diff --git a/.gitignore b/.gitignore
index a225919..d39ee17 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /*output
 *.goo
 *.stl
+codebook.toml
diff --git a/Cargo.lock b/Cargo.lock
index cf82bd8..8588691 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4491,11 +4491,13 @@ name = "slicer"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "clap",
  "common",
  "criterion",
  "goo_format",
  "image 0.25.1",
  "nalgebra 0.32.6",
+ "num-traits",
  "obj-rs",
  "ordered-float",
  "parking_lot",
diff --git a/Cargo.toml b/Cargo.toml
index 664a50a..46be9f1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,6 +29,7 @@ markdown = "0.3.0"
 md5 = "0.7.0"
 nalgebra = { version = "0.32.6", features = ["serde-serialize"] }
 notify-rust = "4.11.0"
+num-traits = "0.2.19"
 obj-rs = "0.7.1"
 open = "5.3.0"
 ordered-float = "4.2.0"
diff --git a/slicer/Cargo.toml b/slicer/Cargo.toml
index a90315e..7d2cf92 100644
--- a/slicer/Cargo.toml
+++ b/slicer/Cargo.toml
@@ -5,8 +5,10 @@ edition = "2021"
 
 [dependencies]
 anyhow.workspace = true
+clap.workspace = true
 image.workspace = true
 nalgebra.workspace = true
+num-traits.workspace = true
 obj-rs.workspace = true
 ordered-float.workspace = true
 parking_lot.workspace = true
diff --git a/slicer/src/args.rs b/slicer/src/args.rs
new file mode 100644
index 0000000..8ebfd4c
--- /dev/null
+++ b/slicer/src/args.rs
@@ -0,0 +1,136 @@
+use std::{path::PathBuf, str::FromStr};
+
+use anyhow::{Context, Ok, Result};
+use clap::Parser;
+use common::{
+    config::{ExposureConfig, SliceConfig},
+    format::Format,
+};
+use nalgebra::{ArrayStorage, Const, Matrix, Scalar, Vector2, Vector3, U1};
+use num_traits::Zero;
+
+#[derive(Debug, Parser)]
+/// mslicer command line interface.
+pub struct Args {
+    #[arg(long, default_value = "11520, 5120", value_parser = vector_value_parser::<u32, 2>, )]
+    /// Resolution of the printer mask display in pixels.
+    pub platform_resolution: Vector2<u32>,
+    #[arg(long, default_value = "218.88, 122.904, 260.0", value_parser = vector_value_parser::<f32, 3>)]
+    /// Size of the printer display / platform in mm.
+    pub platform_size: Vector3<f32>,
+    #[arg(long, default_value_t = 0.05)]
+    /// Layer height in mm.
+    pub layer_height: f32,
+    #[arg(long, default_value_t = 3)]
+    /// Number of 'first layers'. These are layers that obey the --first-
+    /// exposure config flags.
+    pub first_layers: u32,
+    #[arg(long, default_value_t = 10)]
+    /// Number of transition layers. These are layers that interpolate from the
+    /// first layer config to the default config.
+    pub transition_layers: u32,
+
+    #[arg(long, default_value_t = 3.0)]
+    /// Layer exposure time in seconds.
+    pub exposure_time: f32,
+    #[arg(long, default_value_t = 5.0)]
+    /// Distance to lift the platform after exposing each regular layer, in mm.
+    pub lift_distance: f32,
+    #[arg(long, default_value_t = 65.0)]
+    /// The speed to lift the platform after exposing each regular layer, in
+    /// mm/min.
+    pub lift_speed: f32,
+    #[arg(long, default_value_t = 150.0)]
+    /// The speed to retract (move down) the platform after exposing each
+    /// regular layer, in mm/min.
+    pub retract_speed: f32,
+
+    #[arg(long, default_value_t = 30.0)]
+    /// First layer exposure time in seconds.
+    pub first_exposure_time: f32,
+    #[arg(long, default_value_t = 5.0)]
+    /// Distance to lift the platform after exposing each first layer, in mm.
+    pub first_lift_distance: f32,
+    #[arg(long, default_value_t = 65.0)]
+    /// The speed to lift the platform after exposing each first layer, in
+    /// mm/min.
+    pub first_lift_speed: f32,
+    #[arg(long, default_value_t = 150.0)]
+    /// The speed to retract (move down) the platform after exposing each first
+    /// layer, in mm/min.
+    pub first_retract_speed: f32,
+
+    #[command(flatten)]
+    pub model: ModelArgs,
+
+    /// File to save sliced result to. Currently only .goo files can be
+    /// generated.
+    pub output: PathBuf,
+}
+
+#[derive(clap::Args, Debug)]
+#[group(required = true)]
+pub struct ModelArgs {
+    /// Path to a .stl or .obj file
+    pub mesh: PathBuf,
+
+    #[arg(long, default_value = "0, 0, 0", value_parser = vector_value_parser::<f32, 3>)]
+    /// Location of the bottom center of model bounding box. The origin is the
+    /// center of the build plate.
+    pub position: Vector3<f32>,
+
+    #[arg(long, default_value = "0, 0, 0", value_parser = vector_value_parser::<f32, 3>)]
+    /// Rotation of the model in degrees, pitch, roll, yaw.
+    pub rotation: Vector3<f32>,
+
+    #[arg(long, default_value = "1, 1, 1", value_parser = vector_value_parser::<f32, 3>)]
+    /// Scale of the model along the X, Y, and Z axes.
+    pub scale: Vector3<f32>,
+}
+
+impl Args {
+    pub fn slice_config(&self) -> SliceConfig {
+        SliceConfig {
+            format: Format::Goo,
+            platform_resolution: self.platform_resolution,
+            platform_size: self.platform_size,
+            slice_height: self.layer_height,
+            exposure_config: ExposureConfig {
+                exposure_time: self.exposure_time,
+                lift_distance: self.lift_distance,
+                lift_speed: self.lift_speed,
+                retract_distance: self.lift_distance,
+                retract_speed: self.retract_speed,
+            },
+            first_exposure_config: ExposureConfig {
+                exposure_time: self.first_exposure_time,
+                lift_distance: self.first_lift_distance,
+                lift_speed: self.first_lift_speed,
+                retract_distance: self.first_lift_distance,
+                retract_speed: self.first_retract_speed,
+            },
+            first_layers: self.first_layers,
+            transition_layers: self.transition_layers,
+        }
+    }
+}
+
+pub fn vector_value_parser<T, const N: usize>(
+    raw: &str,
+) -> Result<Matrix<T, Const<N>, U1, ArrayStorage<T, N, 1>>>
+where
+    T: FromStr + Scalar + Zero,
+    T::Err: Send + Sync + std::error::Error,
+{
+    let mut vec = Matrix::<T, Const<N>, U1, ArrayStorage<T, N, 1>>::zeros();
+
+    let mut parts = raw.splitn(N, ',');
+    for i in 0..N {
+        let element = parts.next().context("Missing vector element")?.trim();
+        vec[i] = element
+            .parse()
+            .context("Can't convert element from string")?;
+    }
+
+    Ok(vec)
+}
diff --git a/slicer/src/main.rs b/slicer/src/main.rs
index 5248f1e..2b02ff7 100644
--- a/slicer/src/main.rs
+++ b/slicer/src/main.rs
@@ -6,60 +6,46 @@ use std::{
 };
 
