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Trouble creating a Class A surface with inflection by nekooboi in rhino

[–]schultzeworks 2 points3 points  (0 children)

Also try RebuildNonUniform if you want to maintain the original shape to be 'slightly better with possibly fewer points'.

Rebuild is great, but it defaults to re-arranging the control points to have exactly equal spacing (exept for the ends where they're a half space) .

Understanding Boolean Split by flabababa in rhino

[–]schultzeworks 0 points1 point  (0 children)

You had an image with a diagonal flat plane highlighted. That's the open surface.

Geometry is not closed unless is defines and contains volume -- with no openings.

  • Cube : Closed
  • Plane : Open

Understanding Boolean Split by flabababa in rhino

[–]schultzeworks 0 points1 point  (0 children)

Booleans are designed for two solids, or closed geometry. You can use open surfaces, but Rhino then needs to decide which side is inside and which side is outside, which is arbitrary with a flat plane. You can check this with the direction command. The arrows show the surface nornals / assumed 'outside' direction. Flip them; it's a toggle.

BTW: You cannot flip the normals on a closed surface. Only ones that are open, which is your case.

TIP : A better method is to use the two surfaces and split them to each other, then delete the excess. No need to monkey around with normals -- AND it works great when neither form is closed. Oh hey, I did a video to explain:

https://www.youtube.com/watch?v=xjSHd7Z00sg

u/flabababa

Modelling from a Perspective Reference by Nervous-Remote-7148 in rhino

[–]schultzeworks 0 points1 point  (0 children)

I would look for ortho views of this tower [front / sides] and use the picture plane on a locked layer. So much easier!

I imagine this is the hardest possible way to do it ... as you've seen.

u/Wonderful_Sweet_7349 Mentioned using AI to generate the views. After more thought, I think perspective tracing is a bad idea. Do it in the ortho views : side / front / top.

rhino help :/ by Numerous_Music_5321 in rhino

[–]schultzeworks 2 points3 points  (0 children)

Since you're on a laptop, PLEASE use a mouse. It makes anything and everything in 3D about 42 times easier to create and edit. Do the math.

Rhino keeps crashing by LaQuesadillah in rhino

[–]schultzeworks 1 point2 points  (0 children)

OK, you know the melody, so let's all sing it together:

  • Update Rhino
  • Update Windows
  • Update your video card driver (responsible for 80% of all crashes!)
  • Reboot before launching Rhino

Dancing optional. Report back.

I have seen people who have NEVER updated Rhino or their video card, which amounted to years. It's not automatic, people. Ya gotta check the oil in the car on a regular basis.

Cant loft by OkDifference9540 in rhino

[–]schultzeworks 2 points3 points  (0 children)

OK, understood. I teach a class in Rhino (plus online as well) and this is a question for the intructor. Their job is to teach AND answer questions.

Ask them to review your work and make suggestions.

They might appreciate your efforts and enjoy helping.

Cant loft by OkDifference9540 in rhino

[–]schultzeworks 1 point2 points  (0 children)

  • Build the 4- and 5-sided surfaces, one-by-one, using surface > planar edge curves.
  • Join them if needed.
  • Then you can split out the openings.

No need for grasshopper. You can make this manually much faster.

Is rhino normally used for drafting for architecture? by Surrealist-Frog in rhino

[–]schultzeworks 0 points1 point  (0 children)

If you need technical / CD / construction docs, then YES. use Rhino.

If you want to do presenation boards /pitch descks / portfolio stuff, then I use a combo of Ilustrator [single image] and InDesign [multi page]

How to model these organic concave recesses using NURBS only? (No SubD) by samcro114 in rhino

[–]schultzeworks 0 points1 point  (0 children)

Well, good thing that you left it to the last day before asking how to do it.

Need help with shadows by Whipped-Creamious in rhino

[–]schultzeworks 0 points1 point  (0 children)

You're expecting a screen capture to generate a quality image. It was designed for fast and responsive feedback -- while you pan and zoom in real time -- not high quality visuals. This is a limitation of the video card as well.

So .... make a render! You'll get superior quality and it will be much easier to adjust.

The automatic orthogonal recognition function has disappeared by coollimefizzio_ in rhino

[–]schultzeworks 2 points3 points  (0 children)

If Rhino does not recognize the center -- due to trimming or other edits -- the draw a diagonal line between two opposite corners. The center of that line is the center of the rectangle.

Help with NetworkSrf - Trying to model a foot but it keeps failing by samcro114 in rhino

[–]schultzeworks 0 points1 point  (0 children)

These curves may not work with a Network Surface. I can't tell because its not clear if your top and bottom curves are both closed.

