3D Printed Rear Ejection Rocket

[atlcdp]

This is printed in two parts, top and bottom, to fit into an Ender 3 v2 printer. I've attached the STL files if anyone is interested in trying to print one. All I ask is that you let me know how it came out. The rear ejection mount is for a 24mm motor and fits inside a 30mm tube inside the rocket. As the rocket is in two pieces, it could be adapted to use a standard forward ejection.

 

[lakeroadster]

Have you flown the rocket? My mindsim says unstable... but it may need recalibration.

 

[atlcdp]

Have you flown the rocket? My mindsim says unstable... but it may need recalibration.

Not yet. I may need to add some weight to the nose. It weighs 133g minus the motor.

 

[lakeroadster]

Not yet. I may need to add some weight to the nose. It weighs 133g minus the motor.

Since you have it printed.... throw a motor in it and a chute... and swing test it!

Cool retro design.

 

[emmah]

This is extremely cool and I really want to press the buy button on a Prussa or Ender*.

*If y'all want to argue the merits of those respective printers, I'm sure there's a thread on this site for that purpose.

 

[neil_w]

Not yet. I may need to add some weight to the nose. It weighs 133g minus the motor.

My mindsim says it is not in the same zip code as stable. Proceed with caution. Also, this can be simulated in OR or Rocksim.

 

[lakeroadster]

Here's a rough and dirty Open Rocket Simulation. Making this one stable, I'm pretty sure, is not possible without some major design changes.

It's hard to make these classic old school cool Sci-Fi rockets fly... in a straight line.