The Big Easy Stepper Motor Driver + Arduino

Discussions area for bildr's blog posts.
Can we rotate stepper motor manually(by hand) when it is not connected to power ?
My stepper motor is fixed ..it is not rotate when i tried manually not even 1degree
P N I
 
Posts: 28
Joined: Tue Jul 10, 2012 5:22 am

Yeah, When it is not connected to power, you should be able to rotate it by hand.
Unless it is geared or a huge motor (like over 1kg).

P N I wrote:Can we rotate stepper motor manually(by hand) when it is not connected to power ?
My stepper motor is fixed ..it is not rotate when i tried manually not even 1degree
ameyer
Founder
 
Posts: 3318
Joined: Thu Jan 21, 2010 11:59 pm
Location: The Bay Area

Hi...
Thank you for your cooperation and early replies.
I just bought a new stepper and that's working fine.
I have a compass sensor that gives reading from 0 to 359.....now i want to change (rotate) angle of my stepper with respect to the angle change at compass sensor. Please give me any idea about that ..
Thanking you in anticipation.......
ameyer wrote:Yeah, When it is not connected to power, you should be able to rotate it by hand.
Unless it is geared or a huge motor (like over 1kg).

P N I wrote:Can we rotate stepper motor manually(by hand) when it is not connected to power ?
My stepper motor is fixed ..it is not rotate when i tried manually not even 1degree
P N I
 
Posts: 28
Joined: Tue Jul 10, 2012 5:22 am

You just need to tell it to rotate to that point.

Code: Select all
stepper.moveTo(compassPosition);



P N I wrote:Hi...
Thank you for your cooperation and early replies.
I just bought a new stepper and that's working fine.
I have a compass sensor that gives reading from 0 to 359.....now i want to change (rotate) angle of my stepper with respect to the angle change at compass sensor. Please give me any idea about that ..
Thanking you in anticipation.......
ameyer wrote:Yeah, When it is not connected to power, you should be able to rotate it by hand.
Unless it is geared or a huge motor (like over 1kg).

P N I wrote:Can we rotate stepper motor manually(by hand) when it is not connected to power ?
My stepper motor is fixed ..it is not rotate when i tried manually not even 1degree
ameyer
Founder
 
Posts: 3318
Joined: Thu Jan 21, 2010 11:59 pm
Location: The Bay Area

Hi.......Thank you very much for your reply...........I appriciate your help
Basically i am using AMARINO (http://www.amarino-toolkit.net/) toolkit to get compass sensor reading to run my stepper motor.
I installed their library and also installed amarino application in my phone. I mixed up sensor event example of meetandroid library http://www.amarino-toolkit.net/index.php/download.html and "one stepper example" of your library..............
HERE is my code
Code: Select all
#include <AccelStepper.h>


#include <MeetAndroid.h>

MeetAndroid meetAndroid(error);
int motorSpeed = 9600; //maximum steps per second (about 3rps / at 16 microsteps)
int motorAccel = 80000; //steps/second/second to accelerate

int motorDirPin = 2; //digital pin 2
int motorStepPin = 3; //digital pin 3

AccelStepper stepper(1, motorStepPin, motorDirPin);
void error(uint8_t flag, uint8_t values){
  meetAndroid.send("ERROR: ");
  meetAndroid.send(flag);


}

void setup() {
  Serial.begin(57600);
  meetAndroid.registerFunction(compass, 'A');
  stepper.setMaxSpeed(motorSpeed);
  stepper.setSpeed(motorSpeed);
  stepper.setAcceleration(motorAccel);

   stepper.moveTo(32000);
}

void loop() {
  meetAndroid.receive();
 
}


void compass(byte flag, byte numOfValues) {

  // we use getInt(), since we know only data between 0 and 359 will be sent
  int heading = meetAndroid.getInt();
  if (stepper.distanceToGo() == 0){

    stepper.moveTo(meetAndroid.getInt());
   // Serial.println(heading);
  }



  //these must be called as often as possible to ensure smooth operation
  //any delay will cause jerky motion
  stepper.run();
 
}


But didn't get success ......i need your help........Thanking you in anticiaption
ameyer wrote:You just need to tell it to rotate to that point.

