We are proud to keep 3d printed structure parts in our kits. The good side effect is that it makes us work on a smartrapcore alu farm in production.
We use actually 3Dprinteros.com to manage all that . Wonderful solution .
https://www.youtube.com/attribution_link?a=OsHmqVeq-Yo&u=%2Fwatch%3Fv%3Dx51vfYFjiV0%26feature%3Dshare
chudai