I’ve been using Rhino to produce drawings for 2D machining for three years and love it… but I now need to get something CNC cut in 3D. I actually use Rhino for Mac; but I checked and found that this problem is also true of Windows - so I’ve posted here for the larger audience.
I’ve attached my job. It’s very simple… I use Rhino 5, my CNC contractor uses Inventor and Fusion 360. When I export in stp, iges, sat, or even give them my .3dm file, they open the job and get a lot of extra and often non-planar geometry. When I import in Rhino those same very files that I export… everything is fine. I sent it to another contractor who uses Solidworks - they also had huge dramas and had to heal some 130 surfaces.
I have tried every combination of export profile and setting I can think of. I’ve tried other formats like DXF and .obj. And today I downloaded the trial version of Rhino for Windows just to test it on there - same problem.
I could just make my model in Fusion 360. It’s a simple model, wouldn’t take long. But I’m very frustrated that - in 2017 - I can’t export a clean and simple bit of geometry and have them receive something that isn’t a mess.
Attached you’ll see the job as a .3dm and several screenshots of the problem as it appears in F360 (the bulges in the locators were more pronounced before I made the two parts blocks - now most of the issues are bulges in the overall perimeter).
It seems that Rhino is exporting additional information that it can read - as it reopens fine in Rhino - but clearly is outside of spec for each of these common formats and is being read as geometry, as all of these formats create false geometry in the same parts of the job.
What am I missing ?
Problem Export.3dm (784.0 KB)