Barbell Threads?

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Old 01 January 2005   #1
Barbell Threads?

Heyas --

I am confooosed. I am trying to model a barbell and I am at the point of cutting the threads into the bar itself. Cannot seem to get something going. I have tried sweeping a helix spline and booleaning it but to no avail. Attached is what I am trying to achieve. Anyone have a moment to help this lad?

TIA
/gary
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File Type: jpg thread.jpg (32.0 KB, 118 views)
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Old 01 January 2005   #2
You can extrude every other line of polys in a plane, put it in a wrap deformer, then use the "movement" function to offset the threads. Hope that helps.
 
Old 01 January 2005   #3
something like this?



probably not the easiest way, but here's the scene-file with the different stages

scene

cheers
Cosmic
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Old 01 January 2005   #4
As seen above there are several good ways. Let me show another!
Scene progress here item 006.








Cheers
Lennart
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Old 01 January 2005   #5
cont.

And to round it of.









Cheers
Lennart
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Old 01 January 2005   #6
Screw That!

Hahahah!

Thanks for the tutorial!!
 
Old 01 January 2005   #7
Cool, nice one lennart
Will you put it on your website? If not we should move this to the tutorials and tips section.
Cheers
Srek
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Last edited by Srek : 01 January 2005 at 09:58 PM.
 
Old 01 January 2005   #8
Originally Posted by Srek: Cool, nice one lennart
Will you put it on your website? If not we should move this to the tutorials and tips section.
Cheers
Srek


Thanks. If you don't mind putting it there, please do. I'll make a page at my place later.
(I just hate webmaking - hence my site "design" )

Cheers
Lennart
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Old 01 January 2005   #9
oh damn! Thanks everyone for the very informative responses.

Lennart -- Thanks for the tutorial. I hadn't even thought of a plane and wrap deformer.

*sigh*


Thank you all so much
/gary
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Last edited by fretshredder : 01 January 2005 at 10:37 PM.
 
Old 01 January 2005   #10
Very clever the offset trick. Nice one!
 
Old 01 January 2005   #11
How do how do i select the edge. when i use edge optional loop selection it selects more than one edge.
 
Old 01 January 2005   #12
You will have to check "Stop at boundary Edges" but...
This won't work in your case since your cylinder overlap..
You'll have to go back a few steps and make shure the WrapDeformer is making a clean 360 degrees wrapping and adjust the plane to fit.
Cheers
Lennart
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Old 01 January 2005   #13
Sir,
When i extrude i get this opening at the edge of the wrap. i'm wrapping it from -90 to -450 which makes a complete 360 degree.
I'm using Cinema 4D 9

Thankyou for ur help Sir.,
.
 
Old 01 January 2005   #14
Hi. I think you need to choose "Optimize" the mesh so the ends get welded/connected before doing the extrude. The ends are still the two sides of the plane, and because of that not connected.

Cheers
Lennart
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Old 04 April 2005   #15
That is a very neat trick! I suppose that after extruding the ring of polys, one could make the edges of the threads sharp using the "Normal Scale" Tool
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