Computer Controlled Machining Framework

Group Assignment

Individual Assignment

• Objective: Design, mill, and assemble a large-scale (~meter-scale) object using the lab’s machining equipment.
• Tasks:
  • Conceptualize and design a meter-scale object
    • The concept is to build an ironing board cum chair, the item is to have the ironing board that can be used as a chair and also a store some items. The idea was inspired by a facebook DIY video depicting an ironing board that can be made both as an ironing board and aslo as a chair. This saves space to put ironing board and chairs
    Open this link to view the Unique chair Ironing Board
    
    
  • Design: Parts, Sub assemblies and complete assembly of the chair cum ironing board.
  • Use of Tabs and Slot and parametric equations
  
  
  
  
  
  • Parts
  
  
  
  
  • Complete assembly and Animation
  
  
  
  
  
  • Program the design for use with the CNC Router in the lab, selecting appropriate tools, speeds, feeds, and materials and simulate.
  • I opened Solid WorksCAM then chose 2.5 mill operations then chose contour Mill
  
  
  
  
  
  • I then generated an operational plan which involved choosing tools.
  
  • I chose the smallest tool that was avalable in the workshop which was 4mm
  
  
  
  • I then chose the the feed material and the feed rate. Since the there was no wood in the list I chose nylon which was the closest to wood
  
  
  
  • I then generated a tool path
  
  
  
  
  
  • CNC Mill Router
  
  • control panel and pendant
  
  
  • I then opened MACH3 demo to run the g-codes I had generated. I dowloaded Mach3.CNC Demo software which can run less tha 500 lines of gcode
  
  • Milling and Milled Componnets
  • Components being milled
  
  
  
  
  
  • Finishing OperationI smoothened the surfaces using a buffing machine. I wore PPE as it created fine dust
  
  • I assembled the milled components into the final object, ensuring structural integrity and functionality.
  
  
  
• The completed assembled object, presented for evaluation.


• A brief report documenting the design process, milling challenges, and assembly steps.