The metal parts to be used on the Echo assembly line were produced in an automated

machining center on any one of six $(6)$ identical machines. Each Echo fuel dispenser required eight

$(8)$ machined parts. The machines were flexible so that any one of the six machines could work

on the parts as needed. The average production time per part was $12$ minutes. Raw material before

the machining center consisted of parts waiting to be processed, and post$-$production work$-$inprocess was held in an inventory buffer. The machining stage worked on $1$ batch of $40$ dispensers

at a time. What is the capacity of this stage in dispensers per day?