1 Topic by Rayner1

  • Rayner1
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Topic: printhead locks up on initial power up

everything looks clear.

The printhead moves freely in both directions  (by hand without power)

As soon as power is turned on, screens says "initializing" the head moves smoothly to the back right home potions...and tries to keep going. Belt slip noise, power off.

What can I do?

Thanks,

Bill

2 Reply by carl_m1968

  • carl_m1968
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Re: printhead locks up on initial power up

Rayner1 wrote:

everything looks clear.

The printhead moves freely in both directions  (by hand without power)

As soon as power is turned on, screens says "initializing" the head moves smoothly to the back right home potions...and tries to keep going. Belt slip noise, power off.

What can I do?

Thanks,

Bill


With power off bring your bring your x axis (left to right movement) full forward by hand. Look up in the top of the machine and make sure that it is bumping into the two white pullies on both sides. It sounds to me it is offset by a few teeth and the right side is hitting the back physical limit before the left side hits the home sensor. That tells me the right side is further back then the left. You will need to release the belt tension and move the belt over the the roller by hand a few teeth until both sides reach the white pullies at the same time.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

3 Reply by Rayner1

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Re: printhead locks up on initial power up

this is exactly the problem.

It appears to be about 4 teeth shy.

How do I release the belt tension?

I have attached a photo of the right side with the left side against the pulley.

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4 Reply by carl_m1968 (edited by carl_m1968 2015-02-01 01:17:41)

  • carl_m1968
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Re: printhead locks up on initial power up

Rayner1 wrote:

this is exactly the problem.

It appears to be about 4 teeth shy.

How do I release the belt tension?

I have attached a photo of the right side with the left side against the pulley.


Remove the cover on the which ever side is off then loosen the two screws holding the bearing cub for the end of that rod. That will allow the rod to slide forward and allow you to move the belt by hand. It might be easier to adjust the left side though as the right side is the drive side and the motor makes it harder to move the belt on that side.

Just remember to confirm the adjustment with tension on the belt.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.