Design irregular shapes in FreeCAD

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kefir
Posts: 30
Joined: Wed Jul 23, 2014 9:03 pm

Design irregular shapes in FreeCAD

Post by kefir »

What is the best way to design irregular shapes in FreeCAD? I'm a novice with FreeCAD and mostly use PartDesign, and often find myself being very creative about how to pad and pocket from various sides to create the shapes I need, and I'm not sure I'm doing stuff the easiest way always.

But sometimes I don't know quite how to do something at all in FreeCAD. To make an example, here's a simple fishing lure on thingiverse:

http://www.thingiverse.com/thing:25829

Here's a render of the parts:

Image

These parts don't seem to be very symmetric at all. How could something like this be designed in FreeCAD? (Even without the eye/gill features on the head part.)
vrytar
Posts: 28
Joined: Wed Nov 21, 2012 10:08 pm

Re: Design irregular shapes in FreeCAD

Post by vrytar »

Create cross sections and use Part - Loft.
mario52
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Joined: Wed May 16, 2012 2:13 pm

Re: Design irregular shapes in FreeCAD

Post by mario52 »

hi
an example of creation Designing a Surfboard Fin there in the post links to videos to build a loft
mario
Maybe you need a special feature, go into Macros_recipes and Code_snippets, Topological_data_scripting.
My macros on Gist.github here complete macros Wiki and forum.
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bejant
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Re: Design irregular shapes in FreeCAD

Post by bejant »

kefir wrote:To make an example, here's a simple fishing lure on thingiverse:
---Snip---
How could something like this be designed in FreeCAD?
Greetings kefir, it's possible to do - here's a screen grab of my first attempt:
20140726a_lure.png
20140726a_lure.png (14.99 KiB) Viewed 3955 times
If you want to have a look at the model the file can be downloaded from here, with a file-size of almost 7MB it's way too big to upload to the forum.

Or you can 3D print it and maybe try for some smallies.
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bejant
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Re: Design irregular shapes in FreeCAD

Post by bejant »

I was playing around and made a simpler version...
20140727a_Simple_Lure.png
20140727a_Simple_Lure.png (46.23 KiB) Viewed 3920 times
Attachments
20140727b_Simple_Lure.fcstd
(425.97 KiB) Downloaded 145 times
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