O melhor trabalho até agora, que eu tenha visto, para transformarem um Engenho de furar num Torno de Madeira sólido e práctico!
Homemade Woodworking Lathe
This My Homemade Lathe I made Last year. It consists of An old drill press and Off cuts I had Leftover in the shop. Rails are from An Old louvre door some pine and for the rotating centre I used the bit/ collet end from an old router that was broke. I use this quite often and it still works great.
Já vos mostrei outros Geradores de Engrenagens, mas este é mais completo, com engrenagens complexas, de rodas dentadas múltiplas:
Didáctica, simples, mas engenhosa, esta Onda Mecânica mostra-vos como funcionam as ondas, ou seja, o mecanismo ondulantário, e o que ancontece quando a Onda começa no meio, ou nas extremidades, etc:
Mini Wave ModelThe Oakland Toy LabA little wave goes a long way!The mini wave model is small but mighty. With just a few minutes of set-up, it's just as good at demonstrating as its bigger siblings. This is a great model for waves that move, reflect, stand, and wiggle, perfect for a starter project in classrooms learning about waves and motion.What: Mini Wave ModelConcepts: waves, propagation, physicsTime: ~15 minutes to set upCost: ~$1.50Materials:Bolts x 2 (with nuts that fit)Nuts x 40 (or so)Sticks (I used candy sticks, but cut dowel or other sticks work great, too)StringBlock of wood (2x4 works great)Tools:DrillHot glue gun / hot glueRulerScissorsMakeHop on the wave!
Uma ideia que nos faz sentir melhor com a Humanidade, aqui está Ada, uma Mão Protésica, que pode ser feita para qualquer um, em qualquer lado, tudo Open Source, Bravo, Inventores do Grupo Open Bionics!
Ada Robotic Hand - Open Bionics
This is a step by step guide on how to make an Open Bionics Ada robotic hand. This is derived from the Dextrus robotic hand, by the Open Hand Project. It assumes you have either ordered the Ada robotic hand kit or have access to a 3D printer are planning to print 3D parts from YouMagine or thingiverse. The list of required 3D printed parts, components and tools are stated below. If you have ordered the Ada kit, you can skip the first step and start straight from step 2.This hand would provide an excellent research platform for robotics or a test platform for prosthetics research. It has been designed to be easy to build and repair and should be a great project for someone with interests in robotics or prosthetics and wants their very own robotic hand!