diff --git a/BUILD.md b/BUILD.md
deleted file mode 100644
index 6d5920c6c0..0000000000
--- a/BUILD.md
+++ /dev/null
@@ -1,202 +0,0 @@
-# Building OrcaSlicer with ZAA on macOS
-
-A step-by-step guide to building OrcaSlicer from source on macOS. No prior experience with building software required.
-
-## What You'll Need
-
-- A Mac running macOS 11.3 (Big Sur) or later
-- About 15 GB of free disk space
-- An internet connection
-- About 1-2 hours for the first build (mostly waiting)
-
-## Step 1: Open Terminal
-
-Press **Cmd + Space**, type **Terminal**, and press Enter. A window with a command prompt will appear. All commands below are typed into this window.
-
-## Step 2: Install Xcode Command Line Tools
-
-This installs the compiler and basic development tools.
-
-```bash
-xcode-select --install
-```
-
-A dialog will pop up. Click **Install** and wait for it to finish (a few minutes).
-
-To verify it worked:
-
-```bash
-xcode-select -p
-git --version
-```
-
-You should see a path like `/Library/Developer/CommandLineTools` and a git version. Both git and the C++ compiler are included in the Command Line Tools.
-
-## Step 3: Install Homebrew
-
-[Homebrew](https://brew.sh) is a package manager that makes it easy to install developer tools on macOS.
-
-```bash
-/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
-```
-
-Follow the prompts. When it finishes, it will tell you to run one or two commands to add Homebrew to your PATH. **Run those commands** — they look something like:
-
-```bash
-echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> ~/.zprofile
-eval "$(/opt/homebrew/bin/brew shellenv)"
-```
-
-To verify:
-
-```bash
-brew --version
-```
-
-## Step 4: Install CMake
-
-CMake is the build system OrcaSlicer uses.
-
-```bash
-brew install cmake
-```
-
-To verify:
-
-```bash
-cmake --version
-```
-
-You need version 3.13 or later (anything recent from Homebrew will work).
-
-## Step 5: Clone the Repository
-
-Choose where you want the source code. For example, in your home directory:
-
-```bash
-cd ~
-git clone https://github.com/mnott/OrcaSlicer.git
-cd OrcaSlicer
-```
-
-If you want the ZAA feature branch:
-
-```bash
-git checkout feature/zaa-contouring
-```
-
-## Step 6: Build
-
-The `build.sh` script handles everything. For a first-time build:
-
-```bash
-chmod +x build.sh
-./build.sh --full
-```
-
-This does three things:
-1. **Builds dependencies** (Boost, wxWidgets, OpenSSL, etc.) — takes 30-60 minutes the first time
-2. **Configures CMake** — sets up the build system
-3. **Builds OrcaSlicer** — compiles the application
-
-Go get a coffee. The dependency step only needs to run once.
-
-### After the first build
-
-For subsequent builds (after making code changes), just run:
-
-```bash
-./build.sh
-```
-
-This does an incremental build — only recompiles what changed. Usually takes 1-5 minutes.
-
-### Other build options
-
-```bash
-./build.sh --help       # Show all options
-./build.sh --clean      # Clean rebuild (if something is broken)
-./build.sh --deps       # Rebuild dependencies only
-./build.sh --configure  # Reconfigure CMake only
-```
-
-## Step 7: Run OrcaSlicer
-
-After a successful build, the script prints the app location. You can run it with:
-
-```bash
-open build/arm64/src/RelWithDebInfo/OrcaSlicer.app
-```
-
-Or find `OrcaSlicer.app` in Finder and double-click it.
-
-## Troubleshooting
-
-### "CMake not found"
-
-Make sure Homebrew is in your PATH (see Step 3), then `brew install cmake`.
-
-### "No rule to make target" or CMake generator errors
-
-Your build directory may have been configured with a different generator. Clean and reconfigure:
-
-```bash
-./build.sh --clean --full
-```
-
-### Build fails during dependencies
-
