Instructables
Picture of Laser Acrylic Bookends by TechShop
Lasered Acrylic Bookends by Zack@TechShop
www.techshop.ws

This instructable will guide you in creating easy bookends made from a sheet of acrylic.  To do this, you need access to a laser engraving machine.  This might be hard to find outside of TechShop but some universities and architectural firms have them.  In order to do this you will need the following:

Tools:
1) Laser Engraver (all TechShop locations)
2) Heat Strip (some TechShop locations)

Associated TechShop Classes:
1) Laser Cutter SBU

Materials:
1) 18"x24"x1/8" Acrylic Sheet
 
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Step 1: Step 1: Preparing and Cutting

Picture of Step 1: Preparing and Cutting
bookends1.jpg
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Step 1:  Prepare your file for the laser cutter.  

I created this file using Corel Draw, but any scale-able vector graphics editor will work--AI, AutoCAD, Inventor, Inkscape, etc.  Feel free to use my file as well to make your own.

For this file, I've got 100% hairline vectors--this means that everything will be a cutting operation on the laser engraver.  Even the words "TechShop" will be cut out.  Any bitmap images or vector lines thicker than hairline line-weight will be etched.  For Adobe users this is > .001 pt stroke. 

Next, under the print properties I choose the proper settings for 1/8" acrylic on a 60 Watt lasers here in TechShop San Francisco.    The speed/power/frequency setting in the blue print properties dialog box should be 16/90/5000 (see below).  It is important to note that if you are cutting only one set, it may not be necessary to use the whole 18x24 inch bed.  If this is the case, register your work to the top left of the laser bed and make sure that your dimensions in the print properties dialog box match the true dimesions of your work.  This should also match in the dimensions of your document properties (Corel Draw), artboard (Adobe Illustrator), or sheet size (Inventor).

Afterwards, make sure the focus is adjusted correctly.  The focus guide should barely be touching the top of the acrylic (see below).

Lastly, hit the GO button and enjoy the show.

Attached at this point below are the .crd and .ai files of my work.  Please use these as you want.
Those are awesome!