|General Chat MCB's Coffee House: Pull up a seat, and grab your favorite caffeinated beverage. Non-paintball related chat within.|
| ||Thread Tools|
|10-24-2012, 02:22 PM||#1 (permalink)|
Building a trebuchet
Have any of you folks built a trebuchet?
I am building one for a competition and I'd like to see what other folks have learned from positive and negative experiences to make their machine run optimally. Whether it be dimensions, materials, structure, or other factors that input into the physics of the trebuchet.
I already have some kind of plans drawn up, but I don't have hands on experience of using one to actually know what has to be what, what the weight should be, how to make the hinge strong, yadda yadda.
I'll be launching 5-10 pound pumpkins and don't have the materials to make a giant war machine. I've looked online, but it's mainly just videos of a bunch of rednecks chucking pumpkins (I guess that's going to be me, right
I'm looking for something around this size, maybe a tad smaller.
Any help is appreciated!
Feedback - http://www.mcarterbrown.com/forums/f...-feedback.html
Last edited by Bigtuana; 10-24-2012 at 02:26 PM.
|10-24-2012, 03:45 PM||#2 (permalink)|
MCBs armed pacifist
Join Date: Jun 2009
Location: West Michigan
Lets talk about this. I think a paintball trebuchet could be done. Load it up with a pod or two of paint (not the pod) and release it. IT woud not have to be very big and could be aimed towards the center of the field.
"In the essentials: unity; in the non-essentials: liberty; in all things: love" - often incorrectly attributed to Augustine or John Wesley - original source in question
"Use peaceful means where they are appropriate; but where they are not appropriate, do not hesitate to resort to more forceful - Thupten Gyatso (the Dalai Lama, 1932)
"It is not the will to win that matters - everyone has that. It's the will to prepare to win that matters" Coach Paul 'Bear' Bryant.
"The ink of scholars is more precious than the blood of martyrs" - Muhammed
|10-24-2012, 03:49 PM||#3 (permalink)|
Join Date: Apr 2012
Location: Bucks county, PA
built a couple 4ft trebs and one 12ft which was a very good design. I can try contacting the person with the plans for the 12ft one. It was strange and worked well.
When the going get tough, the tough get naked.
And when the naked get tough it's time to drink.
If we have done business or you have feedback please post it here. Thank you for your input.
|10-24-2012, 06:37 PM||#8 (permalink)|
Join Date: Dec 2011
Location: new york
Oh I built one last year, it was small and launched cherry bombs, it twas awesome!
Nelspot 007 Back Bottled>
Check out Liberty Paintball in NY-
|10-24-2012, 06:43 PM||#9 (permalink)|
brassmage and necrotech
Join Date: Jan 2007
Location: cape may, new jersey
i built one years ago, took a while to get the 'timing' just right, it's a balance between arm length, weight, rope length, and release hook angle. easier to time a cocker. here's an old vid of it with 'late timing', releases late, shooting the 5 pound weight into the ground:
trebuchet Video by ian - Myspace Video
edit: and some heavy math:
Chaotic Creations Ltd. http://www.mcarterbrown.com/forums/a...ml#post2095803 ---currently buried in work!
looking for: working ATS preferably with straight asa, brass sheridan donors/bits, vert feed micromag/ule body, green/camo SP wood grips for cf frames
happy with me? http://www.mcarterbrown.com/forums/f...-feedback.html
|10-24-2012, 06:44 PM||#10 (permalink)|
Brass Monkey Customs
The Algorithmic Beauty of the Trebuchet
Trebuchets, both big and small
There are loads more... My experience has been to get the ratio on the arm correct for the best firing characteristics. I use 11 foot thorwing arm to 1 foot counterweight arm, with a sling of 4 feet. YMWV
Brass Monkey Customs
Brass Freak compatible and Equation inserts in .665, .670, .675, .678, .680 and .685
Still selling brass tubing, with .678 barrel stock now available!
My feedback: MCB - eBay - AO