Month: November 2018 (Page 1 of 3)

nema 34 stepper motor: how to improve its performance

nema 34 stepper motor is improved by uStepper to use in items such as inkjet printers – for moving the ink cartridge back and forth over the paper. nema 34 stepper motors can be a cheaper alternative to servo motors, but the drawback of nema 34 stepper motors is not being able to tell if they are moving to the position they were told to move to.
If a person tries to block the path of the ink-jet head, while the printer is printing, it will not recover from this. The same happens in most of the applications using nema 34 stepper motor. uStepper removes this drawback by continuously monitoring where it is, and where it should be. uStepper can compensate if anything goes wrong. It operates with feedback. uStepper has the ability to drive nema 34 stepper motor, monitor position and it has an onboard programmable microcontroller with a wide range of available inputs and outputs.
The new line will offer a uStepper board with improved performance on all parameters, a cheaper lite version and potentially a large and powerful version.
All this is packed into a small printed circuit board that fits on the back of nema 34 stepper motor.

nema 17: how to make a Delta Robot with it

nema 17 is a component of Delta Robot. Delta robots are lightweight and require low maintenance, so they are very suitable for simple assembly tasks. It can realize simple assembly function, task selection and placement, and its application in detection technology.
The device is made entirely of igus components. The device is made of aluminium and plastic materials.
This includes a maintenance-free belt drive non-lubricated connecting rod, encoder, nema 17 and optional drive controller. nema 17 and coders guarantee fast processing up to (+0.5 mm). It can carry up to 5 kilograms at low speeds and a maximum picking rate of 60 per minute. The installation space diameter of the whole system can reach 420 mm.
Under the guidance of igus, units can be assembled on site in about 30 minutes. It can also be pre-assembled within 24 hours as an off-the-shelf installation system within the transport framework or as a toolkit with quick and simple assembly instructions.Customers can also choose to use their own software and control system, or igus provides an intuitive dryve D1 control system.
In addition to Delta robots, Igus also provides low-cost robotic systems with Robolink products. The Robolink product line provides users with the opportunity to assemble up to five axes of robotic arms separately from a modular system. It consists of plastic gears,nema 17 and interface connectors.

nema 23 stepper motor: how does it work in 3D printers

nema 23 stepper motor is an important part of a 3D printer. Normally, your regular desktop 3D printer is a bunch of belts, screws and pulleys. DeepSOIC completely eliminated them. How did he do it? nema 23 stepper motor linear actuator is used.
Search Google for “linear stepper motors” and you’ll find a bunch of linear motors with screws in the middle. This is not a linear stepper motor. This is a stepper motor with a lead screw in the middle. DeepSOIC thinks of engines that are more like a mixture of rack and pinion gears and maglev trains.
The “straight line” part of the nema 23 stepper motor is a magnet track perpendicular to the motor axis, which has alternating polarity. It’s basically an unrolled nema 23 stepper motor that can run 3D printers faster without too much mud and clearance.
At present DeepSOIC is in the experimental stage, and he plans to print the axis of his linear stepper with a ferromagnetic wire. It doesn’t work. The permeability of the steel found in the motor is about 4000, while the permeability of his brand ferromagnetic wire is about 2. It was a great success in describing the performance of magnetic 3D printing filaments even though the idea of printing nema 23 stepper motor parts was completely unsuccessful.

