First Layer height & dynamic layer heights

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shifting
Posts: 1
Joined: 27 Apr 2020, 16:04

First Layer height & dynamic layer heights

Post by shifting »

I believe I've run into two small bugs in 1.6.3 surrounding first layer.

I'm using dynamic layer height. extrusion width 0.4mm, layer thickness min 25%,max 50%, first layer 50%.

Now, when I slice a set of parts with these settings, the objects end up with a bunch of slightly different first layer heights, ranging from 0.199 to 0.206.

so. First bug: 0.199 is less than my first layer height, and 0.206 is larger than my max layer height, so there's something weird going on there to begin with.

second bug: I have first layer extrusion temperature set to 270, and the rest at 260. It seems the temperature is dropping too soon. Only that very first part, the one that's got a 0.199 first layer is actually getting printed at 270. As soon as it moves on to the first layer of the second part (layer height 0.200) the temperature is dropping to 260.
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