Um Aspirador para a Fresa! E aprendam código, uma grande Delta, Polypanels, e um Manual de encaixes!

Ora cá temos esta bela desta ideia, para começar, o vosso próprio Aspirador para toda a limalha, lixo, e serradura que a vossa Fresa CNC produza, numa grande contribuição para o asseio, a segurança...
E para a paz doméstica! 
LOL

3D Printed Vacuum Cleaner for a CNC MachineNikus 

As I started to use my Dremel CNC more often I noticed that after milling wood and MDF there is a lot of thin dust everywhere around. I also faced a problem with aluminum chips that got stuck in a lead screw, so I added a cover for the lead screws but I knew that the best solution would be attaching a vacuum cleaner to the machine. I have a really big and loud workshop vacuum cleaner that is way too powerful for this task. While I was scrolling through posts in Dremel CNC builders group on Facebook I noticed Jan's post about his 3D printed vacuum cleaner. I thought that it's a really cool idea to build a small vacuum cleaner that I can put next to my CNC machine and keep it on all the time when CNC is milling. So I opened Fusion 360 at 1 AM and 2 hours later my very own 3D printed vacuum cleaner was ready to be printed. Before you will start reading this instructable you have to know that this was more of like an experiment than a project, I had no idea if it will work, I just did a quick research on the internet to find out how cyclonic separation works and how vacuum cleaner turbine looks like. But I have to say that this project exceeded my expectations a lot! 

https://www.instructables.com/id/3D-Printed-Vacuum-Cleaner-for-a-CNC-Machine/

É mesmo indispensável que conheçam alguma coisa do G-Code, porque, se se meterem no maravilhoso mundo da CNC, isso vai-vos poupar muita, mas mesmo muita, dor-de-cabeça...

Por isso, aprendam no link abaixo, como!

G-Code Generator – All You Need to Know

David Pechter  

These days, computer numerical control (CNC) machines range from 3D printers to lathes, mills, and engraving machines that use lasers, plasma, or water jets. Computer control manages tool movements, spindle speed and coolant flow for CNC lathes and mills, and extrusion and bed temperatures for 3D printers. Over time, a common computer language evolved for CNC: G-code.

G-code is the not-so-secret sauce that runs a 3D printer. Based on your STL model and your settings, your slicing program decides how to make your part. It takes into account layer thickness, infill percentage, support, adhesion, extrusion, and bed temperature to generate a G-code recipe for your part, which can be understood by your printer. Each motion of the printer is given, for example, to trace the perimeter, cross-hatch, or trace interior holes. Temperature control, extrusion, and retraction are also given in G-code. 

https://all3dp.com/2/g-code-generator-all-you-need-to-know/

...E se quizerem fazer uma ganda Delta, sigam o exemplo deste nosso amigo, que assim, já podem fazer estátuas do cão e dos filhotes!

Brutalmente porreiro!

3D Printer the C3Dt/bd (Big Delta)

Core3D

The C3Dt/bd is my latest 3D printer design and has been turning heads at various Maker Faires and most notably at the MidWest RepRap Festival 2019. It is large and and it is accurate and most importantly, most of it's parts are off the shelf. Following are some of the features of the C3Dt/bd:

• Build Volume: 330mm(dia)x1240mm

• Board: DuetWifi (24Volt)

• Screen: Panel Due

• Delta Smart Effector

• BondTech Extruder

• Flying extruder

• Hot-end: E3D

• Auto bed Leveling

• BuildTak Flex Plate system (magnetic bed)

• Built-in bed tensioning

• Haydn Huntley’s Magball Delta arms

• Easily detachable Flying extruder

• 110volt heated bed

• 6.8mm aluminum bed

• Nema 23 stepper motors

• Unique Cable Management

• Board cooling fans

• Parts cooling fan

• 40mm fan bracket for heatsink (reduces noise)

Optional wheels in case you move it a lot

Fair warning, this is NOT a budget printer. Parts can easily run into to the thousands, but you do get one nicely working printer out of this. This being my first Delta, I was concerned about calibration and troubleshooting but I found that with the combination of parts/features above, the setup was child's play compared to some of the other printers I have designed. 

https://www.instructables.com/id/3D-Printer-the-C3Dtbd-Big-Delta/

Polypanels

Make anything 

Welcome to the world of Polypanels, a system of snap together parts that let your build whatever you want! It’s like an open ended construction toy for making functional things, harnessing the power of 3D printing and the community to make it truly limitless. This page will teach you the basics of Polypanels to get you started making anything. 

https://www.makeanything.design/polypanels#DIY

E das grandes cabeças do famoso MIT, vem-nos esta Borla, da autoria da BASF, um Manual para que as vossas criações possam encaixar sem problemas, seja lá o que queiram, que  nelas encaixe...

Muito bom.

Snap-Fit Design ManualBASF 

This manual will guide you through the basics of snap-fit design, including: types of snap-fit designs and their applications; how to calculate the strength of the unit and amount of force needed for assembly; and the three common causes of failure in snap-fits and how to overcome them.

http://web.mit.edu/2.75/resources/random/Snap-Fit%20Design%20Manual.pdf

Ponham o Browser a render! E um Pantógrafo de corte por Plasma, uma Prensa Hidráulica, dobrar Metal no Torno, um Filtro de Fumo impresso em 3D, e muitos Fornos Rocket!!

E porque não, porem o vosso Browser a pingar Bitcoin?

É fácil, com este Browser, que eu já uso, e já estou a ganhar, dia a dia, sem chatices nem complicaçóes...

É bom!

Earn from browsing! 

The easiest way to earn Bitcoins? Just change your browser to CryptoTab and receive payments to your balance every 10 minutes. You will get BTC for simply using it, even if just having CryptoTab browser window open. It takes less than 1 minute to start earning -  

https://get.cryptobrowser.site/5873204

Nem todos podem ter uma Máquina CNC de Corte por Plasma...

Podem, ainda assim, construír este Pantógrafo, e cortar em placa de madeira, ou mesmo imprimir em 3D, uma Bitola, ou seja, uma peça que vai guiar a ponta do pantógrafo, para cortarem o que quizerem, em vários Materiais!

Build a Plasma Cutter Pantograph!Wildman Tech
I need a way to make clean and repeatable cuts with my plasma cutter. A CNC is a great answer that I don't have space for. Here is a compact and inexpensive solution to the problem. It is more accurately named a pattern follower because you make plywood patterns that it can cut over and over again.

https://www.youtube.com/watch?v=i7y6eQkIRug

Numa série de Vídeos, o nosso amigo Grego, Kess, ensina-nos a construír a vossa Prensa Hidráulica, de topo de Bancada, com o que podem executar um sem-fim de tarefas, que vão desde a estampagem e dobra de folha de Metal, às várias técnicas de Moldagem de Injecção, e até, inserir e extrair Rolamentos!

Vejam, que ficam com mais uma bela duma Ferramenta...

DIY Hydraulic Benchtop Press

kess_gr

Dimensions 750x470x320mm including the truss and the footings.

The main frame with the truss can handle a 6T jack mounded at the upper side of frame with no problems of distortions or cracks. If you plan to use a 3T jack, the truss can be skipped. 

It is a tool, that can handle vary tasks, according the dies that we have or that we will made. 

It is a circle without end.

