Lasercut Arduino Mega Box
by bvesperman, published
Sometime ago I started working on prototyping on the Arduino platform and got a good working device. The problem was I couldn't get out of the 'ball of wires on my desk' phase. I wanted to have a generally well contained device that I could just hand off to someone and not run into the problem of a wire falling out and the end user having to debug the device. I also wanted the ability to take it apart and attach new sensors or rearrange the contents without too much headache.
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The main script file 'Arduino mega Box.scad' is based off of my Laser Cut Box Generator Script that I published a little while ago. I determined the basic size of the box I wanted and then started cutting holes in it for my arduino, SD card data logger and arduino proto screw shield that I got from sparkfun.
To model where the holes went I got the arduino model from thingiverse, imported it into my OpenSCAD file so I could easily tell where the USB and power holes belong. I also imported the arduino mega holes dxf so I could get the mounting holes mostly right.
I modified the arduino.scad file to have a Shield() module. This way I could put a placeholder in my script to represent the various shields I was using. I also created another dxf file based off the board schematics for the proto screw shield so I could model the holes in my box.
I also used the PCB Stand Off Library to build a simple standoff that I could just snap in the arduino. The standoff is pretty much a one time use, it tends to break off if you try to take off the board.
I didn't really need to re-cut much. The SD card wasn't quite aligned properly the first time but everything else came out the first time.
Using a wood box makes it easy to just drill holes through to pass wires through and connect components.