Migrated to: https://www.printables.com/model/535227-estes-flash-e2x-18mm-rocket-motor-retainer One of our young flyers lost the motor retainer (in flight - exciting!) for the Estes Flash E2X rocket. The rocket isn't much good without the retainer, so I found something close on a 3D model site, then adjusted it to my needs with Lightwave. It seems to fit well and retain positively - though my PLA prints are likely to get soft from heat - this is not yet flight-tested. I'm expecting to print a half-dozen and keep 'em in my range box.