-Some deps need a lot of memory. Close other applications and try again. If a specific dependency fails, check if you have the latest Xcode Command Line Tools:
-
-```bash
-softwareupdate --list
-```
-
-### wxWidgets "hardcoded path" errors
-
-wxWidgets bakes the installation path into its config files. If you move the source directory after building deps, you need to rebuild them:
-
-```bash
-./build.sh --deps
-./build.sh --clean
-```
-
-### "Permission denied" on build.sh
-
-```bash
-chmod +x build.sh
-```
-
-### Apple Silicon (M1/M2/M3/M4) vs Intel
-
-The build script auto-detects your architecture. If you need to specify it explicitly:
-
-```bash
-./build.sh --full --arch arm64    # Apple Silicon
-./build.sh --full --arch x86_64   # Intel
-```
-
-## Project Structure
-
-```
-OrcaSlicer/
-├── src/
-│   ├── libslic3r/        # Core slicing engine
-│   │   ├── ContourZ.cpp  # ZAA raycasting algorithm
-│   │   └── ...
-│   └── slic3r/GUI/       # User interface
-├── deps/                  # External dependencies
-├── build/                 # Build output (created by build.sh)
-│   └── arm64/
-│       └── src/RelWithDebInfo/
-│           └── OrcaSlicer.app
-├── docs/
-│   └── ZAA.md            # ZAA feature documentation
-├── build.sh              # Build script (this guide uses it)
-├── BUILD.md              # This file
-└── build_release_macos.sh  # Official release build script
-```
-
-## ZAA (Z Anti-Aliasing)
-
-See [docs/ZAA.md](docs/ZAA.md) for details on the Z Anti-Aliasing feature. In short: enable **Z contouring** in Print Settings > Quality to get smoother curved surfaces.
diff --git a/build.sh b/build.sh
deleted file mode 100755
index 42332937b3..0000000000
--- a/build.sh
+++ /dev/null
@@ -1,207 +0,0 @@
-#!/usr/bin/env bash
-# OrcaSlicer Build Script (macOS)
-# Handles the full build lifecycle: deps, configure, build
-#
-# Usage:
-#   ./build.sh              # Incremental build (after initial setup)
-#   ./build.sh --full       # Full build from scratch (deps + configure + build)
-#   ./build.sh --deps       # Build dependencies only
-#   ./build.sh --configure  # Run CMake configure only
-#   ./build.sh --clean      # Remove build dir and rebuild
-#   ./build.sh --help       # Show all options
-
-set -e
-set -o pipefail
-
-# ── Configuration ──────────────────────────────────────────────
-
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-ARCH="${ARCH:-$(uname -m)}"
-BUILD_CONFIG="${BUILD_CONFIG:-RelWithDebInfo}"
-OSX_DEPLOYMENT_TARGET="${OSX_DEPLOYMENT_TARGET:-11.3}"
-NCPU=$(sysctl -n hw.ncpu 2>/dev/null || echo 4)
-
-BUILD_DIR="${SCRIPT_DIR}/build/${ARCH}"
-DEPS_DIR="${SCRIPT_DIR}/deps"
-DEPS_BUILD_DIR="${DEPS_DIR}/build/${ARCH}"
-DEPS_INSTALL_DIR="${DEPS_BUILD_DIR}/OrcaSlicer_dep"
-
-# CMake 4.x compatibility
-CMAKE_VERSION=$(cmake --version 2>/dev/null | head -1 | sed 's/[^0-9]*\([0-9]*\).*/\1/')
-CMAKE_COMPAT=""
-if [ "${CMAKE_VERSION:-3}" -ge 4 ] 2>/dev/null; then
-    CMAKE_COMPAT="-DCMAKE_POLICY_VERSION_MINIMUM=3.5"
-fi
-
-# ── Colors ─────────────────────────────────────────────────────
-
-GREEN='\033[0;32m'
-YELLOW='\033[1;33m'
-RED='\033[0;31m'
-BLUE='\033[0;34m'
-BOLD='\033[1m'
-NC='\033[0m'
-
-info()  { echo -e "${BLUE}▸${NC} $*"; }
-ok()    { echo -e "${GREEN}✓${NC} $*"; }
-warn()  { echo -e "${YELLOW}⚠${NC} $*"; }
-err()   { echo -e "${RED}✗${NC} $*"; }
-
-# ── Parse Arguments ────────────────────────────────────────────
-
-DO_DEPS=false
-DO_CONFIGURE=false
-DO_BUILD=true
-DO_CLEAN=false
-DO_FULL=false
-
-while [[ $# -gt 0 ]]; do
-    case $1 in
-        --full)       DO_FULL=true; shift ;;
-        --deps)       DO_DEPS=true; DO_BUILD=false; shift ;;
-        --configure)  DO_CONFIGURE=true; DO_BUILD=false; shift ;;
-        --clean)      DO_CLEAN=true; shift ;;
-        --arch)       ARCH="$2"; shift 2 ;;
-        --config)     BUILD_CONFIG="$2"; shift 2 ;;
