corrected links

docs/Assignments/week_6_electronic_design/lecture_notes.md

@@ -152,6 +152,7 @@ Now we can also add a LED the same way.
 | E   | Edit value (Only works on components that can be edited) |
 | X   | Draw a trace                                             |
 | D   | Drag   Move something with traces                        |
+| F   | Finish the route for me                                  |
 |     |                                                          |
 
 

docs/Assignments/week_7_computer_controlled_cutting/lecute_notes.md

@@ -0,0 +1,117 @@
+# Lecture Notes
+
+## Wednesday - Neil time!
+
+Press F in KiCad during tracing to `automaticly` finish the trace
+
+
+Open loop cnc machine
+
+Closed loop cnc machine
+
+
+### Materials
+Tri fold cardboard - Doesn't machine well
+Ridgit foam insulations
+MDF - machines smoothly - can be very toxic
+MDO - better MDF
+OSB "constructieplaat - recycled wood - eco friendly
+
+### Flute
+2 than one flute mills 
+The more flutes to smaller the bites the drill takes so the smoother the result is.
+
+fewer flutes when removing a lot of material.
+
+Flutes can have different coatings. Coatings can significantly extend the lifetime of the `end mill`
+
+Different bits for center cutting and not center cutting
+
+center cutting lets you directly go into the material
+Non center cutting is to clean the cuts.
+
+
+Need to watch which way you're drilling it will have impact on the holes and cuts
+
+### Cutting materials
+Down cut leaves loose material around the hole
+up cut destroys the bottom if you're going through the entire material at once
+
+doing a combination can give you the benefit of both and leave a clean hole.
+
+
+
+Machineries handbook
+
+Chip load - how fast you let the tool spin/cut while moving. Too fast is bad too slow is bad. There is a sweetspot
+
+
+For heavy metal machinery you need lubricants. For other stuff not really
+
+
+
+### locking the material in place
+machining vise - good
+bar clamps - need a lot and to distribute the holding force
+vacuum bed - The vacuum hold the material down - need periodic maintenance because the holes can get clogged
+
+
+### Sacrificial layer
+Set to Z=0 
+
+Bolts can get loose on the shopbot.
+
+### Dust
+You need a dust collector because the cnc machine will create a lot of dust. If there's dust around the lab something is wrong.
+
+
+### Modification
+flexible designs - Flexure
+Steam bending - Big box of steam to soften wood and shape it.
+
+
+Japanese wood joints
+https://www.thingiverse.com/thing:169723
+
+
+### Tool paths
+Kerf - Offset by tool diameter
+
+Runout - The tool may not be attached straight to the machine so it will create sloped cuts
+
+
+klein machining - cleaner cut but harder on machine - for finishing
+Conventional - To start out with is easier on the machine. Is more rough
+
+2d top down
+3d
+4d Can curve the tool during cutting
+5d all degrees of freedom
+
+
+
+
+prototype by 3d printing or laser cut before you do the cnc job
+
+
+Shopbot - Vcarve
+
+
+### Safety
+Sharp material can fly out
+Material can get very hot - Fires
+Splinters
+
+
+Always wear safety glasses
+Shoes no crocks or sandals
+Hair in a knot
+Ear protection
+
+
+Never reach into a running machine
+Never do large format machining alone
+You want a second pair of eyes and ears always check each other
+Need to be well prepared
+
+Know how to turn the machine off before turning it on

docs/final_project/final_project.md

@@ -66,7 +66,7 @@ For the drone I will need a lot of electronics. But I will also need a pcb for i
 
 ### Components 
 * MCU
-* BNO085
+* [BNO085](https://shop.slimevr.dev/products/slimevr-imu-module-bno085)
 * Something to drive the LED matrixes
 * SD card/ secondary MCU to control the matrixes
 * LED (mandatory)
@@ -106,7 +106,7 @@ It now looks like this:
 ![alt text](image-2.jpg)
 So I have 2 joysticks that are directly connected to the mcu. A screen that works on the I2C protocol and a LED.
 
-First when routing the joysticks I realised that the Xiao has analog on both sides of the board. So if I change the schematic so it connects to the other side I have a lot less longer traces.
+First when routing the joysticks I realized that the Xiao has analog on both sides of the board. So if I change the schematic so it connects to the other side I have a lot less longer traces.
 
 ![alt text](image-3.jpg)
 
@@ -117,7 +117,7 @@ I forgot to apply the design rules so I imported them again and now I have to re
 
 ![alt text](image-5.jpg)
 
-Then I needed to draw the outlines. To draw curved lines I used [this tutorial](https://www.youtube.com/watch?v=U0FIG2J6Zls). It's hard to get the get everything symmetrical. Maybe there is already a tool to do that but I don't know where to find it.
+Then I needed to draw the outlines. To draw curved lines I used [this tutorial](https://www.youtube.com/watch?v=aHIIXjRAhZA). It's hard to get the get everything symmetrical. Maybe there is already a tool to do that but I don't know where to find it.
 
 ![alt text](image-7.jpg)
 
@@ -126,6 +126,7 @@ This is the result of the board.
 ![alt text](image-6.jpg)
 
 
+
 ## BOM (bill of materials)
 | item  | price | link     |
 | :---- | ----- | -------- |