pic: "You should never go against a robotics kid"

[ATannahill]

You're fighting over whether this is a catapult or a trebuchet? I feel you time and effort is being used as well as if it went towards the game hint.

[martin417]

Originally Posted by rtfgnow

You're fighting over whether this is a catapult or a trebuchet? I feel you time and effort is being used as well as if it went towards the game hint.

Game hint? you mean the picture of a fish? The one that has a topic with over 700 posts discussing a picture of a fish? what else can be said about a picture of a fish that hasn't already been said? This catpult / traction trebuchet is a whole lot cooler, and is much more interesting.

[samir13k]

the trebuchet is probably also more relevant to the game then the fish also

[EricH]

Originally Posted by samir13k

the trebuchet is probably also more relevant to the game then the fish also

Catapult/trebuchet/launcher throws the fish across how far???

Hey, could you guys find an opah and launch it, just to relieve everyone's stress around here (and discussion of the game hint)?

[gorrilla]

how did you make it realease on end of the sling at the right time? or was it just try-bend?

[Eugene Fang]

Originally Posted by gorrilla

how did you make it realease on end of the sling at the right time? or was it just try-bend?

If you look closely at the picture on the right (the CAD does not have it) there is a piece of 1/4" aluminum coplanar to the main arm that has a slight V shape cut out. The release angle wasn't perfect (was about 35 degrees I think) but it was good enough. And since it was luck that it went at that angle on the first try, the group decided to just keep it that way.

[dtengineering]

Originally Posted by rtfgnow

You're fighting over whether this is a catapult or a trebuchet? I feel you time and effort is being used as well as if it went towards the game hint.

First of all, I don't think anyone is "fighting" over anything. There is a polite, rational discussion going on as to the appropriate terminology to use when referring to this design. Precision with words is equally as important as precision in drawings, or in machining. Often it is more important!

But I do appreciate the humour in the statement.

Jason

[Eugene Fang]

I think we decided to call it a "Catachet"

Sounds French...

[ComradeNikolai]

Originally Posted by Pikat

I think we decided to call it a "Catachet"

Sounds French...

Or a "CAD-achet."

[joshy1323]

my school security guards flipped out when we were test firing our robotic t-shirt cannon because they thought it was a weapon so we arent aloud to make stuff like that anymore lol. great job by the way... i sure wish i had one

[Akash Rastogi]

Originally Posted by joshy1323

my school security guards flipped out when we were test firing our robotic t-shirt cannon because they thought it was a weapon so we arent aloud to make stuff like that anymore lol. great job by the way... i sure wish i had one

Lol, that's why you should usually let school admin know what you're up to with stuff like that

[Eugene Fang]

Originally Posted by lilstogi11

Lol, that's why you should usually let school admin know what you're up to with stuff like that

Our school actually asked us to build a t-shirt cannon for rallies, and they actually reimbursed us on the cost of the parts, so that was pretty cool.

[Rick TYler]

RE: What it's called?

First of all, I call it "cool"!

Trebuchets were the ultimate development of the stationary flinging-arm military weapon, but by the 14th century they were being overtaken by early cannon. Since no one alive now speaks a 14th century dialect, we are unlikely to be using the proper name in 21st century English, especially since I doubt medieval siege engines used in probably dozens of different kingdoms, duchies, and counties were all called the same thing. I believe were are applying our modern passion for rigid definitions to devices created in a time where no such cladistic hegemony existed.

[Akash Rastogi]

Originally Posted by Rick TYler

RE: What it's called?

First of all, I call it "cool"!

Trebuchets were the ultimate development of the stationary flinging-arm military weapon, but by the 14th century they were being overtaken by early cannon. Since no one alive now speaks a 14th century dialect, we are unlikely to be using the proper name in 21st century English, especially since I doubt medieval siege engines used in probably dozens of different kingdoms, duchies, and counties were all called the same thing. I believe were are applying our modern passion for rigid definitions to devices created in a time where no such cladistic hegemony existed.

Not entirely sure but i believe the term was changed during the Mongolian rule of Central Asia... or at least the Khan or Seljuk Turks created a different type and changed the terms..

[BornaE]

doesn't a trebuchet have a mass one one side of its arm instead of surgical tubing?