Dev logs of Rebar Addon for FreeCAD - GSoC project

[thschrader]

@amritpal
With flamingo-wb/workfeatures-macro you can generate rebars in a twisted shape.

twisted_rebar.FCStd

(408.01 KiB) Downloaded 97 times

OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.11919 (Git)
Build type: Release
Branch: master
Hash: fccb5dbc87b919164610296adc96aa8b4fe4825e
Python version: 2.7.8
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.1.0
Locale: German/Germany (de_DE)

twisted.JPG (70.02 KiB) Viewed 2972 times

[thschrader]

Here is a second approach using an hyperbolic-paraboloid.

hyperbolic.FCStd

(205.04 KiB) Downloaded 111 times

hyperbolic_paraboloid.JPG (82.85 KiB) Viewed 2955 times

roof.jpg (63.6 KiB) Viewed 2955 times

[regis]

Flamingo is proving to be quite great, what other kinds of shapes can you create? what about stairs as well?

[thschrader]

Flamingo is proving to be quite great, what other kinds of shapes can you create? what about stairs as well?

If you have a shape which is not accepted by rebar-tools, you can generate additional "axes"
(white/red/orange lines) with workfeatures-macro. In flamingo, you generate a pipe (the "rebar" ) ONCE.
After that, flamingo can fit the pipe to the other axes (in my case the orange ones). Flamingo
automatically detects the direction/lenght of every axis (or sketch/wire) and adjusts the rebar.
Was only a first idea...
regards thomas

generating_rebars.JPG (52.27 KiB) Viewed 2901 times

[amrit3701]

If you have a shape which is not accepted by rebar-tools, you can generate additional "axes"
(white/red/orange lines) with workfeatures-macro. In flamingo, you generate a pipe (the "rebar" ) ONCE.
After that, flamingo can fit the pipe to the other axes (in my case the orange ones). Flamingo
automatically detects the direction/lenght of every axis (or sketch/wire) and adjusts the rebar.
Was only a first idea...

Great.

FreeCAD rebar object can also do the same thing because inside the rebar object(let amount=10), each rebar is placing in the structure element through placement property. We just need to calculate placement of each rebar and then assign to rebar object.

Can you tell step by step that how I can achieve above through Flamingo WB?

Regards,

[thschrader]

Can you tell step by step that how I can achieve above through Flamingo WB?

I hope you do not expect a video . Give me 2 days, and I can post a detailed pdf.
Please have look at the flamingo-manuals from oddtopus. With flamingo, it is possible
to attach a profile (here: a pipe, simulating the rebar) to a sketch/wire/axis (or multiple
axis, as shown above) WITHOUT knowing the exact location/orientation/lenghts of the
sketch/wire/axis. My idea was: subdivide the edges (used workfeatures-macro) of
the surface of the roof, draw the orange axis (manually), then switch to flamingo and
fill the whole grid with rebars. My short statement.
Give me 2 days...
thomas

[thschrader]

Flamingo is proving to be quite great, what other kinds of shapes can you create? what about stairs as well?

@amritpal: here is the flamingo workflow (1,5 MB pdf)
https://www.dropbox.com/s/28hvg6mq8rpc1 ... s.pdf?dl=0
Edit: I forgot the file, sorry...

hyperbolic_start.FCStd

(75.22 KiB) Downloaded 105 times

@regis, according do "stairway": here is a tough one...
https://forum.freecadweb.org/viewtopic. ... 9&start=10

[regis]

Flamingo is proving to be quite great, what other kinds of shapes can you create? what about stairs as well?

@amritpal: here is the flamingo workflow (1,5 MB pdf)
https://www.dropbox.com/s/28hvg6mq8rpc1 ... s.pdf?dl=0
Edit: I forgot the file, sorry...
hyperbolic_start.FCStd

@regis, according do "stairway": here is a tough one...
https://forum.freecadweb.org/viewtopic. ... 9&start=10

Great stuffs, i'll like to play with it when i've got more time.
freecad needs a way to integrate all these tools in more refined workbenches, some of the tools do the same thing with one less or more option in another workbench.

[amrit3701]

@amritpal: here is the flamingo workflow (1,5 MB pdf)
https://www.dropbox.com/s/28hvg6mq8rpc1 ... s.pdf?dl=0
Edit: I forgot the file, sorry...
hyperbolic_start.FCStd

Thanks, @thschrader for sharing this. This week I am busy in my academics. I will give updates soon.

Regards,

[bernd]

@thomas
Am I right, all rebars are straight!