Learning Aim To be able to differentiate between machine beds. Success Criteria All of you will be able to list the properties that allows a machine tool to perform well. Most of you will be able to draw a deep cross section bed. Some of you will be able to evaluate guide-ways and produce 3D CAD drawings. What factors affect a machine tool’s accuracy? What differentiates the best from the cheapest machine tools? Learning Aim To be able to differentiate between machine beds Produce a PowerPoint presentation that covers the following information: Slide 1 : Four properties a machine bed/tool must have to maintain accuracy Slide 2 : Explain what a deep box section bed type is. Why is it an advantage? Include a diagram you have produced in AutoCAD (Extension : Produce a 3D CAD Extruded Model of this bed type) Slide 3 : What is a guide-way? What are the 8 principle requirements of a guideway? Slide 4 : What are the four types of slide-way? Produce an AutoCAD diagram and explain the uses for each. (Extension : Produce a 3D CAD Extruded Model of these slide-ways). Learning Aim To be able to differentiate between machine beds