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How to Choose Best Closed Loop Stepper Motors Right for You

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How to Choose Best Closed Loop Stepper Motors Right for You

CNC blog readers often ask me how to design a stepper motor and choose which to apply now. What are the most important criteria when choosing a stepper motor?

Anyone who has ever purchased a Closed Loop Stepper Motors knows that there are many stepper motors in various designs, sizes, and performance classes on the market. You can easily track things without proper setup and stand in front of an array of engines like the ideal “Ochs vorm Berg”.

But do not panic! Closed Loop Stepper Motors design and selection is not rocket science either. You just must keep a few simple things in mind. In this article, I will give you the best advice for designing and selecting stepper motors. Here you will learn:

  • What kinds of stepper motors are there?
  • What are the main characteristics of the stepper motor?
  • How to calculate the required performance data from your application

Well, fresh to work. Do not waste time and read quickly!

What types of stepper motors are available?

A Closed Loop Stepper Motors is a motor, which can be seen mechanically, to perform a single partial revolution – one step – by appropriate control. Many steps together lead in turn. You can see a nice animation on Nanotec. In principle, stepper motors are divided into the following three designs:

1.Closed Loop Stepper Motors frequency

In the impedance stepper motor, the rotor is designed without winding copper and without magnet. This rotor is made of soft magnetic material (fine iron) and has small teeth in its vicinity.

If you turn this operating shaft in the off state, you will not notice any resistance or lock.

When the stator is activated, the field lines pass through the soft magnetic rotor. Since field lines find a shorter path back to the stator through the teeth, the force acts on the rotor leading to its rotation. By intelligently activating the stator, the rotor is always rotated step by step.

Due to the sophisticated control electronics and the lack of self-locking (no magnets!), Frequency drives are only suitable for specialized applications.

2.Permanent magnet stepping motor

The permanent magnet stepper motors usually have a stator with two winding threads (4 connections). The rotor is equipped with a permanent magnet. If you turn this Closed Loop Stepper Motors that is turned off and unplugged, you can feel sudden dizziness. The lock is noticeable due to the north-south magnet on the rotor.

The most common version is the so-called Closed Loop Stepper Motors clutch pole. Due to its simple design, the pole clutch Closed Loop Stepper Motors is the cheapest type of Closed Loop Stepper Motors on the market. Clutch stepper motors, however, have defects of step size and torque compared to hybrid stepper motors.

3.Hybrid stepper motor

Hybrid stepper motors combine the advantages of frequency drives and permanent stepper motors. In the case of motors with a hybrid stepper, a permanent magnet is placed on the rotor. At the same time, two soft sprockets are placed, half of which are offset. In this design, the hybrid Closed Loop Stepper Motors achieves higher torque with the most accurate splitting of steps. Almost all stepper motors that you can buy currently on the market are hybrid stepper motors.

The most important characteristics of the stepper design are …?

To distinguish between stepper motors, you must know what is especially important:

Torque and torque hold

Torque is one of the most important criteria when choosing a stepper motor. Since the torque is largely dependent on the speed, there is also a fixed or suspended torque. This indicates what the engine can do in a deadlock.

Step angle and number of steps in the revolution

For each stepper motor, the step angle is indicated on the board or on the datasheet. For example, a step angle of 1.8 degrees means that the engine makes one complete revolution in 200 steps. (1.8 ° * 200 = 360 ° == one cycle)

By controlling the Closed Loop Stepper Motors with split half, quarter, or eighth, you can improve screen resolution. Before buying, you should think exactly how to position you with a stepper motor.

Number of stages and types of communication

The Closed Loop Stepper Motors can be connected as follows:

  • Do not eavesdrop on money
  • Tap center
  • Common eavesdropping

Closed Loop Stepper Motors with 4-phase connections is usually a bipolar stepper motor. This means that the current is transmitted during one stage in one direction and in the other (the poles = two poles).

The six-link Closed Loop Stepper Motors is usually a unipolar stepper motor, but under certain conditions, it can also be controlled by a dipole.

Inductance and resistance coils

Now he is getting electricity. To ensure that the engine also reaches the nominal power or nominal torque specified on the board, you must supply it with a voltage source. The mains supply must be able to provide corresponding high currents without voltage drop. Closed Loop Stepper Motors controllers work with the current control, so you don’t have to worry about the current.

Attention, stepper motors can be connected in series and in parallel. I will add more to this and choose the power source at this point.

The current maximum stage

The current stage or the current stage specified in the datasheet or nameplate should not be overridden. Otherwise, the Closed Loop Stepper Motors may overheat and fail.

