A kind of motor that moves in steps.

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26 views

I have buyed a 750 rpm torque 3kg.cm motor but i am not able to calculate the amount of torque and rpm avilable on 7cm tyre

This is the motor i buyed http://www.snapdeal.com/product/core-dc-helical-geared-motor/719331155 I am working on project for science fair but it has become too much confusion that how much weight ...
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2answers
45 views

Stepmotor closed loop - matching encoder and microstep resolution

I am trying to get a high accuracy and not so extremely high resolution motor to work. It's a step motor with 200 steps/rev and the motor driver can compute up to 400x microstepping. We have an high ...
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1answer
29 views

Stepper Motors : KG.CM Torque : Does it maintain the torque when connected to a rod?

I am currently building a machine for a school project.I have a pivot point and wish to use a stepper motor to turn the base at an angle. The base is carrying a load of approximately 10kg. I was ...
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1answer
41 views

Drive stepper motor with audio amplifier?

I am as a beginner in electronics contemplating how to build a motor driver for a stepper motor. From what I have read, the more sophisticated drivers will have a feature known as micro stepping ...
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0answers
10 views

Accel Stepper help, stepper not going backwards [migrated]

So my question is that I am trying to use a arduino library called Accel Stepper to control a stepper motor, I made code that makes the stepper motor move one rev clockwise and then one rev counter ...
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0answers
43 views

Stepper Motor H Bridge High Side N-Mos Burn Problem

Last year, i designed a stepper motor driver card with DRV8711 and CSD17506. I am driving my stepper motor with Vm=24 Volts and motor current Im= 2.14A. Texas Instruments gate driver drv8711 is ...
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24 views

worm gear & slew drive slection

I am trying to build single axis solar tracker using worm gear, I need guide line for calculation of worm gear & stepper motor .he are some relation i taken, But i wanted whether its correct & ...
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0answers
34 views

Oscilloscope Tektronic MDO 3034 Digital and Analog channel synchronization issue

My oscilloscope becomes really slow whenever I measure (direction and steps) digital signals from two stepper motors. This slowliness happens after I "zoom out" on my oscilloscope (e.g., make the ...
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1answer
36 views

Purpose of Charge Pump in Motor Driver IC

I have seen and understood the purpose of charge pumps. Used for pumping voltage levels in case of RS232 transceiver IC's. But most of the motor driver IC's also includes a internal charge pump ...
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1answer
62 views

What stepper motor is in a CDROM drive?

There are countless projects online that start with "harvest the stepper motor out of an old CDROM drive." Many of these projects look super fun, but I don't have a pile of old CDROM drives around ...
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2answers
37 views

Some basic questions concerning Stepper motor with geared head/geared box

Some basic questions concerning Stepper motor with geared head/geared box. What is the meaning the reduction 1:56 (1/56) or 1:100 (1/100) or 18/1? According to some charts: How can i know ...
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0answers
32 views

Building a micro cnc machine

I am building a micro cnc machine, probably from 2 cd roms as the x and y axis and a floppy drive as the z, or 1 hard drive as the x, 1 cd drive as the y and 1 floppy as the z, but I am not sure how I ...
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1answer
39 views

How can I tell the full spec of my step motor just by looking ati it?

I have a retro CNC machine (EMCO F1P) in my garage that I am currently tinkering with. I would like to replace the old motor control but use the existing step motors. Unfortunately the documentation ...
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1answer
26 views

Zener diode in stepper motor driver with TPL7407L

In TPL7407L's datasheet, there is a stepper motor driver schematic as below There is a zener diode denoted as "optional". However the 'COM' pin is connected to 'VSUP' directly. The 'optional' means ...
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1answer
44 views

motor movement as in and output

I am looking for a way to counteract an active servo or stepper motor. In more detail: I want to translate the movement of a controllable motor to a linear rod movement. This rod goes up and down ...
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0answers
48 views

Use an 800 ma stepper motor with a 500 ma uln2803

Is it possible for me to use this stepper with this IC? I am using the second schematic on this page. I do not want to use the transistors in series if I don't have to. Thanks.
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1answer
60 views

