Model Rocket Engine Test Stand - Part 2

Introduction 
This brief post continues from the previous model engine test stand post with an updated stand for D-sized rocket engines.

Engine Holder in Fusion 360

Model Change
As noted in a prior post, the D-sized engine did not slide easily into the test stand, and it did not suit engines that may have expanded after being left packaged for some time.

The test stand below was printed in 316 stainless steel at JLCPCB.

Engine Holder with D Engine

The test stand below was also printed in PLA+. 

Engine Holder with D Engine

Bench test of the test stands.

Downloads

D Engine Step File