Stepup error "not fused ('union') in single part ..."

Software
1

Hi,

I’m trying to convert a pcb to mcad step with stepup.

To generate the part to have 1:1 scale do:

  • select all
  • part -> boolean -> union

DRQ127.stp (1.1 MB)

When try generate the mcad get this error:
“3D STEP model DRQ127 is NOT fused (‘union’) in a single part …”

How can do to fix?

Thanks

2

Hi,
your part is not fused correctly… (always reload your part after a fusion to check it)
in some cases FC doesn’t make a union of parts because of OCC kernel
as pointed out in the StepUp starter guide here there are some tips to fuse correctly objects in
FreeCAD
http://forum.freecadweb.org/viewtopic.php?t=8451#p69489

In this case the problem is in your model which is done as open faces and not as solid…

1232×881 96.9 KB

The union operation only works well on solids.
Unfortunately not all manufacturers will offer real MCAD models
possible solution:

  1. create yourself a 3D model
  2. get the model from a different source, checking if the model is a solid part
  3. search for a 3D of a similar part

Note: the topic should be "StepUp error message: ‘not fused (‘union’) in single part…’ "
it is not a bug but a warning message to help users

Maurice

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