Changes

no edit summary
Line 27: Line 27:  
It is important to remember that a laser cutter focusing head can only move along the X-Y plane. While this may seem like a limitation at first, the focusing head’s movements are very precise and allow for the manufacturing of parts that contain special assembly features, which in turn easily mesh together to result in complex 3-dimensional structures. A good example of such a feature is that which can be seen on-screen. This part holds together by what are called finger joints. Keep in mind that making this part on a laser cutter instead of a 3D printer or a manual milling machine can greatly reduce both manufacturing time and costs.
 
It is important to remember that a laser cutter focusing head can only move along the X-Y plane. While this may seem like a limitation at first, the focusing head’s movements are very precise and allow for the manufacturing of parts that contain special assembly features, which in turn easily mesh together to result in complex 3-dimensional structures. A good example of such a feature is that which can be seen on-screen. This part holds together by what are called finger joints. Keep in mind that making this part on a laser cutter instead of a 3D printer or a manual milling machine can greatly reduce both manufacturing time and costs.
 
=== Rastering ===
 
=== Rastering ===
Rastering consists of superficially removing material from stock, resulting in an embossed feature. Rastering is applied to a component in a fashion similar to that of an inkjet printer, where a print head moves quickly back and forth printing a thin line at a time.
+
Rastering consists of superficially removing material from stock, resulting in an embossed feature. Rastering is applied to a component in a fashion similar to that of an inkjet printer, where a print head moves quickly back and forth printing a thin line at a time. Rastering is a type of engraving, where top layers of the material are removed to create a depression in the material. You will know the laser is rastering because it is moving back and forth like a regular 2D printer. Our laser has a built in setting that distributes the power settings over different shades. This means that a darker shade will look darker because it received more power when rastered. Think of it like a black and white printer.
 
=== Vectoring ===
 
=== Vectoring ===
Vectoring consists of following vector lines specified in your program. This mode is mostly used for cutting through material, but can also be used to contour shapes or text.
+
Vectoring consists of following vector lines specified in your program. Vectoring is most often used to cut through a material. However, at lower settings it can also be used to engrave. Instead of moving back and forth, the laser is following a “vector”. A vector is a line with a specified direction and magnitude. In other words, a line that connects two points. Our laser has a point of 0.001” (0.0254 mm) in diameter. For a line to be recognized as a vector, the line width has to be the size of the point. We will explain how to do this further in this document.
    
<br />
 
<br />
    
===Laser Cutter Setup===
 
===Laser Cutter Setup===
There are 4 parts to the laser cutter setup:
+
In order to use a laser cutter, there are 4 parts that need to be available:
    
*Laser Cutter: Machine that will cut the material
 
*Laser Cutter: Machine that will cut the material
Line 41: Line 41:  
*Air Compressor (compressed air): A steady flow of air to blow smoke and cutting residue away from the beam path and optics of a laser cutter. It's simple, but critical; without it, smoke can obscure and reflect the laser beam, foul lenses and mirrors, and severely degrade cut quality.
 
*Air Compressor (compressed air): A steady flow of air to blow smoke and cutting residue away from the beam path and optics of a laser cutter. It's simple, but critical; without it, smoke can obscure and reflect the laser beam, foul lenses and mirrors, and severely degrade cut quality.
   −
As shown in the image below, the laser cutter has an on/off located on the bottom left hand side of the laser. The main control panel located on the front.
+
===Laser Safety===
 +
 
 +
*In operation there is a laser diode pointer (red dot pointer), this is similar to a laser pen but it should never be directed into anyone's eyes.  The actual laser beam that will be cutting is invisible so never modify the enclosure.
 +
*The filter should always be attached while performing a cut, the laser cutter is not to be used without the filter, this ensures that the air in the room is safe for users and limits potentially hazardous debris
 +
*The laser can cut many materials but some materials that can be hazardous or dangerous to cut (ex. the small dust particles of MDF are cancer causing).
 +
*Never let the laser system operate unattended.
 +
*Always use the air compressor (located below the table or on the wall) to provide sufficient airflow for the cut.
 +
*A vector cut moves much slower than a raster engrave therefore a lot of heat is being applied to the material for a longer time, which may cause it to combust.
 +
*Always remove debris from crumb tray after machine use to prevent fires.
 +
*Never disassemble the machine or remove protective covers. Never open the machines access panels while unit is plugged in. The AC input to the Epilog Laser is potentially lethal and fully contained in the cabinet.  
   −
There are a few important safety features incorporated into the laser cutter. Placed on the glass lid is a magnetic switch. If the lid is opened while the laser is running, the lense mechanism will keep moving, but the laser will stop firing. This means that it is very difficult (if not impossible) to burn yourself with the laser. A similar mechanism is incorporated into the front door.
+
*Tips: There are a few important safety features incorporated into the laser cutter. Placed on the glass lid is a magnetic switch. If the lid is opened while the laser is running, the lense mechanism will keep moving, but the laser will stop firing. This means that it is very difficult (if not impossible) to burn yourself with the laser. A similar mechanism is incorporated into the front door.
 
===Control Panel===
 
===Control Panel===
 +
As shown in the image below, the laser cutter has an on/off located on the bottom left hand side of the laser. The main control panel located on the front.
    
#'''Go:'''Start or stop a job or process
 
#'''Go:'''Start or stop a job or process
Line 77: Line 87:     
[[File:Properties1.png|center|thumb|555x555px|Properties page]]
 
[[File:Properties1.png|center|thumb|555x555px|Properties page]]
==What can it do?==
  −
The laser cutter has two different methods of transforming the material, either rastering or vectoring. Rastering is a type of engraving, where top layers of the material are removed to create a depression in the material. You will know the laser is rastering because it is moving back and forth like a regular 2D printer. Our laser has a built in setting that distributes the power settings over different shades. This means that a darker shade will look darker because it received more power when rastered. Think of it like a black and white printer.
     −
Vectoring is most often used to cut through a material. However, at lower settings it can also be used to engrave. Instead of moving back and forth, the laser is following a “vector”. A vector is a line with a specified direction and magnitude. In other words, a line that connects two points. Our laser has a point of 0.001” (0.0254 mm) in diameter. For a line to be recognized as a vector, the line width has to be the size of the point. We will explain how to do this further in this document.
   
==Material Settings==
 
==Material Settings==
 
===Materials not allowed in the CO<sub>2</sub> laser===
 
===Materials not allowed in the CO<sub>2</sub> laser===
MakerRepo Administrators, MakerRepo Staff
213

edits