Code: Select all
stepper.moveTo(compassPosition);



P N I wrote:Hi...
Thank you for your cooperation and early replies.
I just bought a new stepper and that's working fine.
I have a compass sensor that gives reading from 0 to 359.....now i want to change (rotate) angle of my stepper with respect to the angle change at compass sensor. Please give me any idea about that ..
Thanking you in anticipation.......
ameyer wrote:Yeah, When it is not connected to power, you should be able to rotate it by hand.
Unless it is geared or a huge motor (like over 1kg).

P N I wrote:Can we rotate stepper motor manually(by hand) when it is not connected to power ?
My stepper motor is fixed ..it is not rotate when i tried manually not even 1degree
P N I
 
Posts: 28
Joined: Tue Jul 10, 2012 5:22 am

Please explain. It didnt work at all? Or it didnt work as you thought, or what?

P N I wrote:But didn't get success ......i need your help........Thanking you in anticiaption
ameyer
Founder
 
Posts: 3318
Joined: Thu Jan 21, 2010 11:59 pm
Location: The Bay Area

Hi ......
My motor details....
Phase current 0.6 A

Holding torque 0.074 Nm
Rated voltage max. 40 VAC/DC
Flange size 56.5
Overall length 27.6 mm
Shaft 5 mm



Step angle 3.75°
Step angle tolerance 5%
Litz wire length 300 mm, AWG 26 - 24...

My motor run accurately with one stepper example of library.....
As i have told you about Amarino bluetooth compass sensor (Amarino toolkit).
Here is the program for compass reading
Code: Select all
#include <MeetAndroid.h>

// MeetAndroid meetAndroid();
// you can define your own error function to catch messages
// where not fuction has been attached for
MeetAndroid meetAndroid(error);

void error(uint8_t flag, uint8_t values){
  Serial.print("ERROR: ");
  Serial.print(flag);
}

void setup() 
{
  // use the baud rate your bluetooth module is configured to
 
  Serial.begin(115200);
 
  // register callback functions, which will be called when an associated event occurs.
  // - the first parameter is the name of your function (see below)
  // - match the second parameter ('A', 'B', 'a', etc...) with the flag on your Android application
  meetAndroid.registerFunction(compass, 'A'); 
}

void loop()
{
  meetAndroid.receive(); // you need to keep this in your loop() to receive events
}

/*
 * This method is called constantly.
 * Compass events are sent several times a second.
 *
 * note: flag is in this case 'A' and numOfValues is 1
 * since compass event sends exactly one single int value for heading
 */
void compass(byte flag, byte numOfValues)
{
  // we use getInt(), since we know only data between 0 and 360 will be sent
  int heading = meetAndroid.getInt();
 
}


I mixed it with the one stepper example.
Here is the mixed code
Code: Select all
#include <AccelStepper.h>


#include <MeetAndroid.h>

MeetAndroid meetAndroid(error);
int motorSpeed = 9600; //maximum steps per second (about 3rps / at 16 microsteps)
int motorAccel = 80000; //steps/second/second to accelerate

int motorDirPin = 2; //digital pin 2
int motorStepPin = 3; //digital pin 3

AccelStepper stepper(1, motorStepPin, motorDirPin);
void error(uint8_t flag, uint8_t values){
  meetAndroid.send("ERROR: ");
  meetAndroid.send(flag);


}

void setup() {
 
  stepper.setMaxSpeed(motorSpeed);
  stepper.setSpeed(motorSpeed);
  stepper.setAcceleration(motorAccel);
 meetAndroid.registerFunction(compass, 'A');
 Serial.begin(115200);
  // stepper.moveTo(32000);
}

void loop() {
  meetAndroid.receive();
 
