MyFocuserPro motor not moving

[8324689]

Hi there

Any help greatly appreciated please

I completed the youtube tutorial here

but some things Ive noticed....

He stated to check the motor unplugged and it should move and upon power it should lock. Mine did not move with power off....

When I took a put the multimeter in the circuit to test the DRV8825 power with the dimmer on the DRV8825 i got nothing on my multmeter.

 I then took the multi meter out of the circuit and connected to the MFPro program an it connected. I tested with -500 and it moved - albeit very slowly

Then I restested it and now the stepper motor makes a sound like it wants to move but does not. 

There is a clip on the stepper motor should it be there - as per photo?

Ive taken a photo -could this be a physical lock on it?

https://photos.app.goo.gl/t8ahhJyoqP1prNo47

https://photos.app.goo.gl/iY61qUf5QNAhumtW9

Any help greatly apreciated pls

Thanks

 

 

[8324689]

Get Coil Power = False

[brown_rb]

You might want to try this link

 

https://www.dropbox.com/s/ks3cwabbg2cxcou/Stepper%20Motor%20Issues-01.mp4?dl=1

[8324689]

Thanks for this I will check it later on the day if anyone knows does that clip need to be removed? Thanks

[fireshipjohn]

Don't remove the circlip, that is retaining the shaft in the gearbox.

As your motor has a gearbox you wont probably feel the initial movement and because of the gearbox it will be hard to turn manually.

If its making a noise like it wants to move, check your wiring to the motor, each phase should measure low resistance, so about 20ohms. The wire colours are often not a good guide!

Then check your power supply make sure it can deliver a good couple of amps otherwise the motor will just stall.

And finally check the setting on the DRV8825 that the coils get enough current.

 

Good luck...

 

[8324689]

Thank you both for this I won’t get a chance to look at it until 8 pm tonight when the kids go to bed! Thank you

[fireshipjohn]

From the description its the DRV8225 setting, you must get that reading, Try this video:

 

[8324689]

Hello all rainy night people

 

Ive progressed with this and started again using the solderless version....

When I compile I get an error 

 

" #include <myQueue.h>                      // By Steven de Salas
          ^~~~~~~~~~~
compilation terminated.
exit status 1
myQueue.h: No such file or directory"

 

I cannot find this on his website or on google.... Any leads please?

 

ANSWER: Libraries should be extracted/////// Sorry!!!

Edited September 4, 2020 by 8324689

[fozzybear]

46 minutes ago, 8324689 said:

Hello all rainy night people

 

Ive progressed with this and started again using the solderless version....

When I compile I get an error 

 

" #include <myQueue.h>                      // By Steven de Salas
          ^~~~~~~~~~~
compilation terminated.
exit status 1
myQueue.h: No such file or directory"

 

I cannot find this on his website or on google.... Any leads please?

when you download the arduino firmware from 

https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/ARDUINO FIRMWARE/

look for latest version 299

then unzip and read the file libraries-important-read this.txt  and all will explain as this includes all 

Unzip the file
Locate the folder myFocuserPro2libraries, and in that folder 

There should be SIXTEEN folders
    Bounce2
    LCD5110_Basic
    myAFMotor
    myDallasTemperature
    myDHT21
    myEEPROM
    myHalfStepper
    myI2cKeypad
    myIRRemote
    myOLED
    myQueue
    myRotaryEncoder
    myTFTv2
    myUTFT
    newliquidCrystal
    OneWire

Move these folders to Documents\Arduino\libraries folder (for windows). Replace any existing folders or files.

Do not edit or replace any of these files. They have been edited and modified to use with the myFocuserPro firmware.

 

hope this helps
 

[8324689]

Thanks for this.....

I managed to figure that out but now when I connect to FP2 software I get nothing at all....

So just to recap 

I have connected all the wires as the solderless diagram states. 

Power supply is center positiive so have connected the center where the diagram states positive should go.

I have updated the firmware with libraries. 

I have installed the ASCOM driver.

On booting the MFP software it connects on COM10 but I get nothing at all - no movement or sound of motor being 'on'.......

I have a clamp meter /multimeter but not sure where I should test and how

Sorry about this I have some very minor experience but am stumped.....

