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Motor thumping on brand new Ender 3 v2 - Help


PINQ
 PINQ
(@pinq)
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Joined: 3 months ago
Posts: 1
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Hello, I am new to 3d printing world I have decided to get myself my first printer the Ender 3 v2.

I was studying 3d printing for weeks and I chose this printer for it affordable price and good reviews.

I ordered printer of Aliexpress and it arrived in 7 days to me. I never assembled a 3d printer before but this wasn't hard to assemble by following youtube video. It was all pretty strait forward until I put the printer together and turned it on. The tutorial video I was following stated I need to ''Auto home'' my printer so I did. But when auto homing the printer starts thumping and vibrating hard and stops. I tried googling the problem and thought my Z axis rod might be out of alignment and after completely pulling it out and re attaching Z axis motor with some washers for spacing my Z rod was straight, but it was still hard to manually move Z axis by hand but not by screw coupling. So I adjusted the rollers  a bit and I can now move the Z axis by 1 finger up and down with little force but the printer still thumps when I try to auto home it. I don't know what is the problem, is my printer defective? And if yes what should I do try to return it or what? I did get warranty card with the printer , or should I try to contact the seller I bought the printer from on Aliexpress?

Video of problem:


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kevin
(@kevin)
Prominent Member Admin
Joined: 5 months ago
Posts: 900
 

@pinq Contact the seller to resend you a new one is the best method as you just got it. It looks like not a small issue. Finding where is wrong will cost you much time and enthusiasm.


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Botauser
(@botauser)
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Joined: 1 week ago
Posts: 1
 

@pinq Hi I have the same problem. Are you able to find a solution? care to share


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kevin
(@kevin)
Prominent Member Admin
Joined: 5 months ago
Posts: 900
 

@botauser I think he had contacted the seller to get a replacement.

Your Z-axis moving is not moving correctly. If you are interested in fixing it by yourself. You can check the Z motor wiring first. Then check if the X-axis is parallel and if the wheels are too tight? If the issue does not come from these factors.

You need to check the Z motor, swap the Z and X motor wiring on motors. Control X moving on Menu to see what is going on. If the Z motor moves fine, that means you got a good Z motor. The problem is from your Z wiring or mainboard.


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