}

void compass(byte flag, byte numOfValues) {

  // we use getInt(), since we know only data between 0 and 359 will be sent
  int heading = meetAndroid.getInt();
  if (stepper.distanceToGo() == 0){

    stepper.moveTo(heading*13); //multiplied the heading with 13 to change 0-359 to 0-3200.....do you have any better idea?
    Serial.println(heading);
  }
  //these must be called as often as possible to ensure smooth operation
  //any delay will cause jerky motion
  stepper.run();
}


As i get compass reading on arduino, motor start running but runs very very very slow.
I want to rotate it with respect to my sensor reading.
Thanking you in anticipation
ameyer wrote:Please explain. It didnt work at all? Or it didnt work as you thought, or what?

P N I
 
Posts: 28
Joined: Tue Jul 10, 2012 5:22 am

Yoiu have a few issues with your code. You need to call the stepper.run as much as possible. That means having it in your loop. Also that serial.print you have is toxic, that will kill the speed as printing to the serial bus is very very slow.

Try this:

Code: Select all

#include <AccelStepper.h>
#include <MeetAndroid.h>

MeetAndroid meetAndroid(error);
int motorSpeed = 9600; //maximum steps per second (about 3rps / at 16 microsteps)
int motorAccel = 80000; //steps/second/second to accelerate

int heading = 0;

int motorDirPin = 2; //digital pin 2
int motorStepPin = 3; //digital pin 3

AccelStepper stepper(1, motorStepPin, motorDirPin);
void error(uint8_t flag, uint8_t values){
  meetAndroid.send("ERROR: ");
  meetAndroid.send(flag);


}

void setup() {

  stepper.setMaxSpeed(motorSpeed);
  stepper.setSpeed(motorSpeed);
  stepper.setAcceleration(motorAccel);
meetAndroid.registerFunction(compass, 'A');
Serial.begin(115200);
  // stepper.moveTo(32000);
}

void loop() {
  meetAndroid.receive();
 
  if (stepper.distanceToGo() == 0){
    stepper.moveTo(heading*13); //multiplied the heading with 13 to change 0-359 to 0-3200.....do you have any better idea?
    //Serial.println(heading);  //this will slow you down a TON
  }
 
  //these must be called as often as possible to ensure smooth operation
  //any delay will cause jerky motion
  stepper.run();
 
}

void compass(byte flag, byte numOfValues) {

  // we use getInt(), since we know only data between 0 and 359 will be sent
  heading = meetAndroid.getInt();
}





P N I wrote:Hi ......
My motor details....
Phase current 0.6 A

Holding torque 0.074 Nm
Rated voltage max. 40 VAC/DC
Flange size 56.5
Overall length 27.6 mm
Shaft 5 mm



Step angle 3.75°
Step angle tolerance 5%
Litz wire length 300 mm, AWG 26 - 24...

My motor run accurately with one stepper example of library.....
As i have told you about Amarino bluetooth compass sensor (Amarino toolkit).
Here is the program for compass reading
Code: Select all
#include <MeetAndroid.h>

// MeetAndroid meetAndroid();
// you can define your own error function to catch messages
// where not fuction has been attached for
MeetAndroid meetAndroid(error);

void error(uint8_t flag, uint8_t values){
  Serial.print("ERROR: ");
  Serial.print(flag);
}

void setup() 
{
  // use the baud rate your bluetooth module is configured to
 
  Serial.begin(115200);
 
  // register callback functions, which will be called when an associated event occurs.
  // - the first parameter is the name of your function (see below)
  // - match the second parameter ('A', 'B', 'a', etc...) with the flag on your Android application
  meetAndroid.registerFunction(compass, 'A'); 
}

void loop()
{
  meetAndroid.receive(); // you need to keep this in your loop() to receive events
}