Stepper motor control using siemens s71200 plc [closed]

I am doing a project in which i want to run a conveyor belt using a stepper motor, through a siemens s71200 plc.Can anyone help me in doing so.
3
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1answer
65 views

What are stepper motors commonly used in? [closed]

I like finding motors and parts from recycled electronics and I want to find some stepper motors. What are these most often used in?
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2answers
134 views

How to connect a stepper motor with exactly 4 wires to Arduino?

simulate this circuit – Schematic created using CircuitLab Today I bought a stepper motor to play with, after 12 hours of struggling with it, I haven't been able to figure out how to ...
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1answer
60 views

Prevent stepper-motor heating in constant torque situation

I am using multiple stepper motors in an application where each motor is always resisting some torque, i.e. if I turn off the power to a motor, the applied torque will cause it to rotate and lose its ...
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1answer
76 views

Should I build my own parts for making PCB with eagle or is there a database somewhere?

I'm trying to build a custom PCB for a project I'm working on. I'm building a small robot that navigates using a color sensor and moves using two motors. For logic I'm using an Arduino Nano. My ...
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0answers
18 views

microcontrolled 2 axis gimbal

I need to control a 1m2 panel with an Arduino such that the axis normal to it can be at a range +/- 45 degrees in both x and y directions. I am trying to do a search and found a few things - stepper ...
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0answers
103 views

Stepper motor turning only in one direction, stalling in opposite direction

Components in use for project: Arduino Mega --> StepStick --> 28BYJ-48 5V Stepper The stepper is 5V but I am using it at 8V since the A4988 driver requires a minimum motor voltage of 8V. It's a ...
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47 views

Brushless DC motor or stepper motor for specific application

The specific application is for moving (or traversing) a carriage up and down a lead screw. The lead screw is rotated by a motor. Here is a rough idea: - Since 1996 a stepper motor has been used ...
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51 views

What is the name/type of the connector on the 28byj-48 stepper motors?

These are very useful inexpensive motors however I haven't been able to identify what type of plug is on them to make custom driver boards. Here is a picture: Thanks Andy
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1answer
22 views

How do I design the maximum current curve for a stepper motor?

I want to drive a stepper motor (0.89V/5A) with the L6470H-controller. There I have to set different values for controlling the maximum voltage each for holding, running, speeding up and slowing down ...
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20 views

How to detect thermal shutdown of a stepper-motor controller IC?

I am using an A4983 (www.allegromicro.com/~/Media/Files/Datasheets/A4983-Datasheet.ashx) for controlling a stepper motor. Unfortunately this controller does not have an output for signalising me that ...
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1answer
178 views

Switching power to Stepper Motor Drive using relay and arduino

1.This project involves use of stepper motor once in 5 mins to perform precise movement.I m driving the Stepper using L298N-L297 Stepper Motor Driver Board and Arduino UNO. Since the Stepper Motor ...
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2answers
97 views

test steper motor without microcontroller

i'm very new for microcontrollers as well as step motors .i have a idea to make a cnc based pen .so i get a step motor with uln2003 stepper motor driver.but i have ...
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1answer
46 views

Problems understanding stepper motor data

I have a stepper motor (M061-CE08) here, and I am a bit disturbed: The manual tells me that it has eight connections, and winding specifications for bipolar parallel connection are 0.89V and 5.4 ...
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2answers
77 views

Correct circuit element alternative to transistors

First please see my proteus file to understand what am I trying to do. http://www.docdroid.net/ru27/yenitasarim.pdf.html As you see, there is 5 button groups vertical and 5 button groups horizontal. ...
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2answers
98 views

Does frequency equal the number of steps a stepper motor will do?

http://www.thorlabs.us/thorcat/ETN/ZFS13B-Manual.pdf I am supplying a driving PWM signal to this stepper motor. However, I want to specify exactly how many steps to take with this motor. Does the ...
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1answer
37 views

Can a linear motor output multiple and precise linear forces?

I am trying to identify a motor-driven system that can produce a constant linear force in one direction. The context for this is an injection device that compresses the plunger of a syringe ...
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2answers
112 views

How to reduce the amplitude of my PWM signal?

