Update laser cutter details (#27)

src/SUMMARY.md

@@ -11,6 +11,7 @@
     - [Abridged List](./equipment/abridged_list.md)
     - [Laser Cutter](./equipment/laser_cutter/README.md)
         - [Materials](./equipment/laser_cutter/materials.md)
+        - [Settings](./equipment/laser_cutter/settings.md)
     - [Bambu Lab P1S](./equipment/bambulab_p1s/README.md)
         - [User Guide](./equipment/bambulab_p1s/user_guide.md)
     - [Prusa MK3](./equipment/prusa_mk3/README.md)

src/equipment/laser_cutter/README.md

@@ -16,3 +16,7 @@ It cuts stuff using a laser.
 > **It is not permitted under any circumstances to leave this machine running unattended!**
 
 A list of compatible materials can be found [here](./materials.md).
+A list of known good settings is [here](./settings.md).
+
+> **Note:** both the safety/accessory control system and cooling system are currently being worked on (I know, top notch planning, right?).
+> As such, please avoid doing very long (>20 minute) jobs without asking about how to reasonably do this first.

src/equipment/laser_cutter/settings.md

@@ -0,0 +1,10 @@
+# Laser cutter settings
+
+This is a list of contributed known good settings.
+They are probably good to just use, if nothing else they are a good starting point.
+
+All laser users are free, and indeed encouraged, to update this list as they find new settings for specific materials.
+
+|Material                |Max. Power|Min. Power|Speed|
+|------------------------|----------|----------|-----|
+|Birch ply - 3mm         |80        |        65|   25|