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https://www.bcn3d.com/the-beginners-guide-to-3d-printing-6-steps/

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3D printing is an ever-evolving and expanding field. If you're a beginner at 3D printing , the number of possibilities and applications can seem so vast, it can be a bit overwhelming when you're just starting to know how to 3D print and how to use a 3D printer.

In this beginner's guide to 3D printing, we'll explain what exactly 3D printing is, how it works, how to 3D print, the best materials for beginners, and what you need to get started.

What is 3D Printing?

3D printing is the process of creating a three-dimensional object, usually done by systematically layering material on top of itself. The printer reads a digital file from the computer which dictates how to layer the material to build the object.

This is why 3D printing is also known as additive manufacturing. 3D printing and additive manufacturing are mostly synonymous, although you may hear additive manufacturing used more frequently in the context of mass consumption or mass manufacturing.

How to 3D Print:

Depending on the specific print you are planning to do there could be more or fewer steps in your process. But in general, 3D printing involves the following actions:

Step 1: Create or Find a Design

The first step of 3D printing typically starts on a computer. You must create your design using a 3D design software, typically a CAD (computer-aided design) software. If you are unable to create the design yourself, you can also find many free resources online with free designs.

Step 2: Export the STL File

Once you have created or chosen a design, you must either export or download the STL file. The STL file is what stores the information about your conceptual 3D object.

Step 3: Choose Your Materials

Typically you may have an idea about what kind of material you will use before you print. There are many different 3D printing materials available, and you can choose them based on the properties that you want your object to have. We will discuss this more in-depth below .

Step 4: Choose Your Parameters

The next step is then deciding on the different parameters of your object and the printing process. This includes deciding on the size and placement of your print.

Step 5: Create the Gcode

You will then import the STL file into a slicing software, like . The slicing software will convert the information from the STL file into a Gcode, which is a specific code containing exact instructions for the printer.

Step 6: Print

This is when the magic happens! The printer will create the object layer by layer. Depending on the size of your object, your printer, and the materials used, the job can be done in a matter of minutes or over several hours.

Depending on what you want your final product to be or the material you used, there may be additional post-processing steps after printing, like painting, brushing off powder, etc.

What is 3D Printing Used For?

3D printing can be used both recreationally and professionally, across various industries. It has applications in many different fields and sectors, from the healthcare industry to engineering , and even .

Increasingly, 3D printing is seen as a sustainable and cost-friendly solution for creating prototypes and tools for different manufacturing projects and processes. Traditionally, acquiring prototypes can be time-consuming and costly, requiring companies to depend on outside manufacturers. 3D printing allows companies to quickly make units of an object, tool, or prototype, all in-house.

A great example of this is shoe company Camper. In-house 3D printing has allowed them to transform their nearly month and a half long modeling and designing process into an operation that takes only several days.

3D Printing For Beginners: How To Get Started

So, what do you need to get started with 3D printing? Your specific needs will depend on why and what you want to print, but in general, there are three considerations for getting started:

If you plan on creating your own designs you will also need the appropriate designing software. But, as we mentioned earlier, you can also find many free resources online to download designs.

If you have not yet purchased a 3D printer, we have a guide that can help steer you through the most important considerations.

3D printer Filaments

The material also called filament, you choose for your print will depend on many different factors:

These are just some of the factors to consider when choosing your filament.

In general, most beginners start with PLA. This is because PLA is cost-effective and typically easy to print with a standard configuration. Depending on your specific project, PLA could be good starter material.

PET-G is also considered a beginner-friendly material, although it is a bit more technical than PLA. However, it is great for industries like engineering and manufacturing. It is a good material for functional prototypes because it can withstand higher temperatures and has a different chemical makeup that is ideal for these uses.

Software

There are two important pieces of software for 3D printing: CAD and slicing software.

Typically, you can use any CAD system that can create a functional model. CAD is essential if you want to create your own models and objects. You must be able to export an STL file from your CAD software.

The slicing software is the second part of the equation. This software translates the STL file into a language that the printer can understand. The Gcode contains movement information that tells the printer how and where to move its axis, as well as how much material to deposit. The Gcode is sent to the printer via an SD card or wifi.

Final Thoughts

3D printing is now more beginner-friendly than it has ever been. In the beginning, many people saw 3D printing as something inaccessible to the major public, but this sentiment is changing, and for good reason. While it takes practice to perfect your prints and technique, learning how to 3D print is an attainable skill.

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How to 3D print? The Beginner's Guide to 3D Printing

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3D printing is an ever-evolving and expanding field. If you're a beginner at 3D printing , the number of possibilities and applications can seem so vast, it can be a bit overwhelming when you're just starting to know how to 3D print and how to use a 3D printer.

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https://www.elecfreaks.com/ef92a-micro-servo-180-degrees-analog-servo-for-micro-bit.html

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EF92A is a kind of 180 deg analog servo. It is light and portable, a little bigger than 5 cent coin. It works at 3V voltage and can be used to make small robot modules, mechanical arm modules and intelligent car modules.

DESCRIPTION

Almost all the micro bit servo in the market have to be driven by 5V, but the normal working voltage for micro:bit is 3V. It is embarrassing to drive a 5V servo with a micro:bit. Thus, we have customized these two servos that can be driven by two batteries with the lowest working voltage at 2.7V. It is the first batch of the micro bit servo designed for the micro:bit in the market.

