MIT Sean Collier Memorial
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MIT Sean Collier Memorial
The monument was dedicated to MIT police officer Sean Collier,
who was shot on April 18. 2013.
From an engineering point of view this is a fascinating structure, because the architects
used graphic statics for the calculation. Isnt it astonishing that an old method gets a renaissance?
You can do 2D graphic statics with the sketcher-wb:
https://forum.freecadweb.org/viewtopic.php?t=46333
But for the monument, they used a 3D method!
I will try to redo this with FC (in my spare private time…)
More info:
https://www.epfl.ch/labs/sxl/index-html ... lications/
http://www.howeleryoon.com/work/46/collier-memorial
who was shot on April 18. 2013.
From an engineering point of view this is a fascinating structure, because the architects
used graphic statics for the calculation. Isnt it astonishing that an old method gets a renaissance?
You can do 2D graphic statics with the sketcher-wb:
https://forum.freecadweb.org/viewtopic.php?t=46333
But for the monument, they used a 3D method!
I will try to redo this with FC (in my spare private time…)
More info:
https://www.epfl.ch/labs/sxl/index-html ... lications/
http://www.howeleryoon.com/work/46/collier-memorial
Re: MIT Sean Collier Memorial
That's really fascinating. Looking forward to see you model!
follow my experiments on BIM modelling for architecture design
Re: MIT Sean Collier Memorial
I second that!
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Re: MIT Sean Collier Memorial
me too!
You shoul put all this graphical analysis stuff on the wiki! That is sooo cool.
You shoul put all this graphical analysis stuff on the wiki! That is sooo cool.
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Re: MIT Sean Collier Memorial
Thanks, but I think in this case there are a “few” hurdles to overcome.
For the graphic statics I need every stone.
Using slice-tool from part-wb? Slice, slice, slice…
Maybe it is better to use the wall as reference and make a new part of each stone.
Starting with 1, then stone 2 using 1 as reference and so on.
I am wondering about the file-size. 8 MB (?).
Because you can generate the complete structure with 3 sketches and an ellipsoid from part-wb.
Not a big thing…
Re: MIT Sean Collier Memorial
Probably I would use Part Slice too...
follow my experiments on BIM modelling for architecture design
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Re: MIT Sean Collier Memorial
Something is wrong with my model.
Export the structure (green) as step-file, reimport ==> ellipsoid remains. File size of step 29 MB (?)
Built a new one from scratch, using slice: tricky too, 5 bodys are generated, should be 6.
I need a new approach.
test-model: OS: Windows 10 (10.0)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.22284 (Git)
Build type: Release
Branch: master
Hash: bf1e8e48389f5e9e25bd77b67fe98da4213e797c
Python version: 3.6.8
Qt version: 5.12.1
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: German/Germany (de_DE)
Export the structure (green) as step-file, reimport ==> ellipsoid remains. File size of step 29 MB (?)
Built a new one from scratch, using slice: tricky too, 5 bodys are generated, should be 6.
I need a new approach.
test-model: OS: Windows 10 (10.0)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.22284 (Git)
Build type: Release
Branch: master
Hash: bf1e8e48389f5e9e25bd77b67fe98da4213e797c
Python version: 3.6.8
Qt version: 5.12.1
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: German/Germany (de_DE)
- DeepSOIC
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- Location: used to be Saint-Petersburg, Russia
Re: MIT Sean Collier Memorial
Fuse the slicing object together before slicing. It is explained mentioned in the example on Part Slice page. Slicing object must pass BOP check, your Extrude001 does not.thschrader wrote: ↑Wed Sep 02, 2020 6:53 am Built a new one from scratch, using slice: tricky too, 5 bodys are generated, should be 6.
Re: MIT Sean Collier Memorial
I added it to Part_Slice#NotesDeepSOIC wrote: ↑Wed Sep 02, 2020 11:55 am Fuse the slicing object together before slicing. It is explained mentioned in the example on Part Slice page. Slicing object must pass BOP check, your Extrude001 does not.
Alone you go faster. Together we go farther
Please mark thread [Solved]
Want to contribute back to FC? Checkout:
'good first issues' | Open TODOs and FIXMEs | How to Help FreeCAD | How to report Bugs
Please mark thread [Solved]
Want to contribute back to FC? Checkout:
'good first issues' | Open TODOs and FIXMEs | How to Help FreeCAD | How to report Bugs
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Re: MIT Sean Collier Memorial
That works. I used BooleanFragments on the slicing-plane, hope thats correct.DeepSOIC wrote: ↑Wed Sep 02, 2020 11:55 am Fuse the slicing object together before slicing. It is explained mentioned in the example on Part Slice page. Slicing object must pass BOP check, your Extrude001 does not.
Can you have a look at my original model from the first post?
Try to subtract (part-wb "cut") the ellipsoid from the (green) walls. The FC-file boost up to 8 MB.
When exporting the resulting structure as step, you get a file size of more than 20 MB.
I used splines in the basic sketch of the walls, maybe thats the reason.