Trotec Laser Cutter

General Information

  • 3. Semester or higher
  • Laser introduction completed and passed
  1. Turn on the laser cutter and computer
  2. Unlock the machine with your ETH card
  3. Place the material onto the laser bed
  4. Pull down the protective cover and focus
  5. Upload your PDF into Ruby
  6. Choose placement and material
  7. Cut
  8. Turn off the laser cutter and the computer after use

Cost: 20.- / h  (logging time!)
Area: 1000mm x 610mm
File: PDF, vector-based, no groups

Colors:

  • Cut = Red (RGB 255,0,0) (Hairline / 0.01pt / 0.01mm thick)
  • Engraved Line = Black (RGB 0,0,0) (Hairline / 0.01pt / 0.01mm thick)
  • Engraved Area = Blue (RGB 0,0,255)
  • Acrylic Glass (Plexiglas, PMMA) (0.5mm to 10mm)
  • Paper (up to 300g)
  • Corrugated Cardboard (1.5mm to 3.5mm)
  • Cardboard (0.5mm to 4mm)
  • Air-Ply (1mm to 2mm)
  • Poplar Plywood (3mm to 10mm)

Tutorial

  1. Unlock the machine with your ETH card at the entrance door
  2. Turn on the laser cutter by turning the key to the right (1)
  3. Place the material on the upper left corner of the laser bed and pull down the cover
  4. Move the laser head over the material with the navigation keys (2)
  5. Focus on to the material surface by pressing both AF-keys at the same time (3)
  6. If you want to start your file at a specific spot drive there manually with the navigation keys (2)
  7. As soon the laser job started you can anytime stop the process with the “Pause/Play” key. (4)

Turn on

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Place material in the top left corner

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Place laser head over material

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Focus

  • Open the laser software “Ruby”
  • Log in with the auto-filled credentials if neccessary
  • If the message “Job Control isn’t running. Do you want to switch to Ruby?” appears, accept it with “Yes”

Tab 1: Import (1) your PDF (2)

If “Error” appears switch to Acrobat:

1. Delete all unnecessary lines in your file

2. Go to “Print production” and choose “Fix hairlines”, set the target value to 0.01 mm and save the file

Tab 2: Delete the white area around your drawing (1) or skip with “create job”

Tab 3: The position of the laser (1) should be visible and can be used to position your file. Choose the material from the drop down menu (2). Then continue with “push to laser” (3).

Tab 4: Check the material settings and start the laser process (1).

Please clean your workspace and turn off machine and computer after you’ve finished cutting.

Laser 1 and Lasers at ONA Workshop

The Laser 1 and the Lasers at ONA workshop work basically the same as all the other laser cutters, only the laser focus must be differently.

  1. Move the laser-head over the material.
  2. Mount the distance gauge.
  3. Raise the laser bed incrementally until the distance gauge falls off.
  4. Store the distance gauge. The laser cutter is now in focus.

Troubleshoot

Refresh the website.

Check the file for not needed items, e.g. a frame around the drawing. Open a graphics program for this task like Illustrator and switch to vector view. You’ll see all the elements and delete those which are not intended to be there.

If “Error” appears switch to Acrobat:

1. Delete all unnecessary lines in your file

2. Go to “Print production” and choose “Fix hairlines”, set the target value to 0.01 mm and save the file

You can start your print job again to fully cut trough. Please contact a Staff-Member so the preset can be optimized.

In some cases the laser-job can be continued with the “Play” button. If this doesn’t work you’ll have to restart the machine and check your file in-depth. Often geometries with too many anchor points or very small line-segments lead to this problem.

Check the thickness and colors of your drawing.