Difference between revisions of "Laser Cutter"

From CoMakingSpace Wiki
Jump to navigation Jump to search
(→‎Location Requirements: updated from HPC manual)
(→‎Forbidden Materials: added epoxy resins)
 
Line 77: Line 77:
 
* materials that contain fluorine (F) - it can kill you and also destroys the machine
 
* materials that contain fluorine (F) - it can kill you and also destroys the machine
 
** e.g. [[Material:PTFE|PTFE]] ("Teflon") - very very unhealthy!
 
** e.g. [[Material:PTFE|PTFE]] ("Teflon") - very very unhealthy!
 +
* epoxy resins and materials bonded with epoxy resins
  
 
→ with some materials it is not clear whether it contains Cl or F. '''If you are not sure, don't cut or engrave it'''. If you notice '''any unusal coloration''' of the smoke or flame, stop the job immediately!
 
→ with some materials it is not clear whether it contains Cl or F. '''If you are not sure, don't cut or engrave it'''. If you notice '''any unusal coloration''' of the smoke or flame, stop the job immediately!

Latest revision as of 18:40, 19 May 2020

Lasers are awesome! We will soon add a big CO2 laser cutter (80 W) to our machine selection.

This tool is not ready for usage yet, since not all commissioning steps are completed yet. The process is also tracked on GitHub. Feel free to contribute to making it usable, any help is very welcome!

Task comment Status
Name the tool: - done
Take a picture - done
Find the manual as PDF printed copy and USB stick (different content!) are currently in the eRoom pending
Documentation this page needs more info on #Machine Control and the cooling system (at least) pending
Print QR-Code use the wikicrawler pending
Introduction Laser Cutter Introduction will have to be adapted pending
Security Check emergency switch was not properly attached; nothing should be lasered before we have a Laser Exhaust System (except some tests with paper & in the presence of a manager) pending
Test to be done or witnessed by a manager pending
tool's name, owner and approx. value provide to a manager for inventorization pending
Last step: make it available physically and in the wiki - then delete this template pending


We should wait with the physical steps at least until the machine has been moved to its spot and they should all be done after reading the available documents and be coordinated with a manager. However, information can already be gathered if you are interested in speeding up the process! Potential starting points:



MachineInfoBox

Laserscript LS6090

Laserscript LS6090.JPG
Synonyms: DE: Laserschneider, "Lasercutter"
Material: wood, glass, acrylic glass, ...
(list of cuttable & engravable materials;
list of only engravable materials)
Used with: laser exhaust system, water chiller
Access Requirements: upon personal introduction
Status: awaiting commissioning
(do NOT touch without at least one manager present!)
Software: Lasercut 5.3
Tutors:


The laser cutter will only be operated by members who have received a detailed introduction!

Safety Concerns

A laser cutter is a delicate and dangerous piece of equipment and should only run under direct supervision of a qualified user. The machine needs to be supervised even more than the 3D printers, with the operator standing by during the entire duration of a cutting job and being in close vicinity during engraving jobs.

Although the laser beam itself should be certified laser class 1 due to the massive housing and other safety features, the fumes generated when cutting various materials can be harmful to human health (see forbidden materials). A good exhaust filtering system can take care of fumes from the allowed materials but only an outside vent will really remove the smoky smell.

Location Requirements

  • no dust
  • 5 °C ≤ room temperature ≤ 25 °C
  • max. 70 % humidity
  • CO2 fire extinguisher in the area

==> in the eRoom

Rules

  • supervise the entire job when cutting
    • a fire can only be stopped quick enough if you open the lid immediately!
  • stay in close vicinity for the entire job when engraving
  • abort if you see, hear or smell anything out of the ordinary!

Forbidden Materials

  • materials that contain chlorine (Cl) - it's unhealthy and also destroys the machine
    • e.g. PVC ("vinyl", found in most soft plastics and records)
    • artificial leather
    • neoprene
  • materials that contain fluorine (F) - it can kill you and also destroys the machine
    • e.g. PTFE ("Teflon") - very very unhealthy!
  • epoxy resins and materials bonded with epoxy resins

→ with some materials it is not clear whether it contains Cl or F. If you are not sure, don't cut or engrave it. If you notice any unusal coloration of the smoke or flame, stop the job immediately!

Possible Materials (Cutting/Engraving)

Check the material settings database to see if and how something has been cut before and please add your experience as well.

In addition, you can check the official list from [Epilog].

  • wood
    • plywood
    • particle board/chip board
    • MDF and HDF are also allowed but will make frequent lens cleaning necessary due to their high glue content
  • acrylic glass/Plexiglass (→ not the cheap polystyrene/Bastlerglas from hardware stores, it welds itself shut after being cut)
    • cast acrylic (GS/gegossen) - "chemically better"
      • very suitable for engraving because the colour changes into a milky version of the original
    • extruded acrylic (XT/extrudiert) - better thickness accuracy
      • very suitable for cutting
      • very suitable for parts that should fit together tightly
      • not as suitable for engraving because there is no colour difference
  • leather, but no artificial leathers that contain chlorine!
  • paper
  • colored card
    • discoloration when "engraving", looks nice
  • cardboard
  • rubber (special kind for stamps)
  • foam
  • fabric

When cutting wood or acrylic glass, a small flame may be observed at the focal point but is not necessarily a bad thing. However, if it burns too much or is still on when the laser beam is already somewhere else, immediately open the cover. Because the laser automatically shuts down, the fire should go out.

Possible Materials (Engraving Only)

Cost

The tube and filters need to be replaced from time to time which will add up to several hundred €.

We will need to think of an appropriate user contribution per minute

Machine Control

TO BE DETERMINED!

(see (Archived) Epilog Zing 16 for the kind of information we are aiming for)

Useful Links

Downloadable Designs

Tutorials

Inspiration

Laser Cutting Services

You could also order laser cut parts online:

Metal Cutting

Not many laser cutters can cut metal. You could use a CNC mill instead, or try one of these services: