Airwolf 3D Catapult
by airwolf3d, published
<h1><span style="color: #ff0000;"><strong>Functional catapult</strong></span></h1> Here is a rendition of a<strong> truck/catapult</strong> combo.
The idea started when we bought a wooden toy from the hardware store that had to be glued and hammered together.
From scratch, we created the following design-enjoy!
You can read more about it at http://airwolf3d.com/blog/2012/10/16/download-and-3d-print-our-functioning-catapult/
Recent Commentsview all
Liked Byview all
Give a Shout Out
Slice the stl file with your favorite slicer-we run one outer perimeters at 100mm/s and use 35% fill with Slic3r.
<span style="color: #0000ff;"><em>Note: Â No support is necessary if you have decent bridging ability. Â </em></span> <ul>
<li>After the part is printed, use an exacto to trim as necessary.</li> <li>To clean up the holes (and make assembly easier), use appropriately sized drill bits.</li> <li>Thread 1 M4x25mm bolt through the catapult base (optional opening for M4 nut on the opposite side included).</li> <li>Then thread 4 M3x10mm bolts through the wheels and into the corresponding holes in the frame.</li> <li>Attach a rubber band around the catapult and bumper and you are good to go!</li>
</ul> Be careful <span style="color: #ff0000;"><strong>not to hurt yourself or anybody else</strong></span> - this a tough design that can launch items up to 20 feet!