We started with 30 pennyweights of bronze casting grain poured into the crucible. The start time was 2:12 and the finish time was 2:20.
|878.7||Initial heat of flame|
|1217||First metal temp|
|1276||Second metal temp|
|1624||Third metal temp (flask goes in)|
|1700||Pin dropped, spinning|
|998||Flask is removed|
|889||Still red (do not quench)|
|505||Quenched, hot after smoothing|
|Weight (raw, pre-cut metal)||48g|
|Weight (with sprues cut off)||24g|
This table shows how long it took to create the circle on the piece of metal using the compass tool.
|Name||Start Time||End Time|
2:40-3:30 PM was spent filing the inner and outer circles with a saw (about 50 minutes total, with 40 minutes spent on the outer circle and 10 spent on the inner circle per person).
0 thoughts on “Brooch Making Group C Data”