I'm using a PWM control signal that ranges from 0-24V to drive a stepper motor. However, the datasheet in the driver says it should range 0-5V. How can I bring down the amplitude of my PWM control ...
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1answer
88 views

Power Supply For CNC Setup

I can't quite wrap my head around the power requirements for a CNC setup i'm building. I'm using 3 x Easydriver 4.4 for driving the Sparkfun Stepper Motors. I previously used a 22 V 800ma Power ...
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2answers
67 views

Using transistors to minimize the number of Arduino pins used for this stepper motor driver

Alright, I know very little about what I am currently asking about, but here is the gist of it: I want to build a cnc machine out of some old floppy drives. I purchased a couple L293D dual H-bridge ...
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1answer
303 views

Import alternative stepper motor in my fritzing sketch

I have a question, which is on the usage of Fritzing. I'm trying to sketch up a robot I have made. I want make a proper sketch, which I can send to a manufacture. I found a stepper motor used in this ...
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1answer
389 views

How to determine the rotation direction, rotation angle and rotation speed of a stepper motor and a servo motor

During one of my lab session I faced this problem and couldn't find any good answer. As far as I know for a stepper, Reversing the direction of current will change the direction of rotation. ...
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43 views

Gecko GM215 stepper motor drivers LED output

I just purchased a new GM215 stepper motor driver from Gecko. I am using it to drive my NEMA23 3A motor with 36V. The driver has a 80V limit. My device worked the first day, very nicely, but the ...
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1answer
56 views

Can I use 7.2v lipoly for 12v stepper motors?

I planned to buy 2 stepper motors for small toy car. What I can find from aliexpress are mostly 12v products. I have lipo batteries already and they are 7.2v and 5400mA. Can I use this for 12v ...
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62 views

Current spikes when driving stepper motors

I am trying to figure out appropriate values for a timeout mechanism provided by the DRV8811 stepper motor driver. While doing my research I came across a website that conveniently has a write-up ...
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2answers
295 views

Make hard drive stepper motor run 7200 rpm

I have an old hard drive (7200 rpm) motor like this: I'm trying to make it run as fast as possible and I start with this code (arduino uno): ...
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1answer
66 views

Stepper motor current specifications - 12V/350mA, but draws more at lower speeds?

I have on hand a simple 12V/350mA stepper motor the datasheet is lacking, so I can only assume 12V is the maximum sustained voltage and 350mA is again, the maximum associated current. The datasheet ...
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2answers
45 views

CNC stepper motor driving CC vs CV

I am trying to design a small CNC maching for milling PCBs. I am using unipolar stepper motors driven by a microcontroller, but I am unsure of what tehnique to use to drive them. I once read that ...
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1answer
39 views

damage stepper motor energized

General stepper motor question: Is it safe to manually turn a stepper motor that is energized (holding at a fixed position)? Or could it damage the motor in some way? I'm working on an old stage ...
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3answers
107 views

stepper motor driver constant current under load, motor driver powering off losing brake effect

I am building a CNC-like machine using a microcontroller and 'FMD2740A Microstep Driver' modules to drive the stepper motors. My problem is the vertical axis where, despite a counterweight, there is ...
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96 views

PWM Chopping current and Decay Modes of motor drivers

This is my first experience with driving stepper motors, so please bear with me. I was looking again through the datasheet of the stepper driver DRV8811 and came across calculations that needed to be ...
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1answer
54 views

What is the “Home” feature of the Stepper Motor Driver IC (DRV8811)?

While doing research on efficient methods for driving stepper motors I came across the Texas Instrument IC DRV8811. This particular device has a Home feature that is explained very little. The ...
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1answer
65 views

Stepper Motor current rating and microstepping

I am working with stepper for first time and want some suggestions. Motor runs smooth but the problem is it gets hot after a few seconds. reason may be that i am giving it a bit higher than the rated ...
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1answer
67 views

Dead-reckoning vs feedback for motor position control of turntable

I am constructing a small turntable that holds a plastic cup and should be controlled to stop at one of eight positions. (Where it will receive a shot of liquid; think "Auto-cocktails"). I'm wondering ...