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by blubee
Tue Oct 31, 2017 5:37 am
Forum: Install / Compile
Topic: FreeCAD github 8d3fe21 fail to compile.
Replies: 5
Views: 470

Re: FreeCAD github 8d3fe21 fail to compile.

there's nobody in here with any suggestions?
by blubee
Fri Oct 27, 2017 7:38 pm
Forum: Install / Compile
Topic: FreeCAD github 8d3fe21 fail to compile.
Replies: 5
Views: 470

Re: FreeCAD github 8d3fe21 fail to compile.

I think that i've narrowed down the problem, hopefully someone here can help me with this issue. On FreeBSD BOOST is compiled in C++11 mode. A lot of shared libraries are no longer exported because it's part of the C++ standard library now. I have to use a c++11-lib compatible compiler and export gn...
by blubee
Fri Oct 27, 2017 10:51 am
Forum: Install / Compile
Topic: FreeCAD github 8d3fe21 fail to compile.
Replies: 5
Views: 470

Re: FreeCAD github 8d3fe21 fail to compile.

The OS is FreeBSD 12 CURRENT
by blubee
Fri Oct 27, 2017 10:11 am
Forum: Install / Compile
Topic: FreeCAD github 8d3fe21 fail to compile.
Replies: 5
Views: 470

FreeCAD github 8d3fe21 fail to compile.

compilation failure trying to build FreeCAD from github git revision 8d3fe21 compilation error FAILED: lib/libSMESH.so : && /usr/bin/c++ -fPIC -Wall -Wextra -Wno-write-strings -O2 -pipe -fstack-protector -isystem /usr/local/include -fno-strict-aliasing -isystem /usr/local/include -std=c++11 -Wno-und...
by blubee
Mon Aug 28, 2017 2:47 am
Forum: Help on using FreeCAD
Topic: Drawing Workbenches images do not fit on the page
Replies: 3
Views: 468

Re: Drawing Workbenches images do not fit on the page

Hi, you only have to change SCALE TYPE from page to custom and you can fill in the scale you want Schermafdruk van 2017-08-26 10-39-10.png This seems like the best option so far. you only have to change SCALE TYPE from page to custom There is a third type, automatic I think it is called, for me it ...
by blubee
Sat Aug 26, 2017 7:42 am
Forum: Help on using FreeCAD
Topic: Drawing Workbenches images do not fit on the page
Replies: 3
Views: 468

Drawing Workbenches images do not fit on the page

I am testing out a few of the drawing workbenches to create .SVG images but they all seem misalign the images and so they do not fit on the page. Here's one that I tried to create with the Drawing Workbench Drawing.png This image is with the drawing dimensioning workbench Drawing_Dimensioning.png Th...
by blubee
Sat Aug 26, 2017 7:39 am
Forum: Help on using FreeCAD
Topic: When does elastic failure occur
Replies: 18
Views: 1363

Re: When does elastic failure occur

... because currently FreeCAD's FEM workbench ccx module doesn't support torsion stress. Hi blubee, ccx computes the stress components Sxx, Syy, Szz, Sxy, Sxz, Syz according to continuum-mechanics. There is no special "torsion-stress". The stress-matrix below is symmetric ==> 6 variables. Maybe you...
by blubee
Wed Aug 23, 2017 11:46 pm
Forum: Help on using FreeCAD
Topic: When does elastic failure occur
Replies: 18
Views: 1363

Re: When does elastic failure occur

Hi blubee, thanks for the files. Interesting projekt. Looks like a part of a crusher. In your new modell the shaft-diameter now is 80 mm. At a loading of 1250 Nm you will get only 12 MPa shear stress. Is that what you want? regards thomas 12MPa.PNG crusher.jpg the shaft has 3 sections; I just wante...
by blubee
Wed Aug 23, 2017 4:27 pm
Forum: Help on using FreeCAD
Topic: When does elastic failure occur
Replies: 18
Views: 1363

Re: When does elastic failure occur

here's the assembly files; this is what I am trying to create. I would like to make sure that even under max load of the motor the blades would get stuck and stop instead of continuing to rotate until they break and have something like this: https://www.youtube.com/watch?v=pDwqPaQjjLY :shock: That's...
by blubee
Wed Aug 23, 2017 4:23 pm
Forum: Help on using FreeCAD
Topic: When does elastic failure occur
Replies: 18
Views: 1363

Re: When does elastic failure occur

Hi blubee, I get the same result (99 MPa) for a 40 mm shaft. The formula for calculating the moment of inertia for a hexagon is taken from a german steel-engineering-manual. Some other manuals use a factor of 0,2 instead of 0,188, see here http://www.engineersedge.com/polar-moment-inertia.htm You p...

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