A kind of motor that moves in steps.
2
votes
1answer
72 views
What is the easiest way to make a stepper motor go?
What is the easiest/ cheapest way to make that motor move like a dc hobby motor would when connected to a battery? Speed doesn't matter. I just want it to infinitely rotate.
2
votes
0answers
33 views
Pump control - Uni or Bi polar stepper motor
I am working on a robot that includes several annular gear pumps. We are using the MZR 2521,
manual: (please see section 5.5)
http://www.micropump.com/support_documents/manual_mzr-xx21.pdf
product ...
2
votes
1answer
43 views
What type of stepper motor should I use in my project and how do I control them?
I'm building a video camera pan and tilt head. Here's what I'm getting at:
I'll need one motor to control the horizontal rotation of the camera, and one for the vertical. The horizontal motor ...
2
votes
1answer
75 views
Control old printer motor with position ring
I purchased two old printers at a garage sale today in hopes of dismantling them and playing around with some stepper motors. After tearing both of them apart I discovered that there are no stepper ...
2
votes
3answers
77 views
Slowly turn a planisphere at the sidereal rate
My problem is to rotate a planisphere (a star chart) at the sidereal rate.
I will set the planisphere to its initial position manually, then turn on some device which rotates the planisphere on its ...
1
vote
1answer
43 views
PWM npn sinking signal
I have a stepper motor(with STR2 Step Motor Drive) which needs npn sinking signal to operate. dsPIC33EP512mu810 is capable of generating high resolution pwm. However, the PWM signal can only turn on a ...
0
votes
0answers
64 views
A step motor fsm design
A step motor (or stepper motor) is a brushless DC (direct current) electric motor that divides a full rotation into a number of equal steps.The step motor has permenant magnet rotor and electromagnets ...
4
votes
4answers
154 views
devices for measuring tension or detecting “slackness” in fishing wire
How might I go about measuring the tension in a line of fishing wire? I'm mostly interested in determining when the line is in tension vs when it's slack.
The application is a boat-mounted ...
9
votes
3answers
200 views
Stepper Motor high frequency sound
I am using a stepper motor for a gantry setup. When I run the motor above certain speeds, in this case 4rev/sec, it produces a high frequency sort of whinny sound. It is a 4.5A motor and I am running ...
1
vote
1answer
162 views
L297 stepper motor controller clock signal question
How i can generate clock signal to L297 stepper motor controller with a PIC16f877 microcontroller?:
0
votes
1answer
85 views
How to test if a bipolar stepper motor is working?
I have this stepper motor:
I write the code below for a PIC16F877 microcontroller for a continuous movement in stepper motor:
...
2
votes
2answers
313 views
Arduino Motor Shield for 12v stepper motor
new to the forums here!
I'm making a basic rig for timelapse photography using arduino.
It is a panning system for a DSLR camera, so I went with the motor shield from Arduino with the L298 chip and ...
2
votes
3answers
146 views
Stepper motors - stride angle?
I am interested in using one of these cheap stepper motors for one of my projects, but need a step angle of ~2°. I came across the 28BYJ-48 and noticed that it has a "stride angle" of 5.625°/64. What ...
0
votes
3answers
125 views
Problem with stepper motor not landing on same spot
I had a quick question regarding a stepper motor that I'm working with. I am running the 5 pin, 5V motor via an Arduino board and using the sketches provided. I am trying to get the motor to rotate in ...
2
votes
1answer
88 views
Input rated current for easydriver 4.4
I am using easydriver 4.4 to control stepper motor. Easy driver takes input voltage from 7 to 30V. I fed 20V 3.0A to easydriver, but i got it burnt (easydriver)*. Is 3.0A too much for easydriver ? ...
3
votes
1answer
66 views
What is the fixed-on interval with regards to stepper motors?
I am using a stepper drive board to control a stepper motor. It has settings for for fixed-on time when using the open-loop PWM control method.
According to the API description:
...
0
votes
1answer
231 views
What kind of power supply can power this stepper motor connected to an Arduino?
Stepper Bipolar circut: http://arduino.cc/en/Reference/StepperBipolarCircuit
I have this bipolar stepper motor "Stepper motor - 200 steps/rev, 12V 350mA - " which i am connecting to an Arduino. The ...
