Mastodawn

I've just invented a drafted linear extrusion for #OpenSCAD without using roof() or minkowski(), and also not limited to convex 2d geometries as in convex_offset_extrude() from #BOSL2.

I didn't stumble upon this solution anywhere else, so I might be onto something.

I present to you
module drafted_extrude(height,angle,$fn) {
intersection_for(a=[360/$fn:360/$fn:360]) linear_extrude(height=height,v=[cos(a),sin(a),tan(angle)]) children();
}

I need to work on $fn and convexity passthrough, and it may be as inefficient as minkowski(), but it has no limitations on inner radii and how thin walls on 2d geometry can be. Example usage for chamfers is in alt text

Alistair Buxton Feb 21

I realised Cory Doctorow was full of it when he said "you can't encrypt one bit". That was 20 years ago.

The people who are mad at him now are the ones who've been uncritically lapping up everything he writes, and the irony is he's very much responsible for the culture he is now complaining about.

Alistair Buxton Feb 6

Adults need to stop co-opting and ruining children's memes on a time frame of weeks. It is the memetic equivalent of antibiotic over-prescription, and brainrot memes are the equivalent of MRSA.

If we don't stop doing this, the only shibboleth they have left will be things you would not dare say in public or put on a t-shirt. Like the things that guy says. You know, that guy you don't like.

Alistair Buxton Feb 6

PSA: Running patch(1) on random patches that were emailed to you is unsafe.

Alistair Buxton Jan 13

@SnoopJ

Who is Armin?

Are they in the room with us now?

Alistair Buxton Jan 13

There is nobody in the world I trust to take a bribe and then deliver absolutely nothing in return more than open source developers.

The quants are worse anyway and they've been donating for years.

Alistair Buxton Jan 13

If you want a high quality desktop environment that works like Windows you used to have four or five choices. Under #Wayland you have one.

On the other hand, Wayland is great if you like keyboard-driven tiling compositors that are entirely configured by text editor. We have more of those than ever before for some reason.

I'm sure this is all totally unrelated to the extreme difficulty of making anything else work on Wayland.

Alistair Buxton Dec 29

Alberto Gonzalez

Dec 28

Could any UK Tindie sellers give me a hand? Which tariff code do you use to send your electronic kits overseas?

Alistair Buxton Dec 6

ZXGuesser Dec 6

It's still a work in progress, but seems stable enough for "public beta", so by popular demand here's a standalone version of the parametric clock generator I recently added to my online teletext viewer:
https://zxnet.co.uk/clock/#template=BBC1-1991

Alistair Buxton Nov 23

Asking GitHub Copilot how to remove GitHub Copilot from my GitHub account every day until GitHub removes it from my account.