Thanks to all who have helped thus far

 

 

Edited September 4, 2020 by 8324689

[fozzybear]

have you changed the dip switches on the DRV8825 board? and you can change the pot settings on the DRV8825 chip as well to give more current. What stepper are you using? 

[8324689]

I will definitely  try tonight

Im using 

Planetary Gearbox Nema 17 Stepper Motor 0.4A L=33mm 4-wire CNC 3D Printer

[8324689]

But it should work even if all jumpers are set to "0" though I believe?

[8324689]

On 24/06/2020 at 08:58, fireshipjohn said:

From the description its the DRV8225 setting, you must get that reading, Try this video:

 

When I touch the dial with the red multimeter (as per video) probe it goes to "0"

wheni touch the black probe on ground and the red on the dial (as per video) it goes to "1.285"

[8324689]

Not sure if this helps but here’s  a video! 
 

https://photos.app.goo.gl/fwDt6258CUtNnfo86

[fozzybear]

you have wired up the coils correctly

A+ = Black goes to 1A

A- = Green goes to 1B

B+ = Red goes to 2A

B- = Blue goes to 2B

[8324689]

11 minutes ago, fozzybear said:

you have wired up the coils correctly

A+ = Black goes to 1A

A- = Green goes to 1B

B+ = Red goes to 2A

B- = Blue goes to 2B

Yor probably cant see in my video but yes these are corresponding with your post and the diagram.... Thanks 

Edited September 5, 2020 by 8324689

[8324689]

I wonder if there is a simple way to test the motor just to see if it is working? I dont have a LED though...

 

 

Edited September 5, 2020 by 8324689

[8324689]

I get continuity  between

Green and Black and 

Red and Blue on the motor....

[fozzybear]

I've looked at your video and wiring looks ok and you have uploaded the correct firmware

 

[8324689]

23 minutes ago, fozzybear said:

I've looked at your video and wiring looks ok and you have uploaded the correct firmware

 

Thanks for the reply!

Im happy to say I changed the DRV board and the Nano and now it seems to be ok!!!

BUT......

I have set up my multimeter between one wire on the stepper motor as the original video I posted @38 minutes I get nothing......

BUT if I use my clamp meter on the same wire I get -00.55 ( idont think polarity matters as the multimeter probes were put any which way)

So this means my multimeter is broken?

 

Would youhave any idea what setting I should try to set with the dial please? 

Earlier on the ground pin it (with my dodgy? multimeter) went to "1.285"

*****UPDATE THE ITALICS ABOVE ARE WRONG. MY CLAMP ALWAYS READ "00.55"

IM REALLY CONFUSED NOW RE READING AND SETTING THE DRV88 DIAL****

Thank you for sticking with me!!!!

 

 

 

 

 

 

 

Edited September 5, 2020 by 8324689

[fozzybear]

the pot to me at that setting giving 0.55amps if the motor is warm adjust so as smooth rotation is what you want. adjust so you cannot stop the motor by hand when rotating but as it is a geared motor you probably could not stop it.

On another note do not disconnect the motor with 12v applied otherwise a dead driver board....

[8324689]

11 minutes ago, fozzybear said:

the pot to me at that setting giving 0.55amps if the motor is warm adjust so as smooth rotation is what you want. adjust so you cannot stop the motor by hand when rotating but as it is a geared motor you probably could not stop it.

On another note do not disconnect the motor with 12v applied otherwise a dead driver board....

The clamp alwys says 00.55 even when not clpamped onto a cable..... So I think is me not knowing how to use it properly..... Im checking the manual again now

It was working....... and the motor wasnt seeming to be getting hot.... maybe just go with it!? It was pretty smooth I think and not moving v fast...

Do you mean always turn off 12v power from power supply 1st and then unplug USB ?

I think ive just blown another one :((

Thank youfor this help

Edited September 5, 2020 by 8324689

[fozzybear]

I've read Roberts Documentation and he only state's never disconnect/connect stepper motor or anc devices (temp)  with 12v on, no mention about usb connection as far as I can see so ok to apply 12v then plug in usb and visa versa unplug usb then 12v power

Edited September 5, 2020 by fozzybear
edit text

[fozzybear]

your old nano is probably ok as it is the drv8825 that dies first.