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Topic ClosedExtruding with a thickness
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mypushpi View Drop Down
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Joined: 07.Sep.2018
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Points: 5 		Direct Link To This Post Topic: Extruding with a thickness
    Posted: 08.Nov.2018 at 05:47
Q - question

How to convert thick polylines to 3D solids?

A - answerPolylines with fixed width, closed polylines and circles can be converted (if the have non-zero thickness) to extruded 3D solids. Use the CONVTOSOLID command.
Pushpika
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mypushpi View Drop Down
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Points: 5 		Direct Link To This Post Posted: 08.Nov.2018 at 05:45
Extrude means creating solids using poly line.
If line thickness is normal or any other value, solid will create with inner core. (SOLID)
 
you can create shell by removing its middle core after that.
SHELL tool in 3d modelling.
I think it is equal for your requirement.
 
I'm sorry if I have miss understood.
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Teecross View Drop Down
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Points: 12 		Direct Link To This Post Posted: 07.Sep.2018 at 14:39
Sorry that I was not clear then! English is not my mothertongue ^^
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 06.Sep.2018 at 12:56
That's but one definition.
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>
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Teecross View Drop Down
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Points: 12 		Direct Link To This Post Posted: 06.Sep.2018 at 09:02
Well yeah that's what cavity is isn't it? A box without volumina on the inside with thickness on the sides 
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 05.Sep.2018 at 18:05
So what you really wanted was a hollowed out box.  
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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Teecross View Drop Down
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Points: 12 		Direct Link To This Post Posted: 05.Sep.2018 at 13:16
Yeah this is the effect but your rectangle is open on one side, i want it to be completely closed from each side. 

So you have a Recangle with an inner cavity.


EDIT: I tried setting a new Work Plane behind the actual workplane and then extruding a rectangle and it works !!!! Just have to pick "Offset from Plane" and set a new plane in the thickness you need from the actual plane <3

Thanks for your help lovely dude! :)



Edited by Teecross - 05.Sep.2018 at 13:31
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 05.Sep.2018 at 13:00
Is this the affect you are trying to achieve?  In my example the rectangle is 200x400 and has a thickness of 20.  The "cavity" is 10mm deep.
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 05.Sep.2018 at 12:31
I can't tell you how to do this using Inventor.  In AutoCAD there are a couple of ways to create a cavity in a solid object.  One way would be by subtraction.  The other way would be by using the PressPull command.  And depending on the object itself one could conceivably sweep or extrude a profile to obtain the desired result.

I tried to import the newest .ipt file but it failed for some unknown reason.  It might be an invalid file (corrupted?).


Edited by John Connor - 05.Sep.2018 at 12:52
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>
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Teecross View Drop Down
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Points: 12 		Direct Link To This Post Posted: 05.Sep.2018 at 07:04
Alright, I uploaded a new drawing, which is just a rectangular. My prior example wasn't great.. 

https://www.dropbox.com/s/w0nb4ic2wrh7bmd/CADForum.ipt?dl=0

So I want to extrude this rectangular with a certain thickness, i.e. 5mm from each side to the inward.
So the remaining volumen is a cavity.

I hope I expressed what I need to know ^^
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