Computer Controlled Cutting

LASERCUTTER

Group Assignment

This work was carried out by the team made up of teachers from the I.E.S. “REPÚBLICA FEDERAL DE ALEMANIA”, which is detailed below:

- Eng. Olenka Odar Jiménez

- Eng. Deisy Olguín García

- Eng. Roger Zavaleta Lozano

- Eng. Luis Montalvo Soberón

- Técnico Ronald Villar Gonzales

We still do not have a Fab Lab implemented in our institute, so we looked for places where we could carry out our assignments; Although we were limited in the time we could use the machines, we were able to carry out the activity.

Laser cutting

Laser Cutting Engraving Machine CMA 1610 TA, has 2 Tube Laser with power 1 Tube 80 watts. 1 Tube for 1 Head. Can be used 2 Tubes for 2 Head at a time, can also 1 Tube 1 Head is On.

Mark: Hans Yue Ming

Model: CMA 1610 TA

Software: Corel Drawn + SmartCarve4.3

Technical Parameter

Some photos of the machine that was worked on:

The company Cero 5 S.A.C. belonging to Mrs. Judy Fuentes Silva, located on the corner of Lora y Lora avenue with Elmer Faucett street, rented us part of its facilities for hours to carry out the work in MDF and acrylic using a laser cutter. In this company, COREL DRAW is used as the base software to design the objects and then these files are opened in the software of the laser cutting machine, which is SmartCarve 4.3; from where the printing order is finally given, not without first indicating the origin of the laser on the same cutter.

SmartCarve4.3 possesses many functions, such as computer aided design, computer intelligence control, images processing,multi languages, and can deal with various data types, multiple laser processing, multiple layers designs.
It is an epistasy platform software developed by GD Hans Yueming Laser Co., ltd., supporting the processing control and data generation of most laser processing equipments.

COREL DRAW

Our instructor recommended us to work on the template in Autocad and then import it into Inkscape, but when doing so the letters were deformed; so he told us to make the letters in Inkscape and the graphics in Autocad, but the process was difficult because the Inkscape files could not be opened in Autocad. On the other hand, in the place where we would make the laser cut, it works with Corel Draw, so we decided to make the template and the rulers directly in that software, which also allows us to make measurements on the objects using the COTA tool.

Making the template and combs

The values test template was made in 3mm MDF, taking into account the parameters: For the cut: Power = 35% Speed = 14mm/s For engraving: Power = 20% speed = 40mm/s

In order for shades of color to be seen in the MDF, the FILL is used, which means the number of lines. The combs to verify the adjustment of the cuts were worked in 3mm MDF and 4mm acrylic, taking into account that the power is greater and the speed is lower:

Pressfit kit design: For the design of the pressfit kit, it was chosen to make a cube with a side of 80mm in Autocad and then we passed it to Corel Draw.

It should be noted that in the case of acrylic, the text to be engraved must have a minimum size of 3mm, to prevent the laser from damaging it.

In one of the attempts, a house was made with Lego-type pieces in MDF material, but it could not be built because the pieces did not fit. It was a failed but exciting experiment.

The vinylcutter machine

Mark: Graphtec
Model: CE6000-60

Technical Parameter

The files to be worked on vinyl must be previously vectorized in corel draw, it must be avoided that the image has many fill details so that the machine does not work much. These images were worked by layers in vinyl of different colors.