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From: ed (EDDYF)
Here is what I did:
Make a rectangle in side view.
Fillet the corners to round over.
Trim the curve in half lengthwise. Make the top half red and the bottom have blue for sake of illustration.
In top view rotate (pivot) the red curve 15 degrees. Rotate (pivot) the blue curve, in the opposite direction by the same number of degrees. Note: You must pivot each curve by the exact same number of degrees in opposite directions, otherwise they won't line up correctly for the following steps).
Join the red & blue curves.
In top view, select the Array Tool (Dir) and pick the Offset, Count option. Click once on the lower point of the curve, and click again on the highest point of the curve. This will duplicate and stack the curves in whatever quantity you chose. Select all the curves and Join. Note: You can compress or expand the spring by selecting it in top view, and resizing the boundary box.
Draw a small circle to represent the diameter of the wire. Sweep (Freeform) the spring using the small circle as the profile.
Finally, trim the ends of the spring as desired.
Ed Ferguson
From: bemfarmer
_CoilRectangular script:
http://moi3d.com/forum/index.php?webtag=MOI&msg=8657.1
- Brian
I believe that the pitch is constant, not variable for the curves...
From: mat10x
Hi Michael,
Ah...great idea with the control points to make the coil steps. Sweep, got it.
Thx!
From: mat10x
Hi Ed,
Thanks for the great visuals and clear explanation.
Resizing with the bounding box...so handy!
Thx!
From: mat10x
Hi Brian,
You guys amaze me with your scripts! Tried the script...woooow. So easy, I feel like I'm cheating.
Thank you!
From: mat10x
Hi guys,
Tried out your suggestions, worked perfectly!
Combined moving the control points to make the "step" portion with, array and sweep.
Thanks so much for your help!
Mat
Image Attachments:
Screen Shot 1.png
Screen Shot 2.png
From: Frenchy Pilou (PILOU)
And you can render with the free real time Simlab Composer Lite (Max 1920*1080)
http://www.simlab-soft.com/3d-products/simlab-composer-lite.aspx
Export from Moi in OBJ format
Have fun Sculpting Rendering!
From: mat10x
Hi Pilou,
Thanks for the suggestion. I'll have to try it.
Using Keyshot for renderings. Keyshot doesn't like Moi for some reason...so I have to save the MOI file in Rhino....then put it into Keyshot.
Thx.
M
From: Michael Gibson
Hi mat, I think Keyshot may only read Rhino display information from .3dm files, so using .3dm format may not work.
But what should work is to write out from MoI using .obj format with the "Output: Quads & Triangles" option in the meshing options dialog box. Then open that .obj file in Keyshot.
- Michael
From: mat10x
Hi Michael,
Thanks for the tip. Since I bounce between MOI and Rhino, I don't mind to save in 3dm.
I need to call Keyshot and request they update the software for MOI, ha.
Thx,
Mat
From: Finema
"Keyshot doesn't like Moi for some reason... "
HI,
I work with Moi and Keyshot and import directly 3dm files in it.
No need to save the file in Rhino.
From: Michael Gibson
Maybe this changed with some newer version of Keyshot, I can't remember the details.
- Michael
From: bemfarmer
Keyshot Pro, (Version 6 or 7), will directly import NURBS files, including MoI NURBS files.
It is my limited understanding that the less expensive Keyshot HD does not import NURBs..., but does import meshes.
(I purchased V6 some time ago, but never upgraded to v7)
- Brian
From: ed (EDDYF)
Correct - I have Keyshot Pro ver 7 and it imports 3DM files from MoI directly.
My spring below:
Ed Ferguson
From: mat10x
Hey guys,
I'm using Keyshot Pro 7.2.135.
Just tried a fresh MOI test file. No go. I get a window with a red stop sign "file.3dm did not appear to contain 3D geometry. Inside Rhino, please select View/Shade prior to saving it."
So I always have to re-save my MOI 3dm in Rhino...then open in KS.
Is there some setting somewhere in MOI or Keyshot? Sure would love to get MOI files to open in KS.
Thx,
Mat
From: Finema
In the Import panel > Geometry
Have you check Import Nurbs Data ?
From: mat10x
Success!
Thanks Finema!
From: Finema
great !
From: ed (EDDYF)
Yeah - I don't understand why Keyshot can't turn on their "Nurbs" flag automatically when importing a file with a 3DM extension.
Can a 3DM file be anything other than Nurbs?
Ed Ferguson
From: Finema
"I don't understand why Keyshot can't turn on their "Nurbs" flag automatically when importing a file with a 3DM extension."
because with Rhino 3dm files you can choose in keyshot to import the geometry in Nurbs or not.
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