What isHydraulic Press

A Hydraulic Press is a machine press using a hydraulic cylinder to generate a compressive force. It uses the hydraulic equivalent of a mechanical lever, and was also known as a Bramah press after the inventor, Joseph Bramah, of England. He invented and was issued a patent on this press in 1795. As Bramah (who is also known for his development of the flush toilet) installed toilets, he studied the existing literature on the motion of fluids and put this knowledge into the development of the press.

https://www.instructables.com/id/DIY-Hydraulic-Benchtop-Press/

E se já têem um Torno de Bancada, podem aprender aqui como dobrar Barras de Metal com ele, como deve de ser, de forma precisa e repetível:

Simple Vise Modifications to Bend MetalsThe other Finnish guy 

Hi
This is my instructable about simple modifications to vise, to make tidy bends to metals.
There is multiple methods and attachments for different bending tasks, i wanted to find a solution that uses mostly actual vise itself.
I have been building a new kind of vise, these modifications are kind of prototypes that I wanted to test before actual building. Decided to share these first, because its obvious that everyone doesn't want to build the whole vise by them self.
I used my diy vise as a base, but these can be used with commercial vises too. 

https://www.instructables.com/id/Simple-Vise-Modifications-to-Bend-Metals/

E se gostam de ter a vossa rica Saúde, podem aproveitar para fazer este pequeno e simples, mas eficaz Filtro que vos limpa o Ar que respiram!

Minimalist 3D Printed Fume Extractorrdmmkr in
Breathing solder fumes can cause serious health problems, a fume extractor is a cheap and easy way to minimize the inhalation of such fumes.
In this instructable I will show you how I designed and built this minimalist mostly 3D printed fume extractor; My goal was to make something functional, aesthetically appealing, inexpensive, compact and simple.
An important feature of this project is the removable filter cartridge that makes changing the activated carbon filter effortless and allows you to use the filters of the Hakko 491, 493, FA-400 fume extractors which are easy to find.
https://www.instructables.com/id/Minimalist-3D-Printed-Fume-Extractor/

E à laia de Brinde, aqui vão umas dezenas de Páginas sobre o fantástico Forno Rocket!

Vejam qual é o que gostam mais, e é assim que se encontra uma quantidade de ideias e Engenhocas de toda a espécie...

https://www.pinterest.pt/pin/616359898984184849/?lp=true

Ganda Impressora! E uma Laser CNC, uma Cana de Pesca portátil(!), Moldagem sem falhas,

O nosso amigo Angus traz-nos esta Bizarma desta Impressora, da Hungria, País surpreendente, e há muitas boas razões para o entusiasmo dele...

E para o meu entusiasmo, também!

Maravilha.

CraftBot 3 3D Printer Review - Heavy Duty IDEX Beast

Maker's Muse

Today we're checking out the CraftBot 3! A huge, heavily built 3D Printer with Independent Dual Extrusion (IDEX) from CraftUnique, Hungary.

https://www.youtube.com/watch?v=kaEVkuYJVi0&t=6s

Da enigmática Empresa J&R Technology vem-nos este vídeo duma Laser CNC de Fibra, caso sério, pois corta METAL!
Boa!
O link para a Empresa está no vídeo:

Fiber Metal Cutting Demo Video from J&R
J&R Technology

J&R specialized in design, R&D and production of CO2&fiber laser machines for cutting, engraving, and marking.

https://www.youtube.com/watch?v=kaEVkuYJVi0&t=6s

Algo de fantástico, uma Cana de pesca Portátil, que podem imprimir, nas vossas Impressoras, para exibir à Malta...

PortaReel Portable Fishing Pole

MechEngineerMike

This is our originally designed "PortaReel" Portable Fishing Pole! Its the smallest full function fishing rod available, a super useful tool to add to your fishing toolbox!

https://www.instructables.com/id/PortaReel-Portable-Fishing-Pole/

Isto é importantíssimo!

Tanto pela Técnica de produdcção de excelentes peças de fundição usando vácuo;

Quanto pela Cera de moldagem, que é mesmo superior;

Como, até, pela própria BOMBA DE VÁCUO que pode servir para N engenhoquices diferentes!

Fenomenal.