-        --help|-h)
-            echo "OrcaSlicer Build Script (macOS)"
-            echo ""
-            echo "Usage: $0 [OPTIONS]"
-            echo ""
-            echo "Build modes:"
-            echo "  (no flags)     Incremental build (fastest, use after initial setup)"
-            echo "  --full         Full build from scratch: deps → configure → build"
-            echo "  --deps         Build dependencies only (takes 30-60 min first time)"
-            echo "  --configure    Run CMake configure only"
-            echo "  --clean        Remove build directory, then rebuild"
-            echo ""
-            echo "Options:"
-            echo "  --arch ARCH    Architecture: arm64, x86_64 (default: $(uname -m))"
-            echo "  --config CFG   Build config: Release, RelWithDebInfo, Debug"
-            echo "                 (default: RelWithDebInfo)"
-            echo ""
-            echo "Examples:"
-            echo "  $0 --full            # First-time build (do this first!)"
-            echo "  $0                   # Quick rebuild after code changes"
-            echo "  $0 --clean           # Clean rebuild if something is broken"
-            echo ""
-            echo "Prerequisites: Xcode Command Line Tools, CMake 3.13+"
-            echo "  xcode-select --install"
-            echo "  brew install cmake"
-            exit 0
-            ;;
-        *)
-            err "Unknown option: $1 (use --help)"
-            exit 1
-            ;;
-    esac
-done
-
-# --full implies all steps
-if [ "$DO_FULL" = true ]; then
-    DO_DEPS=true
-    DO_CONFIGURE=true
-    DO_BUILD=true
-fi
-
-# ── Preflight Checks ──────────────────────────────────────────
-
-echo ""
-echo -e "${BOLD}OrcaSlicer Build${NC}"
-echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
-echo "  Architecture:  ${ARCH}"
-echo "  Config:        ${BUILD_CONFIG}"
-echo "  CPU cores:     ${NCPU}"
-echo "  CMake:         $(cmake --version 2>/dev/null | head -1 || echo 'NOT FOUND')"
-[ -n "$CMAKE_COMPAT" ] && echo "  CMake compat:  4.x → policy 3.5"
-echo ""
-
-# Check prerequisites
-if ! command -v cmake &>/dev/null; then
-    err "CMake not found. Install it with: brew install cmake"
-    exit 1
-fi
-
-if ! command -v git &>/dev/null; then
-    err "Git not found. Install Xcode Command Line Tools: xcode-select --install"
-    exit 1
-fi
-
-if ! xcode-select -p &>/dev/null; then
-    err "Xcode Command Line Tools not found. Install: xcode-select --install"
-    exit 1
-fi
-
-# ── Clean ──────────────────────────────────────────────────────
-
-if [ "$DO_CLEAN" = true ]; then
-    warn "Removing build directory: ${BUILD_DIR}"
-    rm -rf "${BUILD_DIR}"
-    ok "Clean complete"
-    echo ""
-fi
-
-# ── Build Dependencies ─────────────────────────────────────────
-
-if [ "$DO_DEPS" = true ]; then
-    info "Building dependencies (this takes a while the first time)..."
-    mkdir -p "${DEPS_INSTALL_DIR}"
-    cd "${DEPS_BUILD_DIR}"
-
-    cmake "${DEPS_DIR}" \
-        -G "Unix Makefiles" \
-        -DCMAKE_BUILD_TYPE="${BUILD_CONFIG}" \
-        -DCMAKE_OSX_ARCHITECTURES:STRING="${ARCH}" \
-        -DCMAKE_OSX_DEPLOYMENT_TARGET="${OSX_DEPLOYMENT_TARGET}" \
-        ${CMAKE_COMPAT}
-
-    cmake --build . --config "${BUILD_CONFIG}" --target deps -j"${NCPU}"
-
-    ok "Dependencies built"
-    echo ""
-fi
-
-# ── Configure ──────────────────────────────────────────────────
-
-if [ "$DO_CONFIGURE" = true ] || { [ "$DO_BUILD" = true ] && [ ! -f "${BUILD_DIR}/Makefile" ] && [ ! -f "${BUILD_DIR}/build.ninja" ]; }; then
-    info "Configuring CMake..."
-    mkdir -p "${BUILD_DIR}"
-    cd "${BUILD_DIR}"
-
-    cmake "${SCRIPT_DIR}" \
-        -G "Unix Makefiles" \
-        -DCMAKE_BUILD_TYPE="${BUILD_CONFIG}" \
-        -DCMAKE_OSX_ARCHITECTURES="${ARCH}" \
