Siege Engine.com: Onager Jr : Zucchini Upgrades

Treatises Engines Of War Engineering Battles Spare Parts Plunder
Onager Jr : Zucchini Upgrades
Share this page
Search

In 2005, Onager Jr was destined to go to the zukapult contest in Ludlow Vermont. To accomplish this, Onager Jr needed to be upgraded to throw projectiles smaller than it had done so in the paste.

You can read about the Zukapult contest at either the `Zukapult` contest since 2004.
As Ludlow Vermont is only a couple hours away, I felt it was important to pull one of
our active catapults out of storage and go compete.')">2005 Zukapult page or the `Zukapult` contest since 2004.
This was the second year I brought Onager Jr out to compete in the wilds of Vermont.')">2006 Zukapult page.


2005 Upgrade

The basic upgrade here is to add a lift-kit. This brings the machine farther off the ground, and allows the sling to be extended. Longer slings allow the projectile to be lighter and be slung up over the top of the pin. In the movies section, you can see what happens when a too-small onion is thrown with the old style.


2006 Upgrades


The lift-kit frame proved to be a bit on the wobbly side, so I added braces to the outer legs. This made it stronger when flipping the machine over for tightening.


After the 2005 contest, and some fun with a highschool in Connecticut, the upper frame came close to complete failure. I disassembled the upper frame, and rebuilt it with better bolts, and gussets.


I replaced one of the epizygis with a new longer one. The short epizygis always was challenging to torque up the machine with, so the longer version should help.

A nice fresh coat of paint doesn't hurt either.


In addition, to prevent the snapping of more bundle strands, I added epizygis caps. This increases the diameter of the bend in the rope, and thus extends rope life. This is made from conduit, which I split open with a chop-saw. While the metal conduit is quite malleable, the support of the steel beneath it allowed it to perform it's job well, even under stress without deforming.

In addition to the caps, I also rewound the machine with 200 feet of 3/8" nylon rope.


Ready to go at the `Zukapult` contest since 2004.
This was the second year I brought Onager Jr out to compete in the wilds of Vermont.')">2006 Zukapult contest where we had a long throw of 200ft at a medium torque.


Additional Pages for Onager Jr
Onager Jr Onager Jr was our first torsion siege-engine of the medium scale that functioned well.
Onager Jr: Construction Onager Jr's basic construction is fairly simple. I thought it would be neat to make something that didn't use screws, but after assembling the bottom, screws were needed for much of the upper frame, and for the strengthening of structural members later.
Onager Jr : Flinging potatoes Loaded onto the car and ready for a drive to family reunion. I had finished it this morning, and the first test shot was 3 feet. How dissapointing.
Onager Jr : Rocks in Maine We rebuilt the machine, and brought it to Maine to fling rocks into the mud flats. We had rebuilt the breaker bar to be sturdier than before, and also added a winch.
Onager Jr : Upgrades After our trip to Maine, Onager Jr was used again at the 2001 History Channel Chunk, and at the 2001 Bennington High School Chunk. At the end of those two adventures, our third canvas pouch had disintegrated.
Onager Jr : Zucchini Upgrades
(This Page)
In 2005, Onager Jr was destined to go to the zukapult contest in Ludlow Vermont. To accomplish this, Onager Jr needed to be upgraded to throw projectiles smaller than it had done so in the paste.
Onager Jr : Movies Here are some videos of the little guy in action. They were all taken during the 2001 History Chunk.


Buy a Mangonel
 
 
Home
 
Onager Jr
Construction
Flinging potatoes
Rocks in Maine
Upgrades
Zucchini Upgrades
Movies
 
Treatises
About
Philosophy
Members
Logs
In The News
Sponsors
Contact Us
Copyright
 
Engines Of War
Micro Treb
Baby Trebuchet
Treb Jr
Juggernaut
Juggernaut 2
Higgs
Pumpkin Putter
Baby Ballista
Ballista Jr
Mista Ballista
Baby Hatra Ballista
Hatra Jr
Baby Onager
Onager Jr
UTM
Baby ASOK
Cardan Treb
Scissor Treb
Kid-A-Pult
Vacuum Bazooka
Air Cannon Jr
 
Engineering
Frames
Slings
Triggers
Torsion
Winches
Centripetal
Advice
 
Battles
Extreme Chunk 2016
Extreme Chunk 2015
Punkin Chunk 2013
Higgins Siege The Day 2013
Punkin Chunk 2012
Punkin Chunk 2011
Punkin Chunk 2010
MathWorks 2010
Punkin Chunk 2009
Zukapult 2009
History Chunk 2009
Punkin Chunk 2008
Zukapult 2008
Punkin Chunk 2007
Flying Chunk 2007
Punkin Chunk 2006
Zukapult 2006
History Chunk 2006
Punkin Chunk 2005
Zukapult 2005
Punkin Chunk 2004
Punkin Chunk 2003
Bennington HS 2002
Punkin Chunk 2002
Mohonk 2002
Mt. Snow 2002
Bennington HS 2001
Punkin Chunk 2001
Busti Hurl 2001
History Chunk 2001
Punkin Chunk 2000
Punkin Chunk 1999
Punkin Chunk 1998
 
Spare Parts
Random Picture
All Videos
Art
Seuss Trebuchet
Seuss Onager
Night Before Chunk
Pillsbury Cartoons
Cartoons
Dave Gets Married
Roger Gets Married
Geek Calculator
Browser Hurling
Search
 
Plunder
Catapult Kits
Catapult Plans
Books
 
Contact: Team Tormentum
Copyright © 2000-2016 Eric M. Ludlam All rights reserved.
Twas' brillig, and the slithy toves did gyre and gimble in the wabe...
Last Modified: 11/26/16