Filet Nightmare

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 From:  Nicolinux
7629.1 
Hi,

I'd like to filet the outer edges of this object but I am having a very hard time to do so. I think the object is in a bad shape (it was exported from OpenSCAD to .csg and from there imported in FreeCAD and exported to .stp).
I saw this great post about filetting:
http://moi3d.com/forum/index.php?webtag=MOI&msg=7437.1

But I wonder if there is an easier way to accomplish it, without rebuilding the model. The filet works for some edges but not for all.

Thanks
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 From:  Mik (MIKULAS)
7629.2 In reply to 7629.1 
Hi Nicolinux,

it works procedure as follows:

choose model and use Edit/Separate then Construct/Boolean > Union.

One model has problematic area for filleting Const. Dist 1,5 mm, because one segment of filleting path has only 0,1 mm.

If this part is redundant, you can highlight only face (red) and use command Extrude > -0,1 mm.



After this you have to use command Merge (http://moi3d.com/3.0/docs/moi_command_reference10.htm#merge) because this edge is split.



After merging of split edges, you can do the filleting without problem.



Hope this helps

Mik

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 From:  Michael Gibson
7629.3 In reply to 7629.2 
Thanks very much Mik, for answering Nico's question!

@Nico - yes definitely as Mik writes trying to use a fillet radius that is larger than the available room for a fillet to fit in will be problematic.

- Michael
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 From:  Nicolinux
7629.4 
Many thanks! I followed the steps and it worked. I'll keep it in mind next time.

Btw. is there a way to detect those split edges? I guess that would be a script. I have looked here:
http://kyticka.webzdarma.cz/3d/moi/

And only "SelectNakedEdges" sounds a bit like it.


Thanks,
Stefan
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 From:  Michael Gibson
7629.5 In reply to 7629.4 
Hi Stefan, sorry no there is not currently any script set up to select split edges. Often though a split edge will still work for filleting but the fillet will also be split into one piece per edge.

Usually you can find split edges just from the selection behavior of what pieces get highlighted when you go to select edges.

- Michael
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