nema 17 stepper motor: to build a 3D printed wind turbine

nema 17 stepper motor is used in a 3D printed wind turbine. Michael Curry, Kansas City’s master of 3D printing, built and printed a wind turbine in 3-D to take advantage of Missouri’s endless wind power, which may be exactly what we need to deal with complaints from other important people.
The alternator he built uses nine rings of 22 gauge copper wire wound around a 3-D printed magnetic core and stored in a supporting disk. Each coil is, of course, connected in three creative stages of an alternating set. In theory, when the wind rotates the turbine blade, the magnet rotates above the coil. Alternating magnets excite electrons through alternating positive and negative magnetic fields on coils.
The movement of electrons is rectified by two bridge rectifiers into a DC power supply, “he said. Although it looks good and should be done well in theory, the results are quite different. Although the wind is very strong, the alternator can only produce 196.9 microvolts. “Yes, my alternator doesn’t work very well,” he concluded.
That’s why it’s always good to have an alternative at hand. When you’ve built some 3D printers, you can easily find one in the nema 17 stepper motor.
“I heard that stepper motors can make great small generators,” Curie said. We did a quick experiment. An Adafruit nema 17 stepper motor, 2 bridge rectifier, multimeter, capacitor, bulb, and electric drill. The principle is that we rotate nema 17 stepper motor with an electric drill, which generates alternating voltage in two coils.

nema 23: how to make a 3D printer with it

nema 23 is used in a H Series hybrid 3D printer CNC machine. The design of the H series reflects the need for mechanical systems to withstand higher loads than typical printers.
For the H series adder, the saddle/y axis/bed assembly has the lowest mass.This corresponds to the mass of a typical double extrusion gantry assembly. The X-axis drives the whole assembly, using a higher torque nema 23 and a 9mm GT2 belt drive. The size of wire also reflects the stress of each axis (Y axis is 8mm, X axis is 16mm).
The turret/arm assembly moves only in the Z direction, and its high quality is offset by the balanced weight in the column.The z-axis is driven on the 16mm axis, using nema 23 and 5 mm pitch pre-tightening ball screw.With this setup, we can perform fast Z motion and very small deflection.
All of these indicate that the H-series augmenter meets the standard of the best printer of its kind. If the question is: How good is the H-series mixer compared with a typical FDM printer? This is not a comparison.This hybrid machine tool is strengthened to handle machine acceleration and tool load.The X-axis and Z-axis are supported by a line axis, and the y-axis is increased to 16 mm in diameter. The X and Y axes are driven by pre-installed high-lead ball screw and nema 23.

dc brushless motor: advantages and applications

dc brushless motor consists of a permanent magnet rotor and a multi-phase armature winding. It differs from a conventional DC motor in that it does not include a brush, the commutation is done by electricity, and an electronic driver is used to power the stator windings.
Basically, dc brushless motors are constructed in two ways – one to place the rotor outside the core and the other to place the windings outside the core. In the former arrangement, the rotor magnet acts as an insulator, reducing the heat dissipation rate of the motor and operating at low currents.In the latter arrangement, the motor dissipates more heat, thereby increasing its torque.
dc brushless motor is driven by an electronic driver that switches the supply voltage between the stator windings as the rotor rotates. The rotor position is monitored by a transducer (optical or magnetic) that provides information to the electronic controller and determines the stator windings that need to be energized based on the position.
dc brushless motor uses a fixed permanent magnet and rotates the armature to eliminate the problem of connecting current to the moving armature.
The cost of the dc brushless motor has declined since its presentation, because of progressions in materials and design. This decrease in cost, coupled with the numerous focal points it has over the Brush DC Motor, makes the dc brushless motor a popular component in numerous distinctive applications.

stepper motor driver: maximizes open-source 3D Printer performance

stepper motor driver board EVALSP820-XS of Italian Semiconductor brings industrial control expertise to RepRap Arduino Mega Pololu Shield (ramp) open source 3D printer platform, enabling 3D printer manufacturers to fully utilize their machine potential for faster printing speed and smoother surface treatment.
The ramp module platform makes 3D printing of Fused Wire Manufacturing (FFF) convenient for manufacturers, small businesses and household users for rapid prototyping, manufacturing replacement parts or education. Arduino Mega 2560, or Arduino DUE, the substrate provides basic control, providing users with plug-ins of their own choice of stepper motor driver, and any other desired functionality, using ultra-large compatible extended shields. Plug and Play Extension Board, EVALSP820-XS can promote ramp printers at a higher speed and greatly increase throughput to ensure excellent smoothness and micro-step resolution from step by step 1/256-step/micro-step.
STSPIN820 stepper motor driver board is the key to realize the leap of 3D printing performance. STSPIN820 embedded high-speed motor control input circuit and algorithm developed for industrial applications. It also integrates a powerful 1.5A RMS output stage in an ultra-compact 4mm x4mm QFN package. Built-in low-voltage blocking, over-current/short-circuit protection, thermal shutdown and other comprehensive protection to ensure industrial strength, the board can be used in other projects to speed up the development of stable and high-speed step control equipment, such as monitoring camera platform, textile or sewing machine, office and home automation, sales terminal and robots. The working voltage of STSPIN820 ranges from 7V to 45V. The stepper motor driver board is economical and easy to integrate.

