Since you mentioned it's for laser cutting, I added some components that place the beam outlines neatly in the ground plane: http://grasshopper3d.googlegroups.com/web/projectbeams (2).jpg Btw, ignore the previous comment. The slope happens perpendicular to the outline of the beams. Since the objective is to achieve only the outline of the beams, this is not a problem.
On Oct 24, 8:25 pm, visose <[EMAIL PROTECTED]> wrote: > Btw, i don't think the method i used to create the notches is the most > appropriate since bottom of the opening will have the same slope as > the top of the crossing beam so they won't fit tightly. > > On Oct 24, 7:50 pm, visose <[EMAIL PROTECTED]> wrote: > > > It's true, the boolean difference doesn't work with extruded surfaces. > > I created a boolean difference script with the VB.NET component and > > also doesn't work, so the problem may be either from the boolean > > difference sdk (which i doubt) or from the extruded surface component. > > I couldn't find an example of how to script a extruded surface in the > > wiki. > > > Nevertheless, I recreated a definition of what I think you are trying > > to achieve without extruding a surface. Maybe It will help > > you.http://grasshopper3d.googlegroups.com/web/woodframe.jpghttp://grassho... > > > On Oct 24, 4:54 pm, Rchitekt <[EMAIL PROTECTED]> wrote: > > > > Thanks. I'm still unsure why the boolean difference isn't working on > > > this file. I made a separate file where I had a cube and a shpere as > > > two Breps... and then I used the Boolean Difference to "trim" out one > > > from the other, and it works like you think it would. Only, when I > > > try that in this file, it doesn't seem to work. I've been extruding a > > > planar surface to give me a closed Brep. Both the Notches and the > > > extruded struts show that they are closed Breps, and yet when I use > > > the Boolean Difference component, all that I get is a empty Brep set > > > as a result. Any ideas? > > > Thanks, > > > Andy > > > > On Oct 24, 12:36 am, David Rutten <[EMAIL PROTECTED]> wrote: > > > > > Hi Andy, > > > > > trimming is always a bit more tricky, if only because it's not clear > > > > which remaining parts you want to keep. If you're trimming a single > > > > surface with a closed loop, it's not ambiguous, but otherwise... > > > > > I'll look into adding a bunch of trimming components, for I doubt that > > > > one will do the trick. > > > > > -- > > > > David Rutten > > > > Robert McNeel & Associates > > > > > On Oct 24, 1:23 am, Rchitekt <[EMAIL PROTECTED]> wrote: > > > > > > David, > > > > > I see that there is an "Untrim" surface component in the last install, > > > > > but is there a trim command that I could use in this case? Would it > > > > > be something that will be released in the new version? Or should I > > > > > try to make some sort of work around? > > > > > Thanks, > > > > > Andy > > > > > > On Oct 23, 1:18 pm, Rchitekt <[EMAIL PROTECTED]> wrote: > > > > > > > I've been working on a waffle system that creates an "egg crate" > > > > > > structure from any set surface in Rhino. It has parametric sliders > > > > > > to > > > > > > control how far you want to extrude the surface, the number of > > > > > > divisions in the x and y axis and the material thickness of the > > > > > > actual > > > > > > struts. Ideally, this definition would be used to create laser cut > > > > > > models of any surface, and the notches would be already put into > > > > > > each > > > > > > strut. I'm having one small problem. I've generated the boundary > > > > > > curves (the strut outline) and I've been able to create the notches > > > > > > based on the material thickness. My problem is I can't seem to join > > > > > > the two... meaning, I can't seem to trim out the notch portion of > > > > > > the > > > > > > boundary curve and get one unified curve that could be immediately > > > > > > sent to the laser cutter. I've tried to create solids out of the > > > > > > struts and the notches and doing a boolean difference, but it didn't > > > > > > seem to give me any kind of usable output. I'm very close to > > > > > > finishing this script and I'm just curious if anyone could help me > > > > > > on > > > > > > this last step. Here's a link to the screenshot of how the script > > > > > > workshttp://grasshopper3d.googlegroups.com/web/waffle%20system_01.jpg?hl=en > > > > > > And here is a link to the > > > > > > definition.http://groups.google.com/group/grasshopper3d/web/waffle%20system_08.g... > > > > > > Thanks for your help in advance. > > > > > > Best, > > > > > > Andy