Mechanical connection

The Closed Loop Stepper Motors flange dimension is usually standardized according to NEMA (National Association of American Electrical Appliance Manufacturers). The most common sizes are Nema 17 (aperture pattern 42 x 42), Nema 23 (aperture pattern 56 x 56) and Nema 42 (with an aperture pattern of 86 x 86 for connected flange).

You can easily use the drive shaft for Closed Loop Stepper Motorseg peer connection using Rotex coupling. These joints with a plastic fixation have proven themselves in practice as they dampen vibrations and shocks well.

Position and angle of measurement

All cheap and common stepper motors have no built-in angle or speed sensor. In the Standard Edition, stepper motors are “initially” only suitable for control tasks.

To format drive 0’s position when turning on the device, you must first manipulate a reference key while running an exact reference. The zero position is determined by the reference range. Since you control the Closed Loop Stepper Motors with a specified number of steps, you can easily calculate how many steps the Closed Loop Stepper Motors should move from the reference point.

The disadvantage of this type of position measurement is that the step overload occurs when the motor is overloaded, which causes the calculated position to be invalidated.

If you need high accuracy GPS positioning and repetition or a control ring in your application, you should also integrate the rotation angle sensor or position sensor into the drive assembly.

I did, as far as gray theory! But how do I design the right Closed Loop Stepper Motors now?

This is how you calculate the required performance data from your application

Calculation of a Closed Loop Stepper Motors for a direct rotary motor

At this point, the required torque for the Closed Loop Stepper Motors is given directly from your application. You just must think about whether the torque needs additional increment in order to achieve a certain acceleration or acceleration time.

Calculation of stepper motors for helical gear

If you are using a Closed Loop Stepper Motors to drive a screw gear (like a trapezoidal screw, ball screw, threaded rod, etc.), i.e. converting the rotational motion of the Closed Loop Stepper Motors into a linear motion, you can use the following thumb base:

Given:

Spindle pitch r

Linear travel speed v_min is required

The driving force required for the gear in an axial direction F_min

search:

The minimum speed required for a Closed Loop Stepper Motorsn_min = v_min / p

Minimum torque required for Closed Loop Stepper Motors M_min = (F_min * p) / (2 * pi)

For example, in order to determine the driving force needed for a CNC milling table, the maximum cutting force that occurs for the required driving force in the axial direction can be used. Because the bottom line should have at least the power to transfer the power of the chips.

Calculate the chip forces for the most difficult cutting and use it in the above formula to determine the torque required for a stepper motor. In this article, you will learn more about calculating cutting forces when grinding.

Of course, you also must include protection. Otherwise, you will not be able to grind properly as drive friction increases. I would cautiously suggest a safety factor of 2 at this point so that the specified Closed Loop Stepper Motors torque is two times higher than the calculated torque. Additional torque also helps to accelerate the linear table if high dynamics are required.

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Do I need a VPN for my Android smartphone?

Umar Nisar

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Do I need a VPN for my Android smartphone?

Most people use a virtual private network (VPN) to safely browse the internet while they are away from home. This allows you to bypass restrictions on region-specific content and websites. So, this is maybe something you also want to use on your smartphone.

There are several scenarios in which you could use a VPN, for example if you are connecting to a public (and unsecured) Wi-Fi network.

Of course, it sometimes happens that you do not have a laptop available, but you do carry a smartphone with you. In these cases, you can consider downloading an android VPN app for your mobile device.

Is it wise to download a VPN app?

The main reason for installing a VPN app on your Android device is internet security. If you use a Wi-Fi connection a lot, for example in the catering industry or on a holiday abroad, it is certainly advisable to use a VPN.

Public connections

Do you often connect to public Wi-Fi networks via your Android phone? It is wise to think about securing your data. There is so much information stored on your phone, from online account login credentials to personal financial information. Therefore, some extra security is always a good move.

A VPN ensures that your data is encrypted and nearly impossible for third parties to access, even if you are logged into a public network with questionable security features. This means, you couldn’t get closer to real online anonymity.

Which VPN app is a good option for my Android device?

There are a lot of VPN providers. Of course, you want a service where the developers have thought carefully about how smoothly the VPN service should work on your Android device.

NordVPN is extremely popular and has more than ten million downloads worldwide. The app contains almost all the features you would expect from a good VPN and is also very focused on security and privacy.

The ‘Double VPN’ technology offers an extra layer of security by sending your connection over two separate VPN servers. NordVPN also offers a zero logs policy. This means that your data will not be stored by the company.

