MoI discussion forum
MoI discussion forum

Full Version: Chamfers & Arch ?

From: Frenchy Pilou (PILOU)
7 May 2019   [#1]
Why we can't make perfect chamfers in one pass ? (maybe i miss something! :)

http://moiscript.weebly.com/uploads/3/9/3/8/3938813/arch.3dm

Triangles are not wanted!




Not evident to find the good measure for have the perfect fit even in 2 passes!!



Wanted! (but here in 2 painful passes) :)

From: Michael Gibson
7 May 2019   [#2] In reply to [#1]
Hi Pilou, this has to do with how fillets and chamfers are defined to work in CAD programs. In CAD a fillet or chamfer surface is defined as being a intersection between 2 offset surfaces. This means that when you have surfaces at different angles to each other the chamfers that are generated will be different widths where they intersect each other unlike what you want.

So unfortunately the regular CAD type chamfering just is not set up to do what you want here, you would need to use some other means to make that type of result.

Usually there will need to be some room for a connecting juncture piece between 2 chamfers or fillets that are not tangent to each other, like this:





- Michael

Image Attachments:
pilou_chamfer1.jpg  pilou_chamfer2.jpg 


From: Frenchy Pilou (PILOU)
7 May 2019   [#3]
Thanks for the info!