To contribute to the purchasing effort I came up with a way to split the contribution from what you're getting out of this project. So this list is only for the initial contribution and for follow up commitments the contribution to the purchase of the machine will be less over time, as the "remaining" machine cost diminishes over time.

Package name Contribution amount Reward PLA (Kg) Scraps required (Kg) Cost/kg output
2.5Kg contribution € 50 2.5 1.25 € 20
5Kg contribution € 75 5 2.5 € 15
10Kg contribution € 120 10 5 € 12
20Kg contribution € 220 20 10 € 11