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07-21-2015, 07:33 AM #11
- Join Date
- Oct 2013
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- 219
I think it does explain exactly that. This is quite difficult to explainpeachy.jpg
I hope my cr*p sketch explains it. And you must understand this is only a theory. But it does explain why it does not affect even columns. The effect of the surface tension is to delay Z. The printer is printing Z, but as there is no resin layer on the object, therefore this printing has no effect and these Z values are 'lost'. When wetting occurs, the old Z values are not re-printed and if the object is tapering, the new X,Y values are smaller than the x,y for lost Z values, thus creating a step.
With a cylindrical object, it doesn't matter about the lost Z values, because post wetting, the x, y values are the same and the resin is hardened without a step. I hope that makes sense, it is quite difficult to visualise.
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