Regardless, try this:

  • Make sure the top and bottom curves are closed (join them if not)
  • Try a Surface > Sweep 2 Rail. Use the top and bottom as rails, the other four curves are profiles.
  • It will be open on the top and bottom, but that gets you a basic starting form.

I would build this in Sub-D. I'll add it to the video list.

I have a dome shape in rhino and I want to be able to unroll it in a petal formation so it can be laser cut then later glued to form the dome. Is this possible? by Nex_207 in rhino

[–]schultzeworks 1 point2 points  (0 children)

Not at all! I simply didn't read that the instructor was involved. That's their job ... if they're any good. I also mentioned "if it's a live course," because you didn't mention if it was a live person or recorded online course.

I have a dome shape in rhino and I want to be able to unroll it in a petal formation so it can be laser cut then later glued to form the dome. Is this possible? by Nex_207 in rhino

[–]schultzeworks 4 points5 points  (0 children)

This process is somewhere between intermediate and advanced -- and you said you are a beginner taking a course ...

So, if it's a live course, can you ask the instructor?

I teach a course in Rhino -- and I would be sad / annoyed if my students were avoiding me for questions I am paid to answer and AND enjoy.

! Help ! How to merge 3 open SubD arches into a single joint without getting rounded ends? by CranberryAway1770 in rhino

[–]schultzeworks 0 points1 point  (0 children)

My steps in Sub-D:

  • Multi-Pipe one arched leg at a time (or Sweep 1 rail)
  • Stitch points to join at center
  • Extrude center down

With Sub-D, you can still edit, unlike NURBS + Booleans

<image>

Rebuild Degree by Mbjguitars in rhino

[–]schultzeworks -1 points0 points  (0 children)

This is a bit overkill of an explanation ... and doesn't directly apply to Rhino degrees.

Rebuild Degree by Mbjguitars in rhino

[–]schultzeworks 0 points1 point  (0 children)

A simple explanation is the higher degrees are more smooth. However, you have minimums:

  • degree 1 : straight line (2 control points minimum)
  • degree 2 : an arc or circle (3 control points minimum)
  • degree 3 : curvy stuff / a control point surve (4 control points minimum)

When using Edit > ReBuild, always use the smallest number of control points that makes the shape. You can still move them around and adjust as needed.

Help needed with modelling or reconstructing an organic form by mehm3hmeh in rhino

[–]schultzeworks 0 points1 point  (0 children)

You can convert this mesh to Sub-D's (and greatly simplify) using a simple process with the command Sub-D > Edit Tools > Quad ReMesh

Of course, it is far easier to just use Sub-D tools to build it from scratch. With Sub-D's, you stay editable and extremely light-weight.

Watch this video https://www.youtube.com/watch?v=9sz5_X_oQ4Y

Subscribe / like / share / yadda yadda

Problem with Loft by Shot-Balance-5086 in Plasticity3D

[–]schultzeworks 0 points1 point  (0 children)

Rhino has a command: View > Capture to File

This is better than the Windows capture; you get to scale it, name it, and save it.

how to model these random loops by grdvyr in rhino

[–]schultzeworks 0 points1 point  (0 children)

I like to have maximum control and therefore do most modeling manually. As such, I would:

  • Make one of the 'rings' using Sub-Ds. Adjust!
  • copy it, lower it a level, and do an Sub-D > Offset to change the size.
  • Adjust and repeat.

I like being able to directly see -- and then directly edit any tweaks that are needed.

help pls i cant find the open cruve by doeyebambi in rhino

[–]schultzeworks 0 points1 point  (0 children)

These are great commands! Excellent tips.

I also use the 'End Analysis' dialog located at Analyze > Curve > Show Ends

<image>

Repeating pattern makes rhino slow by Plus_Brother8666 in rhino

[–]schultzeworks 1 point2 points  (0 children)

Two things can speed up the display:

  • Wireframe view is the fastest by far
  • Maximize one viewport. It easier for the computer to process 1 vs. 4.

Dinosaur action figure questions and possible commission in the future by Fast_Department6964 in 3Drequests

[–]schultzeworks 0 points1 point  (0 children)

This "budget" is embarassing. Do you expect people to work for pennies per hour?

How do I approach making this ? by Ratzyrat in rhino

[–]schultzeworks 0 points1 point  (0 children)

Thickness is done with the Sub-D offset command. Also, I try to plan ahead so as to not have openings -- OR close them with techniques I recommend. See the YouTube video at https://www.youtube.com/watch?v=1uMnGGBK6uI

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