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AR4 wrong position move

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Avatar of ttrobotics
(@ttrobotics)
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I reconnect all cables but I have a problem with AR4 moves to the wrong position. Jog command also doesn't work correctly.

It seems that J1 and J3 axis moves with wrong angles. @Chris Annin can you tell me what to check in my AR4 setup?



   
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Avatar of Mateo Josue Cruz Gallegos
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switch wires on the driver only one, for example the black with the green and it will change directions

 


   
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Chris Annin
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Can you email pics/video illustrating the angles commanded vs what is executed so I have an idea how far off each axis is. Double check that you do not have the J1 and J3 motors swapped. This has been a common mistake - with the 50:1 J3 motor and 10:1 J1 motors swapped on the wrong joints the positions will be off quite a bit. Also check your driver dip switch settings to make sure they are on the correct micro step.



   
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Avatar of ttrobotics
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@chris-annin @Chris Annin You are right. I made wrong motor connections. I will change it. I will check all relevant links. I will inform you.



   
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Avatar of ttrobotics
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@chris-annin

Auto Calibrate

The video of all the joints is on my Youtube channel



   
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Avatar of Mateo Josue Cruz Gallegos
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@ttrobotics Did you check de J1 Limit switch? It seems like the J1 limit swtich has a false contact when GND o 3.3v has no contiue



   
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Avatar of ttrobotics
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@mateo-josue-cruz-gallegos

I checked the J1 limit switch. There's no problem with the connection.

 

(558) J1 limit swicth control - YouTube



   
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Chris Annin
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@ttrobotics It appears J3 is moving too fast and J1 far too slow. I suspect you have the motors swapped. Please check that and let me know.



   
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Chris Annin
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Also the calibration wil fault out if the switch isn't made within full rotation of that joint so if the 50:1 motor is installed on J1 instead of J3 it wont make it to the switch in time.



   
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Avatar of ttrobotics
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@chris-annin

J2 Calibrate

The video of all the joints is on my Youtube channel

(552) J2 calibrate - YouTube



   
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Avatar of ttrobotics
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@chris-annin

J3 Calibrate

The video of all the joints is on my Youtube channel

 

(552) J3 calibrate - YouTube



   
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Avatar of ttrobotics
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@chris-annin

J4 Calibrate

The video of all the joints is on my Youtube channel

 

(552) J4 calibrate - YouTube

 


   
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Avatar of ttrobotics
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@chris-annin

J5 Calibrate

(552) J5 calibrate - YouTube



   
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Avatar of ttrobotics
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@chris-annin

J6 Calibrate

(552) J6 calibrate - YouTube



   
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Avatar of ttrobotics
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@chris-annin

J1 Calibrate

(552) J1 Calibrate - YouTube



   
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