Bad STEP import V6 correct V5!

Rhino Rhino for Windows
1

When I import the attached step file from Fusion the through holes have an extra cylinder inside.

V6
image
V5
image
CoreWireBlock.step (185.5 KB)

Thanks Mark

2

Hi Mark - I see this, thanks.
It looks like the holes have incorrect trims - if you untrim the cylinder it takes the right diameter. I’ll get this on the pile, thanks.

CoreWireBlock.3dm (397.9 KB)

https://mcneel.myjetbrains.com/youtrack/issue/RH-44286

-Pascal

3

Hello!

If I open step files —one or another solid is missing. (Rhino 6)
No problems with the same objects in Rhino 5.
Why do You release a software that´s obviously very buggy?

Best
Simon

4

Hi Simon - if you have an example step file that shows this, please post it here or send to tech@mcneel.com.

thanks,

-Pascal

5

Hello Pascal,

import option works correctly for .step, .sldprt, .sldasm,
however in 5 it was possible to open .step directly without any problems.
(solidworks 2017)

Thanks
Simon

6

Hi Simon - so the problem you see is Open as opposed to Import, do I understand that correctly? It may be fixed in the latest, I’d like to try one of the files that has given you trouble…

thanks,

-Pascal

7

RH-44286 is fixed in the latest Service Release Candidate

8

@brian Just made a test file and holes seem OK with the latest SR. I also wanted to test how tori import as V5 has problems with Fusion’s step files. The fillets made from trimed tori don’t show any iso curves, is that expected? Shrink makes the display how I’d expect.
image

temp.step (49 KB)

Thanks Mark

9

Hi Mark - I think that is expected - if you untrim one of theses you’d get the full torus.
@Hughes_Tooling - is that torus floating in the middle expected or is it meant to be trimmed by the cylinders?
Never mind, I was in V5… Sigh. Is it Friday yet?
-Pascal

10

The Fusion export was updated a couple of months back and broke Rhino V5 import of tori. I think in the past the export shrank the tori and that’s why it looked different in V6. After untriming as you suggested I understand what’s happening now.

Thanks Mark

11

@pascal Just testing some more with tori and the attached file fails to import correctly.

image
image.png760×618 9.84 KB

Should look like this.
image
image.jpg352×568 19.3 KB

Thanks Mark
temp.step (7.1 KB)

12

Hi Mark - got that, thanks.
https://mcneel.myjetbrains.com/youtrack/issue/RH-44467
-Pascal