Slicing 3D Objects into Multiple 2D Planes and Outputting
Slicing 3D Objects into Multiple 2D Planes and Outputting
(OP)
I would like to be able to slice 3D objects into layers 1/8" (or 1/16") thick and then output all of the 2D XY plane outlines to an individual file. This would allow me to build up 3D objects from 2D 1/8" thick pieces of steel. Can anyone tell me the best way to accomplish this using AutoCAD or another CAD program? Is there any utility that will do this ? Will it require AutoLisp programming ? Thanks alot for your help....





RE: Slicing 3D Objects into Multiple 2D Planes and Outputting
(I think it is the same in Acad14 too)
-Made several 3dObjects, Unions, intersections etc.
-New Layer: section - current layer
-Made a rectang including all those objects
-Turn the side view where rectang appears as line
-Made a rectangular array of the rectang (they slice the 3dObjects)
-Command: Section
pick all solid objects
Option Object
pick one rectang
-Repeat the same for all the rectangs.
-remove or hide the 3dObjects
There remain crosssection outlines corresponding to each of those rectangs which have served as cut planes.
I dont know if this helps at all, but if it does, the next step is how to automate this.
-Lisp can do it, certainly;
-VBA can do it easier, I assume
Selection sets are best to be by layers I think.
Well, lets have some more opinions on this
RE: Slicing 3D Objects into Multiple 2D Planes and Outputting
There ie a program call Rhino3d.
You can create de 3d object and then
choose from curves in the menu , to
do contours, it does the job en any
direction and in amy thickness you want
all in one step.
Any more questions let me know.
Good luck
Humberto
RE: Slicing 3D Objects into Multiple 2D Planes and Outputting
Download the PowerPoint tutorial for Steel Stubs.
It has some slide presentations that will help you.The commands you need to look at are SOLPROF and SOLVIEW also see how you can use the clipping planes in the tutorial.
http://steelstubs.bizland.com
Good Luck
Peter
RE: Slicing 3D Objects into Multiple 2D Planes and Outputting
This is in AK2K not sure about R14.
RE: Slicing 3D Objects into Multiple 2D Planes and Outputting
-grab all the objects in your 3D drawing
-loop through all the objects defining an equation for each
-solve for the intersection of each equation with the plane
-save the intersection to a 2D drawing
-increment the plane 1/8" and repeat
This sounds like a project I might have a use for also.
RE: Slicing 3D Objects into Multiple 2D Planes and Outputting
Just got the CNC table working yesterday, hoping to have the Plasma torch going this week.
RE: Slicing 3D Objects into Multiple 2D Planes and Outputting
Except, it is very difficult to get the intersections of 3D objects with 2D plane - near impossible.
SendCommand "_ection" does it easier from VBA or
(command "section") from Lisp,
once the cut plane is defined by pline (rectang).