Week10-Machine Design

Mechanical Design (part 1 of 2)
Group assignment:

  • Design a machine that includes mechanism + actuation + automation + application
  • Build the mechanical parts and operate it manually
  • Document the group project

Individual assignment:

  • Document your individual contribution

Machine Design (part 2 of 2) Group assignment:

  • Actuate and automate your machine
  • Document the group project

Individual assignment:

  • Document your individual contribution

Checklist

  • Documented the machine building process to the group page
  • Documented your individual contribution to this project on your own website
  • Linked to the group page from your individual page as well as from group page to your individual pages
  • Shown how your team planned, allocated tasks and executed the project (Group page)
  • Described problems and how the team solved them (Group page)
  • Listed possible improvements for this project (Group page)
  • Included your design files (Group page)
  • You need to present your machine globally and/or include an aprox. 1 min video (1920x1080 HTML5 MP4)+ slide (1920x1080 PNG) (Group page)

Group assignment

Group

Individual assignment

In this week’s tasks, I’m responsible for the modeling part.

Since we’re at a STEM education center in Shanghai, our team’s idea is to create a small CNC machine specifically for milling PCBs, intended for educational purposes.

At first, the plan for the CNC’s Y-axis was to move the platform back and forth. After completion, I found that the distance of movement was too large, which doesn’t meet our requirement for a small distance. 1 1

So I changed it to a plan where only the gantry moves.

There’s a conversion seat on the lead screw, connected to the slider with printed parts. This completes the motion part. 1 1

For the spindle part, I used injection-molded part found online and connected them initially with printed parts.

1 1

We encountered some issues during the process. Since the lead screw was custom-length, but the manufacturer mixed up my order, we couldn’t complete the assembly. Currently, we’re still waiting for the shipment to arrive.

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