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First layer support height?

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Using CURA 2.4 Beta - Need to set support first layer to a lower value than 0.12mm. Model first layer set to 0.1mm but support first layer is aparently locked to 0.12 at the lowest. so what ends up happening is it doesn't lay support around the model mesh, only the support itself, and skips the first layers of the model and doesn't lay a brim for it, it only lays a brim for the support structure itself. This means the model is not touching the plate, even though the mesh is. Can't find the setting to tell it that I need support first layer to be 0.1mm too. Where is this setting? They are all visible and I've gone up and down this pannel. Can't find it. Before CURA 2, it understood that all first layer extrusions were the same height. What's changed? Is there a minimum support layer height setting? I realize they're trying to do as much as they can without you giving input. But I have very specific scenarios that need me to tell it to do unorthadoxed operations. I don't like the slicer trying to do things for me, the veteran user knows better in these cases.

Edited by Guest

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I believe I listed most of that in the post. Also, lower support distance referrs to it being on top of the mesh, not the plate, and interface is the top, neither of which have anything to do with this particular situation. Its the first layer, the very first layer of the print. And this is with any model needing first layer of under .12mm.

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