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View Full Version : Alternative to booleans for making holes?


CTho9305
06-23-2003, 01:16 AM
I'm modelling a breadboard (protoboard)... basically a box with a bunch of holes that go almost the way through it that you can plug computer chips, wires, and other electrical components into.

I looked around here a bit and see that booleans are generally frowned upon, and for this many holes, booleans are REALLY not a viable solution. How can I create about 100 holes in the box?

heavyness
06-23-2003, 01:30 AM
make 1 hole in 1 part of the section, then copy the one over and over again. if you align them, you shouldn't see any seems. and if you do see seems, just weld the verts.

i'm not to sure what a breadboard is, but from what you have said, i think that might help. please post back if i'm off base.



*also, is your qoute from futurama?

CTho9305
06-23-2003, 01:43 AM
Originally posted by kole
make 1 hole in 1 part of the section, then copy the one over and over again. if you align them, you shouldn't see any seems. and if you do see seems, just weld the verts.

How would I copy a hole? I assume that to create you are saying to make some cuts and then drag the verticies into the board to create the holes? Can that be copied?

breadboard (http://www.contrib.andrew.cmu.edu/~cst/breadboard1.png)
closeup (http://www.contrib.andrew.cmu.edu/~cst/breadboard2.png)
wireframe closeup (http://www.contrib.andrew.cmu.edu/~cst/breadboard3.png) (to show holes, with beveled edges)

Those images look pretty much how they should, except I have 90 STL errors even with a high initial polygon count... some faces are missing because of boolean quirks. I'd rather not fix all the errors by hand if possible.


*also, is your qoute from futurama?
I don't know the original source... I have looked quite a bit and I can find some close matches, but nothing exact.
"We're surrounded. That simplifies the problem."
- Chesty Puller, USMC
That is on a few sites.

"Sir, we're surrounded."
"Excellent. We can attack in any direction!"

Sir Augustus Bromte

That matches, but only ONE site has that, and I couldn't contact the site's admin to find out how they found the quote.

edit: those pics above are rendered with a fairly bright ambient light.
this (http://www.contrib.andrew.cmu.edu/~cst/breadboard4.png) shows it in more normal lighting, and you can see a few of the missing faces.

holosynthetic
06-23-2003, 02:11 AM
NURBS?

ToddD
06-23-2003, 02:17 AM
Why not start with a "plane" object (say 16 by 16 you'll need to do the math for your circumstance), convert to e-poly. Inset, or bevel the desired holes, negative extrude. Now take this section, and array(to create all of the holes) it so that the edges are close enough to weld the verts, but the other edges are not within the threshold. Hope that makes sense!:thumbsup:

CTho9305
06-23-2003, 03:04 AM
Originally posted by Tbonz816
Why not start with a "plane" object (say 16 by 16 you'll need to do the math for your circumstance), convert to e-poly. Inset, or bevel the desired holes, negative extrude. Now take this section, and array(to create all of the holes) it so that the edges are close enough to weld the verts, but the other edges are not within the threshold. Hope that makes sense!:thumbsup:

That works great. Thanks! :thumbsup:

ToddD
06-23-2003, 04:14 PM
Glad I could help!:applause: :thumbsup:

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