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Old Oct 25, 2009, 08:19 PM
Stranger in a land
Haole's Avatar
Hawaii
Joined Dec 2007
571 Posts
Nice Rhino modeling guys. Keep up the helpful tips! I love developing sections from complicated surface forms, then extruding them into solids for further development.

I haven't played around with the public beta of Rhino 5 (64-bit) but it looks as though it'll be a really promising release. Hopefully I won't run out of memory anymore while doing huge booleans.

Carl
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Old Oct 26, 2009, 10:17 AM
Build it again, Sam!
Harpye's Avatar
Germany
Joined Oct 2004
4,091 Posts
Hello Carl!

Nice .. I'm quite not sure about the plane type, but looks interesting
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Old Oct 27, 2009, 05:33 AM
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East Anglia, UK
Joined Sep 2002
29,703 Posts
Sadly, its just us three Rhinoers as far as I can tell.
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Old Oct 27, 2009, 08:26 AM
Build it again, Sam!
Harpye's Avatar
Germany
Joined Oct 2004
4,091 Posts
I know some more... but tey are mainly in the micro builders channel ....

When I did my workshop the other year before .. I got an e-meil from Mc Neel
the husband from the owners secretary is RC modeller , too and reported his wife....
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Old Oct 27, 2009, 02:51 PM
Stranger in a land
Haole's Avatar
Hawaii
Joined Dec 2007
571 Posts
There's another person who contacted me via email about using Rhino but I can't remember what that member's name was. He's making Van Horten wings mostly if that helps, and does nice solid modeling. Some of the canard forum guys are using other suites and then it seems I also ran across another couple of Rhino users a while back, but my memory does not serve.

Funny story about McNeel.

C
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Old Oct 29, 2009, 12:57 AM
It actually Flies!
Float Flyer's Avatar
Salmon Arm, British Columbia, Canada
Joined Feb 2006
548 Posts
Whoo Hoo!!

Just found this thread.

I just got Rhino after looking at a number of systems. I think that it is the best in class for it's price. I have only been using it for a few weeks now, but I am very impressed. I am teaching myself, so lots of room for assistance and tips from the pros!

Float Flyer
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Old Oct 29, 2009, 02:40 AM
Stranger in a land
Haole's Avatar
Hawaii
Joined Dec 2007
571 Posts
Well that's great, and I'm up for taking some time to write a few tutorials on building complete airframes--laser-cut-ready, and also looking forward to learning more tricks from you all and whoever else happens to join in this discussion.

Let's keep it going and I'd like to volunteer to demo my process of building a complex wing, starting from root and transitional airfoil sections, into a complete solid structure. This should be fun and educational, and here's a tease of what can be done very easily with Rhino 4.

Carl
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Old Oct 29, 2009, 02:44 AM
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sandb0x's Avatar
Coventry, UK
Joined Jul 2007
42 Posts
Hi, guys. I am using Rhino for preparing file for laser cutting.
Here is my quick method for making wing in Rhino and some 3D models.

http://http://www.youtube.com/watch?v=x3GfU7gOI5M

Here is the link how to import airfoils into Rhino: http://en.wiki.mcneel.com/default.aspx/McNeel/RsAirfoil


Here is script for calculating balsa weight (its for 9 lb/ft3 balsa):
Quote:
_-NoEcho
_-RunScript
(
Option Explicit

Dim arrObjects, strObject, dblLength, intCount, dblNumber, dblBalsa, dblX

dblLength = 0.0 : intCount = 0 : dblNumber = 0.0 : dblBalsa = 0.00014 : dblX = 0

arrObjects = Rhino.GetObjects("Select Objects", 16, True, True)

