I’m using Rhino 5 and am trying to split a closed polysurface but am unable to do so. File linked below. I want to be able to split this file into different sizes to be able to put 4 of the extrusions together to make different frame sizes
Since it’s a STEP file, my guess is it imports as a Block instance in Rhino.
If you select it and look at it’s Properties, it will tell you.
To replace a Block instance with entities, Explode it.
STEP files use Blocks much like Rhino uses Layers, so you may find that Exploding the top layer Block, results in more nested Blocks, which in turn will need to be Exploded.
You can Split Curves and Surfaces.
You’ll probably need to Explot the imported blocks until you get Curves and Surfaces.
Any luck?
Just tried to explode the closed polysurface and that worked but the split still did not, thanks for the suggestion though!
Hi Ang -
Since there was only one object in the STEP file, it came in as a polysurface and not a block.
I don’t have Rhino 5 installed on this computer and don’t seem to be having issues splitting the object at arbitrary locations in Rhino 8.
Are you splitting at specific locations? Are the planes that you use to split with big enough and extend well beyond the object?
You could try to use the Intersect command on the object and the cutting plane and examine the resulting curves to make sure they are all closed or end up on an edge.
Note that when you explode the polysurface, you’ll need to split every surface of that object.
-wim
I got Rhino 7 and was able to do it there. Not sure what the issue was when trying to do it with Rhino 5.