EASY build Vacuum Casting machine system for Lost Wax / PLA Casting - DIY chamber & Pump : lwc #6
VegOilGuy

Vacuum casting machines are expensive. But can you make one? YES… here’s a easy, simple construction, low cost vacuum arrangement to assist with you lost wax or lost PLA casting. Many of the parts you may already have lying around and the rest are cheap as chips. Building a vacuum system has literally saved me thousands and just as importantly it’s dramatically improved the quality of my metal castings… beautiful, clear and precise details matching exactly the original wax pattern, with no pockets, no porosity and no sand. This really is a cheap and simple solution to better lost wax casting!

https://www.youtube.com/watch?v=EGNnH_xbjR4

Só coisas boas!

Agora é esta pequena maravilha de Fresa CNC, da qual, que podem Imprimir muitas das partes!

Toca a fazer uma, e mais nada!

DIY 3D Printed Dremel CNC

Nikus

When I got my first 3D printer I was extremely happy with all the new possibilities to create things but after some time I noticed the limitations of 3D printing. Plastic is easy to melt, sometimes it's not mechanically resistant enough and most importantly sometimes doesn't look good. Don't take me wrong here, I love 3D printing and I like plastic (except plastic waste) but there are things that look, work or feel way better when made out of nonplastic material. Imagine all your furniture made out of plastic. Sometimes I prefer wood, when I need strength, metal (mostly aluminum) is a way to go. That's where CNC milling machines are used. Usually, the cost of such machine is really high, most of the hobbyist, small makers can't afford such expensive equipment. That's why the idea of building my own CNC machine sparked in my head.

https://www.instructables.com/id/DIY-3D-Printed-Dremel-CNC/

E terminamos por hoje, com esta ideia Estratosférica, atenção, malta das Universidades, como fazerem os vossos próprios Balões Estratosféricos, para o bem da CIÊNCIA!

MUÁHÁHÁHÁHÁHÁ!

How to Make a Picoballoon

Jakub_Nagy

What is a picoballoon and why would I want to build it?! I hear you ask. Let me explain. You all probably know what a HAB (High Altitude Balloon) is. It's a bunch of weird electronics stuff connected to a balloon. There are soooo many tutorials regarding HABs here on Instructables.
BUT, and that's a very big BUT what they don't tell you most times in the tutorial is the cost of the filling gas. Now, you can build a decent HAB tracker under 50€, but if it weighs 200g (which is a pretty optimistic guess with the batteries, cameras, etc.) the helium to fill the balloon can cost you 200€ or more, which is just too much for many makers like me.
So, as you can guess, picoballoons solve this problem by just not being bulky and heavy. Picoballoon is just a word for a light HAB. Light, what do I mean by light? In general, picoballoons are lighter than 20g. Now, just imagine that a processor, transmitter, a PCB, GPS, antennas, a solar panel and also a battery with a mass same as a disposable coffee cup or a spoon. Isn't that just insane?

https://www.instructables.com/id/How-to-Make-a-Picoballoon/

Moldes! E a Shapeoko, uma CNC Modular, uma Escritora de Pavimento, e uma 3ª Mão!

A Impressão 3D demora muito tempo!

Mas os Moldes para Injecção de Plástico, permitem-vos produzir não uma ou duas, mas centenas de peças.

O que vos resolve uma data de chatiçes...

E vos dá muito mais DINHEIRO!

 

10 CAD Tricks for Mold Design

Michael LaFleche

Mold design is one of the most complex aspects of product design. Not only are the part geometries challenging, but the timeline to get jobs quoted and manufactured are tight. OEM design companies sending designs to contract mold designers is typically the last stage of the design cycle, and “tooling up” can be some of the most expensive parts of the project.
Luckily, there are some mistakes that part designers and mold makers can avoid to reduce time and cost.

https://www.onshape.com/cad-blog/10-cad-tricks-for-mold-design

Eis a ùltima Fresa CNC Shapeoko, e vem carregada de novidades, para uma máquina que já era uma maravilha, como estava:

