Week 1: Make a Patterned Geometry in Rhino

by mengjiazhu in Workshop > 3D Printing

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Week 1: Make a Patterned Geometry in Rhino

Screen Shot 2020-04-02 at 8.24.07 PM.png
Screen Shot 2020-04-06 at 12.39.38 PM.png
Screen Shot 2020-04-06 at 1.01.16 PM.png

Interesting findings:

1. When Grasshopper is open, the 'units' tab from file->settings is not loading.

2. Create the origin point using Snap: When Grid Snap is on, the marker "snaps" between grid snap points, whose distance apart is set by the SnapSize command or in Document Properties > Grid.

3. To enter 'properties window' for the slider, right click->edit.

4. Question: Wondering how to change the background color of the python script editor? How to get the colored code font format?

5. Error: after typing in the python script: range() integer end argument. Need to specify rx type to be integer to solve this error

6. Question: I am not quite understanding the equation for ry: ry = int(0.5+(p2.Y-p1.Y)/dx). Why not use ry = int(dx)?

7. Error: mod is not defined in the script provided. Add 'mod = 3' before the for loop.

8. Error: “Indentation Error: unindent does not match any outer indentation level”. I have mixed tabs and spaces.

9. Finding: the curves and points generated are related to the distance between p1 & p2 a lot. One possible way to make the shape same for different sizes maybe to add a normalized factor to the scaling parameters.

10. Just realized you have to save Grasshopper and Rhino as different files!

11. Regarding symmetry of the generated shape: I was hoping to generate a symmetric object and found that the 3D object symmetry is depending on the symmetry of the distribution of the points.

12. Error on Boundary: planar surface routine returned no result. I have to flatten the curve at output of offcrv to solve this. But when I do that, the Sunion gives an error: no components.

--> I tried to flatten the curve at offcrv, then graft the output at extrude, the error went away!

13. Build time in Cura is 45 min with Ender 3 setting, I did not find Ender 3 pro.