Loading

Integrated Fin Can for supersonic flights on 38mm minimum-diameter rockets

by Jurvetson, published

Integrated Fin Can for supersonic flights on 38mm minimum-diameter rockets by Jurvetson Jan 11, 2015
1 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps
Tip Designer Report Thing

Thing Info

2023Views 153Downloads Found in Sport & Outdoors

Summary

I have flown this several times to Mach 1.9 (according to RockSim) since the fins are perfectly aligned every time. All you have to do is print it (10% fill, normal speed print, with rafts) and epoxy the fin can a quarter-inch or so above the bottom (so you can use a ring of duct tape for motor retention) of a 18" (or longer) strong 38mm motor/body tube (it is perfectly sized for Blue Tube) and tape a golf ball to the top (range balls are free nose cone + weight, which you will need). If you have extra epoxy, lather it on the fins for a smooth finish and extra strength. The launch rod lugs, rail guides (which I highly recommend for rigidity) and fin fillets are built into the print. Ready to fly in 5 minutes with single use Aerotech motors (I have flown the J270, I140 and I280 to go supersonic).

Launch photos: https://www.flickr.com/search/?text=3d%20print%20rocket&sort=date-posted-desc&user_id=44124348109%40N01

Here is a talk I gave on 3D-printing and rocketry at MakerFaire: https://www.youtube.com/watch?v=IBMMPBpZeHo

Blue Tube supplier: http://www.alwaysreadyrocketry.com/about-us/blue-tube-2-0/

For 38mm flights, I also add a cheap aluminum GLR rail guide to the upper part of the motor/body tube (don’t use a rod for I or J motors; when I did, it snapped two legs off of my Aerotech Mantis launch pad, laying it flat! That’s some serious whiplash!): https://giantleaprocketry.com/products/components_launch_systems.aspx#Acme_Conformal_Launch_Guides

Single use Aerotech motors (can only be sold to people with Level 1 or Level 2 certification): http://www.wildmanrocketry.com/ShowProducts.aspx?Class=82&Sub=107&Sub1=118

More from Sport & Outdoors

view more
Tip Designer Report Thing

Thing Info

2023Views 153Downloads Found in Sport & Outdoors

Makes

Liked By

View All
Bre Pettis

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag. Print Thing Tag

All Apps

3D Print your file with 3D Hubs, the world’s largest online marketplace for 3D printing services.

App Info Launch App

This App connects Thingiverse with Makeprintable, a cloud-based mesh repair service that analyzes, validates and repairs most common mesh errors that can occur when preparing a 3D design file for p...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Really cool! Love what you are doing with space x.

Top