Summary of "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)

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.
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.
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.
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.
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.
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.
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.
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.
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.
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.