OrcaSlicer 2.3.2-beta

What's Changed

This is OrcaSlicer V2.3.2 beta release. This release brings a major G-code viewer overhaul, support for new Bambu Lab printers, a modular printer agent architecture with filament sync for third-party AMS-style systems, significant infill quality improvements, a redesigned UI, and many more features and bug fixes.

The macOS build has been re-uploaded. If you experience a crash on startup, please download it again.

📢 Fresh Look for Wiki

We have moved the Wiki to a new page and repository

Wiki Page: www.orcaslicer.com/wiki/ ↗ Repo: github.com/OrcaSlicer/OrcaSlicer_WIKI ↗

This allows us to have a more enriched site, with simpler and faster collaboration without losing compatibility with GitHub's legacy wiki.

🌊 New Features & Improvements

Printing / Slicing

• Fine-tune flow rate for each print feature separately by @valerii-bokhan in github.com/OrcaSlicer/OrcaSlicer/pull/10641 ↗ — You can now adjust the flow rate independently for different parts of your print — first layer, outer walls, inner walls, overhangs, infill, gap fill, supports, and support interfaces. This is especially helpful for eliminating the "wrinkle effect" on outer walls when printing with very thin layers, without having to raise the temperature for the entire print.

flow-ratio-by-type

• Brim now follows Elephant Foot Compensation outline by @kisslorand in github.com/OrcaSlicer/OrcaSlicer/pull/11760 ↗ — A new option that generates the brim based on the adjusted first-layer shape after Elephant Foot Compensation (EFC) is applied. Without this, when EFC significantly reshapes the first layer, the brim may not actually touch the print — reducing bed adhesion. Enabling this option keeps the brim properly aligned with the adjusted first layer. Disabled by default; existing profiles are unaffected.

| EFC brim disabled | EFC brim enabled | | brim-disabled | brim-enabled |

• Ironing angle improvements by @ansonl in github.com/OrcaSlicer/OrcaSlicer/pull/11195, ↗ github.com/OrcaSlicer/OrcaSlicer/pull/10841 ↗ — Two improvements to ironing direction: a new "Fixed Ironing Angle" option keeps the ironing direction the same on every layer, eliminating the visible "tiger-striping" pattern on ironed surfaces. Additionally, the ironing angle setting is now a relative offset from the top surface fill direction rather than an absolute angle, making it more intuitive regardless of how infill rotation is configured.

ironing-angle

• Higher bridge density for better bridge surfaces by @MakeSometh1ngWonderful in github.com/OrcaSlicer/OrcaSlicer/pull/11283 ↗ — The maximum bridge density can now exceed 100%, allowing tighter spacing between bridge lines for better bonding and less sagging. Use lower flow rates with higher density for smoother bridge surfaces.

| Before | After | | bridge-before | bridge-after |

• Smoother spiral Z-hop on slower printers by @kisslorand in github.com/OrcaSlicer/OrcaSlicer/pull/11556 ↗ — Spiral Z-hop now adapts the number of movement segments (4–24) based on your slicing resolution, instead of always using 24. This reduces the processing load on printer boards, preventing communication issues on some budget controller boards.

• Limit shrinkage compensation to 90–110% by @ianalexis in github.com/OrcaSlicer/OrcaSlicer/pull/10930 ↗ — Shrinkage compensation values are now limited to a 90–110% range, preventing issues from accidentally entering extreme values — no common printing material shrinks more than 10%.

• Much smoother multiline infill paths by @RF47 in github.com/OrcaSlicer/OrcaSlicer/pull/11435 ↗ — A major quality improvement to multiline infill patterns. All multiline logic has been rebuilt for smoother, continuous extrusion with round corner transitions, no overlap issues, and clean intersections. The maximum multiline count has been increased to 10. Supported patterns include Triangles, Cubic, Adaptive Cubic, Quarter Cubic, Archimedean Chords, Concentric, Hilbert Curve, Octagram Spiral, Support Cubic, and Tri-Hexagon.

clipper2-infill clipper2-infill-2

• Multiline infill now connects to walls instead of floating by @RF47 in github.com/OrcaSlicer/OrcaSlicer/pull/11765 ↗ — Multiline infill lines now connect to the perimeter walls instead of to each other, greatly improving the strength of lightweight infill patterns like Lightning without affecting cubic/adaptive patterns.

| Before | After | | connect-before | connect-after |

• Smoother flow adjustments in small areas by @ianalexis in github.com/OrcaSlicer/OrcaSlicer/pull/11716 ↗ — The small area flow compensation now uses an improved curve calculation that prevents spike artifacts when values are closely spaced, and adds visible error reporting instead of silently failing.

| Before (spike artifact) | After (smooth) | | safc-before | safc-after |

• Fixed crashes and visual errors with multiline infill at high densities by @RF47 in github.com/OrcaSlicer/OrcaSlicer/pull/10967 ↗ — Prevents crashes when density × line count exceeds 100%, fixes the settings UI, and properly trims infill at wall boundaries.

| Before | After | | density-before | density-after |

• Smoother surface finish at seam transitions by @kisslorand in github.com/OrcaSlicer/OrcaSlicer/pull/10722 ↗ — OrcaSlicer now automatically slows down very short travel moves right before outer walls, using the outer wall acceleration and jerk values. This prevents fast travel movements from causing vibrations and surface marks at seam points — no configuration needed.