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In this video, Stefan of CNC Kitchen makes an amazing discovery. By annealing 3D prints in plaster, you can significantly improve their strength and their heat tolerance.
He did have some issues with “demolding” the parts from the plaster and plans to do additional tests. It will be interesting to see where this leads. As someone adds in the comments: “Before putting in plaster, coat with a sealer and then a mold release. Avoids moisture absorption and reduces cleanup.”
I love this simple 3D printed mirror adapter that clips onto your laptop and feeds the image of a document placed beneath it into your camera. Perfect timing for remote back-to-school teaching.
When your students and teachers need to project their work during Zoom sessions from home. These will go out to all our middle schoolers and their teachers. #remotelearning #documentcamera #laptop #3ddesign #design #designthinking @tinkercad pic.twitter.com/ByJNkaYxar
— John Umekubo (@jumekubo) September 4, 2020
The Thingiverse file is here.
Maker JLaser is known for making Spider-Man wrist shooters and other comic hero tech come to life.
In this TikTok video, he shows off a design that’s actually useful. It’s a wrist-activated shooter that sprays hand sanitizer onto your hands, phone, door knobs, car handles, etc. The liquids are housed in disposable lighters.
This is kind of mesmerizing; oddly satisfying, watching Ivan Miranda build a giant 3D printer.
Here’s an interesting little experiment. Shane needed a blade guard for his cheap reciprocating saw.
He wanted to know if he could fabricate one himself by pressing some sheet metal into the somewhat involved profile of the part using 3D printed dies.
Overall, the results are fairly impressive. As Shane points out, if you needed to print out multiples of a complex sheet metal part, this might be a workable approach.
