Variations to Manufacturing orders and stock/pricing

Hi All
Part of my business is making up hoses.
To make each hose, we have 3 products, and one service. one of which can change in qty.
2 products make up the hose ends, and then we have the hose.
The hose quantity can change to alter the length of the manufactured hose.
How can I do this??

BOM and Manufacturing order modules. :slight_smile: