Functional Bicycle

by thomasgivan, published

Functional Bicycle by thomasgivan Apr 24, 2014
11 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps


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

22096Views 7928Downloads Found in Vehicles


This was made for my final project in my 3D Printing class. It is a functional miniature bicycle with moving handle bar, moving wheels, moving crank, and moving pedals. Spinning the pedals spins the back wheel once a rubber band is added. Assembly required. Some sanding required as well. All bike parts were taken from AutoDesk and constructed in TinkerCAD.


The handlebar must have supports and must have the supports fully removed and sanded. The large cylinder in the "all_pedal_parts" file connects the two cranks. The part in "all_pedal_parts" that holds the chain and has a hole going through it entirely will go on the large cylinder next to the right crank. The other part that holds the chain (with a hole going through half-way) will need to be glued to one of the axels, on the outside of the right side of the frame. Then one wheel will need to be glued to that axel, on the inside of the right side of the frame. The other axel will need to be shortened and glued to the other wheel to be put in the fork connected to the handlebar. The small rods in "all_pedal_parts" go through the foot pedals and into the small hole in cranks. You will need to sand some of the pedal parts.

Instead of sanding the axels, you could make the holes bigger for the front and back wheel axels in the handlebar and frame (in a modeling software or with a power drill like I did).

Make sure the back wheel is aligned as perfectly as possible with minimal rubbing on the frame when spun. This is the trickiest part. Attach a small rubber band to the pedal and back wheel to make sure the back wheel spins easily.

Then when you have the back wheel ready and the handlebar ready, you are ready to glue the two frame halves. When glueing, make sure the handlebar is in place and the back wheel axel is in place. Then the left crank and pedal can go on, glued if needed. When the rubber band is attached, you should have a fully operational miniature bicycle!

More from Vehicles

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

Print through a distributed network of 3D printing enthusiasts from across the US, at a fraction of the cost of the competitors. We want to change the world for the better through technology, an...

App Info Launch App

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App

Treatstock is an online platform that offers decentralized manufacturing services such as 3D printing and CNC machining for clients all over the world. We offer free and instant access to comparati...

App Info Launch App

3D print your favourite design with NinjaPrototype, a professional 3D manufacture with consistent quality and speed.

App Info Launch App

Amazing design!!! Could you post the bike in one piece as well? I would need this for a 1:24 Diorama.

I would love it if you would share the source files too.
I printed the files as they are, but the handlebar part doesn't fit in the frame - the rod on the handlebar that goes in the hole on the frame is too short, so I need to make the rod about 2 mm (1/16 inch) longer.

I was unable to find the original source of the handlebar before I edited it, but I have uploaded a new file with the rod separated from the handlebar. Hopefully it will be easy to edit the length of the rod to your liking in a program like TinkerCAD. I hope this helps.

Thanks, that should solve the problem :-)

By the way, the center-holes in the "chain"-disc parts are off-center. Fortunately they were easy to reproduce in TinkerCad.

Hello. I want to know if you have used 1.75 mm or 3 mm filament for printing this bicycle?

I'm printing it using 1.75 mm ABS right now. But the filament diameter should not affect the print. Unless you plan to print it in NinjaFlex or similar.

What is the size of the bike ready?

It's about 10.5 inches long, 6.5 in. tall, and the widest part (the handlebars) is about 3.75 in.

got all parts to print but left side frame is hollow is some spots using simplify3d tried to fix no luck

I just uploaded a few extra parts for anyone that loves there bike as much as i do mine. Thanks thomasgivan for this wonderful bike. The parts are: A printed basket, kickstand and nameplate. The items can be downloaded and printed here: http://www.thingiverse.com/thing:685265

Enjoy, Rick.

Bike extra parts

i have to print this -