I have a similar problem: I’m working with an 5 axis CNC machine, but it has a limited rotating movement around the Z: 0-180 deg. My CAM software does not matters the limits, it does not spliting the calculated toolpaths to smaller segments, so i have to do the job on the model. I figured out that i can split the surfaces on quads: Running Contour command on the surface in Z direction, then i drawing a curve on the Osnap Quads.
- Snap Crv Point To Projected Curve On Surface 2
- Snap Crv Point To Projected Curve On Surface Pro
- Snap Crv Point To Projected Curve On Surface Pro 4
I like to automate this procedure, at least for extruding the quad points. Can i do this anyway? Ps.: sorry for englisch. Hi, I ran into the same situation, where I needed to find all the Quads in a curve.
Snap Crv Point To Projected Curve On Surface 2
Using Grasshopper, I could find all the “Extremes” in 3 planes. But there are still 2 “Quads” not found by Gh (the Q dots in the images attached). I’m not sure what exactly a Quad is in Rhino, or even if I did something to find an actual “Quad”, I just know I need to find/setpts on them. (Also, I don’t know if I should be posting this as a new question, as my issue its not Dev related, but I was starting a new thread when I saw this one) (31.6 KB).
Once you have the curves you can start generating the surfaces. Although you can make almost any kind of shape and create extremely complex designs the technique of generating this complexity is quite simple. This has to do with the fact that there are no more than 4 main techniques of generating shapes from curves. If you know these four techniques you can build almost anything. The first option is the extrusion of a curve. This can be a closed curve like the example or an open curve. The form freedom which you have with this option is limited to the shape of the curve and the height of the extrusion.
The sweep 1 rail increase the form freedom because the direction of the extrusion can be varied. This gives you more possibilities to alter the final outcome of the shape than the straight extrusion.
The shape can have different sections. The loft is in this set one of the most powerful modelling options. You not only can change the section over the height of the shape but also the location of the sections.
Snap Crv Point To Projected Curve On Surface Pro
This option can generate very simple complex shapes. The last option is the simplest.
It will generate a surface on the inside of a closed flat curve. Surface Connect surfaces: Extends the surfaces till they connect. Cutting surface If you want to cut a curve in separate parts you will have to define the point where the curve has to be cut. This can be done by defining a point on the curve or one could use a cutting line. However defining a point on a surface is useless if it has to be cut. However a line can also be used as a cutting line on a surface.
The line should define a closed area on the surface or a segment on the surface. Once the curve is defined you can use the Split or Trim function to cut out a part of the surface. Trim and Split.
Curve Curve From Objects Duplicate Edge: The edge of the surface can be selected. The edge for example can be used to build additional geometry. Curve Curve From Objects Duplicate Border: The border of the surface is selected. This option can be useful to cap an object or use the curve to create the edge of the object in 3D. Both options copy the edges of the geometry of the surface and are often used to form a basis for capping the geometry.
The difference is that the Duplicate Edge option gives you the possibility to select the edges by hand. Not only the open edges but also the side edges of the geometry. Duplicate border will select automatically only the open edges of the geometry. Curves from extractions In contrast to the Duplicate option, the extraction of a curve depends on the definition of the shape by its isocurve.
The option of extraction will enable you to extract curves from the surface. Curve Curve From Objects Extract Isocurve: This option makes it possible to extract an isocurves from the surface. Please check the command line to toggle between the u or v direction of the isocurves. The isocurves can be then used as a basis for new geometry or as a cutting line on the geometry. Curve Curve From Objects Extract Wireframe: The wireframe are the visible isocurves on the surface. When the command is executed all the isocurves and edges will be extracted and converted into curves.
With these curves the surface can be rebuild or adjusted by adjusting first the curves and then rebuild the surface. Additional edit options are similar to the options for the curves. Participants wanted for mac free.
This reason for this is actually quite simple. A NURBS 2D surface is, to place it simply, a 2D derivative of the 1D curve. Most of the mathematics behind the curve are similar to the surface. The result is that a whole range of curve tools are also applicable to the surface, taking in account that it has an extra dimension. Surfaces Extend Surface: Several options for extending a surface. Surfaces Fillet Surfaces: makes a fillet between two surfaces (rounding of the edge).
Snap Crv Point To Projected Curve On Surface Pro 4
Surfaces Chamfer Surfaces: This makes a bevel(straight edge) between two surfaces. Surfaces Variable Fillet/Blend/Chamfer Variable Fillet Surfaces: As above but with more options. Surfaces Variable Fillet/Blend/Chamfer Variable Blend Surfaces: It is similar with Variable Fillet Surfaces, but has more control points.