/*
 * This method is called constantly.
 * Compass events are sent several times a second.
 *
 * note: flag is in this case 'A' and numOfValues is 1
 * since compass event sends exactly one single int value for heading
 */
void compass(byte flag, byte numOfValues)
{
  // we use getInt(), since we know only data between 0 and 360 will be sent
  int heading = meetAndroid.getInt();
 
}


I mixed it with the one stepper example.
Here is the mixed code
Code: Select all
#include <AccelStepper.h>


#include <MeetAndroid.h>

MeetAndroid meetAndroid(error);
int motorSpeed = 9600; //maximum steps per second (about 3rps / at 16 microsteps)
int motorAccel = 80000; //steps/second/second to accelerate

int motorDirPin = 2; //digital pin 2
int motorStepPin = 3; //digital pin 3

AccelStepper stepper(1, motorStepPin, motorDirPin);
void error(uint8_t flag, uint8_t values){
  meetAndroid.send("ERROR: ");
  meetAndroid.send(flag);


}

void setup() {
 
  stepper.setMaxSpeed(motorSpeed);
  stepper.setSpeed(motorSpeed);
  stepper.setAcceleration(motorAccel);
 meetAndroid.registerFunction(compass, 'A');
 Serial.begin(115200);
  // stepper.moveTo(32000);
}

void loop() {
  meetAndroid.receive();
 
}

void compass(byte flag, byte numOfValues) {

  // we use getInt(), since we know only data between 0 and 359 will be sent
  int heading = meetAndroid.getInt();
  if (stepper.distanceToGo() == 0){

    stepper.moveTo(heading*13); //multiplied the heading with 13 to change 0-359 to 0-3200.....do you have any better idea?
    Serial.println(heading);
  }
  //these must be called as often as possible to ensure smooth operation
  //any delay will cause jerky motion
  stepper.run();
}


As i get compass reading on arduino, motor start running but runs very very very slow.
I want to rotate it with respect to my sensor reading.
Thanking you in anticipation
ameyer wrote:Please explain. It didnt work at all? Or it didnt work as you thought, or what?

ameyer
Founder
 
Posts: 3318
Joined: Thu Jan 21, 2010 11:59 pm
Location: The Bay Area

Hello,
Being a newbie, I would need some advices before purchasing a new stepper.
I have already ordered my big easy driver but some questions are still there.
I can get high torque steppers at a decent price. here are their specs:

3,3V 2A
holding torque: 70 N.cm
4,8V 1,6A
holding torque:170 N.cm

my first question is can I power these 2 stepper with higher current without damaging anything.
for instance, for the first stepper, if I feed the board with 10V how can I precisely limit the current to 2A?

My second question is about speed.
what is the highest speed I can reach with the arduino? I have read that the high inductance ( of the second stepper) will limit the speed.

Thanks for your help
kateL
 
Posts: 1
Joined: Tue Sep 03, 2013 4:42 am

A lot of people ask what voltage they should use to power their motor. Well, when using a stepper driver, you are powering the driver, not the motor. The driver will take over powering the motor for you.

It is best to power the driver with the highest voltage you can ( up to 35V max for this driver ). This will allow the motor to spin faster than if powered at a lower voltage. Exactly why this is is pretty complex, but if you want to know more about it, you should really read this: http://www.geckodrive.com/support/step- ... asics.html

On the bigEasy driver is a mini potentiometer to control the current to the motor. This varies between 0ma and 2A (2000ma). You want to set it to whatever your motor is rated to. Too high, and you could burn the motor up, too low, you wont get all the power out of your motor. Note: The arrow indicators on the current adjustment potentiometer are backwards. Keep this in mind when adjusting the current limits. If you are running a higher power motor, you will probably want to put a heat sink on the driver as well. (I have heard anything over 1A will need it.)


kateL wrote:Hello,
Being a newbie, I would need some advices before purchasing a new stepper.
I have already ordered my big easy driver but some questions are still there.
I can get high torque steppers at a decent price. here are their specs:

3,3V 2A
holding torque: 70 N.cm
4,8V 1,6A
holding torque:170 N.cm

my first question is can I power these 2 stepper with higher current without damaging anything.
for instance, for the first stepper, if I feed the board with 10V how can I precisely limit the current to 2A?

