Layer Shift, going to tighten the belts after self test results show less tension than recommended.
 
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Layer Shift, going to tighten the belts after self test results show less tension than recommended.  

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Narceron
(@narceron)
New Member
Layer Shift, going to tighten the belts after self test results show less tension than recommended.

I think I have found appropriate links here in the help section relating to Y-axis shift.  I am going to tighten the belt as it scores outside the range, but I am having trouble getting the screw between the two ends of the pulley to find the thread.  I have taken out one screw to expose that one, but Can't seem to get it to work. 

 

Also, check out my massive Y shift(at least I assume it is.)

Posted : 06/10/2020 3:58 pm
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(@)
Illustrious Member
RE: Layer Shift, going to tighten the belts after self test results show less tension than recommended.

There looks to be a couple issues: but belts, unless much too loose, are seldom the culprit. One, you are losing adhesion to the bed, thus the part warps upwards and compresses layers and causes the nozzle to collide with the part which in turn causes the stepper motors to stall. Also common are friction issues in the bearing/rod interface; but this is most common left to right, not front to rear. 

If you are hearing the nozzle running on the part, start by addressing the adhesion issue - that part shouldn't be lifting off the steel sheet. Washing the sheet in hot soap and water at a sink can be your friend. Use lots of hot water as a rinse, use only fresh paper towels to wash and dry. Do not use alcohol after soap and water.

 

ps: if the set screw is NOT on the shaft flat, which sounds likely, you'll have issues, too. Both set screws MUST be in place to keep the pulley from spinning on the shaft.  And, when you get both screws in place, they need to be tightened FLAT FIRST. Align and tighten the screw on the flat, then and only then tighten the second screw.

This post was modified 4 years ago by --
Posted : 06/10/2020 5:04 pm
Narceron
(@narceron)
New Member
Topic starter answered:
RE: Layer Shift, going to tighten the belts after self test results show less tension than recommended.

I will do that, they look flat on the motor, but I'll reset them to be sure.  yeah, I've had issues with corners pulling up.  A friend suggested using a layer of glue stick, so I will definitely try that as well.

 

Thank you for your response, I appreciate your assistance.

Posted : 06/10/2020 7:05 pm
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(@)
Illustrious Member
RE: Layer Shift, going to tighten the belts after self test results show less tension than recommended.

Glue Stick will just make it worse. Thoroughly clean the sheet for best results. I'll repeat myself because most people ignore the advice to their own detriment: Soap and hot water works best.

ps: in some cases raising the bed temp after layer 1 can also help hold corners down. Warping plastic is a discussion in its own right.

This post was modified 4 years ago by --
Posted : 06/10/2020 11:52 pm
Narceron
(@narceron)
New Member
Topic starter answered:
RE: Layer Shift, going to tighten the belts after self test results show less tension than recommended.

@tim-m30

How do I raise the temperature after the first layer? I'll need to research that procedure in the knowledge base.

 

Posted : 07/10/2020 12:28 am
Gordon W
(@gordon-w)
Reputable Member
RE: Layer Shift, going to tighten the belts after self test results show less tension than recommended.

@narceron

You do it in filament settings in slicer, not on the printer

Posted : 07/10/2020 10:13 am
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(@)
Illustrious Member
RE: Layer Shift, going to tighten the belts after self test results show less tension than recommended.

I usually come along after about a quarter inch or half centimeter of print is down and manually tweak the temp up to 65 or 70 for PLA when printing larger flat parts.  It's become a habit now as a preventative measure.  The TUNE menu has the settings you need. Or you can preset the temp rise here:

This post was modified 4 years ago 2 times by --
Posted : 07/10/2020 6:34 pm
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