Archaic Arms wrote on Dec 6
th, 2021 at 11:02am:
Any reason you opted for the arm-strap rather than just a centre grip?
Jaegoor is correct. MikeG is also on the right track. I wouldn't be worried about getting hit by a stone because the shield was moved out of the way, but having more points of contact with the shield keeps it more stable when impact occurs. This can be seen even with my setup. If you open the video and go to the slow motion hit at 15:04, you can see a hit near the edge of the shield rotates it a bit. That effect would have been worse with a center grip.
My main reason for the arm strap was the size and weight of the shield. At 27" diameter and over 14 pounds, it's definitely a hefty one. With a center grip I would have been very limited on recording time based solely on how long I could hold it up. With the weight spread over the arm, that wasn't a concern. My arm got tired, but I was never at a point where I wouldn't be able to easily lift the shield over my head. The entire recording session time was about an hour and a half.
That leads to an obvious question, why such a large and heavy shield. I wanted to make sure I was covered up well. And I also wanted the shield's own weight to be able to absorb a lot of energy. If it was taking the brunt of the force, then I wouldn't have to.
The second big reason was to disperse the impact I did get. With a center grip, the impact force would have gone right into my hand and wrist. With the straps and handle, any force I took was spread over the entire forearm.
NooneOfConsequence wrote on Dec 6
th, 2021 at 11:29am:
Now you need a remote controlled trebuchet that launches straight up.
I do want to build a small scale trebuchet. No one should be surprised if something like that happens one day.