Overview

CNC – Trainer – Course

This course is for beginners and is optimized to become a trainer for CNC machining. Attendees will be able to build a CNC from scratch and operate them efficiently as well.

Course – Dates:  every Monday, 9.00 – 11.00, starting at the 15.01.2018

Duration: 5 weeks, 5 units each 2 hours

Attendees: David, Kampru & Javi (remote)

Trainer: Guenter

Difficulty: Medium

Required knowledge: none

Outcome: Students will be able

  • to understand the concepts required to control a CNC (medium til large)
  • to build a CNC from scratch
  • use online services to find 3D models and machine them with Fusion-360 and Mach3
  • to know limitations and estimate the involved efforts and risks when producing parts on a CNC
  • to adopt and integrate the CNC’s facilities to their own needs and production

Chapters

Chapters overview

Units in general,  most classes are split in 4 parts:

  1. theory: new vocabulary and methods, 30 minutes
  2. we will take practical example and do the planning as well the preparation. This will include the modeling & programming part,  30 minutes
  3. machining, in this last part we will work with the machine, 30 minutes
  4. review and discussion of the part created, 30 minutes

Chapter – 1 : overview, shop basics/vocabulary & first example part

Requirements: on site, for this chapter it’s important to be physically present.

Detail page for Chapter – 1

This chapter is about the very basics

  • shop – basics:
    • vocabulary, tools, security measures
    • CNC components explained in short: wiring, linear motion systems, cooling & mist, breakout boards
  • practical example: lets machine a motor bracket
    • 1. setup machine
    • 2. model a part in Fusion 360
    • 3. Run the code on the machine
  • review/discussion: lets evaluate what we just did

Chapter 2: Lets go deeper!

In this chapter we repeat the basics of chapter 1 and we will go deeper in details

  • shop – basics:
    • CNC calibration
    • manual GCode programming
  • practical example: a part with multiple operations
  • review/discussion: optimization of the operations

Chapter 3:  Detailed walk through Fusion-360 & Mach-3

In this chapter we will learn the built-in Mach3 wizards and explore the operations of Fusion-360

  • shop basics:
    • more vocabulary,
    • more methods to setup the machine more efficiently
    • summary of CNC end-mills
    • feeds & speed
  • practical example: we will machine the parts for a small arm-bow
  • review/discussion: how to optimize speeds and feeds

Chapter 4: 4th axis machining

In this chapter we will learn how add 4th axis and how to use it in Fusion-360 & Mach-3

  • shop basics:
    • new vocabulary
    • how to add 4th axis to the machine
  • practical example: we will machine some text on an aluminium cylinder
  • review/discussion: optimization and customization

Chapter 5: 5th axis machining

In this chapter we will learn how to build a 5th axis and how to use it with Fusion-360 & Mach-3

  • shop basics:
    • new vocabulary
    • 5th axis basics
  • practical example: we will machine some text and pockets on an aluminium ball
  • review/discussion: optimization and customization

Chapter 6: build a machine from scratch

In this last chapter we will de-assemble the CNC, do some improvements and put all back together.

We will learn about critical components and methods to improve efficiency and accuracy.

  • shop basics:
    • find CNC components on ebay and other online sites
    • find end-mills, what’s important
    • how to calculate & optimize production prices
  • practical example: assemble a CNC from scratch, we learn different types of machines
  • review/discussion: optimization, out-sourcing to 3th parties, what’s important, more resources (suppliers)