1
vote
1answer
194 views
Have I missed something when connecting this stepper motor?
I have an Arduino which I am using to control this stepper motor using a breadboard with this layout. I have the Arduino connected to my Mac and it successfully runs, but the "force" of the motor ...
2
votes
2answers
164 views
Computer controlled electronics
I have a reasonable amount of experience writing drivers for pre-existing hardware and I am looking to develop my skills and learn some more.
Can anyone recommend good angle, resource or starting ...
1
vote
1answer
95 views
Can I find out the change in angle between two wooden sticks connected to each other with a stepper motor?
I have two wooden sticks/rulers (Length: 1 ft; Width: 1 inch; Thickness: 8 mm;)
I have fixed the stepper motor to the end of ruler#1
I have attached one end of ruler#2 to the shaft of the stepper ...
3
votes
3answers
557 views
Stepper motor troubleshooting with Pololu DRV8825 Driver
I salvaged a bipolar stepper motor (QH4-4242), and a power supply from an old printer that I'd like to tinker with before scaling up to larger motors. With the limited knowledge about the stepper ...
0
votes
3answers
547 views
Can a motor driver for 5V be used for a 24V motor?
I’m controlling a 5V motor with Arduino but need more torque which means a more powerful motor. Here is my scheme. (I took it form a tutorial):
Here Arduino is controlling a 5V unipolar stepper ...
3
votes
1answer
175 views
Actuating a pneumatic solenoid manifold with Arduino
I need to programmatically actuate 5 pneumatic solenoids. Would it be feasible to do this by coupling a sufficient number of driver boards like one would use with stepper motors (i.e EasyDriver) to ...
4
votes
1answer
194 views
How to drive stepper motor at maximum speed with a higher voltage power supply in hand?
I had a question about "Wantai" Stepper Motor with an Arduino hooked up to an motor-shield.
Looking at the spec sheets the max volts and current allowed in that particular stepper motor is 3V and 2A. ...
4
votes
1answer
157 views
Computer Controlled Large Slow Stepper Motor
Can someone smarter than me help me out? I do 3D 360 degree pictorial (http://imagesolutions2.deviantart.com/art/Baltimore-Greet-Meet-March-Black-Rock-Shooter-289812655 but it requires flash) of human ...
3
votes
2answers
238 views
Electronically controlled pneumatic lift, or something similar
Need to be able to firmly lift about 110Lbs (~50Kgs) weight, through a distance of upto 12 inches. The weight can be considered to be a flat & square wooden board, hinged to a flat platform, with ...
3
votes
2answers
513 views
stepper motor overheating
I'm using an Arduino to control[1] 2 stepper motors [2][3] (both obtained from scraped printers and I can't seem to find datasheets for them). First I used a 12V 0.5Amp power supply, that worked for ...
1
vote
1answer
197 views
Driving a Turntable with a Two-Phase, Bipolar Stepper
I'm a relative newbie to electronics, and as an educational project I'm building a record turntable. I'm comfortable with the purely mechanical aspects of the project, but I need some help ...
4
votes
1answer
186 views
How do I choose an appropriately sized stepper motor?
My latest hare-brained project involves a stepper motor. But how do I know which stepper to choose?
I'm adding a stepper to the lead screw of my lathe. It will be used for feeds and threads. For ...
0
votes
1answer
955 views
Do I power a stepper motor with 24V and Arduino?
I am building a motorized barn door tracker using an Arduino UNO and a stepper motor I took from an old scanner (Mitsumi M35SP-7T). I have been unable to find the datasheet for this motor ...
10
votes
2answers
844 views
How is this design for a basic PCB pick and place?
I have zero experience with any serious mechanical design, but out of necessity and curiosity, I'm attempting to build a pick and place machine (for my hobby projects as well as low-volume PCB ...
5
votes
1answer
240 views
Servo vs. stepper for camera mount
I would like to make a camera mount where it can rotate automatically around the Z axis, and also make a variable angle against the ground plane.
The camera weighs about 500grams.
Is a servo ...
3
votes
3answers
382 views
Why do i need an endstop sensor with stepper motor?
Sorry if this question seems stupid, probably it is...
I'm try to design some camera dollies that are moved by some stepper motors controlled with a microcontroller. Someone told me that it is ...
