Slicing

AtomSoft
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Slicing

Post by AtomSoft » Sat Jan 31, 2015 9:06 pm

I need to cut a STL into layers and then arrange the layers side by side like they do for some LASER cutters. But i want to CNC the parts. How do i slice it and get layers? Ive googled for a while and only 3d stuff... also searched here with no luck.
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WillAdams
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Re: Slicing

Post by WillAdams » Sat Jan 31, 2015 9:19 pm

l did that using OpenSCAD as alluded to here: http://www.shapeoko.com/forum/viewtopic ... ols#p14076

Use the project() command to slice as needed.
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AtomSoft
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Re: Slicing

Post by AtomSoft » Sat Jan 31, 2015 9:27 pm

but i have it as a STL and Solidworks part. How am i supposed to import it to openSCAD?
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WillAdams
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Re: Slicing

Post by WillAdams » Sat Jan 31, 2015 11:03 pm

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ralston4
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Re: Slicing

Post by ralston4 » Sun Feb 01, 2015 12:21 am

Here's a slicer program: http://www.stlslicer.com/

I have this program and it works great. Here's a project I made mostly in blender and then sliced it up into 5 slices and carved them out as double sided carves before gluing back together.
MermaidSTLImpScrnSht2.png
MermaidSTLImpScrnSht2.png (254.92 KiB) Viewed 1281 times

DanMc
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Re: Slicing

Post by DanMc » Sun Feb 01, 2015 2:33 pm

Does Solidworks not do this natively?

I know Rhino has a slice tool that works really well. I've also done it in vectorworks but it takes a few more steps(which could be scripted). I would think it's possible with any decent 3D s/w.

edwardrford
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Re: Slicing

Post by edwardrford » Sun Feb 01, 2015 3:24 pm

Because of the difference between modeling with NURBS (like Rhino, Blender, Vectorworks) and modeling with polygons (Solidworks, Inventor, ProE, Catia,etc) 'slicing' is not a native action.

It can be done with polygons - by manipulating the model and saving off different copies of each "slice", but to produce the slice you would actually be cutting away part of the model. With NURBS, slicing is easy because you can break the model apart across a plane of points.

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paulkaplan
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Re: Slicing

Post by paulkaplan » Sun Feb 01, 2015 10:35 pm

It is very easy to slice an STL into 2D parts using the free program 123d Make from autodesk. You bring in the STL and tell it which axes to slice and the construction method (stacked slices, interlocking slices, etc.)

Here is a full tutorial on how to do it.
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WillAdams
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Re: Slicing

Post by WillAdams » Sun Feb 01, 2015 10:53 pm

Only "free" for non-commercial use: https://www.123dapp.com/gopremium
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paulkaplan
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Re: Slicing

Post by paulkaplan » Mon Feb 02, 2015 4:58 am

Thanks for pointing that out, wouldn't have noticed that. It is really the best thing around though. Good to keep those kinds of restrictions in mind. Is that a problem, op?
Paul Kaplan — Easel Developer at Inventables

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