Commit 0e946d58 authored by Teddy Warner's avatar Teddy Warner
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Pizza Pizza Final

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<iframe width="900" height="650" src="https://www.youtube.com/embed/r6Nm2AUASLg" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
<figcaption>Pizza Pizza CNC Introduction Video</figcaption>
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During this machine-building assignment, our lab group of students split into two separate groups to build machines, as we concluded that four people working on each machine would give each of the group members a fair amount of work, without leaving the work to a couple of students. We split these groups base off on each students strengths, putting all mechanically inclined students in one group, consisting of [Graham Smith](http://fabacademy.org/2021/labs/charlotte/students/graham-smith), [Grant Fleischer](http://fabacademy.org/2021/labs/charlotte/students/grantfleischer), [Charles De Mey](http://fabacademy.org/2021/labs/charlotte/students/charles-demey), and [Teddy Warner](http://fabacademy.org/2021/labs/charlotte/students/theodore-warner/), and putting the software-oriented students in a separate group, who's machine page can be found [here](http://fabacademy.org/2021/labs/charlotte/Group%20Assignments/week07%20%28Other%20group%29/). That being said, this split allowed each group to challenge themselves, not solely focusing on their strengths but also being required to complete the entirety of the system. The entirety of our group's machine documentation can be found [here](INSERTLINK), while this page will focus on parts of the system that I completed or worked on.
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<iframe width="900" height="650" src="https://www.youtube.com/embed/Tk6OREM7gic" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
<figcaption>Pizza Pizza CNC Preparing a Small Pizza</figcaption>
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It actually took a a little while to decide what the focus of our project would be. We decided to make a pizza-making machine since almost everybody loves pizza. The basic idea is that we will have two tools, a sauce dispenser and a cheese dispenser. [Last year's group machine](http://fabacademy.org/2020/labs/charlotte/groupasswk17.html) was similar with the technique they used to dispense the cupcake batter, but ours is more complex. This is because we incorporated tool changing as well (switching between the sauce and cheese hoppers) which forced us to rethink how we were going to mount the different hoppers. For the movement of the gantry and hopper, we decided to build a standard CNC with an X-axis, Y-axis, and Z-axis. The motors we used for each of these axis are stepper motors similar to the ones on 3D-printers. For opening and closing the hoppers to control whether the elements would go through, we used a small servo motor on each of the hoppers. We need to rotate the bottom cover very little, so this was the best solution. It is also easier to write programs for the servo motors than it is for the stepper motors so there was no reason not to use servos.
## Pizza Pizza CNC Downloads
- Click [Here](https://drive.google.com/drive/folders/1MkSBvkSNUbUM2MBJjWq7NP9Jycz6-_t8?usp=sharing) to access and download all of the CAD, Code, and other files for the *Pizza Pizza CNC*. Due to the size of this folder, **These Files Are Hosted Through Google Drive, A Third-Party Cloud Storage Platform**, and clicking the provided link will direct you to the file folder's access page. Including these files as a download link on our site would be unfeasible due to the size of the folder, and therefore our instructor directed us to host these files externally.
## Machine Planning
We started the project by brainstorming and thinking through different machine ideas. Our group settled on a pizza preparation CNC machine, which we coined the *"Pizza Pizza CNC"*. The machine is a Marlin-based, 3 axis CNC, with tool-changing functionality to switch between a sauce and cheese dispensing toolend. With these goals in mind, we split up some of the machine work into individual systems each one of us could work on, and then bring together at the end. My work on the project included the machine's electronics, wiring, firmware, and electronic housing, as well as the machine's Z-carriage and axis, and the frames endstop and belt tensioner mounts.
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![](../images/week09/EstlcamToolpath.jpg)
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#### GCODE Testing
This process left Teddy with generated gcode of a single circle, that Teddy could later manipulate into our pizza preparing gcode. Teddy ran a quick test of this generated gcode on my personal CNC, just to confirm it's working, shown in the video below.
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This process left me with generated gcode of a single circle, that Teddy could later manipulate into our pizza preparing gcode. Teddy ran a quick test of this generated gcode on my personal CNC, just to confirm it's working, shown in the video below.
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<iframe width="900" height="650" src="https://www.youtube.com/embed/azvfDjM_h1E" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
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<iframe src="https://charlottelatin3.autodesk360.com/shares/public/SH56a43QTfd62c1cd968d6c07072463ac36c?mode=embed" width="900" height="650" allowfullscreen="true" webkitallowfullscreen="true" mozallowfullscreen="true" frameborder="0"></iframe>
## Downloads
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