My second question is about speed.
what is the highest speed I can reach with the arduino? I have read that the high inductance ( of the second stepper) will limit the speed.

Thanks for your help
ameyer
Founder
 
Posts: 3318
Joined: Thu Jan 21, 2010 11:59 pm
Location: The Bay Area

Ameyer,

Thanks for pointing me over here from the Easy Driver tutorial. I'm unsure if I need the Easy Driver or the Big Easy Driver. Will this library and code work on the Easy Driver or do I need to go BIG!?

Also I have an old UNO laying around but I'm pretty sure it's dead. I do however have an old working Teensy board.

Could the Easy Driver or Big Easy Driver work with a Stepper Motor and a Teensy instead of Ardunio?

I don't mean to be a pain but I'm trying to work out how to code and wire this project before buying everything and finding I can't get anything working or I've purchased things I don't need.

Thanks.
growe19
 
Posts: 6
Joined: Sun Dec 08, 2013 5:52 am

This code will work with almost any stepper driver, so no need to change your stepper driver.

You can use it with the teensy, but I haven't ever done it, so I wont be of much help with that. Worth looking at this: http://www.pjrc.com/teensy/teensyduino.html

To see if the uno is broken... Try the arduino blink example and see if the LED near pin 13 on your arduino will blink:
Code: Select all

int led = 13;


void setup() {               
  pinMode(led, OUTPUT);     
}

void loop() {
  digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);               // wait for a second
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);               // wait for a second
}



growe19 wrote:Ameyer,

Thanks for pointing me over here from the Easy Driver tutorial. I'm unsure if I need the Easy Driver or the Big Easy Driver. Will this library and code work on the Easy Driver or do I need to go BIG!?

Also I have an old UNO laying around but I'm pretty sure it's dead. I do however have an old working Teensy board.

Could the Easy Driver or Big Easy Driver work with a Stepper Motor and a Teensy instead of Ardunio?

I don't mean to be a pain but I'm trying to work out how to code and wire this project before buying everything and finding I can't get anything working or I've purchased things I don't need.

Thanks.
ameyer
Founder
 
Posts: 3318
Joined: Thu Jan 21, 2010 11:59 pm
Location: The Bay Area

Adam the way you help people on here is outstanding.

Really wish I could get my Arduino working. I remember this problem when I first got it and never really progressed. When I plug it into my Mac it just isn't recognised. No setting up of the network etc to add the USB in the Arduino app. Unable to load any sketches onto it. But the light on the board is on when connected.

Now looking at a RaspberryPi solution to making a DSLR slider but all examples so far are really over thought. Simple motor direction, speed and start/stop is all I'm trying to make.

*scratches head*
growe19
 
Posts: 6
Joined: Sun Dec 08, 2013 5:52 am

Thanks! I try :D
Raspberry pi is a full computer, so it is going to be a lot more complicated.

If it is an arduino UNO, then yeah, it sounds broken. You don't need drivers for it on the mac, and it should just show up under tools>serial-port in the arduino software as something like "tty.usbmodemfa131" .

If it is one of the older ones, then you need the FTDI drivers to use it.


growe19 wrote:Adam the way you help people on here is outstanding.

Really wish I could get my Arduino working. I remember this problem when I first got it and never really progressed. When I plug it into my Mac it just isn't recognised. No setting up of the network etc to add the USB in the Arduino app. Unable to load any sketches onto it. But the light on the board is on when connected.

Now looking at a RaspberryPi solution to making a DSLR slider but all examples so far are really over thought. Simple motor direction, speed and start/stop is all I'm trying to make.

*scratches head*
ameyer
Founder
 
Posts: 3318
Joined: Thu Jan 21, 2010 11:59 pm
Location: The Bay Area

I recall I might have accidently put 240v through it.

