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sectioning along a 3D spline curve
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Art Smith  
#1 Posted : Monday, October 10, 2016 4:15:36 PM(UTC)
Art Smith

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given a 3D solid model with a 3D spline curve for a center line. does Shark FX 9 provide a means to create "N" equally spaced planes normal to the 3D spline curve center line?? if so, what tool(s) are used? thanks

Art
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macnavi  
#2 Posted : Tuesday, October 11, 2016 4:34:56 AM(UTC)
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Do you mean the tool Path Duplicate, while holding 'option' to reference surface normals?
My model steam trams at Tramfabriek.nl

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Art Smith  
#3 Posted : Tuesday, October 11, 2016 12:38:49 PM(UTC)
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here's a chart that shows the challenge AND motivation for a better approach!!

Art
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macnavi  
#4 Posted : Tuesday, October 11, 2016 12:52:26 PM(UTC)
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Is this what you are trying to achieve?
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Art Smith  
#5 Posted : Tuesday, October 11, 2016 1:23:40 PM(UTC)
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macnavi-

thanks!! not exactly but FAR closer than my brute force approach!! the quadrants of the circles can be used to create infinite planes for sectioning. which tool did you use and where is it found??

Art
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macnavi  
#6 Posted : Tuesday, October 11, 2016 1:32:06 PM(UTC)
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This is the tool I described in my first post, the path duplicate.

1) Create a spline
2) Create a circle and have the edge touch the start of the spline
3) Create horizontal line
4) Select Path Duplicate tool
5) Insert quantity in the tool information menu (horizontal bar above main window)
6) Follow instructions in the information menu:

A) Select circle (if already selected, it will skip this step)
B) Select translation path, ie spline
C) Select copy origin, ie start point
D) Select two points for alignment axis. This is the angle the copied circles will have. That's where the horizontal line comes in. Click somewhere on the line, then click at the end of the line. You see the line in my example.

Now you should have your circles. If you don't deselect, you can still change the number of circles and it will adjust the amount on the spot.
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thanks 1 user thanked macnavi for this useful post.
jlm on 11/11/2016(UTC)
macnavi  
#7 Posted : Tuesday, October 11, 2016 1:33:29 PM(UTC)
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You can use the Skin Solid tool to create a tube around the circles. Then if you change the size of one circle, the tube will adjust accordingly.
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Art Smith  
#8 Posted : Tuesday, October 11, 2016 1:39:48 PM(UTC)
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macnavi-

thanks, now hopefully my afternoon can be much more productively used!!!

Art
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Tim Olson  
#9 Posted : Tuesday, October 11, 2016 2:29:57 PM(UTC)
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>> does Shark FX 9 provide a means to create "N" equally spaced planes normal to the 3D spline curve center line??

Hi Art

Try the Infinite Plane : Along Curve tool and specify the number of planes.

Tim

Tim Olson
IMSI Design/Encore
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Art Smith  
#10 Posted : Tuesday, October 11, 2016 4:05:03 PM(UTC)
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Tim-

thanks, sounds perfect! where do I find it?? tried the user guide searching for infinite plane to no avail....

Art
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Tim Olson  
#11 Posted : Tuesday, October 11, 2016 8:44:06 PM(UTC)
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Surface Tool Palette, image attached.
Tim

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24c on 10/17/2016(UTC)
Antoine  
#12 Posted : Wednesday, October 12, 2016 2:43:20 AM(UTC)
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Hello

video for my technical demonstration and methodology.

http://www.screencast.com/t/Io3aIQPfH07F

Antoine

dayer-design.ch
mrconcepts.ch
SharkFX 12
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Art Smith  
#13 Posted : Wednesday, October 12, 2016 6:04:47 AM(UTC)
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Tim-
thanks!! had never noticed the dialog boxes................

Antoine-
thanks!

sectioning is now working if perimeters with greater than 35 pieces for a hole with approximately a 1.25" ID is working..... HALF of the perimeters joined to date will NOT close! the PowerPack verify "Show Gaps" and "Show Overlaps" tools show nothing wrong??? do I have something set incorrectly or is there something else going on? being old school, I'm expecting closed perimeters that will yield "areas".....

Build 1204

Art
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Edited by user Thursday, October 13, 2016 2:31:52 PM(UTC)  | Reason: should have included build being used

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Art Smith  
#14 Posted : Friday, October 14, 2016 12:24:41 PM(UTC)
Art Smith

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am I the only one to be having problems with Shark FX 9's sectioning tool and irregular shaped solids??

Art
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Tim Olson  
#15 Posted : Friday, October 14, 2016 2:56:13 PM(UTC)
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Hi Art

Could you post the solid that you cut? It looks like an example section has 40+ splines. That would imply the solid has 40+ faces.


Tim
Tim Olson
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Art Smith  
#16 Posted : Friday, October 14, 2016 4:04:36 PM(UTC)
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solid that was "sectioned" attached >>>>solid is too large to send............

laser scanned image of a hand ported and finished intake port

Art
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Edited by user Friday, October 14, 2016 4:20:12 PM(UTC)  | Reason: Not specified

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Tim Olson  
#17 Posted : Saturday, October 15, 2016 12:43:42 AM(UTC)
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>>solid is too large to send

Art
Can I private email you my dropbox for upload?
Tim
Tim Olson
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Art Smith  
#18 Posted : Saturday, October 15, 2016 4:08:59 PM(UTC)
Art Smith

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Tim-

Absolutely!!

Art
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Tim Olson  
#19 Posted : Monday, October 17, 2016 11:47:17 AM(UTC)
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Hi Art

Many thanks or the file. It appears I was over testing the gap tolerance at six decimal places.

I lowered the gap test to five places and ACIS seems to accept that size just fine for covers, extrusions, profiles, etc. I am going to check more files and if all goes fine will be in the next upload.

Tim
Tim Olson
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Art Smith  
#20 Posted : Monday, October 17, 2016 12:50:51 PM(UTC)
Art Smith

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Tim-

thanks for the update! 32-bit single precision, 32-bit double precision, 64-bit single precision, or 64-bit double precision arithmetic?? let me know when when the regression testing has been completed to your satisfaction; both port projects are blocked until updated code is available. down loaded a copy of AeroPack this morning so that will keep me out of trouble for a day or two................

Art
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