Z Bottom cannot be above or equal to Z Top

[DrMoriarty]

I set Z Top as +15, and set Z Bottom as -15. When I try to Slice model it shows me an error: "Z Bottom cannot be above or equal to Z Top"

Version: 4.7.0

[stewartoallen]

I haven't been able to repro locally. can you share your workspace? File -> Export Workspace

[DrMoriarty]

I haven't been able to repro locally. can you share your workspace? File -> Export Workspace

When I try to reproduce the problem I found another one. Now my supporting tabs centering around top plane (not around center of my object).

My exported project:
workspace_marmot-cap-REV3-Pocket004.kmz.zip

[stewartoallen]

in the rough and outline ops you're overriding global z bottom with an op-specific z bottom but not also setting the z top in the op to be higher. so that's causing the error message. in your screenshot, global z top is negative and global z bottom is positive. that would also trigger this if the op error didn't happen first. this is different from your first screenshot where they are inverted.

i do see a bug with tab inversion in indexed mode, and that's because flipping is supposed to be disabled in indexed mode (the 4th axis is the way to rotate the part). flip is meant only for 3 axis mode where you use tool holding for double-sided milling

[DrMoriarty]

Thank you. I thought what ops specific top/bottom overrides are additional offset for plane correcting, not an absolute value. So I didn't checked it.

Also I used indexed mode because I can not place supporting tabs on the correct place. When indexed are off and tabs are Midline they placed around bottom plane and half of tab is below my object. So I enabled indexed mode to place my object the same way.

So my very first problem looks like this:

I tried to place tabs at the midline of my object but no luck.