This is a reminder that every diagram from my book Projective Geometric Algebra Illuminated is available on Wikimedia Commons under the CC-BY-4.0 license. They can be freely used in slides, papers, books, Wikipedia articles, etc., with proper attribution. commons.wikimedia.org/wiki/User:Er...

I started this shelf project about 6 months ago when I moved into my apartment. I developed a parametric dowel rod connector system to build it then I had the hardest time motivating myself to finish it. I had to problem solve since I built it with basic tools and my Mk4/Core One printing 6+kg PETG

88 gamers got assistive devices FOR FREE through thecontrollerproject.com either directly from me or through one of the amazing volunteers around the world. thanks to @prusa3d.com for his support with reliable 3d printers and to @cookiecad.com for beautiful filament to make these look amazing.

I saw we're doing 2016 throwbacks. On this day 10 years ago, I was making the first prints on a Mendel 90 we built for the "How to build a RepRap 3D printer" class I taught at the Dallas Makerspace. I would have never guessed I'd be making a living working on 3D printers founded by RepRap today.

Not only a perfect denouement, it was the end of an era. Thirty years ago today, this strip was published.

The multimaterial 3D printed gasket mechanism used in my braille and pop fidgets has made its was into another practical design!

My final paper from my postdoc with @trevorrife.bsky.social is out! If you've ever manually counted or sorted seeds, sampled tissue with a hole punch, filled tubes or plates with beads/seeds this is for you! dx.doi.org/10.1002/csc2... Get the designs free here: www.printables.com/model/135088...

#TodaysMomentOfAwesome Reflecting on the 1st half of 25-26 I keep coming back to "The correct analogy of the human mind is not a vessel to be filled but a fire to be kindled, the sparking of which produces an impulse toward original thought & an ardent desire for Truth." --Plutarch #EduSky #🔥not🪣

If the first 3 seconds of a video has a voice-over in generic 3rd person past tense ("The man placed a $20 bill in his shoe"), that video is an instant down vote and skip. One might think the YouTube algorithm would learn I treat AI slop the same way a cat handles tape clinging to its back paw.

Another mathematical model! 🎉 "Conic Sections Cone" shows a hyperbola, parabola, ellipse, and circle formed by planes cutting a cone. Both nappes of the cone together illustrates the two branches of a hyperbola. Now at Cults3D. More in comments. @cults3d.bsky.social

Have you ever had a spool of PLA filament that snap in your hand like uncooked spaghetti? Or perhaps the filament broke inside the PTFE tube? Why does this happen, and how can it be avoided? Explanations here: ekunn.com/blog/2025/11... © cover image: Zack Freedman #3dprinting #pla #filament

I hate getting stuff packaged in wasteful styrofoam packing blocks... but if you ever have a project that would be instantly solved with the stuff, it's nowhere to be found.

"Unit Circle Triangles & Tray" now at Cults3D. 🎉 I made worksheets too that fit the triangles perfectly. My colleagues are eager to use these in upcoming lessons and I've been printing class sets of triangles in Jessie PLA. STLs: cults3d.com/:3729612 @cults3d.bsky.social @printedsolid.bsky.social

Do I need another 3D printer? No. Do I have room for another 3D printer? No. Am I eagerly waiting and hoping for a preorder announcement from Prusa? You bet!

Think big, print big! Meet the Prusa CORE One L, ✨ our new large-format CoreXY printer, just 10% bigger than CORE One yet with 200% print volume, a new convection AC heatbed for uniform heat, and a 60 °C chamber for confident printing in advanced materials. 🦾 👉 blog.prusa3d.com/think-big-pr...

Prusa Open Sources a Solution for Smart Filament Tagging https://all3dp.com/4/prusa-open-sources-a-solution-for-smart-filament-tagging/

Kids these days don't know how easy they have it. 67? Bah! We had to wait for an adult to say a number slightly larger than 9,000 before we'd get to break out our meme. Do you realize how rare that was?

Solving #cat fostering challenges with #3dprinting! I'm currently fostering a young cat named Chabi whose desire to live under a bed cannot be blocked by mere boxes or pillows. Solution: Scrap parts from the 3D Printed shelving system (Printy Panels) I designed last year!

Oh hey - the original Dummy 13 model was posted two years ago today. … What would you want to see in a version 2.0?

Been printing thousands of these (at least 5kg of PETG so far). What are they? I'll get around to sharing that eventually :) These will be part of a giveaway next time I make it to a maker fair or RepRap festival.

I've been playing with a new string idea, I'm a bit obsessed! 😆

I have too many perfectly functioning Prusa MK3 & MK4 3D printers to justify buying a Core One... But if they ever released a version of the Core One with 2 printheads, well, I'd find a way to convince myself to upgrade/replace them all.