I'm reluctant to buy another one while I don't know how to achieve a direction switch and speed control to make the motor move a slider for my DSLR.

I can appreciate the encouragement of people with the knowledge wanting others to learn and not just give them the answer but I don’t have the patience haha.

I followed a tutorial for the Teensy 2 to get a push button to act as a keyboard and be a one button COPY command. That was easy, it was all there. Unfortunately the Teensy isn’t recognised by the Mac whilst the Arduino hasn’t setup the network settings for the usbmodem. So I can’t even use the Teensy at the moment either.
growe19
 
Posts: 6
Joined: Sun Dec 08, 2013 5:52 am

Im not sure what you mean by this: "Arduino hasn’t setup the network settings for the usbmodem" - You just plaug in the Arduino, no setup at all is needed. It should just appear in the Arduino software under the tools->serial port.

But 240V would kill it no issue.

Also, if you had a working arduino, I could show you how to hook it up to make it do what you want. I'm not about "you need to learn to make it", im about people building things.


growe19 wrote:I recall I might have accidently put 240v through it.

I'm reluctant to buy another one while I don't know how to achieve a direction switch and speed control to make the motor move a slider for my DSLR.

I can appreciate the encouragement of people with the knowledge wanting others to learn and not just give them the answer but I don’t have the patience haha.

I followed a tutorial for the Teensy 2 to get a push button to act as a keyboard and be a one button COPY command. That was easy, it was all there. Unfortunately the Teensy isn’t recognised by the Mac whilst the Arduino hasn’t setup the network settings for the usbmodem. So I can’t even use the Teensy at the moment either.
ameyer
Founder
 
Posts: 3318
Joined: Thu Jan 21, 2010 11:59 pm
Location: The Bay Area

Sorry on my Mac when it did work when it first initially gets connected it creates some kind of network profile which I was assuming was the usbmodem port as that port doesn't appear unless that process happens.

ameyer wrote:Also, if you had a working arduino, I could show you how to hook it up to make it do what you want. I'm not about "you need to learn to make it", im about people building things.


You sir are a legend. I don't want to hijack this thread so if you could contact me via email I'd like to recompense you for your generosity.
growe19
 
Posts: 6
Joined: Sun Dec 08, 2013 5:52 am

i have Arduino UNO and "Big Easy Driver" for a Stepper Motor 16 NEMA and i need to have two speeds : a very slow one at Forward, and the maximum speed at Backward. and i don't know the steps to make a code like this, all i have done is Forward at speed of one Rovolution/min - (that what i need in my project) -but i don't know how to Backward in high speed at the same code !!
My code is :-

Code: Select all
#include <AccelStepper.h>

int motorSpeed = 53.333; //maximum steps per second (about 3rps / at 16 microsteps)
int motorAccel = 80000; //steps/second to accelerate

int motorDirPin = 2;
int motorStepPin = 3;


AccelStepper stepper(1, motorStepPin, motorDirPin);

void setup(){
stepper.setMaxSpeed(motorSpeed);
stepper.setSpeed(motorSpeed);
stepper.setAcceleration(motorAccel);

stepper.moveTo(-320000); //move 3200 steps (should be 1 rev)
}

void loop(){
if (stepper.distanceToGo() == 0){
 
stepper.setAcceleration(80000);
stepper.moveTo(378240);

}
stepper.run();
}


I'm not good in codes i'm also new as Arduino user ,

please, need help !!!!
hisham
 
Posts: 1
Joined: Sat May 17, 2014 3:52 pm

Are you looking to do this?
Go forward at slow speed for X steps
Wait till finished
go backwards at slow speed
Wait till finished
Repeat

If so, that would be something like this:


Code: Select all

#include <AccelStepper.h>

int motorDirPin = 2;
int motorStepPin = 3;
int moveForward = true;

