Extrude from curved surface of cylinder

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tiwariaditya13
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Joined: Mon Aug 18, 2014 3:42 am

Extrude from curved surface of cylinder

Post by tiwariaditya13 »

I want to extrude some basic shapes from the outer curved surface of a cylinder.
How can I do that.

I will also like to write some extruded text on the outer curved surface of the cylinder.

Any help is welcomed.

OS: Linux Mint 16 Petra
Word size: 64-bit
Version: 0.14.3702 (Git)
Branch: releases/FreeCAD-0-14
Hash: b3368125c63289ec8ce9faec2b2ae4c78d436406
Python version: 2.7.5+
Qt version: 4.8.4
Coin version: 4.0.0a
SoQt version: 1.5.0
OCC version: 6.7.0
Johanneshov
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Joined: Tue May 06, 2014 6:29 am

Re: Extrude from curved surface of cylinder

Post by Johanneshov »

Is the attached file/design too basic for you?

I am a newbie... ;-)
Hello.jpg
Hello.jpg (26.2 KiB) Viewed 10689 times


/Johanneshov
hello.FCStd
(46.49 KiB) Downloaded 321 times
tiwariaditya13
Posts: 3
Joined: Mon Aug 18, 2014 3:42 am

Re: Extrude from curved surface of cylinder

Post by tiwariaditya13 »

Thanks, BUT I was looking for something different.

The extruded surface shall also have a cuved face like cylinder.
Can any one please help
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bejant
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Re: Extrude from curved surface of cylinder

Post by bejant »

Greetings Johannesov, you've added some unnecessary things in to your model.
Delete Pad002
Delete Fusion (select Yes in the Object Dependencies pop-up window)
Delete Pad001
Delete Sketch001

Now you only have Sketch and Pad (which make up the cylinder) and Shapestring (the text) remaining.

Change to the Part (not Part Design) Workbench
Select Shapestring
Select the Extrude tool:
Image
In the Direction area of the Extrude window change Y to 1, and change Z to 0.
Use 10 for length (units are mm)
Click the Apply button to see the result
Click the OK button to exit the Extrude command.

Now join the extruded text to the cylinder:
While still in the Part WB,
Select the Boolean tool:
Image
On one pane select Extrude, in the other pane select Pad, make sure the Union radio button is selected, click Apply, then click Close.

If you like you can make another concave Pad on the outside of the cylinder and subtract Pad001 from Fusion with the Boolean tool again. (Fusion in the left pane, Pad001 in the right pane)

The file is too big to upload to the forum; you can download it here.
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bejant
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Re: Extrude from curved surface of cylinder

Post by bejant »

tiwariaditya13 wrote:The extruded surface shall also have a cuved face like cylinder.
See my previous reply, the model looks like this:
20140818c.png
20140818c.png (11.72 KiB) Viewed 10677 times
Just curious, are you and Johannesov the same person?
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shoogen
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Re: Extrude from curved surface of cylinder

Post by shoogen »

tiwariaditya13 wrote:The extruded surface shall also have a cuved face like cylinder.
Still the direction is constant. Currently it is not possible to extract along the normal of cylinder face. This would mean to apply a non-linear transformation to every Pole of the BSplines. (All geometry needs to be converted, therefore)
Would be a nice feature request ;)
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bejant
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Re: Extrude from curved surface of cylinder

Post by bejant »

The following forum topics may be helpful too:
viewtopic.php?f=3&t=5700
viewtopic.php?f=24&t=6366
viewtopic.php?f=3&t=6892
jmaustpc
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Location: Australia

Re: Extrude from curved surface of cylinder

Post by jmaustpc »

shoogen wrote:
tiwariaditya13 wrote:The extruded surface shall also have a cuved face like cylinder.
Still the direction is constant. Currently it is not possible to extract along the normal of cylinder face. This would mean to apply a non-linear transformation to every Pole of the BSplines. (All geometry needs to be converted, therefore)
Would be a nice feature request ;)
@ tiwariaditya13
As you will see from the links in the last post from Bejant, a current work around to approximate what shoogen is saying, is to model and place each letter independently.
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NormandC
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Re: Extrude from curved surface of cylinder

Post by NormandC »

shoogen wrote:This would mean to apply a non-linear transformation to every Pole of the BSplines. (All geometry needs to be converted, therefore)
Would be a nice feature request ;)
Well? Who's doing it? :P (I'm too lazy tonight!)

In layman's terms, this is called wrapping 2D geometry on a surface.
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bejant
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Re: Extrude from curved surface of cylinder

Post by bejant »

normandc wrote:Well? Who's doing it?
I don't mind, I'll do it tomorrow (Tuesday).
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