Not unimportantly, the NordVPN app has an automatic kill switch. This means that access to the web with your device is immediately lost if the VPN connection is accidentally lost.

NordVPN is very user-friendly. If you connect to a Wi-Fi network, a connection is automatically made with the app. NordVPN also has good performance when it comes to speed and it offers a 24/7 live chat option.

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Use Google Docs to Edit and Share Documents in the Cloud

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Use Google Docs to Edit and Share Documents in the Cloud

What is Google Docs?

Google Docs is Google’s version of a word processing system that is completely cloud-based. Google offers this product for free to anyone with one of the slowest Internet connections. It works great with Google’s hard drive too, as you can imagine. Google Docs also has very strong sharing and workgroup features that make it easy to team up with others. Even if those people are on the other side of the world.

Google Docs is a simple word processor and spreadsheet that allows the creation and editing of documents. These documents are stored in the cloud (ie online) and can only be accessed with an Internet connection.

In Google Docs, documents can be shared with other users and allows editing by those who share such access to the document. It is only necessary to have a gmail account to use this service.

Google Docs Features:

It’s free

One of the advantages of Google Docs is that it does not have any type of cost, and at the moment it does not include advertising.

No installation

Google Docs does not require the installation of any specific program. It is only necessary to subscribe to the service and have an internet connection.

Information availability

With Google Docs, all documents are stored on Google’s servers. This allows users not to have to save documents on storage devices (USB, hard drives, CDs, pen drives, etc.)

Less use of computer resources

By not storing the information within the memory of the computer, it saves a lot of space.

Frequent updates

Google Docs is constantly updated to improve functionality and correct stability errors. These updates do not depend on the user, nor should the user perform any type of action, as they are automatic.

Compatibility

Documents saved in Google Docs can be easily and easily exported and downloaded.

Group work

Since Google Docs allows one or more users to work on the same document, it facilitates teamwork at the student or professional level.

File organization

Google Docs has a methodology for organizing documents and dividing them into folders for easy use. Some of its functions include the ability to create folders, share documents (or hide them), highlight certain documents, etc.

File import

This word processor in the cloud allows you to import text files from any computer as long as it is prepared by Microsoft Office or Open Office.

Change notifications

In Google Docs you can create alerts through which if one of the users makes a change to a document, then the rest are notified. You can also create notification rules.

HOW TO ADD AN IMAGE BEHIND YOUR TEXT IN GOOGLE DOCS

One of those features that people wish had is the ability to add google docs background image.

USING GOOGLE DOCS

The first method of making the list is to use Microsoft Word to get the job done and then import the file into Google Docs. Of course, this requires you to have access to Word in some form, be it a copy of Word or an Office Online subscription. If you don’t have one of those at your disposal, then you won’t be able to use this method.

1. You want to start making the document in Google Docs with all the text and whatever else you want the final document to have

2. After having made your document in Docs, you need to make a new Word document in your version of the program

3. Next, copy the content of your Google Docs document and paste it into the new Word document

4. You can also save the Google Docs file as a .docx file, which may actually work better, just by clicking

5. If you choose this way, you will open the .docx file in Word

6. Select Insert, then Image from the toolbar at the top of the page

7. Now, choose your image in the file dialog and then choose Insert

8. You should see the image you chose in the Word document now

9. The next step is to right click on the image and choose Wrap Text and then In Front of Text

10. You have to do it because Google Docs does not support the text option behind the page

11. Now, save the Word file and close the program

12. You have to go back to Google Docs and click on File, and Open

13. Next, you will choose the Upload option and choose the file that you just saved in Word

14. You will then select Image Options to open the image options menu

15. In this window you need to move the Transparency slider to make the image more transparent so that you can see the text under it, and there you have it

BUT WHAT ARE THE ADVANTAGES AND DISADVANTAGES OF USING GOOGLE DOCS?

ADVANTAGE

You can create documents online and share it with your friends.

You can select who to share your documents with and restrict access by giving them some permissions that the application allows you to do, such as: only view, only comment or only edit documents in Google.

You will not worry about saving the document every moment, since in Google Docs the documents are saved automatically, you only need to assign a name and that’s it.

It has a wide variety of add-ons to install for free, which can facilitate the development of some tasks that you want to insert into your document. For example, you can install a plugin that allows you to insert equations and diagrams making work much easier, as well as these there are many other plugins that will help you save time.

DISADVANTAGES

To make use of Google Docs or Google documents as it is called in Spanish, you must have a Gmail account that allows you to access the Google Drive service within your Google account.

Google Docs tools are basic if we compare it with the Microsoft Word program, which are more complete.

