diff --git a/server/Cargo.toml b/server/Cargo.toml
index 78550ed..74a0645 100644
--- a/server/Cargo.toml
+++ b/server/Cargo.toml
@@ -38,3 +38,4 @@ tower-layer = "0.3.2"
 tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 typetag = "0.2.14"
+ucnlnav = { git = "https://github.com/ucnl/UCNLNav.git", version = "0.1.0" }
diff --git a/server/src/main.rs b/server/src/main.rs
index 21a9ae6..0259e51 100644
--- a/server/src/main.rs
+++ b/server/src/main.rs
@@ -31,6 +31,7 @@ use crate::{blocks::Block, paths::route};
 mod blocks;
 mod names;
 mod mine;
+mod fell;
 mod paths;
 mod safe_kill;
 mod turtle;
@@ -233,7 +234,7 @@ async fn set_goal(
     Json(req): Json<Position>,
 ) -> &'static str {
     let turtle = state.read().await.get_turtle(id).await.unwrap();
-    tokio::spawn(async move {turtle.goto(req).await});
+    tokio::spawn(async move {turtle.goto(req).await.expect("route failed")});
 
     "ACK"
 }
@@ -265,7 +266,8 @@ async fn turtle_info(
     let cloned = Turtle::new( 
         turtle.name.to_num(),
         turtle.position,
-        turtle.fuel
+        turtle.fuel,
+        turtle.fuel_limit,
     );
 
     Json(cloned)
diff --git a/server/src/mine.rs b/server/src/mine.rs
index 9b89e08..55dcf4f 100644
--- a/server/src/mine.rs
+++ b/server/src/mine.rs
@@ -136,6 +136,7 @@ const USELESS: [&str; 5] = [
     "minecraft:cobblestone",
     "minecraft:cobbled_deepslate",
     "minecraft:rhyolite",
+    //"minecraft:andesite", // TODO: Reach 2k
 ];
 
 /// Things that are desirable
@@ -150,7 +151,7 @@ pub async fn mine(turtle: TurtleCommander, pos: Vec3, fuel: Position, storage: P
     let mut valuables = Vec::new();
 
     async fn refuel_needed(turtle: &TurtleCommander, volume: i32, fuel: Position) -> Option<()> {
-        Some(if (turtle.fuel().await as f64) < (volume + (fuel.pos-turtle.pos().await.pos).abs().sum()) as f64 * 1.1 {
+        Some(if (turtle.fuel().await as f64) < (2 * volume + (fuel.pos-turtle.pos().await.pos).abs().sum()) as f64 * 1.8 {
             println!("refueling");
             turtle.goto(fuel).await?;
             println!("docked");
@@ -181,6 +182,9 @@ pub async fn mine(turtle: TurtleCommander, pos: Vec3, fuel: Position, storage: P
             println!("storage rtb");
             turtle.goto(storage).await?;
             dump(turtle.clone()).await;
+            // while we're here
+            turtle.goto(fuel).await?;
+            refuel(turtle.clone()).await;
         }
 
         pos += Vec3::z() * chunk.z;
@@ -222,7 +226,7 @@ async fn refuel(turtle: TurtleCommander) {
         if let TurtleCommandResponse::Failure = re.ret {
             // partial refuel, good enough
             println!("only received {} fuel", turtle.fuel().await);
-            if turtle.fuel().await > 1000 {
+            if turtle.fuel().await > 5000 {
                 break;
             } else {
                 turtle.execute(Wait(15)).await;
diff --git a/server/src/turtle.rs b/server/src/turtle.rs
index 79b94e2..3bc4be0 100644
--- a/server/src/turtle.rs
+++ b/server/src/turtle.rs
@@ -100,10 +100,11 @@ impl Default for Turtle {
 }
 
 impl Turtle {
-    pub(crate) fn new(id: u32, position: Position, fuel: usize) -> Self {
+    pub(crate) fn new(id: u32, position: Position, fuel: usize, fuel_limit: usize) -> Self {
         Self {
             name: Name::from_num(id),
             fuel,
+            fuel_limit,
             queued_movement: Vec3::new(0, 0, 0),
             position,
             pending_update: true,