diff --git a/src/bin/render_lines_gui.rs b/src/bin/render_lines_gui.rs
index 69fbe3c..9e3373e 100644
--- a/src/bin/render_lines_gui.rs
+++ b/src/bin/render_lines_gui.rs
@@ -176,7 +176,10 @@ fn get_dac_configs() -> DacConfigMap{
     let mut dac_configs: DacConfigMap = HashMap::new();
     dac_configs.insert(
         DacId::Helios { id: 926298163 },
-        DacConfig{homography: python_cv_h_into_mat3(TMP_PYTHON_LASER_H)}   
+        DacConfig{
+            name: "Helios#1".into(),
+            homography: python_cv_h_into_mat3(TMP_PYTHON_LASER_H)
+        }   
     );
     dac_configs
 }
@@ -243,7 +246,6 @@ fn model(app: &App) -> Model {
             if detected.insert(dac.id()) {
                 
                 // DacId::EtherDream { mac_address: () }
-                dbg!(&detected);
                 println!("{:#?}", dac);
                 if dac_tx.send(dac).is_err() {
                     break;
@@ -301,7 +303,7 @@ fn laser_frame_producer(model: &mut LaserModel, frame: &mut laser::Frame){
     let space = &model.current_lines.space;
     let pointno = points.len();
 
-    dbg!(model.config.homography);
+    dbg!(&model.config.name);
 
     let mut new_points = Vec::new();
     for point in points.into_iter() {
@@ -362,7 +364,11 @@ fn update(_app: &App, model: &mut Model, update: Update) {
         println!("Detected DAC {:?}!", dac.id());
         let config = match model.per_laser_config.contains_key(&dac.id()) {
             true => &model.per_laser_config[&dac.id()],
-            false => &DacConfig::default(),
+            false => {
+                println!("Found unknown DAC, try to register it in get_dac_configs()");
+                dbg!(&dac.id());
+                &DacConfig::default()
+            },
         };
         let stream = model
             .laser_api
diff --git a/src/trap/laser.rs b/src/trap/laser.rs
index 7404473..6d019cc 100644
--- a/src/trap/laser.rs
+++ b/src/trap/laser.rs
@@ -72,6 +72,7 @@ pub struct LaserTimer {
 pub struct DacConfig{
     // #[serde(with = "DacIdSerializable")]
     // id: DacId,
+    pub name: String,
     pub homography: Mat3
 }
 
@@ -80,6 +81,6 @@ const LASER_H: Mat3 = python_cv_h_into_mat3(TMP_PYTHON_LASER_H);
 
 impl Default for DacConfig{
     fn default() -> DacConfig{
-        DacConfig { homography: Mat3::IDENTITY }
+        DacConfig { name: "Unknown".into(), homography: Mat3::IDENTITY }
     }
 }
\ No newline at end of file