This is a remix of Flexier Rex made to work better with Dummy 13 parts.

Flexier Rex already moves great, but Dummy 13 has a huge mod ecosystem, so I added ATAB ball joints to the back so it can hold Dummy 13 weapons and accessories for when you need something else to go with dummy 13. It keeps the original flexibility and just adds more options.

Printed in no name PETG, but feel free to experiment. The model is meant to be remix-friendly, so tweak it, improve it, or build on it however you want the joints are for 100% ATAB or dummy scaling it up should have it fit with other sizes as well.

Big credit to DrLex for Flexier Rex and All Terrain Assault Benchy © 2025 by Lucky 13 Toys is licensed under CC BY 4.0 — this remix wouldn’t exist without their work.