Extrude a dome from oblong square face?

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mancroft
Posts: 4
Joined: Sun Oct 11, 2020 7:44 am

Extrude a dome from oblong square face?

Postby mancroft » Sun Oct 11, 2020 7:51 am

Hello all,

the question is easy.

How do I extrude a dome with desired radius (and NOT semi-sphere) from borders of an oblong square face/body?

I could not find a usefull answer so far. Either an answer was semi-sphered, or useless due a poorly documented (or not documented at all) workbench.

SolidWoks has "dome" command for that purpose, what would FreeCAD's counterpart be?

Thanks in advance,
Marjan
openBrain
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Joined: Fri Nov 09, 2018 5:38 pm

Re: Extrude a dome from oblong square face?

Postby openBrain » Sun Oct 11, 2020 8:57 am

Answer is easy : please read the link in the red banner and comply to requested details.
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GlouGlou
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Joined: Sun Apr 05, 2015 9:02 am
Location: La Rochelle, France

Re: Extrude a dome from oblong square face?

Postby GlouGlou » Sun Oct 11, 2020 8:58 am

mancroft
Posts: 4
Joined: Sun Oct 11, 2020 7:44 am

Re: Extrude a dome from oblong square face?

Postby mancroft » Sun Oct 11, 2020 9:51 am

openBrain wrote:
Sun Oct 11, 2020 8:57 am
Answer is easy : please read the link in the red banner and comply to requested details.
Rewrite my question so that it will not hurt you.
Bance
Posts: 1202
Joined: Wed Feb 11, 2015 3:00 pm
Location: London

Re: Extrude a dome from oblong square face?

Postby Bance » Sun Oct 11, 2020 9:54 am

Why don't you help us to help you and follow the posting guidelines?
mancroft
Posts: 4
Joined: Sun Oct 11, 2020 7:44 am

Re: Extrude a dome from oblong square face?

Postby mancroft » Sun Oct 11, 2020 9:58 am

Soryy, I was not able to make "geodesic macro" into life.

I created new macro, copy-pasted code, saved it, and run it in empty freecad document. Nothing happened.

Kind regards,
Marjan
openBrain
Posts: 5155
Joined: Fri Nov 09, 2018 5:38 pm

Re: Extrude a dome from oblong square face?

Postby openBrain » Sun Oct 11, 2020 10:06 am

mancroft wrote:
Sun Oct 11, 2020 9:51 am
Rewrite my question so that it will not hurt you.
Do you really think that these simple rules has been set to piss forumers off? Knowing your version allows us to know which features are available for you (FC improves very fast). Having your file in its current state allows us to perfectly understand what you're trying to achieve (or maybe you think that an "oblong square" is something easy to figure out). Also we know which workbench/workflow you're using (FC is multiple and versatile). Having a hand made sketch or a picture of the final shape is appreciated.
Help on this forum is brought by a community of enthusiast volunteers. Showing some respect for their precious time should not be an option. ;)
mancroft
Posts: 4
Joined: Sun Oct 11, 2020 7:44 am

Re: Extrude a dome from oblong square face?

Postby mancroft » Sun Oct 11, 2020 10:11 am

Bance wrote:
Sun Oct 11, 2020 9:54 am
Why don't you help us to help you and follow the posting guidelines?
Oh, this is worthless. Please delete my account.
chrisb
Posts: 30663
Joined: Tue Mar 17, 2015 9:14 am

Re: Extrude a dome from oblong square face?

Postby chrisb » Sun Oct 11, 2020 11:19 am

mancroft wrote:
Sun Oct 11, 2020 9:58 am
I created new macro, copy-pasted code, saved it, and run it in empty freecad document. Nothing happened.
There are two GeodesicDome macros in the addon manager. I tried the first (with a blank in its name) and as described by mancroft nothing happened.
Then I deinstalled and installed the one without blank and the macro starts. I didn't test it any further.

OS: macOS 10.15
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.22611 (Git)
Build type: Release
Branch: master
Hash: 7eeec7a5990cc786723225ca8de16ca3186545b3
Python version: 3.8.5
Qt version: 5.12.9
Coin version: 4.0.0
OCC version: 7.4.0
Locale: C/Default (C)


This discussion seems to have gone somehow out of whack; it was for a newbie an unlucky response to ask openBrain to change the post himself (which he cannot anyway).
Marjan, try to see it with our eyes. The forum regulars are here because they like FreeCAD and they like to help. They think that both are very important and good things. We are not payed and thus dare to request from users asking questions to prepare them as good as possible. It may take you more time in the first go, but the helpers will have to invest less, and that should it be worth. As return of such investment you get usually very fast and competent answers.
You need at least FreeCAD 0.19.23300 to edit my current sketches.
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.
mrdic
Posts: 86
Joined: Wed May 10, 2017 4:25 am

Re: Extrude a dome from oblong square face?

Postby mrdic » Sun Oct 11, 2020 12:57 pm

The question seems to be how to create a parametric bulge from a rectangular face, which says nothing of the blend function at the corners of the profile, but I think a Gordon Gregory surface could create something with near-semicircular arc sections orthogonally across the crown.
Last edited by mrdic on Mon Oct 12, 2020 12:01 am, edited 1 time in total.