Setup Hours Priced into a Small Batch Assembly Quote
Setup hours in small batch assembly represent fixed feeder loading, stencil alignment, and inspection programming costs that dominate unit landed pricing.
Feeder Bank Setup
Loading Sequence
Component placement discipline begins long before the first reel reaches the surface mount machine. Proper feeder bank setup dictates the mechanical alignment and physical positioning of component dispensers on the shop floor. Operators establish this configuration to guarantee accurate pick and place cycles during high speed circuit board fabrication.
Poorly locked carts introduce vibration that shifts tape pockets out of camera tolerance. Automated optical inspection systems catch these pick errors downstream during post reflow verification.
Alignment Verification
Mechanical calibration requires physical gauges and torque checks across every docked lane. Optical positioning routines measure the exact offset between the nozzle centerline and the carrier pocket. Cameras verify that the tape advance mechanism pulls precisely two millimeters per cycle without binding.
Worn sprockets cause intermittent misfeeds that trigger machine alarms and halt production lines. Technicians measure pitch accuracy using micrometers before releasing the assembly module for a production run.
Verification Protocol
Production supervisors review error logs generated by the placement head after initial lot sampling. High rejection rates during the first hundred boards demand immediate recalibration of the entire carriage assembly. Thermal expansion during extended runs alters physical dimensions and forces secondary calibration cycles.
Electrical continuity checks confirm that lane sensors communicate properly with the main controller board. Quality control inspectors sign off on the calibration record before high volume fabrication commences.