Torsion Catapult (As big as a Smart Car!!!)

A (Mangonel) Siege Onager I constructed as an extra credit project for my ancient history class. It is made out of old wood and some rope. It will chuck almost anything that can fit in the sling.
The specs are:
8'x3' dimensions
1/2" nylon rope.
"Pin" type firing system

Category:

Science & Technology

Tags:

• Siege
• Onager
• Mangonel
• Ropes
• Machine
• Ancient
• Torsion
• torque
• Replica
• Catapult
• Smart
• Car
• extreme sports
• archery
• outdoors
• stunts
• mod

[LegoScout09]

about how many times did you wrap the ropes?

[m5burndt]

@LegoScout09 I'm not sure, i know it was 1/2" rope, and i think it was about 50'. The frame was about 3.5' wide, so 50/3.5=14.285so about 14 times. Really you want to just wrap as many times as you can fit.

[attackofthehog]

What did you use to keep the rods holding your rope from digging into he wood?

[m5burndt]

@attackofthehog Nothing, which was a bad idea. As a result it dug very deep grooves into the wood and really tore it up. I would suggest reinforcing that area with a respectably sized steel plate.

[nerf986]

would you be able to tell me the measurements of the catapult plzz reply

[m5burndt]

@nerf986 the basic frame is approximately 8'x3'. The swing arm is 6ft long and it is wrapped with 1/2" nylon rope.

[CoolUserName2010]

The ultimate dog toy

[thebmxperts2425]

ya lacrosse rules!!!!!

[BullsEyeBenny83]

That's pretty cool man

[xenezort]

nice



[wolfgagger]

sorta a trebuchet firing sling type thing with a torsion feel

[SpudNip17]

But, will it blend?

[sunotar]

i suggest a better system for getting the arm down you are going to knock your head off some day

[bradley666333]

when u loaded it I could picture u slipping and the arm coming back up and taken ur face off,lol...pretty sweet though

[nerf986]

@attackofthehog its only 4feet high by 4 feet wide but ive secured it loads