PurrDaddy
  • Saint Paul, MN
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Industrial Design Workflows, what are you doing?

We are experimenting with methods to improve our industrial design workflows. Rhino is an option. What are others folks methods?Our workflow goes like this:1. Ideation and concept drawings are done…Continue

Started Mar 21

How do you draw a spline perpendicular from a surface?
17 Replies

I have asked this question before and I am still not sure how to do it. I have two surfaces at any angle.  I want to be able to draw a spline that starts perpendicular from one surface and ends…Continue

Started this discussion. Last reply by PurrDaddy Mar 18.

Sweep and Loft controls
3 Replies

In SolidWorks the controls of Sweeps and Lofts is significantly different than in Rhino.  In SW there are guide curve and end point controls.Is the process that different in Rhino or am I not using…Continue

Started this discussion. Last reply by Chris Tietjen Mar 14.

Controling splines
3 Replies

How do you control a spline to make the end points perpendicular to a surface?  Continue

Started this discussion. Last reply by Helvetosaur Feb 11.

 

PurrDaddy's Page

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PurrDaddy posted a discussion

Industrial Design Workflows, what are you doing?

We are experimenting with methods to improve our industrial design workflows. Rhino is an option. What are others folks methods?Our workflow goes like this:1. Ideation and concept drawings are done in Photoshop. Overlays from former CAD files (SolidWorks and Unigraphics) maybe used to give scale to the sketches. These sketches are done in a perspective view.2. Once the design is agreed on, Photoshop is used to create concept orthographic views.3. The orthographic views are used to create…See More
Mar 21
0 Comments
PurrDaddy replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"Alright, This is really helpful.  I think we should call this topic finished.  I'll try my hand at a simple script this week and show it off in a new formum topic, no matter how simple.   Thanks, guys. P"
Mar 18
Helvetosaur replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"Rhinoscript is based on vbScript (not VB) they are two different animals, although the syntax is similar in a lot of cases.  VBScript is quite a bit easier and but less powerful - however for most Rhinoscripting tasks it's more than…"
Mar 18
Chris Tietjen replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"The Rhinoscript editor is built-in in Rhino 5.  You'll find it at Tools>Rhinoscript>Edit.  If you already understand VB then you shouldn't have any trouble with coding Rhinoscript which is based on VBScript."
Mar 18
PurrDaddy replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"H, I'll give your code a try this evening and let you know if I ran into any problems.   Thanks, Peter"
Mar 18
PurrDaddy replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"Chris, Thanks for the excelent introduction to Rhino Scripting.  I have not had time to look for it, so I'll just ask, is Rhion Scripts an add-in or is it within Rhino 5.0?   I had noticed it looked like VBA, I am glad that it is…"
Mar 18
Chris Tietjen replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"When you open the Rhinoscript editor this is what you see.  On the left you have expanding folders that contain the Rhinoscript methods that are available.  On the right is the editing window with the basic syntax in place to start a…"
Mar 17
Helvetosaur replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"different approcaes, and overlapping.  there are some things you can do in GH that are very complex or difficult to do with scripting and there are things you can do with scripting that you can't do at all in GH.  There are also lots…"
Mar 17
nonesuch replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"This approach seems to work for me under build 5.1.30129.1756. Using cplane inside the curve command makes the cplane coplaner with the second surface even though the first surface remains selected, so you can still use elevator mode to draw a…"
Mar 17
PurrDaddy replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"H, Thanks for the script, this is just what I needed.  I don't know how to use it yet but it is an example of where I'd like my CAD skills to go.  I will use this as a jumping off point for learning scripting.   Do you know…"
Mar 17
Helvetosaur replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"Here is a hacked together scripted implementation that used the Rhino command BlendCrv.  Note that once the curve has been created, before you hit Enter to accept, you can adjust it inside the BlendCrv command.  The script assumes that the…"
Mar 17
Chris Tietjen replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"There is a command called '_Conic' that does what you're describing regarding the start/tangent-end/perpendicular method."
Mar 16
Chris Tietjen replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"This kind of thing can usually be done with scripting. "
Mar 16
PurrDaddy replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"H, This seems to be a good solution.  I can work with that.  It is a bit clumsy but it achieves the results I want.  Thank you.   Chirs, Great Illustration.  This was very helpful.  Thanks.   Back in the days of…"
Mar 16
Pascal Golay replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"My thought was to use Cplane>Surface to set cplanes to the surfaces inside the Curve command and use these to set the curve points with Ctrl (Elevator mode). However, this falls down because while  CPlane >Surface works fine for the first…"
Mar 15
Helvetosaur replied to PurrDaddy's discussion How do you draw a spline perpendicular from a surface?
"Thanks for the illustration! ----H"
Mar 15

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Company, School, or Organization
Lorco Product Design
I am a
Commercial User
Which operating system do you prefer?
Windows
Discipline/Occupation
Industrial Design, Mechanical Design, Rapid Prototyping

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