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Best laptops to choose for Professional Bloggers

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Best laptops to choose for Professional Bloggers

Professional Bloggers

Introduction 

Blogging or content creation has become very popular these days. If you are into blogging or creating content, then this article might be useful for you. As a blogger, a lot of research is required on the topic, Photoshop is done for editing photos and videos, and all this requires a machine that can handle these tasks quickly and with efficiency. There are many gadgets that a blogger needs, one of which is a laptop, which can make these things pretty simple and easy for you. A good laptop with great features can make your content super attractive and creative. Here we will be listing some best laptops which can come in handy and be useful for professional bloggers.

What to look for while buying a laptop from a blogger’s point of view?

The list has been compiled by taking into consideration such factors as-

  1. Battery life 
  2. Screen resolution
  3. Comfortable keyboard 
  4. Compact and easy to handle laptop design 
  5. Processor /RAM
  6. Connectivity 

Best laptops for professional bloggers

Let’s look at some of the best laptops available in the market which can be used by professional bloggers.

  1. MacBook Pro – Apple’s MacBook Pro with a 15-inch display screen is suitable for working for long hours. It has slim edges and a lightweight aluminum chassis. It has four USB ports and a headphone jack. It also has the feature of a Touch Bar, which replaces the standard keys. It has also led options in it and can be changed depending on the person’s app. The display has vibrant colors and high accuracy. The music system of the laptop is also excellent. It has deep bass and crunchy trebles. The keyboard is very comfortable and pressure-sensitive. It has no actual buttons like the standard keyboard. It has an i7 core CPU and is excellent with multitasking. It has a RAM of 16 GB and copying files is relatively very fast. It also has the features of graphic and light gaming. The battery backup is also good. It can last up to 10 hours with continuous Wifi connectivity. It is ideal for traveling because of its compact size—all in all; it makes for one of the best buys for professional blogging.
  1. Dell XPS-15 – the laptop is sturdy and has a silver aluminum lid, a backlit keyboard, and a battery status indicator. It has USB 3.0 ports, a Thunderbolt 3 port, a headphone/mic jack, an HDMI output, a Kensington lock slot, and an SD card reader. It has a biometric reader at the bottom of the keyboard. The display is 15.6 inches with vibrant colors and accuracy. The keyboard is spacious, and it supports the precision gestures of Windows 10. The laptop offers clear and loud audio. It has 16 GB RAM and Intel Core i7-7700HQ CPU. The battery backup lasts for about 8 hours and is ideal for light gaming. It also has features like Support Assist and Premier Color. 
  1. MacBook Air 2017 – the laptop has a 13-inch display with a stunning silver design and weighs 2.96 pounds. It has features like a headphone jack, two USB 3.0 ports, an SDXC card slot, two mics, a Thunderbolt 2 port, 2 USB-A, and a MagSafe two power port. It has a resolution of 1440×900 with vivid and bright colors. It has a high speed of 1.8 GHz and 8 GB RAM. Wireless connections are also available through 802.11ac Wi-Fi and Bluetooth 4.0. It has a 720p webcam and is ideal for content writers.
  1. Lenovo ThinkPad T460 – the laptop looks classy with its Matt black chassis and has a stunning 14-inch display that weighs 3.8 pounds. It has excellent features like three USB 3.0 ports, a headphone jack, an HDMI output, an Ethernet jack, an SD card reader, a SmartCard reader, a SIM card slot, a mini DisplayPort, and a Kensington lock slot. The keyboard is split resistant and has a key with lots of travel. It is excellent for audio and video conferencing. It also has the features of Dolby Audio software that allows you to control the equalizer. It has a removable high capacity battery. This is an ideal buy for professional bloggers.
  1. HP Notebook 15 – this is a budget-friendly option with some stunning features. It has a sparkling diamond textured pattern and is available in many colors like silver, red, blue, white, and purple. It has a 1080p resolution display and has 2 USB 2.0 ports, a USB 3.0 port, an Ethernet jack, and an SD card slot. It comes with an Intel Core i5-6200U CPU, 1TB hard drive, and 8GB RAM. It has a battery life of about 5 hours and has 25GB of Dropbox storage for 12 months. It has Chiclet-style keys with 1.1 mm of travel. 

A good laptop with great features can make your content super attractive and creative like you get on a site like doe. Here we will be listing some best laptops which can come in handy and be useful for professional bloggers.

Conclusion 

The laptops listed above are some of the best buys for professional blogging. Not only do they have good battery life and storage but also a good screen resolution and hence, even if you are a travel blogger who realized that you would want to write while you are right in the middle of a forest- it will serve the purpose!

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