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I agree that I didn't put the question about the square doughnut very well, but it did generate some lively discussion, have minds whirring over, and introduced us to an expert in the field.

I'm...

Pay attention!!. This is the OpenScad Help Centre, not the Geometry Help Centre. The code pasted here is just an example copied from the blog page to illustrate the topic "Modules"


Hey! I'm not...

I was reading this, http://blog.cubehero.com/2013/12/18/organizing-your-openscad-code-part-i/ and came across this example of a module,

module ring(height, radius, radial_width) {
difference() {...

"I'm game, if you are," said the actress to the bishop.

OME

Bugger it!

I've just spent a good hour or so putting together something about modules and when I went to upload it I had been timed out. Stuff it. I'm going to bed

3841

And by the look of...

In an attempt to consolidate the important things that have been said, I went through this thread and pulled out the tid-bits of information that advanced the topic. I've indicated who made the post,...

Curious Aardvark - his father was a pheasant plucker, so he's a pheasant plucker's son. Oh it's so pleasant being a pheasant plucker's son, plucking pheasants in the sun. Plucking pheasants in the...

I think that we should stop for a moment and review what we have done so far, and to consider if we should establish an agreed plan of attack.

It is becoming clear that there are two groups...

Ugly colours: I just put some random colours on each component so I could see boundaries and intersections. That's why I've put the coding for colour adjacent to the object being created. When I was...

Here's the link: http://www.openscad.org/cheatsheet/index.html

Yes! Yes! Hasten slowly.

I did a bit of that tonight, and here's the little bit of code I ended up with. The object is a...

It is obvious from your work with the Marlin upgrades that you are either a professional programmer, or very competent in programming in various languages. For you, to switch between, say, C and Java...

I'm going to have to be careful how I write. That wasn't meant that I wanted to model an Millennium Falcon. I just used that thing as an image to represent a complicated object.



I'm in full...

CA,
I agree with you that color("colorname", [<0 n > 1 is as useless as a hip pocket in a singlet except under very rare circumstances. I just quoted it as an example of how the producers of the...

CA,
What I'm trying to do is illustrate the very basic things that have to be looked for when writing some code. That's why I paid more attention to brackets, braces, semi-colons and such. The cheat...

Fixed that now for you Mj. Sorry, but after working on that post and fighting with Word until late in the night, I missed proof reading. Things would have been better if I could have uploaded a 45Kb...

I have been studying the punctuation in OpenScad and think I've got it under control. I've written up my findings and present them here for your information and critique.

Understanding OpenScad...

What about the semi-colon ; ?

OME

Thanks for those comments, but I think I asked the wrong question to get the answer I needed.

The more correct questions would be:

1. What does each type of bracket enclose, and what is the...

Here is a random bit of code I found in a tutorial:

difference() {
union() {
// teardrop shape
sphere(r = 20);
translate([0, 0, 20 * sin(30)])
cylinder(h = 30, r1 = 20 *...

Most of the tutorials show two primitives : cube and sphere. Are there any other Primitives?

Old Man Emu

From Wikipedia ( http://en.wikipedia.org/wiki/OpenSCAD )

OpenSCAD is a free software application for creating solid 3D CAD objects. It is not an interactive modeler, but rather a 3D-compiler....