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SoftFever / OrcaSlicer

G-code generator for 3D printers (Bambu, Prusa, Voron, VzBot, RatRig, Creality, etc.)
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GNU Affero General Public License v3.0
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Tree support ignores independent support layer height setting #5272

Open mfish38 opened 2 months ago

mfish38 commented 2 months ago

Is there an existing issue for this problem?

OrcaSlicer Version

2.0.0

Operating System (OS)

Windows

OS Version

Windows 10 Pro 22H2 64bit

Additional system information

CPU: i7 3930k Display Card: AMD Radeon RX 6900 XT

Printer

Any

How to reproduce

  1. Enable tree(auto) supports.
  2. Have "Independent support layer height" checked.
  3. Set a support "top z distance" that is not a multiple of the layer height.
  4. Slice
  5. Switch to orthographic view and use view widget to switch to side on view.
  6. Print

Actual results

Top Z distance in the sliced output will always be a multiple of the layer height. When printing the support will have zero top z distance and be impossible to remove, or be at least 1 layer and cause droop.

Here is 0.25 layer height with top z distance of 0.124. image

Here is 0.25 layer height with top z distance of 0.125. image

Expected results

Switching to normal(auto) supports shows correct behavior of having a support top z distance being independent of layer height. image

Project file & Debug log uploads

project_and_log.zip

Checklist of files to include

Anything else?

No response

poppinfresh69 commented 1 month ago

I'm seeing the same behavior with normal supports. 0.2mm layer, set top Z to 0.28 and rounds the gap up to 0.4. I can see in the preview that it stops the support and then prints two full .2 layers before printing the bridge.