Instructables

MakerBot Spool Ferris Wheel

Featured
Picture of MakerBot Spool Ferris Wheel


Using a MakerBot spool and 3d printed parts, I made a ferris wheel for frogs.

The 3d printed part files are here:

http://www.thingiverse.com/thing:49477

This ride is part of Froggy World, the amusement park for adventurous plastic frogs.
 
Remove these adsRemove these ads by Signing Up

Step 1:

Picture of
ferris03.jpg
Start with a MakerBot filament spool.  Remove the label.

Step 2:

Picture of
Take a printed seat and run a paperclip through the hole in one side.

Step 3:

Picture of
Do the same on the other side, making large hooks to hang on the cross rod.

Step 4:

Picture of
ferris07.jpg
Add the cross rod by drilling holes in the spool and screwing the rod in place.  Hook the seat on the rod.

Step 5:

Picture of
Cut two supports, 125 mm wide at the base, at least 75 mm wide at the top.  One is 127 mm high, the other is 117 mm high.  They are cut from 1/2 inch plywood.  Fasten a 75 mm by 25 mm piece of 1/2 inch plywood to the top of each support.

Step 6:

Picture of
Add a continuous rotation servo to the taller base.

To convert a servo to continuous rotation, go here:

http://www.instructables.com/id/How-to-modify-a-servo-motor-for-continuous-rotatio/?ALLSTEPS

Step 7:

Picture of
ferris14.jpg
Insert a 120mm long 1/4 inch diameter rod in the axle cylinder.

The rod should be flush against the end of the cylinder where the two holes are located--the rod will push against the servo horn to keep it on the motor.

Step 8:

Picture of
Secure the supports on a base (I used 12 inch by 12 inch 1/4 inch plexiglass).

Step 9:

Picture of
Add the servo horn to the end of the axle cylinder.

Step 10:

Picture of
Insert the cylinder through the MakerBot spool.

Step 11:

Picture of
Push the other end of the axle rod into the bearing (vxb.com) on the bearing holder.  Screw the bearing holder into the support.

Step 12:

Picture of
ferris23.jpg
ferris21.jpg
Add riders (the frogs were made from clay by my wife).  Provide 1.5 volts to the motor, and the action begins. 
Pro

Get More Out of Instructables

Already have an Account?

close

PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.

Upgrade to Pro today!