Introduction

Assignments

Final Project


 

 

Week 16: Mechanical Design

 

In this week we only have (!) a group assignment including individual one’s.

Therefore, dyads were made. Chuma and myself took on the challenge of designing X and Y axes movements systems of the fortune cookie claw machine.  Brainstorming led us to mimic Échofab CNC machine which essentially does what we wanted our machine to do. The Z motion (the claw system really) in our case has to move from up and down position upon command when the user has placed it over a desired cookie (from proper handling positioning on the X and Y axes.

Sketches were made to ascertain we all understood what was to be made and my limited drawing talents yielded this two first attempts and were salvaged by greatly appreciated and much more talented Chuma (last one here):

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This translated into this OnShape design.

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Essentially assembling as such.

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From there, our proposal was to be integrated into main assembly parts (see others from our group report). Standard laser cutting and assembly:

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And while everything is happening in parallel (!) the X and Y axes will look like this in its final phase:

 

 

While designing and making this “X/Y chariots” extra parts are needed: bushings to hold the rods were needed. So, I turned to Thinkercad for a quick design and 3D printed a lot of them:

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This was my personal contribution to the nuts and bolts part of the team effort.

Also not showed here, but worth mentioning I contributed also at troubleshooting, setting up and assembling the device.