Imprimir objectos ocos? E moldes para metal feitos na vossa Impressora, um tico-tico, corte para serra manual, e um Spinner non stop

Se quizerem imprimir Objectos 3D, com uma data de buracada, o que os torna mais leves e rápidos nde imprimir, sigam este Tutorial: 

How to 3D Print Hollow Objects – Simply Explained

Pranav Gharge 

Have you ever wondered whether hollowing out a model is a good idea or not? Well, the simple answer is that since 3D printing is a volume-based production technique, there’s almost always a benefit to some degree of hollowing out of a print. Hollowing can save you printing material, time, and money, and of course, potentially improve your prints.

In this piece, we’ll discuss hallowing prints in general for FDM, SLA, DLP, and LCD (resin) printing. Then, we’ll focus on the three main ways to hollow out your prints: with a slicer, vase mode, or a modeling program (we choose Meshmixer as our example). And finally, we’ll go over some considerations for when and how much to hollow. 

https://all3dp.com/2/how-to-3d-print-hollow-objects-simply-explained/

Moldem chapa de metal, usando ferramentas impressas em 3Dmais rápidas e fáceis de produzir do que por Maquinação CNC:

Bending steel with plastic 3D printed toolsStuff Made Here 

I've been wondering if 3D printed tools could possibly bend steel. It seemed possible unlikely. I designed and printed several tools which are used on a hydraulic press to bend and form steel sheet metal. This particular tool could be made by CNC machining the tools from metal but 3D printing it is much faster and easier 

https://www.youtube.com/watch?v=WuY2-OrT9ig

Eis 2 vídeos de Daniele Tartaglia de seguida, o primeiro, uma serra tico-tico bem bacana:

How to make SCROLL SAW machine DIY
Daniele Tartaglia

https://www.youtube.com/watch?v=79MQiMw1XMo

O segundo Vídeo de Daniele Tartaglia ensina-vos a fazer uma estação de corte para o vosso tico-tico, sem os erros de corte do costume...

How to make JIGSAW Cutting Station - PERFECT corner cutting
Daniele Tartaglia


https://www.youtube.com/watch?v=HfW0J4r7y-o&feature=em-uploademail

Estou farto de dizer que para uma Proof-of-concept não precisam de passar logo a um Produto Acabado, e aqui está mais uma prova.

Este nosso amigo fala de Energia Grátis; 

Certo, o Spinner rodará até que avarie, ou os Ìmanes percam força, cerca de 400 anos, para isso...

Mas saír alguma energia que se aproveite, só com uma data destes aparelhos em série, mas dá para um Brinquedo de Secretária impecável:

Free Energy Magnetic Fidget Spinner 100% Real working new idea technology

Multi Electric  

Free Energy Magnetic Fidget Spinner 100% Real working new idea technology

Visit my facebook page   fb.me/freeMultiElectric 

https://www.pinterest.pt/pin/620933867362615989/

Desinfectante UV! E mais do Thang, uma Impressora 3D por deposição de pó, e experiências com Super-Cola

Desinfectar as vossas gigajogas não-porosas, com este Aparelho de Ultra-Violetas, em minutos?

É bom.

Construam-no em casa:

DIY Ultraviolet Sterilization Device (UVClean)henrydmayne 

Introduction
Hi all and welcome to my very first instructable! In this step by step guide, you will learn how to create your very own ultraviolet sterilization device that can be used as either a wand, or as an automatic sterilization chamber. The device, called the UVClean, uses a special UVC bulb that can sterilize nonporous surfaces in a matter of minutes. 

https://www.instructables.com/id/DIY-Ultraviolet-Sterilization-Device-UVClean/

O Thang continua a dar-nos deias, esta para evitar catástrofes, nas vossas Engenhocas, pára o cursor, no princípio e no fim do percurso:

Safety clutch for screw drives

thang010146 

 Input: violet screw.

If the pink key is in the rectangular hole of the grey nut, it prevents the grey nut from rotation, thus the nut translates when the violet screw rotates.

When the nut block (in yellow) reaches its end position, the blue bar of V-shaped slot is pushed from its neutral position. The V-shaped slot and the red pin make the pink key leave the rectangular hole of the grey nut, thus the nut rotates together with the screw and stops pushing the nut block.

Once the screw reverses, the pink key gets into the rectangular hole of the grey nut under the action of the green spring, prevents the grey nut from rotation, thus the nut translates back 

https://www.youtube.com/watch?v=R9vVNTHpjII

Não há só FDM, também há 3D por deposição de pó, e aqui vai como fazerem a vossa própria Impressora 3D usando esta tecnologia, que não precisa de suportes:

Plan B overview, Open source 3DP printer

ytec3d

Plan B is an open source 3DP printer. It prints in powder with a special binder. 3DP printing requires no support material and prints at higher resolution than FDM printing. Printing in powder has the potential to be cheaper than most techniques, though more research into materials is needed.. 

https://www.youtube.com/watch?v=HIAddQmqlgE&lc=Ugjj0mlXZHY5h3gCoAEC.7-H0Z7-Trk-97y3oHF6r1J&feature=em-comments

A Super-cola, misturada com Maizena, faz-se num Plástico super-duro. Óptima para reparar de tudo um pouco, mas há outros Materiais a experimentar, com a Super-cola.

Super Glue And CINNAMON Has An UNEXPECTED ReactionThe King of Random 

Today we're mixing super glue, aka cyanoacrylate, with a few different substances, such as graphite, cinnamon, and baking soda. We'll also see how well you can cast coins with it. What kind of reactions will we get? 

https://www.youtube.com/watch?v=7XYPnHODt1E