Laser-Cutting Induction - What is a Line?

As I am basing my project around silhouettes and scalpel work, I decided to book myself into the laser-cutting induction based in the woodworking department.  Here are some of the notes I took from the session, hosted by Matt:

• Think of the machine as a tool, not a 'printer'.  It doesn't have to be used to solely make finished products.
• When selecting the area to cut, the 'origin' is the bottom left part of the design, and the 'media' is the top right.  Allow at least a 30mm gap when dealing with the media to ensure accuracy.
• The laser nozzle needs to be focused to make a crisp cut.  It needs to be 3mm away from the material, which can be measured using a sample of 3mm thick acrylic.
• Make sure the extractor fan is always on full, as smoke produced from some materials can build up and escape from the machine.
• When working with some plastics, in particular acrylic, it is important to work in parts as the fumes built up from the laser process can be damaging to health.  A break every 15 minutes will reduce the impact and make it safer for people working in the area.
• There is no visual or audible way for the machine to tell you that it has finished cutting.  To judge this, wait a couple of seconds after the head has come to a standstill.

This is what I have learnt from the program used alongside the laser-cutting machine, APS Ethos:

• The PC is not networked, always bring work on a USB.
• .ai files are excellent to import and work with, but a CS3 or earlier save file is needed.
• Always start with [File] > [New Design].  Select the 'lasereffects' option as this comes with the set effects (cut through, kiss cut, engrave)
• To raster work, [Properties] > [Engraving Properties] and tick the box labelled [Engrave].  Apply and OK.
• 0.2 scan line resolution is the standard resolution for rasterising work, 0.1 is higher quality but takes double the time.
• Output Design sends the work to cut - change the materials and OK.
• Make sure to double check the Materials Manager section.

The induction opened my eyes to the possibilities of laser-cutting, and I came away with a broader knowledge of this technique in relation to Graphic Design.  Before the session I only considered a 2D outcome on paper or card, but the introduction of other materials has opened my mind to other possibilities and it will be interesting to experiment with this.