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INSTRUCTIONS FOR LASER CUTTING

Laser cut examples

SENDING THE DOCUMENT

Send a DXF file to laboratori.maquetes.etsab@upc.edu  (AutoCAD command: dxfout) and rename to: lastname_name.dxf indicating the material, thickness and size of the sheets used. We don't accept documents on USB memory sticks.

  • We will respond as soon as possible within the budget and forecast time to do it. 

  • If you want to make your job with material from LABMAQ, we have sheets between 1 to 10 mm thickness and maximum size 1000x750 mm (ask for different materials).

  • If you want to make your job with your material you should bring a piece of the same material to be tested before.

  • When your cut will be done we will reply your email advising you to pick up your order.

     

    DRAWING

  • First of all, draw the perimeter of the your material size in mm. (max 1150 x 900 mm so that it can fit into the machine)

  • Draw a 5 mm margin to inside all around the edge of the material. (The cutting area in a single process is max 980 x 800 mm). Objects must be within this range and measure the size in millimeters that you need for your model scale.

  • The line's thickness should be "by default".

  • Pieces perimeters should be POLYLINES to optimize your cut.

  • Blocks, patterns and texts must be exploted to convert them into lines.

    AutoCAD commands: _explode for blocks or frames, _txtexp for text.

    Rhino command "break down" for blocks or frames.

  • Duplicated lines must be erased.

    AutoCAD commands: _overkill.

    Rhino commands: 2D drawing file to cut, keeping layers.

  • Hidden lines will be cut as continuous lines.

  • Points will be recognized as circles.

  • We recommend a minimum separation between cutting lines >= 1 mm. Therefore, we are not responsible for those parts <1 mm thick that can easily be broken or twisted by heat.

     

    CONNECTORS

  • All parts you want to cut in <5 mm thick materials must be attached with connectors 1mm wide. Connectors are interruptions of the cutting lines. This avoids small pieces to fall once cut and its possible damage by laser.

     

    LAYERS AND COLORS

  • The drawing should be organized into the following layers

Layer Name

Color

Content

MATERIAL LÍMIT

1 red

Material perimeter and security margin

ENGRAVING *

2 yellow

Lines that will be graved over the material but not cut

INSIDE CUT

3 green

Inside perimeters to be cut (windows, other kind of holes,...)

OUTSIDE CUT

4 cyan

Outside perimeters to be cut

 

* Balsa wood only can be engraved if is thicker than 3mm

 
Template file in CAD for laser cutting