bldc motor: how to maximize the effectiveness of its commutation

bldc motor needs external controllers to control commutation activities.The following article will examine many ways to achieve this.
Simply put, commutation is the process of switching currents between the phases of the motor to generate motion.For brush motors, physical brushes are used for this purpose (twice rotating each time).However, bldc motor does not have such a mechanism, so an alternative mechanism is needed.The structure of bldc motor means that they can (at least theoretically) have any number of pole pairs for commutation.
Although bldc motor and wire drawing motor have the same basic working principle, the additional external control circuit must be taken into account. To some extent, the more complex control and feedback circuits associated with BLDC impede their application in some applications.
However, stricter international environmental standards are now leading to greater proliferation.
In recent years, engineering innovations related to motor drive technology and better permanent magnets have further supported the transition to bldc motors. With more and more opportunities facing bldc motors, more and more engineers have to consider how to apply this technology to their system design. Because the rotor of BLDC motor is affected by the rotating stator pole, it is necessary to know the position of the stator pole at any given time.This is the function of the bldc motor controller.

nema 34 stepper motor: suitable for conveyor application

nema 34 stepper motor is an important part of industrial conveyor motion control system. Usually, conveyor applications run at a constant or variable speed, requiring only speed control from the main drive motor. Positioning conveyors, such as conveyors for automatic scales, require more precise control. In these applications, the main drive must start and stop positioning conveyor, with moderate to high accuracy.
DC and AC motors are usually used for speed control of fixed or constant speed conveyors, while stepping motors and servo motors provide more accurate positioning capabilities for conveyors requiring more precise motion.
nema 34 stepper motor is generally controlled by open-loop control, which has the advantages of simple structure, good positioning and economy. But if a feedback mechanism, such as an integrated high-resolution encoder, is configured, the closed-loop nema 34 stepper motor can provide speed and position information to the driver/controller.
Stepper motor suppliers can provide expertise and tools to help you choose the design that suits your application.
The high torque and fast dynamic response of the closed-loop system meet the requirements of high performance positioning conveyor. Speed, torque, accuracy and size are important parameters to be considered when selecting suitable nema 34 stepper motor for conveyor application.

nema 17: as a part of a CNC machine

nema 17 is important for a CNC project. As we know, now 3D printers are everywhere, electronic products are cheap and open source software is extremely powerful, therefore, almost anyone can produce a CNC machine tool.
This is what Nikodem did, turning the Dremel tool into an extremely powerful CNC machine tool that can cut MDF and acrylic acid, and carve aluminium. The built electronic device is just an Arduino Uno, a nema 17 drive rack running GRBL, a Dremel relay, a few more stepper motor drivers, and a large’ol 30A power supply. This machine uses nema 17, two on the Y axis, one on the X axis and one on the Z axis.It is extruded from aluminium profiles, and the carriage is mounted on some beautiful straight poles.
As for the working principle of this CNC machine tool, it is quite good. Gcode was used to cut a circle with a diameter of 80 mm from MDF. The machine successfully cut a circle with a diameter of 80.02 mm. That’s good, and the mistake may be in cheap calipers, not in the finished product itself. Overall, it’s a great building with nema 17.

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