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Forum discussions on General CAD Discussion.
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TOPIC: Re:z axis with 3d?
#476
mik82 (User)
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graphgraph
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z axis with 3d? 4 Months, 3 Weeks ago  
If i make a 3d design for a cnc wood router.The depth of the drawing should be below 0 on z axis?
In other words the top surface of the design should be on 0 coordinate on z axis and everything else below that??
 
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#478
enrique (User)
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graphgraph
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Re:z axis with 3d? 4 Months, 3 Weeks ago  
as i understand drawings don't have depth... but if your model is 3d "0" is the centre of the model and so should be machined from both sides and/or in the rotary (4th axis).
otherwise it would be a 2.5d model and machined in 3 axis xyz from the "top, but zero can be the top or bottom of your material.
 
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#484
mik82 (User)
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graphgraph
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Re:z axis with 3d? 4 Months, 3 Weeks ago  
So in a cad program can you draw a 3d design and specify that 0 is the bottom of your material?
So the depth is positive coordinate on z axis?
 
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