entity on a plane view. You can see the drawing view in same mode as you can see the 3d . (example , hidden line , shade view , shade view with-out edge , ecc ecc )
I hope that my explanation it's clear. For any dubt please let me now.
Too bad. Sometimes the "STEP 203" trick works, and saves a lot of time. Interesting that the DXF conversion would result in arcs.
Another workaround is to sketch arcs in the drawing that are constrained to model edges. For instance, if a rounded corner does not present itself as an arc, sketch an arc over it and constrain points of the sketched arc to the model edge to create a best-fit arc, and then dimension to that.
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