Cost Determination, Section 5.3.4.4

[Madison]

Originally Posted by KenWittlief

Richard - your SLA example is excellent. But I think you have reached the wrong conclusion.

Go back and read the rules I quoted from FIRST. You only have to account for the amount of material you actually use, whether it comes in 1Qt cans, 55 gallon drums, or 20,000 gallon tanker railroad cars.

That's not how the rule reads at all, Ken.

Originally Posted by The Rule

• The cost of items purchased in bulk or large quantities may be prorated on the basis of the smallest commonly available unit that satisfies the need for the item.

If the smallest commonly available unit of resin that is available for the SLA machine is, as Richard says, 10kg and $2500, then the team must account for that whole cost on their BOM regardless of how much of that 10kg they use.

However, if a team buys an 8' long piece of aluminum tube and uses only 3', they can account for the price of a 3' piece instead as aluminum tube is commonly available at shorter lengths.

Our team has an SLA machine on its way to the lab we borrow, so now I'm curious what sort it is and what material it uses to see if it'll be at all helpful to us.