Um Magnéstico dum Arduino, 56 usos de PVC, as melhores Gravadores Laser, as mais baratas Impressoras 3D, e 407 Ferramentas

Aqui está um uso para um Arduino, um Magnetoramo, para o que possam surgir que necessite de um medir algum Campo Magnético...

Arduino Magneto medidor

amamitof7 

What are we building?

Humans can't detect magnetic fields, but we use devices that rely on magnets all the time. Motors, compasses, rotation sensors, and wind turbines, for example, all require magnets for operation. This tutorial describes how to build an Arduino based magnetometer that senses magnetic field using three Hall effect sensors. The magnetic field vector at a location is displayed on a small screen using isometric projection.

What is an Arduino?

An Arduino is a small open-source user-friendly microcontroller. It has digital input and output pins. It also has analog input pins, which are useful for reading input from sensors. Different Arduino models are available. This tutorial describes how to use either the Arduino Uno or the Arduino MKR1010. However other models can be used too.

https://www.instructables.com/id/Arduino-Magnetometer/

Aqui vai uma grande de coisas porreiras que podem fazer com tubo PVC, 56 delas diferentes, de tudo um pouco!

The 56 Most Brilliant PVC Hacks You’ve Ever Seen
Nick Gerhardt 

What can’t you do with PVC pipe? Here are 56 incredibly smart (and cheap!) ways to use this do-it-all material around your home and workshop. 

https://www.familyhandyman.com/diy-advice/the-most-brilliant-pvc-hacks-ever-seen/

Se quizerem uma Gravadora Laser, aqui estão as melhores, e também a explicação do que elas fazem:

2019 Best Laser EngraversMax von Übel  

What's the best laser engraver? Check out our 2019 buyer's guide. Plus an introduction to laser engraving, services, and materials.
Home and office laser engraving have become so much easier these days. Once strictly used by industrial manufacturers, laser engraving is increasingly adopted by small businesses, product designers, makers, and even hobbyists.
In some cases, a laser engraver might prove to be the most advantageous manufacturing technology for your specific application.
Before pulling out your wallet, we have also compiled everything you need to know about laser engravers into a comprehensive guide to get you started in this great technology. 

https://all3dp.com/1/laser-engraver-engraving-machine/

E os mais acessáveis Impressoras 3D, MAS, estas, preciserão ser montadas, por vós, por isso, contem com umas horas às voltas nisso:

2019 Best Cheap DIY 3D Printer KitsAll3DP  

Do you want to build your own 3D printer with a low budget DIY 3D printer kit? Check out the best cheap DIY 3D printer kits you can buy right now.
Feeling brave enough to build a 3D printer from scratch? Assembling your own cheap DIY 3D printer kit is an attractive low-cost option if you’re on a tight budget.
It’s also a fantastic way to learn the nuts and bolts of how 3D printing works — quite literally. There’s no better way to understand the fundamentals of fused deposition modeling than by putting together your own machine. It’s highly satisfying, too. 

https://all3dp.com/1/best-cheap-diy-3d-printer-kit/

E mais uma longa lista, desta vez, 407 Máquinas Ferramentas de todo o tipo:

https://www.pinterest.pt/fernydiez10/máquinas/