Difference between revisions of "Epilog Laser"

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[[File:|thumb|right|Epilog Laser in the Idea Shop Prototyping Lab]]
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[[File:EpilogLaser.JPG|thumb|right|Epilog Laser in the Idea Shop Prototyping Lab]]
 
__TOC__
 
__TOC__
 
=About Epilog Laser=
 
=About Epilog Laser=
The epilog laser is a machine that is capable of cutting, rastering, and etching a variety of materials in a quick and easy way. The laser is limited to performing these actions in the 2D X-Y plane and uses a laser to do so. This machine uses files printed from AutoCad to  
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The epilog laser is a machine that is capable of cutting, rastering, and etching a variety of materials in a quick and easy way. The laser is limited to performing these actions in the 2D X-Y plane. This machine uses files printed from AutoCad to cut these parts, and files can be sent from any shop computer in the lab.
 
;General Stats<nowiki>:</nowiki>
 
;General Stats<nowiki>:</nowiki>
:'''Material :''' Plaster (CaSO<sub>4</sub>)
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:'''Material :''' Acrylic, Wood, Vinyl, Foam Core,  (CaSO<sub>4</sub>)
:'''Maximum Part Size :''' 203mm x 254mm x 203mm (8in x 10in x 8in)
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:'''Maximum Part Size :''' 457.2mm x 609.6mm (18in x 24mm)
:'''X/Y Resolution :''' 300 x 450 dpi
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:'''Layer Thickness :''' 0.089mm (.0035in)
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=Preparing a File=
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:''Main Article : [[Using AutoCad to Laser Cut]]''
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All of the computers in the shop have either AutoCad 2016 or 2017 software and can be used to create files that will be laser cut. In AutoCad, your file should only consist of 2D geometry and should use the preset layering system the shop has in place. Yellow is used for lines that will be cut first, while purple is for lines that will be cut second. Red is for rastering, while green and blue are for scoring shallow and deep respectively. White lines, are not read by the laser. It is important to note that these are not colored lines, these are lines set to the specific colored layers.  
 
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=Processing=
 
=Processing=
 
:''Main Article : [[Processing zPrinter Files]]''
 
:''Main Article : [[Processing zPrinter Files]]''
[[File:Good Netfab Capture.PNG|thumb|right|Good STL in Netfabb]]
 
;We will only process STLs which have<nowiki>:</nowiki>
 
:1 shell per continuous part
 
:0 border edges
 
:0 invalid orientations
 
:0 holes.
 
;Geometry should have a minimum wall thickness of 2mm for “best chances” to survive post processing.
 
Even if Netfabb reports no invalid orientations, if we see red triangles in repair mode there is a problem with your model. Print at your own risk.
 
If you are unsure of a model in NetFabb and want to see how it is perceived by the zPrinter we can process it in zPrint.
 
 
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==Fixing a File==
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=Processing=
:''Main Article : [[Fixing STLs]]''
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:''Main Article : [[Processing zPrinter Files]]''
Students are welcome to use any of our computers for fixing their files in Netfabb or Rhino.
 
;Here are some tips to get you started at home<nowiki>:</nowiki>
 
:Ideally in Rhino you want one closed polysurface before meshing.
 
:NetFabb is better at meshing than Rhino. Consider opening the 3dm file in NetFabb to generate the STL instead.
 
:Default repair is decent at fixing holes, border edges, and invalid orientations. Then try using boolean join to reduce shells down to 1.
 
:If boolean join results in multiple shells then most likely the shells are not contiguous. Consider deleting extra shells in model.
 
:Extended repair wraps an existing STL in a new mesh. This can severely alter geometry and result in thin walled sections.
 
 
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==Printing Color==
 
You can color your model in the zEditPro Software or export a VRML file from your favorite CAD software. VRML files must be saved as Version 2 with texture coordinates exported. Since there is no black color cartridge, any black on your model will be a high density mix of CMY and may appear as thin stripes of those colors. '''We cannot guarantee color accuracy.'''
 
[[File:ZEdit Pro Color.JPG|thumb|right|3D Model textured in zEdit Pro with a color gradient]]
 
===Coloring in zEditPro===
 
:''Main Article : [[Coloring in zEdit Pro]]''
 
;From ''Paint and Texture Model'' mode, you may either apply colors or a texture (image) to your model<nowiki>:</nowiki>;
 
:For coloring: you may color triangles, surfaces, shells, or the entire part. Right click to apply your changes.
 
:For texturing you can apply it to visible surfaces or your whole model. You may also apply the texture as a straight projection or wrapped around the model.
 
;Right click to preview changes and right click to apply.
 
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=Post Processing=
 
:"Main Article : [[Preparing a File to Print]]"
 
Once a file has been processed and is ready to be printed, find a shop supervisor to help add it to the queue. The length of the queue is highly variable, and the time it takes to print a model may range from a few days to being ready by the end of the day it is submitted. Keep in mind that the ZPrint queue is very full during finals, midterms, and the time surrounding IPro Day. An estimate of queue length and a time to come pick up the part will be communicated to you once your part is added to the queue.
 
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==Cleaning Parts==
 
:"Main Article : [[Cleaning and Preparing for Infiltration]]"
 
After the part has been successfully printed, it is ready to be removed and cleaned. If a part is sturdy, one of the shop supervisors will clean the part. If the part has a high chance of failure, the creator of the part must remove and clean the part. To remove the part, the bed is raised and the powder surrounding the part is removed using the built in vacuum. Once the part is mostly free of powder and can be picked up, it is placed into the chamber to the right of the printing bed, and compressed air is used to remove the remaining dust. If the creator of the part does not wish to infiltrate the part, this is the end of the process and the creator is free to take the part.
 
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==Infiltration==
 
The printed parts from the Zprinter are very fragile, In order to make the part more durable it is either submerged in a infiltrate fluid or it is poured over the part. The infiltrate fluid is essentially a kind of super glue which is designed to rapidly strengthen parts. It is a non-blooming resin that can be easily sanded and painted. Not only do you get strong parts, but Z-Bond enhances the vibrancy of models printed with color.
 

Revision as of 15:43, 31 May 2017

Epilog Laser in the Idea Shop Prototyping Lab

About Epilog Laser

The epilog laser is a machine that is capable of cutting, rastering, and etching a variety of materials in a quick and easy way. The laser is limited to performing these actions in the 2D X-Y plane. This machine uses files printed from AutoCad to cut these parts, and files can be sent from any shop computer in the lab.

General Stats:
Material : Acrylic, Wood, Vinyl, Foam Core, (CaSO4)
Maximum Part Size : 457.2mm x 609.6mm (18in x 24mm)

Preparing a File

Main Article : Using AutoCad to Laser Cut

All of the computers in the shop have either AutoCad 2016 or 2017 software and can be used to create files that will be laser cut. In AutoCad, your file should only consist of 2D geometry and should use the preset layering system the shop has in place. Yellow is used for lines that will be cut first, while purple is for lines that will be cut second. Red is for rastering, while green and blue are for scoring shallow and deep respectively. White lines, are not read by the laser. It is important to note that these are not colored lines, these are lines set to the specific colored layers.


Processing

Main Article : Processing zPrinter Files

Processing

Main Article : Processing zPrinter Files