Commit 4b9c9a15 authored by Árni Björnsson's avatar Árni Björnsson
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Updated week04

parent f79634fe
Pipeline #319390 passed with stage
in 59 seconds
......@@ -48,6 +48,24 @@ So the piece I measured is 4.1 mm thick. Thats good to know!
## Cutting
### Safety first!
Safety is important and when using the laser cutter, just like most other tools, you must practice safety!
In our lab, we have two [Epilog]( laser cutting machines. Attached to them are two important items, a air compressor and ventilation.
You must always use the ventilation, as the machine emits smells and possibly hazardous gases when working! This is different between materials, so please read any and all safety instruction related to the material you are working with!
The compressed air is used when cutting, it is blown at the cutting point to held clear debris and put out / blow away any flames and smoke. This helps protecting the equipment, such as the laser lenses and provides a cleaner cut.
The Epilog machines have a safety switch on the lid, which is made out of protective glass, and it shuts the laser off if opened. This way, any harmful rays should not escape. Watching the laser work is mesmerizing but I'd like to recommend you do not!
You only have a single set of eyes, please take of them. Same goes with your lungs, please let the smoke/fumes clear!
### Let's cut!
I loaded the MDF into one of our laser cutter, which is an upgraded (40w -> 60w) Epilog machine. I started using with Epilog settings for 3mm wood.
<figure markdown>
......@@ -386,7 +404,84 @@ I aimed to create a rather simplistic design that focuses on the parameters. For
### First thing first, parameters.
Before drawing anything, I added as many parameters I could think of:
Parameters are awesome! To add parameters to a Fusion360 design, you must first got to: "Modify" -> "Change Parameters"
<figure markdown>
![Where to find parameters settings](../images/week04/parameters01.png)
<figcaption>Where to find parameters settings</figcaption>
There you are presented with this window where you can select the "+" at "User Parameters" and input your values. Let's test it out before moving on:
<figure markdown>
![Parameter table](../images/week04/parameters02.png)
<figcaption>Parameter table</figcaption>
Now we add information to it, making sure the unit of measurement fits your need, there is plenty to select from.
<figure markdown>
![Adding a parameter](../images/week04/parameters03.png)
<figcaption>Adding a parameter</figcaption>
Then just hit OK and..
<figure markdown>
![Our first parameter!](../images/week04/parameters04.png)
<figcaption>Our first parameter!</figcaption>
We have our first parameter! Now, let's try it out.
In a sketch we can create a simple rectangle, without giving any special thought to the size of it.
<figure markdown>
![A rectangle, without parameters](../images/week04/parameters05.png)
<figcaption>A rectangle, without parameters</figcaption>
Now we can hit the 'd' key on the keyboard (diameters), or select the sketch diameters button at the top tool bar:
<figure markdown>
![Sketch diameters](../images/week04/parameters06.png)
<figcaption>Sketch diameters</figcaption>
This gives us the option of selecting a part of a sketch and adding dimensions to it. Once an object has been selected, we get an input field:
<figure markdown>
![Using parameters on a sketch](../images/week04/parameters07.png)
<figcaption>Using parameters on a sketch</figcaption>
In the field, we can use text search to find our parameters. In this case it's simple, but if it were a huge project with thousands of parameters, this feature, along with proper [naming conventions](, is very important.
Adding this parameters to both sides gives us an rectangle of 10mm * 10mm. But here is where parameters come in handy! Based on what my desire is, I can alter this rectangle in different ways, all using parameters.
I could, for example, modify the sketch dimension so that the x-axis is "TestParameter * 2", resulting in a rectangle that is 20mm * 10mm.
In a simple design, this is fine. What would be even better, is to either:
- Define the parameter that is to multiplied with, in this case 2
- Define both the x and y of the rectangle, such as adding parameters called "Rect_X" and "Rect_Y" with value of 20 and 10 respectively.
Lets do just that!
<figure markdown>
![Nice parameters!](../images/week04/parameters08.png)
<figcaption>Nice parameters!</figcaption>
Once we have updated the sketch dimensions to use the Rect_X and Rect_Y, we can go back to the parameters table to adjust the values to modify our design. Here I have adjusted the X value to 40. Precise, no clunky dragging or guessing, just parameters!
<figure markdown>
### Moving on
Let'g get going on the this weeks project. Before drawing anything, I added as many parameters I could think of:
<figure markdown>
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