Joseph Lenox b84be0deb5
Fix division by zero when min=max layer heights (#4672)
* #4670 Avoid a division by 0 crash if max_layer_height == min_layer_height (use scaling of 1.0).

* #4670 Limits -> Layer Height Limits

* Add config validation to Config.pm for adaptive slicing

* Also cover min_layer_height >= max_layer_height

* Correct logic for min/max layer height.
2019-01-05 18:45:59 -06:00
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