How to create groove line depth in Rhino?

How can I create such a groove line(rectangular) along the outer edge of lets say an alphabet letter for example. how would you do this?


H.3dm (85.8 KB)

Hi Omega,

I offset your curve using OffsetPolyline from the Clipper addin (available on package manager)

then made a surface by selecting the 2 curves and using the PlanarSrf command before gumball extruding it in the Z, then BooleanDifferenced


Re_H.3dm (1.0 MB)

almost getting it to work, curious of the extrude part.
Made a surface using the planarsrf, but then after clicking away, what do you select and extrude?

H3.3dm (637.8 KB)

If you select the dot in the middle green arrow as you drag in the direction you can enter in the distance to extrude.

Gumball has lot of options and can be tricky at first.
https://docs.mcneel.com/rhino/7/help/en-us/index.htm#commands/gumball.htm?Highlight=gumball

ExtrudeSrf is the non-gumball command

1 Like

Whoa, I just learned that you can enter distances directly in the gumball
… after using rhino for 7 years or so :joy:
Thanks

Makes total sense, how can i take the boolean-ed surface seperely to add a differernt color for example?
Basically the groove inside to have an infill color different in another software like keyshot

OMEGA,

I’m not familiar with the particulars of keyshot import, you should be able to change the layer/material and have it pass through. Hope that helps.

Hi @Omegaalpha12433
For Keyshot you need to actually separate the surfaces before you inport them in Keyshot. Simply use ExtractSrf (And join if you are extracting multiple surfaces with shared edges), and maybe even assign separate materials in Rhino, so that the different parts already have individual materials upon import; this goes for importing both 3dm and obj files in Keyshot. Another option is to use Keyshot’s mesh tools, but I must admit I find them (even) worse than Rhino’s.
HTH, Jakob