-        -DCMAKE_OSX_DEPLOYMENT_TARGET="${OSX_DEPLOYMENT_TARGET}" \
-        ${CMAKE_COMPAT}
-
-    ok "CMake configured"
-    echo ""
-fi
-
-# ── Build ──────────────────────────────────────────────────────
-
-if [ "$DO_BUILD" = true ]; then
-    if [ ! -d "${BUILD_DIR}" ]; then
-        err "Build directory not found: ${BUILD_DIR}"
-        err "Run '$0 --full' for a first-time build"
-        exit 1
-    fi
-
-    info "Building OrcaSlicer..."
-    cd "${SCRIPT_DIR}"
-
-    cmake --build "${BUILD_DIR}" \
-        --config "${BUILD_CONFIG}" \
-        --target OrcaSlicer \
-        -j"${NCPU}"
-
-    echo ""
-    echo -e "${GREEN}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
-    ok "Build complete!"
-    echo ""
-    echo "  App: ${BUILD_DIR}/src/${BUILD_CONFIG}/OrcaSlicer.app"
-    echo ""
-    echo "  Run: open \"${BUILD_DIR}/src/${BUILD_CONFIG}/OrcaSlicer.app\""
-    echo -e "${GREEN}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
-fi
diff --git a/docs/ZAA.md b/docs/ZAA.md
deleted file mode 100644
index dbeecc6548..0000000000
--- a/docs/ZAA.md
+++ /dev/null
@@ -1,41 +0,0 @@
-# Z Anti-Aliasing (ZAA) — Z Contouring
-
-ZAA eliminates stair-stepping on curved and sloped top surfaces by adjusting the Z height of each extrusion point to follow the actual 3D model surface.
-
-Instead of printing flat horizontal layers, ZAA raycasts each point of the toolpath against the original mesh and micro-adjusts its Z coordinate to match the true surface geometry. The result is visibly smoother surfaces on domes, chamfers, and shallow slopes — without post-processing.
-
-This is a port of the ZAA implementation from [BambuStudio-ZAA](https://github.com/adob/BambuStudio-ZAA) by adob.
-
-## Configuration
-
-ZAA adds five settings under **Print Settings > Quality**:
-
-| Setting | Type | Default | Description |
-|---------|------|---------|-------------|
-| `zaa_enabled` | bool | off | Master enable/disable switch |
-| `zaa_min_z` | float | 0.06 mm | Minimum Z layer height; also controls the slicing plane offset |
-| `zaa_minimize_perimeter_height` | float | 35° | Reduce perimeter heights on slopes below this angle (0 = disabled) |
-| `zaa_dont_alternate_fill_direction` | bool | off | Keep fill direction consistent instead of alternating per layer |
-| `zaa_region_disable` | bool | off | Disable ZAA for a specific print region/material |
-
-## How It Works
-
-1. The slicer slices normally, then runs a **posContouring** step on each layer.
-2. `ContourZ.cpp` raycasts every extrusion point vertically against the source mesh.
-3. Each point's Z is adjusted to the mesh intersection, converting flat `Polyline` paths into `Polyline3` paths that carry per-point Z coordinates.
-4. The G-code writer emits the adjusted Z values, so the printer follows the true surface.
-
-## Key Implementation Details
-
-- **Core algorithm**: `src/libslic3r/ContourZ.cpp` (~330 lines)
-- **3D geometry**: `Point3`, `Line3`, `Polyline3`, `MultiPoint3` extend the existing 2D types
-- **Pipeline step**: `posContouring` in `PrintObject.cpp`, runs after perimeter/infill generation
-- **G-code output**: `GCode.cpp` writes per-point Z when `path.z_contoured` is set
-- **Arc fitting**: Templated to work with both 2D and 3D geometry
-- **ExtrusionPath change**: `polyline` field changed from `Polyline` to `Polyline3`
-
-## Testing
-
-1. Load a model with curved top surfaces (spheres, domes, chamfered edges)
-2. Enable **Z contouring** in Print Settings > Quality
-3. Slice and inspect the G-code — Z values should vary within each layer on contoured surfaces
diff --git a/src/libslic3r/ContourZ.cpp b/src/libslic3r/ContourZ.cpp
index 13a266573f..0182b35aad 100644
--- a/src/libslic3r/ContourZ.cpp
+++ b/src/libslic3r/ContourZ.cpp
@@ -15,49 +15,25 @@ namespace Slic3r {
 