#TodaysMomentOfAwesome Working the CocoaPress booth at @3dprintopia.bsky.social my 1st 3D print event Walking around, talking to people, seeing the amazing ideas that come from Cartesian planes & melting plastic to become absolutely incredible designs. 11/10 would recommend #EduSky #MakerEdu

Cookiecad has an announcement for our community. Today we are pleased to announce the launch of Cookiecad Cares. We will launch in partnership with three organizations that promote inclusivity in 3D printing - at cares.cookiecad.com you can see our partners and apply.

I've posted a requested update to one of my #3dprinted mini monster models. The Mini Skeleton now has a 3rd pose: double pointed fingers. It's perfect for balancing multiple skulls at the same time! www.printables.com/model/100769...

Shelob's Lair #3DPrinting #LordOfTheRings #zbrush

We have a big update for our EasyPrint service - our unique solution for slicing on phones, tablets, and in your browser now works not only with Prusa printers but also with many third-party machines. 🦾 Vorons, Creality, Bambulab, Elegoo... you name it! Try it now! prusa.io/EasyPrint

Gimli bust #3dprinting #ZBrush #LOTR

Print Kits is on BlueSky Now!! We have a new project every month at printkits.com :-)

Use code GEEKTOYBOX for 20% off!

Introducing RAD (Rod Assisted Design), my latest parametric @openscad.bsky.social model that generates dowel rod, pipe, or tube connectors for use in construction of shelves, furniture, geometric decor, toys. Link to the github repository listed as well. Please give it some likes and feedback!

In case you didn’t know, I 3d print and donate parts to help disabled gamers be able to play. I run it all through www.thecontrollerproject.com if you want to learn more. This was this weeks shipments!

While the #3dprinter farm is taking a summer break, I have time to try out mods without risking project deadlines. The Prusa XL is now sporting @repkord.bsky.social's 6mm PTFE Tube Mod for Prusa XL in Prusament Carmine Red PETG! Posted make: www.printables.com/make/2815638

Published a couple of new 3d models on Printables so that I could dress my @3dprinty.xyz Giant Snowman up in a LA Dodger uniform for August. www.printables.com/model/138655... www.printables.com/model/138656...

It's a good thing I'm out of space for 3D printers. If I wasn't, I'd be tempted to break my personal rule against backing expensive Kickstarters. #3dprinting #toolchanger

Finished printing and assembling this Pop Fidget toy designed by @3dprinty.xyz! The inside has a soft TPU gasket that does the job of giving these buttons a nice pop. Really cool to get a chance to use multiple material types in a build! #3dprint #3d #fidget #fidgettoy

Hi, #3dprinting. As of a few weeks ago, I'm unemployed. I want to do this full time. Be the filament librarian for real instead of just on the weekends, like I have for the last six years. Can you help? forum.filamentcolors.xyz/d/31-a-call-... Reposts appreciated!

I finally figured out how to make a collapsing Buster sword with a replaceable blade! 😲The rivets screw in and trap the blade to the guard. This sword is so much fun, and available right now on @thangs3d.bsky.social! Download: than.gs/m/1368140

Hey check this out www.printables.com/model/133573...

I've been pondering the #3dprinting #etsy news for a while and those thoughts finally escaped containment in the comments section for @3dmusketeers.bsky.social's video on the subject. www.youtube.com/watch?v=cswv...

If you would like to donate before the June 28th stream, you can do so here! Let's help support @thetrevorproject.bsky.social! streamlabscharity.com/@anthony-dra...

Grant and I talk about engineering, inspiration, and what’s coming soon™️. Check it out!

Zelda has been dealing with some worse health issues the last few months. We're still working though it, but I was thrilled to find her hanging out at her favorite people watching spot for the first time in a while.

Check out these two great remixes to my #3dprinted Giant Molecualr Model Kit! TimeOut@Home created a 5-bond atom: www.printables.com/model/131197... Jose L. González created a double bond that uses only a single port: www.printables.com/model/131177... #science #education #3dprinting

Young me: Hyped whenever the main theme song kicks in during a ThunderCats or Teenage Mutant Ninja Turtles episode. Adult me: Hyped whenever Dover by The Westerlies kicks in during a Simone Giertz video. www.youtube.com/watch?v=j2SF...

17 years ago today. The first self-replication by a #RepRap #3Dprinter - the start of the #3Dprinting revolution.

I had to try Gargoyles in Spaaaace!

Awesome adaptive devices at #RMRRF.

<movie trailer voice> From the creators of Cocoa Press, we bring you Print Kits. We ship you the hardware, you 3D print the rest. Subscribe to our monthly project box at @rmrrf.bsky.social this weekend in Loveland Colorado and get a free air hockey kit 😀😀😀 printkits.com

Me, every time. #Andor #3DPrinting