Worksheets12. CNC Machining- Laser & Routing
Total questions: 10
Worksheet time: 5mins
What does LASER stand for?
Light Alignment by Sequential Energy Release
Lens Assisted Signal Extraction of Reflections
Linear Acceleration by Synchronised Emission of Radiation
Light Amplification by Stimulated Emission of Radiation
Which statement best describes how a laser cutter functions?
It uses a focussed beam to cut or engrave materials
It sands surfaces using high-speed rotating belts
It melts metals using an electric arc and filler wire
It mills parts with a spinning multi-tooth cutter
A shop plans to cut thick timber on a laser without proper setup. What is the primary risk to address first?
Part warping from slow cooling of molten metal
Uneven colour from inconsistent dye penetration
Loss of precision from mechanical backlash
Fire starting due to heat buildup in thick wood
Why is quality fume extraction with a filter necessary when laser cutting?
It prevents software crashes from static electricity
It keeps lenses magnetically aligned during operation
Fumes can be toxic, irritating, and potentially explosive
Fumes always improve edge finish on plastics
Which benefit of nesting software is most relevant for production planning?
Minimises material waste by arranging parts efficiently
Improves colour accuracy during engraving images
Strengthens joints by preheating edges evenly
Reduces laser tube voltage for longer lifespan
Which statement best describes subtractive manufacturing in CNC milling?
Material is added layer by layer to build parts
Material is removed from a workpiece using rotating tools
Parts are formed by melting powder with a laser
Shapes are made by stretching heated sheets over moulds
Why can’t a CNC router produce perfectly sharp interior corners in pockets?
Depth control prevents vertical walls in corners
The cylindrical bit’s diameter limits corner sharpness
Workpiece vibration rounds edges unintentionally
Toolpath software lacks precision for corners
A designer wants a wooden sign with 3D contours and precise pocket depths. Which setup is most suitable?
CNC router using CAM software and G-code
Injection moulding with custom tooling
Hand carving with chisels and templates
Vacuum forming with a heated plastic sheet
Which parameter is primarily controlled to set how deep a pocket is milled?
Spindle speed determining surface finish
Coolant flow reducing heat
Feed rate controlling chip size
Toolpath specifying depth per pass
To reduce the visible curve in an interior corner, what design or machining change is most effective?
Use a smaller-diameter end mill for tighter corners
Raise feed rate to sharpen geometry
Increase the bit diameter for stronger cutting
Switch to foam to allow sharper edges