If IsArray(arrObjects) Then

Rhino.UnselectObjects arrObjects

For Each strObject In arrObjects

'arrMP = Rhino.SurfaceVolume(strObject)
If Rhino.IsPolysurfaceClosed(strObject) Then

dblNumber = Rhino.SurfaceVolume(strObject)

dblLength = dblLength + CDbl(dblNumber(0))

intCount = intCount + 1

End If

Next

If intCount > 0 Then

dblX = dblLength * dblBalsa
Rhino.Print "Polysurfaces selected: " & CStr(intCount) & ", Total wight: " & CStr(dblX) & " grams"

End If

End If)
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Old Oct 29, 2009, 04:43 AM
Build it again, Sam!
Harpye's Avatar
Germany
Joined Oct 2004
4,091 Posts
I allways use the point cloud from NACA or MH Aero Tools Archieve...

Well there are different styles of building / construction comming up ...


Balsa and ply
The Balsa stringers and ribs are done from the small part to the assembly and back to the elements on the detail work


Foamy / Thermo restructuring
I usually come from the hole thing down to the element when creating tools and structure and go back to the surface / skins when comming to the built

Foamy HWC
I created a kind of virtual workspace, using Rhino Script ... So I can put my virtual part on the virtual machine work space press start and get the 4 axis NC code for that location in the real machine back...
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Old Oct 29, 2009, 05:35 AM
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East Anglia, UK
Joined Sep 2002
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I start with a solid or surface model of the structure, then offset it to get sheeting, then create the structure as interlocking sheets of real thickness wood, then trim it with the skin shape.

Then mesh outline each part to get the raw laser cut file data.

Sheeting is smashed flat.

Over to Corel draw for tabbing..its eraser is slightly easier than subcurve deletion. Or curve boolean
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Old Oct 29, 2009, 07:06 AM
Build it again, Sam!
Harpye's Avatar
Germany
Joined Oct 2004
4,091 Posts
I mostly use intersection of layers / planes to define the structural parts from a scaled and adjusted 3 view..... this also works rather fine from more "organic like" sources the closed spline " tension" defines the muscle volumina and the effort of definition causes a more or less soft or hard characteristics....
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Old Oct 29, 2009, 07:10 AM
Build it again, Sam!
Harpye's Avatar
Germany
Joined Oct 2004
4,091 Posts
Or another one ... made after a the Lord of The Ring figure.... guess what it should be....
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Old Oct 29, 2009, 07:11 AM
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East Anglia, UK
Joined Sep 2002
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closed spline tension? do you mean T-splines..dont have that..
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Old Oct 29, 2009, 07:15 AM
Build it again, Sam!
Harpye's Avatar
Germany
Joined Oct 2004
4,091 Posts
as you draw an open spline you are able to balance / weighten the definitions ( points ) try what happens as you create a closed line through points ( it is called "curve : interpolated points in the English version") the curve changes as you touch the first point with the last the connection will be "smooth"! so get the longitudinal rails / stringers / guidelines by the intersection layers and afterwards use those closed "rings" to specify the ribs/ spacers muscle segments or whatever to be detailed....

Here is anotherone ( after a warhammer figure which was much easier than the orc.... ouuupps) ... can't find it .... here is alternatively another more RC related trial ... ( I just was not able to get the CG Right...) ( George would kill me )
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Last edited by Harpye; Oct 29, 2009 at 07:21 AM.
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Old Oct 29, 2009, 07:17 AM
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East Anglia, UK
Joined Sep 2002
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Quote:
Originally Posted by Harpye View Post
Or another one ... made after a the Lord of The Ring figure.... guess what it should be....
Looks seriously Uruk-hai to me..

Wonderful work Harpye

I am afraid mine is more munfdane..


Er Indoors wanted a new bedroom..design and we watch a lot of TV in bed..

Still it saved me a load of time and money 'No, I don't want that seat under the window: I would have to cut the curtains' Sigh.

Quite pleased with the telly. Its only cartoon scale, but I did manage a curved screen and an actual screen grab of the TV card in my computer


On another note, this cockpit panel is nice too.
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Last edited by vintage1; Oct 29, 2009 at 07:28 AM.
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