 static void contour_extrusion_entity(LayerRegion *region, const sla::IndexedMesh &mesh, ExtrusionEntity *extr);
 
-// static double lowest_z_within_distance(const Vec3d &normal, double dist) {
-// 	const Vec3d p(0.0, 0.0, 0.0);
-// 	Eigen::Vector3d n_unit = normal.normalized();
-//     Eigen::Vector3d z_hat(0.0, 0.0, 1.0);
-
-//     // Project the negative z-direction into the tangent plane
-//     Eigen::Vector3d v_dir = -z_hat + (z_hat.dot(n_unit)) * n_unit;
-
-//     double norm_v = v_dir.norm();
-//     if (norm_v == 0.0) {
-//         // Surface is horizontal, cannot go lower in z within tangent plane
-//         return p.z();
-//     }
-
-//     Eigen::Vector3d v = dist * v_dir / norm_v;
-//     Eigen::Vector3d q = p + v;
-// 	return q.z();
-// }
-
-static double follow_slope_down(double angle_rad, double dist) {
+static double follow_slope_down(double angle_rad, double dist)
+{
 	return -dist * std::sin(angle_rad);
 }
 
-static double slope_from_normal(const Eigen::Vector3d& normal) {
+static double slope_from_normal(const Eigen::Vector3d& normal)
+{
     // Ensure the normal is normalized
     Eigen::Vector3d n = normal.normalized();
 
