Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

bullet fidget spinner

by sgiacci, published

bullet fidget spinner by sgiacci May 10, 2017


Design Tools


Liked By

View All

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

Thing Statistics

2384Views 212Downloads Found in Toys & Games


Printed it in 2 pieces with the flat side down so it would be a clean print.

The notches the shells slide into are a little undersized and need some additional trimming in order to get a good fit.

You will need:

A 608 bearing

m2 8 allen machine screws
m2 12 allen machine screws
m4 8 allen machine screws

Cut down spent 45 shells to 13mm

I used this finger cap:

Print Settings

Printer Brand:




Doesn't Matter


Doesn't Matter






I used PETG, but you could use whatever you want.

More from Toys & Games

view more

All Apps

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

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

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App

This looks like it could be good, but this https://www.thingiverse.com/thing:2426147 looks way easier to make. I'm not saying I don't like this, but for anyone looking for an easy print, you're in the wrong place. If you like a challenge, stay right here.

Bullet Shell Spinner

I did one like that, but didn't like it. Too simple.

I can see how the screws might add to the look and/or the weight. While I don’t plan on making one of these, nice work anyway.

Thanks, the screws added weight to make it spin better.

The 45 shells are left overs from some I cut down (using a copper pipe cutter) for nut covers on my motorcycle. I had a really hard time cutting down 9mm (a dainty round), so it would have to be modified to fit a full length round. Result, don't expect to see a 9mm version any time soon, because it could end up making it too long to work. Plus I don't have access to spent rounds for the next few months.

Now this is a spinner. It's got plenty of detail and it involves one of my favorite things!!!! Great job! and I second the 9mm version please!

can you make a 9mm version?