test.rar (1.4 MB)
Hope you’re all doing well. I’ve been having trouble creating a parting line and surface for my model, which has been preventing me creating the core and cavity. I was wondering if anyone could assist me in learning how to do this in Rhino? I watched the tutorial videos, but still had no luck with it using my model. I attached it to this post.
Thank you in advance!!
Any ideas on this one?
It looks like a candidate for the new parting line tool.
Hi Solomon -
DraftAngleAnalysis should help here.
As pascal noted above, once you create your draft curves, you will use the new _RibbonOffset tool-
this will allow you to create the curves you will need to make your shutoff collar. Once you have your parting line and the offset, 2 rail sweep can be used to create the actual shutoff surface itself.
then it’s a matter of blending this surface into your mold halves-
see this video
and this simple video with the basic steps outlines-
Thank you! the parting line looks great! Unfortunately, when I try to use the ribon offset it does not allow me to select the new curve
My apologies. I am very new to Rhino
no worries, make sure your parting line curve is closed before running ribbon offset.
also note, you have some undercuts that need to be fixed-
Thank you and apologies for the late response. attached please find images of how far I got. Right now I am having an issue blending the 2 surfaces. it won’t let me select the whole surface created by the ribbon offset to blend
use the chain edges = yes option in the blend surface command line
Thank you for the response! That’s what I’ve been trying to do, but unfortunately, it doesn’t seem to allow me to select more than 1 edge on the piece
send your file to firstname.lastname@example.org or post it here, I’d be happy to take a peek and see what’s missing…