     // Compute angle between normal and z-axis
     double angle_rad = std::acos(std::abs(n.z()));  // angle between normal and vertical
 	return angle_rad;
-
-	// calculate fall over dist
-	// double dist = 0.2;
-	// double z_dist = lowest_z(angle_rad, dist);
-	// printf("fall %f vs %f\n", z_dist, lowest_z_within_distance(normal, dist));
-
-    // double angle_deg = angle_rad * 180.0 / M_PI;
-    // return angle_deg;
 }
 
 // const int LINE = 180;
 
-static bool contour_extrusion_path(LayerRegion *region, const sla::IndexedMesh &mesh, ExtrusionPath &path) {
+static bool contour_extrusion_path(LayerRegion *region, const sla::IndexedMesh &mesh, ExtrusionPath &path)
+{
 	if (region->region().config().zaa_region_disable) {
 		return false;
 	}
@@ -74,19 +50,11 @@ static bool contour_extrusion_path(LayerRegion *region, const sla::IndexedMesh &
 	double resolution_mm = 0.1;
 
 	coordf_t height = layer->height;
-	// std::cout << "LAYER " << (layer->id()+1) << std::endl;
-	// std::cout << "PRINT Z " << layer->print_z << std::endl;
-	// std::cout << "LAYER HEIGHT " << height << std::endl;
-	// std::cout << "EXTRUSION HEIGHT " << path.height << std::endl;
-	// std::cout << "EXTRUSION WIDTH " << path.width << std::endl;
-	// std::cout << "EXTRUSION ROLE: " << ExtrusionEntity::role_to_string(path.role()) << std::endl;
-	// std::cout << "FIRST POINT: " << path.polyline.first_point() << std::endl;
 
 	double minimize_perimeter_height_angle = region->region().config().zaa_minimize_perimeter_height;
 
 	Pointf3s contoured_points;
 	bool was_contoured = false;
-	// bool is_perimeter = path.role() == erExternalPerimeter || path.role() == erPerimeter || path.role() == erOverhangPerimeter;
 
 	for (Points3::const_iterator it = points.begin(); it != points.end()-1; ++it) {
 		Vec2d p1d(unscale_(it->x()), unscale_(it->y()));
@@ -195,13 +163,15 @@ static void contour_extrusion_loop(LayerRegion *region, const sla::IndexedMesh &
 	}
 }
 
-static void contour_extrusion_entitiy_collection(LayerRegion *region, const sla::IndexedMesh &mesh, ExtrusionEntityCollection &collection) {
+static void contour_extrusion_entitiy_collection(LayerRegion *region, const sla::IndexedMesh &mesh, ExtrusionEntityCollection &collection)
+{
 	for (ExtrusionEntity *entity : collection.entities) {
 		contour_extrusion_entity(region, mesh, entity);
 	}
 }
 
-static void contour_extrusion_entity(LayerRegion *region, const sla::IndexedMesh &mesh, ExtrusionEntity *extr) {
+static void contour_extrusion_entity(LayerRegion *region, const sla::IndexedMesh &mesh, ExtrusionEntity *extr)
+{
 	const ExtrusionPathSloped *sloped = dynamic_cast<const ExtrusionPathSloped*>(extr);
 	if (sloped != nullptr) {
 		throw RuntimeError("ExtrusionPathSloped not implemented");
@@ -253,81 +223,11 @@ static void handle_extrusion_collection(LayerRegion *region, const sla::IndexedM
 	}
 }
 
