diff --git a/red/src/printer/gcode.rs b/red/src/printer/gcode.rs
index 8e9e075..d529f9f 100644
--- a/red/src/printer/gcode.rs
+++ b/red/src/printer/gcode.rs
@@ -1,7 +1,9 @@
+use std::fmt::Debug;
+
 use lazy_static::lazy_static;
 use regex::Regex;
 
-pub trait GcodeCommand {
+pub trait GcodeCommand: Debug + Send {
     fn command(&self) -> &str;
     fn parse_reply(&self, reply: &str) -> GcodeReply;
 }
diff --git a/red/src/printer/mod.rs b/red/src/printer/mod.rs
index 20fd622..83676cd 100644
--- a/red/src/printer/mod.rs
+++ b/red/src/printer/mod.rs
@@ -21,7 +21,7 @@ pub struct State {
 }
 
 pub struct Printer {
-    pub printer_in: Sender<Box<dyn GcodeCommand + Send>>,
+    pub printer_in: Sender<Box<dyn GcodeCommand>>,
     pub state: Rc<State>,
 }
 
@@ -35,9 +35,12 @@ impl Printer {
             .expect("Unable to set serial port exclusive to false");
 
         let connection = LineCodec.framed(port);
-        let (tx, mut rx) = channel::<Box<dyn GcodeCommand + Send>>(32);
+        let (tx, mut rx) = channel::<Box<dyn GcodeCommand>>(32);
         tokio::spawn(async move {
             let (mut printer_tx, mut printer_rx) = connection.split();
+
+            // The printer will send some info after connecting. We need to wait for this
+            // to be received as it will otherwise stop responding for some reason:
             while let Some(stuff) = printer_rx.next().await {
                 if stuff.map(|s| s.contains("Loaded")).unwrap_or(false) {
                     break;