This is for an engine mount for the Mars Lander by mech-G. This rocket is the best model I have ever printed and launched. The classic style and moving legs add to the fun. In the original model, motor mount would warp due to engine heat. To solve this problem, I designed several parts to be printed in PETG (PLA does work as it is supported by the body tubes but the PTEGs higher temperature seems to work better over the long term). I combined these with a BT-60 (97.3mm long), a BT-50 (69.95mm long) and a D size engine clip. With this new motor mount, I have successfully launched many times.