-// static void find_point(ExtrusionPath &path, const std::string &path_info) { 
-// 	Points3 &points = path.polyline.points;
-
-// 	size_t i = 0;
-// 	for (Points3::const_iterator it = points.begin(); it != points.end()-1; ++it) {
-// 		if (it->x() == -883971 && it->y() == 979001) {
-// 			std::cout << "FOUND POINT " << ExtrusionEntity::role_to_string(path.role()) << " at path " << path_info << "[" + std::to_string(i) + "]" << std::endl;
-// 		}
-// 		i++;
-// 	}
-// }
-
-// static void find_point(ExtrusionLoop &loop, const std::string &path_info) { 
-// 	size_t i = 0;
-// 	for (ExtrusionPath &path : loop.paths) {
-// 		find_point(path, path_info + "[" + std::to_string(i) + "]");
-// 		i++;
-// 	}
-// }
-
-// static void find_point(ExtrusionEntity &extr, const std::string &path);
-
-// static void find_point(ExtrusionEntityCollection &collection, const std::string &path) {
-// 	size_t i = 0;
-// 	for (ExtrusionEntity *extr : collection.entities) {
-// 		find_point(*extr, path + "[" + std::to_string(i) + "]");
-// 		i++;
-// 	}
-// }
-
-// static void find_point(ExtrusionEntity &extr, const std::string &path_info) { 
-// 	const ExtrusionPathSloped *sloped = dynamic_cast<const ExtrusionPathSloped*>(&extr);
-// 	if (sloped != nullptr) {
-// 		throw RuntimeError("ExtrusionPathSloped not implemented");
-// 		return;
-// 	}
-
-// 	ExtrusionPath *path = dynamic_cast<ExtrusionPath*>(&extr);
-// 	if (path != nullptr) {
-// 		find_point(*path, path_info + " as ExtrusionPath " + ExtrusionEntity::role_to_string(extr.role()));
-// 		return;
-// 	}
-
-// 	ExtrusionLoop *loop = dynamic_cast<ExtrusionLoop*>(&extr);
-// 	if (loop != nullptr) {
-// 		find_point(*loop, path_info + " as ExtrusionLoop " + ExtrusionEntity::role_to_string(extr.role()));
-// 		return;
-// 	}
-
-// 	const ExtrusionLoopSloped *loop_sloped = dynamic_cast<const ExtrusionLoopSloped*>(&extr);
-// 	if (loop_sloped != nullptr) {
-// 		throw RuntimeError("ExtrusionLoopSloped not implemented");
-// 		return;
-// 	}
-
-// 	ExtrusionEntityCollection *collection = dynamic_cast<ExtrusionEntityCollection*>(&extr);
-// 	if (collection != nullptr) {
-// 		find_point(*collection, path_info + " as ExtrusionEntityCollection " + ExtrusionEntity::role_to_string(extr.role()));
-// 		return;
-// 	}
-
-// 	throw RuntimeError("ContourZ: ExtrusionEntity type not implemented");
-// 	return;
-// }
-
 void Layer::make_contour_z(const sla::IndexedMesh &mesh)
 {
-	// printf("make_contour_z() called\n");
 	for (LayerRegion *region : this->regions()) {
-		// printf("processing layer region %p\n", region);
-		// find_point(region->fills, "fills");
-		// find_point(region->perimeters, "perimeters");
-
 		handle_extrusion_collection(region, mesh, region->fills, {erTopSolidInfill, erIroning, erExternalPerimeter, erMixed});
 		handle_extrusion_collection(region, mesh, region->perimeters, {erExternalPerimeter, erMixed});
 	}
 }
-} // namespace Slic3r
\ No newline at end of file
+} // namespace Slic3r
diff --git a/version.inc b/version.inc
index 86d3759e73..d6c6b293b3 100644
--- a/version.inc
+++ b/version.inc
@@ -8,7 +8,6 @@ if(NOT DEFINED BBL_INTERNAL_TESTING)
 set(BBL_INTERNAL_TESTING "0")
 endif()
 set(SoftFever_VERSION "2.3.2-dev")
-set(ZAA_VERSION "1.0.3")
 string(REGEX MATCH "^([0-9]+)\\.([0-9]+)\\.([0-9]+)"
        SoftFever_VERSION_MATCH ${SoftFever_VERSION})
 set(ORCA_VERSION_MAJOR ${CMAKE_MATCH_1})