Assembly of American Chopper

CHOPPER ASSEMBLY

• Open Assembly model and select Unit system as MMGS.
• Chassis is made to fix automatically at the standard planes.
• The engine is brought in to the assembly. The bottom face of chassis is made coincident to the top faces of plates at bottom of chassis. Front faces of the engine mounting and the plates at chassis are constrained to 20mm distance (Distance Mate). Chassis midplane and engine front plane are coincident.
• The pedal is brought in to the assembly. Boss extrudes of the pedal are made concentric with the holes at extrude of chassis and a distance of 1.5mm mate is applied between the faces to avoid the interference with the front tubes of the chassis.
• The pedal is mirror patterned about the midplane, select the appropriate orientation, and don’t break the link to the original part.
• The kickstand is brought in to the assembly. Extrude at kickstand and cut at the chassis are made concentric. Faces are made coincident. Apply limit angle mate to the kickstand with 64 deg angle.
• The transmission belt is brought and edit the short circle radius to fit the pulley. Larger circular face of the belt is made concentric with the large pulley. Width mate is applied between the faces of the belt and the faces of the pulley. 7 deg angle mate is applied on the top face of the engine case and atop the face of the belt.
• The rear wheel is brought in to the assembly. Midplane of rear-wheel and chassis are made to coincident. Concentric mate is applied at the axle of chassis and hole of the rear wheel. Parallel mate at front plane of rear-wheel and face of the backplate at chassis is applied.
• The rear fender is brought in to the assembly. Concentric mate is applied between the rear wheel and the fender edge. Midplane of chassis and fender are made coincident. The vertical plane of the rear fender is made parallel to the face of the backplate of the chassis.
• The oil tank is brought in to the assembly. The oil tank is placed on the engine case by applying coincident mates i.e. one coincident mate is between faces and the other coincident mate is between the edges. Midplane of oil tank is made coincident with the midplane of the chassis.
• The chain is brought in to the assembly. One exact opposite set of faces of out the link or in link plates are selected to apply width mate with the faces of the sprocket. The larger arc of the chain path in the sketch is made concentric with the axle of chassis. Centre plane chain is made parallel to the bottom plane of chassis.
• The gas tank is brought in to the assembly. Midplane of chassis is made coincident to the midplane of the gas tank. Plane2 of chassis is at a distance mate of 15mm with front plane of the gas tank to avoid interference at the rear end of the gas tank and rear fender. Bottom plane of the gas tank and FTank plane of chassis are made coincident.
• The front fork is brought in to the assembly. Concentric mate is applied at the handlebar. Width mate is applied between the clamp plates of the fork and the faces of revolving if chassis at the handle. Limited angle mate of +30 deg and -30 deg is applied between midplane of fork and midplane of chassis. To position the fork, midplanes are made to coincident and this mate is suppressed.
• The front wheel is brought in to the assembly. Cut extrude at the rim of the front wheel is made concentric with the axle at the front fork. Midplane of the fork is made coincident to the midplane of the wheel. Front view plane of fork and front plane of the wheel are made parallel.
• The front fender is brought in to the assembly. Front view plane of fork and vertical plane of the fender are made coincident. Centre plane of fender and centre plane of the wheel are made coincident. Midplane of fender and midplane of the wheel are made to coincident.

Updates for the components in assembly to avoid interference.

Make use of isolate whenever needed to edit by showing only the components to update while the remaining are hidden.

• In the engine, Front exhaust pipe’s sweep profiles are updated to avoid interference with chassis and the engine case.
• In belt, shorter arc’s radius is increased.
• In rear wheel, profile for the cut at teeth is rotated and aligned with the pins of chain to avoid interference between the rear sprocket and chain pins.
• In Chassis, a new cut-out is made at the backplate to avoid interference between chassis and the chain.