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- **hit the emergency door open/fire alarm located next to the door to G11**
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- **RUN OUT SCREAMING FOR HELP**
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## Operation modes:
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- cutting - **vector** designs only
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- engraving - vector and raster
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## Applications:
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- screen printing
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- press-fit construction
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- flexures, living hinges, mechanisms
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## CO2-proccessable Materials:
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- [corrugated cardboard](https://www.packaging2buy.co.uk/cardboard-sheets-corrugated.html) - very fast and cheap, incredibly useful for prototyping, but may well work in final designs
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- [wood / plywood / mdf](https://hobarts.com/sheet-materials/wood_124_15/) - cutting sheets more than 3mm thick leaves heavily charred edge
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... | ... | @@ -58,12 +46,6 @@ |
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- [Surface unwrapping in Rhino3D](http://docs.mcneel.com/rhino/5/help/en-us/commands/unrollsrf.htm)
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- [Surface unwrapping in Blender3D](https://wiki.blender.org/index.php/Doc:2.4/Manual/Textures/Mapping/UV/Unwrapping)
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## Design tips:
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- [Adjusting press-fit designs for kerf and material thickness](http://www.instructables.com/id/How-to-Adjust-for-Wood-Thickness-and-Kerf-on-a-Las/)
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- if cutting tiny parts that fall through the vector grid table - put tabs in place so they stay attached to the original piece. **Removing / disassembling the table to retrieve the pieces is not allowed.**
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## Useful Links:
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- [original manual](https://www.epiloglaser.com/assets/downloads/manuals/fusion-manual-web.pdf)
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- [cheesy promo video](https://youtu.be/1bS3adFjneI), but worth your 4 minutes to get a basic idea of the machine you're dealing with:
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- [**VERY VERY WORTHWHILE MIT COURSE ON LASER THEORY**](https://ocw.mit.edu/resources/res-6-005-understanding-lasers-and-fiberoptics-spring-2008/laser-fundamentals-i/) download the lectures onto your phone and watch on commutes.
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- [laser cut surfboard](http://responsivedesignstudio.blogspot.co.uk/2013/05/quarter-iso-grid-cardboard-surfboard.html)
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## Material Suppliers:
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- [Hindleys] (https://hindleys.com/) for acrylic
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- [Hobarts] (http://hobarts.com) for laser-grade MDF and Plywood
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- [Packaging2buy](http://www.packaging2buy.co.uk/corrugated-cardboard-sheets/) for cardboard sheets
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- [The Plastic Shop](https://www.theplasticshop.co.uk/correx-sheet-4mm-thick.html) for Correx/Fluted Polypropelene
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- [Plastic Stockist](http://www.plasticstockist.com/) for Delrin and any other plastic
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## Step-by-step refresher
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0. make sure laser bed is clean and empty
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1. turn on the laser
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- files for cutting need to be in .svg / .dxf / .ai file formats
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- bitmap images are used for engraving only
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- vector lines for cutting must be 0.01pt stroke
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- if cutting tiny parts (smaller than 10mm) that fall through the vector grid table - put tabs in place so they stay attached to the original piece. **Removing / disassembling the table to retrieve the pieces is not allowed.**
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## Design tips:
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- [Adjusting press-fit designs for kerf and material thickness](http://www.instructables.com/id/How-to-Adjust-for-Wood-Thickness-and-Kerf-on-a-Las/)
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## Epilog-suggested feeds&speeds (speed/power):
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- cutting single-flute corrugated cardboard: 60/100
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- work area: 1016x711mm
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- 75W CO2 laser source for cutting / engraving plastics/wood/paper/mdf/etc.
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- 50W Fiber laser source for etching metals, i.e. PCB fabrication
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## Material Suppliers:
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- [Hindleys] (https://hindleys.com/) for acrylic
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- [Hobarts] (http://hobarts.com) for laser-grade MDF and Plywood
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- [Packaging2buy](http://www.packaging2buy.co.uk/corrugated-cardboard-sheets/) for cardboard sheets
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- [The Plastic Shop](https://www.theplasticshop.co.uk/correx-sheet-4mm-thick.html) for Correx/Fluted Polypropelene
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- [Plastic Stockist](http://www.plasticstockist.com/) for Delrin and any other plastic |