September 16, 2014 by teampendragon

Snohomish Pumpkin Hurl 2014

September 16, 2014 by teampendragon

New Catapult Message Board

I’m a bit late in posting this, but the folks at team Urban Siege have set up a brand new forum for catapult enthusiasts at HurlingForums.com.

April 23, 2014 by teampendragon

Torsion Whipper

Another thing on my to-do list is fixing up the Torsion Whipper. The two main problems are 1) the lack of a proper arm stop, and 2) its unreliability.

The first problem is already taken care of, and the key to fixing the second is making a more reliable sling-trigger.

Videos from a few years ago:

March 14, 2014 by teampendragon

Blast From the Past

I was going through some old files and found the earliest photo of my Pendragon (Ally-Oop at the time) trebuchet:

This pic is from Spring 2003. The TV on the left is one of the first things I threw with it!

March 8, 2014 by teampendragon

YouTube Video: Burlington 2012

I realized I haven’t uploaded any recent Burlington / Snohomish videos lately, so here’s the first one. Drill Sergeant makes a few appearances.

March 6, 2014 by teampendragon

Drill Sergeant, Pt. 2

So the chain drive is mostly done and everything seems to be lined up fine. All that is needed is to make some reinforcements, drill a few holes (so it can be pinned to the pulley shaft) and paint it.

February 28, 2014 by teampendragon

Drill Sergeant

Now that winter is mostly over I can finally start to work on the projects I’ve been putting off- including doing some more testing with my baseball-and-mini-pumpkin-hurling, drill-powered slinged-centripetal machine.

One of the things I’ve learned about these types of machines is how powerful drag can be, even with a small machine like this. One suggestion I got was to use two drills, so that’s what I’ll be trying next.

So the plan is to make something like a transfer case in a 4×4, but in reverse- use a chain drive to combine two power sources into one. Right now it’s almost done, I just need to make sure everything is lined up properly and attach it to the machine.