laser cutter information correction

docs/Assignments/week_3_computer_controlled_cutting/machines.md

@@ -26,7 +26,7 @@ The top square is without and the one below that is with the air tube attached.
 You can also disassemble the nozzle to clean the lens inside. 
 ![alt text](IMG_7928.jpg) 
 ![alt text](IMG_7930.jpg)
-The lens needs to be pointed down with the curved side so the laser collects and concentrates on one point. otherwise you get cuts like this.
+The lens needs to be pointed up with the curved side so the laser collects and concentrates on one point and all the light gets bend to the center. otherwise you get cuts like this.
 
 ![alt text](IMG_7952.jpg)
 The top line cut is with a unfocused laser and the bottom line is with a focussed laser.
@@ -43,6 +43,7 @@ After you've tightened the nozzle again its focused and ready for cutting.
 
 ### Laser cutting machine safety
 Always stand near the laser cutting machine on the red platform. In case a fire breaks out spray it out with the water spray bottle on the side of the machine.
+![alt text](image.jpg)
 
 ### Turning the machine on
 When we first turned on the machine it made a lot of noise. Laser cutters are very noisy machines. The power switch is the big red switch on the side.
@@ -57,9 +58,9 @@ After that you need to wait for a minute for the systems to start up. After that
 
 ### Laser software (LightBurn)
 To control and program the laser we use LightBurn. It's a easy software to use in my opinion.
-
+//TODO: lightburn docs
 ### Testing materials
-minimum power is corner power. That's why our test went wrong.
+For testing the laser cutter we're gonna use cardboard, acrylic and wood.
 
 
 ### Cardboard
@@ -73,7 +74,7 @@ This is the result of our cutting. Cardboard got a really wide curve that you ca
 But when looking at the backside you do see a difference with how much it burned. From there I think the best values for cardboard are high power and high speed 100s/100p or medium speed and low power 40s/25p.
 
 We also had one small little incident when we where cutting out the letters. The laser was too too each letter so the cardboard got hot and burned a little. We also noticed that our laser couldn't output a laser at 10 power. So that's why we stopped measuring it in the rest of the tests.
-
+These tests up here could be a fluke because all the minimum powers where left unchanged and random.
 
 #### Karf test
 So we did all the test with exactly 10 centimeters. So there are 11 cuts.
@@ -142,12 +143,79 @@ When designing watch out with copy pasting lines and don't overlap them. Then yo
 When cutting also make sure that your design that you're cutting doesn't drop down during cutting.  
 
 ## Files
- 
+ //TODO: Files
 
 
 
 ## Making a construction kit
 After brainstorming for a while I'm gonna make a drawer construction kit. It's gonna be for a simple 4 drawer box right now.
 
-## Fusion tips
-use drawing tab (thanks michelle)
+### Drawings
+I first have drawn out every part I needed and the necessary cuts and connections to make it sturdy. I ended up with this. I really like drawing first before I construct it because I can visualize the box better and make changes before I design it digitally. 
+
+![alt text](IMG_8068.jpg)
+![alt text](IMG_8069.jpg)
+
+### Designing
+I started by designing my base for my construction kit in fusion360 as a sketch.
+![alt text](FusionBaseSketch.jpg)
+I have made the teeth on the outside so I could extrude them as a separate body so I could use the pattern tool to attach them to the sides.
+
+### Patterns
+
+Once I extruded the teeth as separate bodies I could use the pattern tool to automatically generate the rest of the teeth. 
+![alt text](F360Pattern.jpg)
+Using that tool I made the multiple bodies into one body.
+For some reason I couldn't enter the a variable in the Quantity section of the pattern tool. Even through I have set the Variable to not be a unit.
+
+### Combining bodies
+After I did that four times I was left with a lot of separate bodies. So to combine them I went into the Modify tab and then selected combine.
+![alt text](F360combine.jpg)
+
+### Kerf and press fit
+
+### Aligning the teeth parametrically
+
+### Turning the 3D model into a SVG file
+
+Here I've had some struggles because when using Fusions build in export utility it only exports the sketches. After that I creating a new sketch and then projecting the 3D design onto the sketch.
+![alt text](F360Project.jpg)
+But the issue with this is that it isn't 100% accurate
+
+Then I tried the Shaper Origin tool. But that crashed my fusion when I tried running it. After struggling for a while Michelle came to me and showed me the drawing tab of Fusion where you can define flat drawings of your 3d models and export them as svg.
+The tab is found here. 
+![alt text](DrawingTab.jpg)
+
+Once you press that this menu will pop up
+
+![alt text](Drawingsettings.jpg)
+
+The standard settings are fine. You maybe wanna increase the sheet size to get your full design on it.
+
+![alt text](Drawingscreen.jpg)
+
+Now you will enter this screen. You wanna set the scale to 1:1 and change the orientation to the top (if you've designed from the top). 
+
+![alt text](Squareboxdrawing.jpg)
+You can Left click to place your design on the paper. Once you've placed everything you can select the outer borders and press delete.
+
+![alt text](beforedelete.jpg)
+![alt text](afterdelete.jpg)
+
+So you end up with this.
+
+Now you can export the file as DXF file that LightBurn can understand.
+
+### Result lasercutting
+I didn't complete this weeks assignment because I didn't have enough time and I still needed to fix stuff for my internship. This is the furthest I got. I ended up at the issue that the teeth weren't aligned properly.
+
+![alt text](IMG_8078.jpg)
+
+## Vinyl cutter
+https://modsproject.org/ (made during fabacedemy) (using for making pcb's, cnc machine and roland vinyl cutter)
+Roland GX-24
+Connects through webusb but doesn't work
+
+
+
+Focus is always the same for every mateiral because of the laser