A Cutting ABS plastic sheets is easy with the right tools and techniques, depending on the thickness and precision required. Here's how:
For thin sheets (up to 1-2mm):
Utility knife or scoring tool: Score the sheet along a ruler with firm, repeated strokes until you cut halfway through. Then bend at the scoring line to snap cleanly. Smooth the edges with sandpaper if necessary.
Scissors or tin snips: For very thin sheets or curved cuts, heavy-duty scissors or snips work well, although edges may need to be finished.
For medium sheets (2-6mm):
Jigsaw: Use a fine-toothed blade (10-12 TPI) designed for plastics. Clamp the sheet to a stable surface, mark your line and cut at a moderate speed to avoid melting the ABS through friction. Cool the blade with water or air if it overheats.
Circular saw: Use a carbide-tipped blade (high tooth count, 60-80 TPI). Secure the sheet, cut slowly and support it to prevent vibration or cracking.
For thick panels (6mm+):
Table Saw: As with a circular saw, use a fine-toothed blade and push the panel steadily through. Use a zero-clearance insert to reduce chipping.
-Band saw: Great for curves or thick cuts; use a narrow, fine-toothed blade and go slowly to maintain control.
General tips:
Marking: Use a pencil or marker with a ruler or template.
Safety: Wear safety glasses and a mask - ABS dust can be irritating. Work in a ventilated area.
Control speed: Too fast can melt the plastic; too slow can cause rough edges. Test on scrap first.
Finishing: Smooth edges with 120-220 grit sandpaper or use a deburring tool.