AccelStepper stepper(1, motorStepPin, motorDirPin);

void setup(){
  stepper.setAcceleration(80000);
}

void loop(){
  if (stepper.distanceToGo() == 0 && moveForward == true){
    moveForward = false;
   
    //set up to go forward
    stepper.setMaxSpeed(53.333);
    stepper.setSpeed(53.333);
   
   
    stepper.moveTo(378240);

  }else if (stepper.distanceToGo() == 0 && moveForward == false){
    moveForward = true;
   
    //set up to go backwards
   stepper.setMaxSpeed(10);
    stepper.setSpeed(10);
   
    stepper.moveTo(0);
   
  }
 
  stepper.run();
}





hisham wrote:i have Arduino UNO and "Big Easy Driver" for a Stepper Motor 16 NEMA and i need to have two speeds : a very slow one at Forward, and the maximum speed at Backward. and i don't know the steps to make a code like this, all i have done is Forward at speed of one Rovolution/min - (that what i need in my project) -but i don't know how to Backward in high speed at the same code !!
My code is :-

Code: Select all
#include <AccelStepper.h>

int motorSpeed = 53.333; //maximum steps per second (about 3rps / at 16 microsteps)
int motorAccel = 80000; //steps/second to accelerate

int motorDirPin = 2;
int motorStepPin = 3;


AccelStepper stepper(1, motorStepPin, motorDirPin);

void setup(){
stepper.setMaxSpeed(motorSpeed);
stepper.setSpeed(motorSpeed);
stepper.setAcceleration(motorAccel);

stepper.moveTo(-320000); //move 3200 steps (should be 1 rev)
}

void loop(){
if (stepper.distanceToGo() == 0){
 
stepper.setAcceleration(80000);
stepper.moveTo(378240);

}
stepper.run();
}


I'm not good in codes i'm also new as Arduino user ,

please, need help !!!!
ameyer
Founder
 
Posts: 3318
Joined: Thu Jan 21, 2010 11:59 pm
Location: The Bay Area

I don't see a code link to the mentioned zip. Has it been removed? I just see a link to the AccelStepper site.
kjs3
 
Posts: 3
Joined: Fri Aug 08, 2014 12:25 pm

Looks like code.bildr.org is down.
kjs3
 
Posts: 3
Joined: Fri Aug 08, 2014 12:25 pm

Huh... You don't see this?

What browser/OS are you on?

You can direct download from here: http://code.bildr.org/download/1011.zip

Screen Shot 2014-08-08 at 11.03.00 PM.png
Screen Shot 2014-08-08 at 11.03.00 PM.png (188.56 KiB) Viewed 6778 times




kjs3 wrote:Looks like code.bildr.org is down.
ameyer
Founder
 
Posts: 3318
Joined: Thu Jan 21, 2010 11:59 pm
Location: The Bay Area

I works for me now. Thanks.
Before I didn't see it and directly entering http://code.bildr.org in my browser didn't work either.

Chrome v36.0.1985.125 on OS X 10.9.4
kjs3
 
Posts: 3
Joined: Fri Aug 08, 2014 12:25 pm

Interesting, it sounds like code.bildr.org was not working for you.

kjs3 wrote:I works for me now. Thanks.
Before I didn't see it and directly entering http://code.bildr.org in my browser didn't work either.

Chrome v36.0.1985.125 on OS X 10.9.4
ameyer
Founder
 
Posts: 3318
Joined: Thu Jan 21, 2010 11:59 pm
Location: The Bay Area

My motor is running really slowly:
I'm using the gecko 251x motor driver and a gecko nema17 motor. the motor is spinning pretty slowly (1 rps) even when I set the speed to be super high: like...
long maxSpeed = 1000000;
long motorSpeed = 9000000;
stepper.runSpeed();

I'm using the accelstepper library. Everything seems to work but the speed is so slow. Is there any insight into what I might look into to run it faster?

thanks
gabriella levine
 
Posts: 5
Joined: Thu Feb 12, 2015 7:27 pm

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