2019 Shapeoko 3 (XXL) CNC Kit Review – Editor’s Choice
Tyler Koslow

Arguably the most popular “desktop-sized” CNC router of the day, the Shapeoko 3 from Carbide 3D has origins waaay back in 2011, when its creator Edward Ford launched Project ShapeOko on Kickstarter.
A sub-$300 open-source CNC machine kit, Project ShapeOko was an affordable entry point into the world of CNC carving, achieving the fantastic feat of simplifying the procurement of parts for an open source project.
With a build comprised of electronics, plus other sundry items such as laser cut plywood sourceable from Shapeways and Ponoko (hence, ShapeOko) and one other provider, Ford’s original machine was a trailblazer.
Fast forward seven years, and much has changed. In 2014 Ford joined forces with CNC machine and CAD/CAM software company Carbide 3D, becoming a partner and VP.


https://all3dp.com/1/shapeoko-3-xxl-review-specs-carbide-3d/

...Mas esta máquina é impressionante, Impressora, Fresa, e Laser CNC, basta mudar as cabeças.

E fazem-na em casa!

Modular DIY CNC V2

jtaggard

I build my first CNC about a year ago and learned a lot from the process. As an engineer I'm always looking at ways to improve things, and my first machine was no exception. The process began with some small changes which quickly turned into the opportunity to overhaul the design even more to better suit my needs (an overview of these changes is detailed in the next step).

https://www.instructables.com/id/Modular-DIY-CNC-V2/

Uma Impressora, mas para escrever no chão, algo que suspeito, vai ser muito usado em MakerFaires...

StreetWriter

charlesglorioso

I started this project because I wanted to make my mark on the world but didn’t want to leave any aftereffects.
I also wanted a challenging project for my new 3D printer that involved some Arduino Programming.
Finally, I like to build things using as much “found” stuff as possible.
As the videos show, StreetWriter does all of that. It writes 8 inch high messages in water on the pavement as it moves, and leaves no trace once the water evaporates.
I have built two StreetWriters, with minor design differences between them, This Instructable, is based on the second build which is somewhat improved.
In StreetWriter, water is pressurized and fed to a manifold which carries 8 automotive fuel injectors. As StreetWriter moves forward, the Arduino controls the fuel injectors, squirting water onto the pavement. The message to be written is one of 8 that have been written onto an SD Card plugged into the Arduino. The operator can easily select among the messages and can create new messages on the SD card at a computer. There is no length limit on any one message other than the amount of water in the pressure tank. The longest message I have written so far is PI to 300 places.

https://www.instructables.com/id/StreetWriter/

...E acaba-se, por hoje, com esta 3ª Mão, para não terem uma crise de nervos, nem quemarem os dedos, quando estão sós, na oficina!

Magnetic 3rd Hand
lonesoulsurfer

Anyone who plays arounsd with elecronics knows how important a 3rd hand is. It gives you the ability to hold solder in one hand and the soldering iron in the other and easily add solder to a component.
I've been using some homemade 3rd hands for some time and can't imagine building a circuit without one. Recently I was using a couple of magnets for a project and a resister got stuck to it. I had a bit of an epiphany and realised that adding a magnet to a 3rd hand would be a quick and easy way to hold a part whist I add solder to it.
The project is an easy one and will definitely become a welcome addition to your solder station.

https://www.instructables.com/id/Magnetic-3rd-Hand/

Impressora 3D Portuguesa! E uma fresa CNC económica, a Lista de Geller, solas à medida, e packs de baterias de Lítio!

