Biggest OrcaSlicer Update Yet? OrcaSlicer 2.3.2

Overview

Orca Slicer 2.3.2 is a major release with many new features, improvements, and quality‑of‑life changes. The video highlights the creator’s top items and includes test observations and suggested use cases.

Key features & changes (top items)

1. Smoother surface at seam transitions

   • Applies external perimeter acceleration to the short travel move before the outer wall to reduce vibrations at seams.
   • Enabled by default and adds no extra print time.
   • More noticeable on larger or less rigid machines; minimal change on very rigid test machines.

2. Bridging improvements

   • External bridge density cap increased from 100% to 120%, generating more lines for external bridge layers.
   • More line overlap plus flow/speed tuning can eliminate gaps. The tester increased line count from 86 → 102 on a small cylinder bridge model.

3. Multi-line infill rework

   • Paths no longer cross/intersect (reduces nozzle dragging); infill is now continuous and anchored to perimeters.
   • Implemented by integrating the Clipper 2 library.
   • Maximum “fill multi-line” value doubled (capped at 10). Results in improved strength and surface cleanliness.

4. Expanded per-feature flow control

   • New granular flow ratios (enable via Quality → Walls and Surface → “set other flow ratios”).
   • Allows independent flow settings for: first layer, outer/inner walls, overhangs, infill, gaps, supports.
   • Useful for dialing strength vs. surface quality.

5. Brim generation from compensated model

   • Option to generate a brim based on the elephant‑foot‑compensated model.
   • Fixes poor brim connectivity encountered when using elephant‑foot compensation.

6. Auto-slice after setting changes

   • Option to auto‑slice when settings change (Settings → Control). Configurable delay (default 1 s).
   • If you change settings while slicing, it cancels and re‑slices with the latest changes.

7. Instances (vs clones)

   • New “instance” object type: instances reference the same model data so edits propagate to all instances.
   • Instances slice faster than independent clones.
   • Create via right‑click → Add instance / Set number of instances / Fill plate with instances.

8. Prime/wipe tower improvements (multi-material)

   • Ported Bamboo Studio 2.5 wipe tower features:
     • Temperature boost for interface layers
     • Pre‑extrusion before interface
     • Optionally remove ironing on interface
     • Reduced infill speed after interface
     • Improved temperature boost/cooldown logic
   • Option to enable tower interface features and optionally cool down from the interface boost.

9. Calibration tool improvements

   • Calibration order simplified to top‑to‑bottom (no second‑guessing).
   • Better firmware detection for input shaping; expanded calibration support for Klipper, Marlin, RepRap.
   • Improved retraction testing visibility and increased temperature tower cap to 500 °C.

10. Modular printer agent system (experimental) - New agent system with support for third‑party AMS‑style units and printers. - Selectable agents include: Bamboo Lab, Orca, Moonraker, Cheaty, Snapmaker. - Enables filament sync from supported printers into Orca Slicer for smoother workflow. - Author tested with GDAX 4; plans to test Snapmaker U1 & Box Turtle.

Bonus items

• Bamboo Lab support: added support for H2D, H2D Pro, H2S (requires land mode & dev mode caveats). Check the Bamboo Lab changelog section for details.
• G-code preview overhaul: port from PrusaSlicer improves rendering quality.
  • Two new views show actual speed and volumetric flow versus theoretical values.
  • Updated G-code marker shows speed and feature with a detailed clickable popup for troubleshooting and tuning.

Testing notes & recommendations

• Reviewer ran side‑by‑side prints for seams and bridging; machine stiffness affects results noticeably.
• Multi‑line infill and expanded flow control are recommended for users who want to fine‑tune strength versus surface finish.
• Auto‑slice delay may need tuning for large or complex models to avoid frequent re-slicing.
• Use instances when you need to efficiently update large build plates—edits propagate to all instances and slicing is faster.

Other mentions

• Sponsor: Micros Swiss (drop‑in Flate hotends, wide nozzle selection) — brief product mention.
• Reviewer encourages reading the full 2.3.2 release page (including beta notes → final) to see all changes.

Speakers / sources

• Main speaker: Dano from Modbot (video author/reviewer).
• Project / contributors: Orca Slicer team (SoftFever) and nearly 100 contributors.
• Additional technology ports/ideas came from PrusaSlicer and Bamboo Studio.