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Material Optimization HELP! [message #93139] Tue, 01 July 2014 15:01 UTC Go to next message
avatar Mcciv  is currently offline Mcciv
Messages: 2
Registered: March 2014
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Junior Member
Hi all,

I am a student in industrial design, and i have a project about making a 3D model of a part of a city and i then i would like to print in with Strong and Flexible Plastic. Its size is actually 300mm x 200mm

So i wanted to ask you some questions about mechanical resistance and talking about what king of solution is better in order to remove materials as much as possible (for saving money :/)

(1) - i thought of a sandwich's structure with a core (grid represented in blue), but i dont know what dimension do i have to choose,
*** Is it enough resistant to make for example 1.5mm of a support // 3.5 mm for the core - and finish with 1mm support? should i try more/differently?
[ the below picture represents top view of the model, red things are buildings]
index.php?t=getfile&id=63709&private=0
index.php?t=getfile&id=63710&private=0

(2) - If i choose 1 mm width for the core, is it enough strong?, maybe 2mm is more stable? or else should i add a border to reinforce the whole model? mentioned in previous picture

Thanks for any help anyone may be able to provide.

Re: Material Optimization HELP! [message #93144 is a reply to message #93139 ] Tue, 01 July 2014 16:06 UTC Go to previous messageGo to next message
avatar AmLachDesigns  is currently offline AmLachDesigns
Messages: 1360
Registered: September 2011
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Shapie Expert
Just a suggestion, but if the base is just a flat plane, why not 3d print the buildings/plant/equipment and then mount them on a standard board (ply, hardboard, plastic board etc)?

Strong and flexible is strong, even at small thicknesses, but in addition to the cost issue you might get some warping
Re: Material Optimization HELP! [message #93189 is a reply to message #93144 ] Wed, 02 July 2014 11:05 UTC Go to previous messageGo to next message
avatar Mcciv  is currently offline Mcciv
Messages: 2
Registered: March 2014
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Junior Member
Thanks for repyling so fast,

Because, in fact, i would like to hollow buildings if it's possible, so i can't consider printing buildings and support separately, even if warping can be a serious problem.

but first of all, i had those previous issues that aren' revolved about support's thickness also about core form and dimensions.

Does anyone have another suggestion?

Re: Material Optimization HELP! [message #93192 is a reply to message #93189 ] Wed, 02 July 2014 11:51 UTC Go to previous messageGo to next message
avatar mkroeker  is currently offline mkroeker
Messages: 2012
Registered: June 2012
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Shapie Expert
I think it is still not clear what you are trying to achieve - is this meant to be a static display, or is that grid accessible on the top side to allow buildings to be inserted and removed as needed (somewhat like a travel chess board or the "ministeck" mosaic toy) ? If it is just to save material on what would otherwise be a flat panel, I think you could use a much coarser, possible even hexagonal grid. (In either case I suspect you could leave out the lower panel or reduce it to a frame without losing stability.)
Re: Material Optimization HELP! [message #93195 is a reply to message #93189 ] Wed, 02 July 2014 12:15 UTC Go to previous message
avatar AmLachDesigns  is currently offline AmLachDesigns
Messages: 1360
Registered: September 2011
Go to my shop
Shapie Expert
Mcciv wrote on Wed, 02 July 2014 11:05

Because, in fact, i would like to hollow buildings if it's possible, so i can't consider printing buildings and support separately, even if warping can be a serious problem.

You can print the buildings to be hollow and still apply them to a separate base.

See here for an example.

 
   
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