A BeeVeryCreative, 100% Portuguesa, está de parabéns, com este magnífico Kit, uma sólida e inovadora Impressora 3D, que o nosso Amigo, Angus, revê, sem favores, mas com justiça, e muito positivamente:

This is an i3 KIT you'll want to check out - B2X300 Review

Maker0s Muse

The B2X300 is a Huge, Open Source 3D Printer Kit with 2019 smarts and a killer design - but is it right for you? Watch to find out!

https://www.youtube.com/watch?v=UybUTWrK-GM

Para poderem ter uma Fresa CNC em casa, por 500€:

LOW COST DIY 500€ CNC MILL
Vulcaman

Hi,
in this Instructable I want to show you, how you can build your own CNC-Mill for less then 500€. I designed this machine for CNC-beginners, who don't want to spend a lot of money for their first experiences with CNC machines but also expecting a rigid and professional looking CNC.
This machine is perfect for maker, tinkerer and everyone who wants to start CNC-Machining.
In the pricerange of sub 500€ you will not find any other CNC with these features:

•  710 Watt spindle motor
•  MGN linear-rails on all axis
•  1204 ballscrews on all axis
•  effective workarea of 250x220mm
•  max. travelspeed of 3000mm/min (at 12V)
•  high accuracy of 0.1mm in all axis
•  super rigidportal frame (out of one piece of wood and aluminium extrusions)

https://www.instructables.com/id/LOW-COST-DIY-500-CNC-MILL/

Algo de muito útil, a lista dos tópicos dos fantásticos Vídeos de Dan Gelbart, um Génio da construcção de Protótipos, e penso TODOS os Engenhocas deviam ver os seus vídeos, para evitarem muita dor-de-cabeça, e fazerem muitas mais coisas do que pensam possíveis, com os meios de que dispôem:

Dan Gelbart : How to Build Stuff

Al-Hala

Dan Gelbart has an excellent and well-presented series on YouTube on machines and prototyping. It`s a short course on how to build stuff aimed at students, researchers and others who are not machinists by trade. It`s applicable to prototyping and limited production with enabling technology in 18 parts, which I’ve listed links to below. Note: the chapters were obviously shot out of sequence, as there is referral to `as we`ve seen before` when we have not. It`s not that bothersome.

http://technobauble.ca/machining/dan-gelbart-how-to-build-stuff/

Para o bem dos vossos pés, têem agora este Site onde podem desenhar solas para os vossoa sapatos, para imprimirem em Filamento flexível, e até, solas correctoras de defeitos!

What is Gensole?

Gensole is a browser based tool which allows you to design insoles, optimised for 3D printing using the FDM process and Filaflex (TPE/TPU) type materials. It will ultimately export .AMF files for importing into Slic3r for 3D printer toolpath creation.
It is free for makers, and researchers for non-commercial use :

http://gensole.com/

...E acabamos, por hoje, com este Instructable para os que precisam de uma série de Baterias de Lítio para toda a espécie de Enhenhocas!

How to Make a 18650 Li-ion Battery Pack!

Nematic!

18650 Li-ion cells are a great way to power Projects. Which provides a nominal voltage of 3.7V which is not sufficient for most of the application for let's say you want to power a BLDC motor with an ESC which requires 9V to start. So we need more voltage which can be achieved by connecting them in series. So in this tutorial, I will show you how you can make a 18650 Li-ion Battery Pack with a BMS circuit and all the things you need to know before you built one!

https://www.instructables.com/id/How-to-Make-a-18650-Li-ion-Battery-Pack/

Um Clone de Prusa! E um Escafandro feito em espuma(!), dobrar cartão, uma Empilhadora R/C, e um Gerador de Sinais de RF

Um Clone da Impressora Prusa, e ainda por cima, o mais Económico possível?

É BOM!

Vejam aqui como se faz, e assim, mais gente poderá ter uma Impressora 3D...

Ou, os que já as tèem, podem ter ainda mais! 

LOL

Building the cheapest possible Prusa i3 MK2
Tom

What is the cheapest possible, real 3D printer you can buy without making one compromise after the other? That’s the question we’re asking by building a Prusa i3 MK2-style 3D printer that comes with most of the important features of the original one from Josef Prusa and requires a bit more work for sourcing and building the machine, but most importantly, we’re going to build it only with the most affordable set of parts.
This page will serve as a hub for part lists and build guides as the project moves along! All build videos and the accompanying project videos have been organized into a neat playlist!

https://toms3d.org/2017/02/23/building-cheapest-possible-prusa-i3-mk2/

Por incrível que pareça, podem fazer ISTO, com Placa de Espuma de Plástico, e por isso, é de aproveitar, malta!

