Overview

The transcript summarizes a lecture on large format computer numerical control (CNC) machining techniques for digital fabrication. It covers an overview of applications, materials like wood, plastics and metals, design considerations including structural joints, tooling options for end mills and router bits, feeds/speeds, fixturing methods, and toolpaths. Safety considerations are emphasized given risks from spinning tools, dust and fire hazards. The goal is learning to design, mill and assemble meter-scale furniture or structures using these techniques. Action items include lab safety training, testing machine runout and alignment, reviewing speeds/feeds/materials, and designing/building personalized furniture.

Assignment

group assignment:

do your lab's safety training (test runout, alignment, fixturing, speeds, feeds, materials,) and toolpaths for your machine

individual assignment:

make (design+mill+assemble) something big (~meter-scale)
extra credit: don't use fasteners or glue
extra credit:include curved surfaces

WorkFlow

Making 3Dmodel

Rhinoceros8

OS: Windows 11

I have two daughters and as they grew up and their chairs got smaller, I decided to make a chair for them.

The current child's chair was measured and it was considered as one size larger, with dimensions of 400mm x 300mm x 450mm.

The current child's chair was measured and it was considered as one size larger, with dimensions of 400mm x 300mm x 450mm.

Making G-code

Printing Model

Equipment specifications

Item:Material Extrusion 3Dprinter

Manufacturer:Slab

Model number:GEM1000S

Material:PLA pellet