 use anyhow::Result;
-use nalgebra::{Vector2, Vector3};
+use args::Args;
+use clap::Parser;
+use nalgebra::Vector3;
 
-use common::{
-    config::{ExposureConfig, SliceConfig},
-    format::Format,
-    serde::DynamicSerializer,
-};
+use common::serde::DynamicSerializer;
 use goo_format::{File as GooFile, LayerEncoder};
-use slicer::{mesh::load_mesh, slicer::Slicer, Pos};
+use slicer::{mesh::load_mesh, slicer::Slicer};
+
+mod args;
 
 fn main() -> Result<()> {
-    const FILE_PATH: &str = "teapot.stl";
-    const OUTPUT_PATH: &str = "output.goo";
+    let args = Args::parse();
+    let slice_config = args.slice_config();
 
-    let slice_config = SliceConfig {
-        format: Format::Goo,
+    let ext = args.model.mesh.extension().unwrap().to_string_lossy();
+    let file = File::open(&args.model.mesh)?;
 
-        platform_resolution: Vector2::new(11_520, 5_120),
-        platform_size: Vector3::new(218.88, 122.904, 260.0),
-        slice_height: 0.05,
-
-        exposure_config: ExposureConfig {
-            exposure_time: 3.0,
-            ..Default::default()
-        },
-        first_exposure_config: ExposureConfig {
-            exposure_time: 50.0,
-            ..Default::default()
-        },
-        first_layers: 10,
-        transition_layers: 10,
-    };
-
-    let file = File::open(FILE_PATH)?;
     let mut buf = BufReader::new(file);
-    let mut mesh = load_mesh(&mut buf, "stl")?;
-    let (min, max) = mesh.bounds();
+    let mut mesh = load_mesh(&mut buf, &ext)?;
 
     // Scale the model into printer-space (mm => px)
-    let real_scale = 1.0;
-    mesh.set_scale(Pos::new(
-        real_scale / slice_config.platform_size.x * slice_config.platform_resolution.x as f32,
-        real_scale / slice_config.platform_size.y * slice_config.platform_resolution.y as f32,
-        real_scale,
-    ));
+    mesh.set_scale(args.model.scale.component_div(&Vector3::new(
+        slice_config.platform_size.x * slice_config.platform_resolution.x as f32,
+        slice_config.platform_size.y * slice_config.platform_resolution.y as f32,
+        1.0,
+    )));
+
+    mesh.set_rotation(args.model.rotation);
 
     // Center the model
+    let (min, max) = mesh.bounds();
     let center = slice_config.platform_resolution / 2;
     let mesh_center = (min + max) / 2.0;
-    mesh.set_position(Vector3::new(
-        center.x as f32 - mesh_center.x,
-        center.y as f32 - mesh_center.y,
-        mesh.position().z - 0.05,
-    ));
+    mesh.set_position(
+        Vector3::new(
+            center.x as f32 - mesh_center.x,
+            center.y as f32 - mesh_center.y,
+            mesh.position().z - 0.05,
+        ) + args.model.position,
+    );
 
     println!(
         "Loaded mesh. {{ vert: {}, face: {} }}",
@@ -90,7 +76,7 @@ fn main() -> Result<()> {
     // Once slicing is complete write to a .goo file
     let mut serializer = DynamicSerializer::new();
     goo.join().unwrap().serialize(&mut serializer);
-    fs::write(OUTPUT_PATH, serializer.into_inner())?;
+    fs::write(args.output, serializer.into_inner())?;
 
     println!("\nDone. Elapsed: {:.1}s", now.elapsed().as_secs_f32());