Recriação Histórica, Carnavais e Espectáculos, Montras de Lojas, um sem-fim de usos...

Recreating an Antique Divers Helmet From Foam
LostWax

I love the ocean. I can sit on the beach all day just watching the waves do their wavey thing. Sadly, I happen to live in the middle of the Canadian prairies. No ocean to watch here. But there's always the world of make-believe, and what better way to get in the ocean vibe than with an amazing deep sea diver costume. I created this costume pattern to try and recreate the feel of the classic "Mark V" dive helmet which has become an iconic image of divers and the sea. It was used by the U.S. Navy from 1916 until 1984! Let's make one of our own.

https://www.instructables.com/id/Recreating-an-Antique-Divers-Helmet-From-Foam/

Eis mais algo de simplesmente espectacular, na sua simplicidade, uma Ferramenta para dobrar aquele Cartão que podem ter por aí, para uma série de novos usos:

Cardboard Bender
nml235l

A tool is something that makes life easier and more convenient. I have got a rather huge mass of cardboard (a cause of a new furnishings :-)) and appropriate number of ideas to make something with it (Bag for Containers). One problem is bend operations. Cardboard plates have a multiply layer (as usual) so I get clumsy splits during bending. To prevent such behavior I decided to flatten cardboard according the bend line. At this moment we get situation for a ... NEW TOOL. How to make flattening along the path? Certainly, using a one of the ancient inventions – the Wheel. We need only move the wheel (roller) along the path on cardboard surface with giving insignificant pressure. This principle we use in home preservation to connect bank and cover (or let's remember about the roller-machine for road construction). Concept of a tool is very simple: roller (wheel) and handle – nothing more.

https://www.instructables.com/id/Cardboard-Bender/

Este é um projecto que vai ser a alegria de muita gente, ainda mais porque é Open Source, todas as peças e planos à mão, para todos tentarem...

Uma Empilhadora em miniatura, tele-controlada, até a partir dos vossos Smartphones!

Dá para a mandar ir buscar os chinelos, do sofá...

Arduino Forklift

Leon van den Beukel

This is a video about making a remote controlled forklift car. I've used Fusion 360 to design and create the 3D printed parts and CNC machining templates. If you don't have a CNC machine you can also use a jigsaw to cut out the wooden parts. I've provided the cutting templates, sources and 3D printing STL files on my GitHub page:

https://github.com/leonvandenbeukel/F...

https://www.youtube.com/watch?v=_YNgo8A7p8A&feature=youtu.be

Este Gerador de Sinais para Rádio-Frequência, vai fazer a alegria dos Macanudos, aquela malta dos Rádio-Amadores, um equipamento que serve para afinar os vossos emissores:

RF Signal Generator
Milen

The RF signal generator is a must to have tool when playing with radio receivers. It is used to tune a resonant circuits and adjust the gain of different RF stages. Very useful feature of the RF Signal generator is its modulation capability. If it can modulate the frequency amplitude or frequency makes it non replaceable tool for RF design works.
Some time ago I have designed an AM modulator, which could be used for such purposes. It works fine in some cases, but it has the disadvantage to be not able to work as standalone device. It requires additionally power supply module and two signal generators - for the RF carrier frequency and for the modulating signal. This makes it inconvenient to work with it outside the house. I decided to create an RF signal generator working as fully functional stand alone device. Instead to base the architecture on the modern DDS chip, I decided to use the analog approach. As a basis I have chose an existing RF signal generator published here. Similar design is described also here. The credits for this design go to their authors. I repeated mainly the first design adding additional digital frequency counter instead the not very precisely radial scale analog calibration.

https://www.instructables.com/id/RF-Signal-Generator/