Thanks for replies from everyone. When I first read I only saw Michael and Mip but now after writing this reply I see a few more ( not sure how I missed ). I will take a look at the suggestions and respond. I should have been clearer about what the problem was in my original post but Mip correctly identified.

Thank you.

Hi Mip,

re:
> All the dxf I tried to import into FreeCAD had a misplacement of one of the shapes, most
> of the time the bottom left small circle.
> Whatever option I chose, there was one more shapes missing or misplaced (see attachment).

The circle misplacement is from a bug in FreeCAD's DXF importer when it processes planar objects with a plane normal going in negative z.

There is a setting in moi.ini which you can turn on to make Moi flip these objects to avoid the FreeCAD importer bug:

[DXF]
<....>
FlipNegativeZAxisCirclesAndArcs=y

It's not on by default because when the normal is flipped the curve's direction also gets flipped which is bad when someone is trying to control curve directions for CNC usage.

If you want to report the FreeCAD DXF import bug tell them that the problem is likely that they are not precisely following the AutoCAD "arbitrary axis algorithm" for normals pointing in negative z.

Arbitrary axis algorithm is here:
https://help.autodesk.com/view/OARX/2024/ENU/?guid=GUID-E19E5B42-0CC7-4EBA-B29F-5E1D595149EE

- Michael

Hi Sven,

re:
> I should have been clearer about what the problem was in my original post but Mip correctly identified.

Ok, I see now that it's that one circle being misplaced.

So that's going to be the same kind of DXF import bug as Mip ran into with FreeCAD where the DXF importer is not properly processing planar objects that have a plane normal going in the negative z direction. That will happen with circles that have been mirrored.

It's a relatively common DXF import processing bug, you can fix it by changing a setting in moi.ini which will flip those circles to avoid running into the bug.

In MoI go to Options > General > "Edit .ini file" button and then moi.ini in the [DXF] section set:

[DXF]
<...>
FlipNegativeZAxisCirclesAndArcs=y


If you want to report the bug to the Front Panel Express authors tell them that it's not following the DXF "arbitrary axis algorithm" in the case of a normal going in the negative z axis direction.

Arbitrary axis algorithm is here:
https://help.autodesk.com/view/OARX/2024/ENU/?guid=GUID-E19E5B42-0CC7-4EBA-B29F-5E1D595149EE

- Michael

Thanks to everyone for interesting experiences and dialog about the problem. The minimalist approach from AlexPolo sounds like a good fallback as well that I'll try. I've forwarded your explanation Michael to the their technical support. Thanks too for providing a config to workaround the problem.

Sven