100 likes | 182 Views
Group 16 Screwheads. Mike Harrison, Jeremy Ozer Mark Brandau. Design Changes. Still using suspension bridge idea, but have greatly reinforced the base and have improved arm Improvements greatly increase strength against deflection
E N D
Group 16Screwheads Mike Harrison, Jeremy Ozer Mark Brandau
Design Changes • Still using suspension bridge idea, but have greatly reinforced the base and have improved arm • Improvements greatly increase strength against deflection • Gone from rack and pinion to moment arm to lift weight, using the servo itself as a counterweight and grabbing the screw on the weight with a hook
Performance • Torque – maximum necessary is 48 oz-in. Motor can put out 54 oz-in • Motor generates sufficient torque to lift fully, but we are encountering too much deflection at present to reach it
Future Improvements • Further improve resistance to deflection • Drop weight of system by removing portions of baseplate • Optimize servo setup • Optimize arm lengths