4
votes
1answer
371 views
Recording Servo/Motor movement with arduino
Hi I'm really new to Arduino projects and don't really know how to start. I'have to do a project for university. The programming part should be no problem but I don't have any experiance with ...
3
votes
1answer
322 views
Recommend motor type to turn baby rocker, into auto-rocker
Would like to convert a baby bouncer (like this one), which requires continuous manual effort to rock it, into one that use electro-mechanical means to auto-bounce. However, my aim is to make these on ...
2
votes
2answers
1k views
Alternative to A4988 stepper motor driver?
The stepper motor driver based on the Allegro A4988 (also A4983) has a lot of problems with temperature. It is getting very hot and stops to work. And it is difficult to set up with the potentiometer. ...
2
votes
3answers
244 views
What is this type of motor called?
Firstly some background:
I would like to make a magnetic stirrer, like the ones they use in chemistry labs:
A small bar magnet sits inside the glass jar, while another bar magnet, attached to a ...
3
votes
1answer
454 views
Using back to back zener diodes to clip voltage spikes in bipolar stepper motor
I have a stepper motor driven by an Allegro A4983 stepper driver chip and in some cases the motor can be back driven even while being powered up. This leads to blown motor driver chips.
Would I be ...
3
votes
2answers
2k views
smooth a motor movement
i have a stepper motor (controlled by an arduino) that moves some gears and a pulley. the problem is that the pulley jerks a lot: the movement begin and stop too much suddenly. to make the movement ...
2
votes
2answers
276 views
Building and Driving a Stepper Motor
I don't know whether or not I'll actually build one yet, as to do so properly would require ball bearings, metal working, etc and frankly the fund's just aren't available right now(have yet to ...
5
votes
1answer
1k views
L298 output voltage is too low
I'm trying to use an L298N and an Arduino UNO R3 to drive a bipolar stepper motor.
To simplify things, I'm just trying to get a 12v output from either output-1 or output-2 of the l298 (then I can ...
2
votes
3answers
745 views
Bipolar stepper motor: What should the sequence timing be?
What I mean is, how long should a coil be energized before it's de-energized. Also how long should the coil stay de-energized before I power it in the reverse direction. Where can I find this timing ...
0
votes
0answers
178 views
Interfacing a DC chopper circuit with Arduino
I am trying to build a stepper motor driver, and I intend to use a DC chopper circuit and a current-sensing resistor to maintain the current through my windings at rated value even at relatively high ...
1
vote
1answer
195 views
Sparkfun's Quadstepmotor driver and different velocity: concurrency problem?
I'm using quadstepper motor board from Sparkfun:
with Arduino Uno / Leonardo. I can currently driver motors at the same time, but I can't change the velocity separately.
I use this code for ...
2
votes
2answers
182 views
how can i understand when a stepper motor get a complete round?
i have just get out from an old printer a stepper motor and i'm experimenting with it and arduino and easydriver board.
the motors has 4 pin and 8 magnets. i can drive it correctly: i run it and ...
2
votes
1answer
139 views
how to measure stepper motor?
My stepper motor have 4 wire is VEXTA motor 2 phase 1.8"/Step, DC 1.96V, 2.8A.
when i measure the resistance wire 1 & 2 is 0.8 ohms, 3 & 4 is 0.9ohms.
Is it the correct way to measure the ...
2
votes
2answers
137 views
Stepper motor phase
I have a question related to stepper motors.
What does the "phase" of a stepper motor mean? I mean when we say that a stepper motor is a 2 phase stepper motor or a 4 phase stepper motor, what does it ...
3
votes
2answers
791 views
DIY linear servo mechanism?
This might belong on the new Makers site, but it could be applicable here too.
I'd like to position a device on a 1 meter linear shaft to within 50 microns. I can currently, with steppers, get down ...
2
votes
2answers
334 views
Can stepper motors work underwater?
Based on the design of stepper motors, having no exposed electrical parts, is it then conceivable that they will work submerged in water or other fluids?
1
vote
1answer
283 views
How to determine velocity profile for two stepper motor in robot driving
A robot has 2 parallel driving wheel. I don't know the friction of the ground surface. However, I can set the acceleration, starting velocity, ending velocity. The velocity profile has to be ...
