Trouble with larger prints sticking

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nebbian

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Ace67aod
So after i remeasure and compensate with the H parameter then i check zero after an auto-cal my paper snags at zero but HARDLY snags... So it seems almost as if this is still not enough to squish the first layer (usually only in the middle the skirt prints fine) is there something else i could be missing to make this happen?

I've never understood the advice to set the height at which paper just snags as 0. This doesn't take into account the thickness of the sheet of paper.

80 gsm paper (your normal printer paper) is pretty close to 0.1mm thick.

Hence the advice I received when calibrating, to set the height at which paper just snags to 0.1mm. If you calibrate your paper snagging height to 0, then the printer head will be 0.1mm too high, which will be especially noticeable on the first layer. If you calibrate to 0.1mm, then your print head will be at the proper height.


I hope this helps.

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dc42

Quote
nebbian
I've never understood the advice to set the height at which paper just snags as 0. This doesn't take into account the thickness of the sheet of paper.

80 gsm paper (your normal printer paper) is pretty close to 0.1mm thick.

Hence the advice I received when calibrating, to set the height at which paper just snags to 0.1mm. If you calibrate your paper snagging height to 0, then the printer head will be 0.1mm too high, which will be especially noticeable on the first layer. If you calibrate to 0.1mm, then your print head will be at the proper height.


I hope this helps.

If the printer mechanism were completely rigid and you used a 0.1mm thick metal plate instead of paper, that would be true. But there is elasticity in the belts and arms that mean that the commanded height needs to be under 0.1mm before it has any real grip on the paper.