CHARACTERISTICS
LOW WORKING VOLTAGE
Compatible to 3V-5.5V(With 2.7V at least), designed for micro:bit.
The high linearity makes its control more accurate.
It is designed for micro:bit with high-linearity, which gives you a smooth feel of control.
Durable gears
SPECIFICATION

Item Parameter

Product SKU

EF09082

Operating Voltage

3.0V-5.5V

Output Torque

1.6KG/CM

Specialty

3V for micro:bit

Operating Temperature

-30°C~+60°C

Connection line

banana line

Materials

Plastic gears and plastic shell

Other Components

Fixed screws, multifunction Steering wheel.

Type

EF92A

Rotation Angle

180°

Dead Band Width

5us

Plug Type

Common JR/FUTABA

Servo Type

Analog servo

PACKAGE LIST

Item Quantity

EF92A micro bit servo 180 degrees analog servo for micro:bit

1

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ELECFREAKS micro:servo (180 Degrees Digital Servo)

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EF92A is a kind of 180 deg analog servo. It is light and portable, a little bigger than 5 cent coin. It works at 3V voltage and can be used to make small robot modules, mechanical arm modules and intelligent car modules.

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https://detail.tmall.com/item.htm?id=672003627941&ali_trackid=2:mm_134011580_2607650495_114580150023:1668877660_015_1735613958&union_lens=lensId:OPT@1668877658@2132c41b_0b87_18490dc29cd_6590@01;recoveryid:201_33.60.105.37_4540554_1668877637486;prepvid:201_33.44.62.36_16155293_1668877658299&fromUld=1&spm=a2e0b.27129982.1_1.d1654498297981&bxsign=tbkiJkBifJH2RTcToEIELsIz17GTM-k4ngWflRQj0wUMU6FOeKFSrDyKz2Ru_azgw1njO3H_cvJerPDlIlf5RCgbtVIvrbCyEMXhbOgvvo77mH4WDNzlmIp09HTWGGaSGqn&skuId=5092275551500

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Tailor made and fit the size perfectly.

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https://youtu.be/PogY7uA3N4A

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Press button A to control the wiper manually

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- Detect rainning data with humidity sensor

-Display rainfall data in micro:bit

-When a certain amount of rainfall is reached, the servo motor will be automatically activated to move the wipers

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There will be an umbrella pattern at the beginning to indicate the start, set servo motor to 0.

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Not only can remove rain but also measure the humidity in its environment

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Change the size of rain wiper which can fit to the rearview

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Combine rain wiper and humidity sensor

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The side mirrors are concave in shape. If a regular wiper is used, it is hard to wipe the bordering of mirror. Also, if the contact surface of the wiper and mirror is smaller, the water can be more easily to wipe out.

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1st cycle

Design purpose:

We want the wiper can be automatically switched on when there is raining.

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Evaluate:

The data from moisture seneor is stable. It can also detect the level of rain. We can use the data to set up different level of speed of  the rain wiper.

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Plan & Create :

We would like to use moisture sensor to detect the data.

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2nd  cycle

Design purpose:

To collect data in real time

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Evaluate:

The current is erratic and hard to have a stable value.
If conductive material is used, there are tiny change in current.
If water absorption material is used, the wiper still activate when raining is over as the material haven't dry and no changes in current.

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Create:

We used crocodile clip and connect it with plane to detect the current.

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Plan:

We would like to detect the change in current in various moisture level.

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1. Use waterproof materials to cover Microbit

2. Change the way of assembly
-Refer to Wood joint technique (木工榫接技法)

3.  Installed inside the car

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1. Waterproof problem
- Microbit is not waterproof

2. Inconvenient to install
- Needs lots of screws to install

3. The risk of falling off
-Water affects viscosity
-Unsightly

4. Hard to adjust the rearview mirror
- If we move the rear mirror with other angle, it will affect the effectiveness of the product

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- Enhance function (Humidity sensor)

- Fulfill driver's needs

- Still have some technical problem which affect the product effectiveness

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- Specific product
- Using creative design thinking

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- Product Wingman (Autometic Cleaning Rearview)

- Test is it available
- Fulfill the driver's needs
- Improve our design

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- Wingman (Autometic Cleaning Rearview)

-3D printing and Microbit

1. Provide water wipe function

2. Provide humidity information

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- Rain wiper for side mirrors
- Automatically

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-The outside rearview mirror and side windows are covered with raindrops
-Hard to see the situation behind your car

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- Driver

- Hard to clearly judge the rear situation in rainy day

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5. Videos on Autometic Cleaning Rearview

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5. Videos on Autometic Cleaning Rearview

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5. Sample Photos on Autometic Cleaning Rearview

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5. Sample Photos on Autometic Cleaning Rearview

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3. Application on 3D Printing & Microbit

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3. Application on 3D Printing & Microbit

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-Difficult to apply evenly

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2. Compare and Contrast with Existing Solutions

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2. Compare and Contrast with Existing Solutions

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-Not all types of cars have this feature
-Cumbersome installation
-Expensive

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-The thickness will affect the adjustment of the rearview mirror itself.

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The inability to clearly judge the rear situation

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The inability to clearly judge the rear situation