Torque Bow Help.

[Darkslitter]

I was thinking about making a working torque bow but I don't know what I can use for the retraction and release. I was wondering if any of you guys knew a possibly way or could help me find a way to make it work. I'd want something with a motor that could be released with a button.


Thanks

 

[sirblood]

How large of scale are you talking? Man portable, or something that will have a trailer hitch on it? A smaller version you could use a modified solenoid as a relase, for something a lot larger its going to take something with more pulling power to release.

 

[xalener]

A drill and a gear (lulz) and chain mechanism?

 

[Darkslitter]

Its going to be about a normal human scale. So I was thinking mabye an RC motor with a metal spool and some metal wire. I don't know how electronics would work so I'd need some idea of how to make one.

I'm talking about the Torque bow from Gears of War.

 

[ChaoBreeder]

GOW 1 or 2? Because I think they are different.

 

[S1l3nt V1p3r]

GOW 1 or 2? Because I think they are different.

That's like asking what the difference between the BR from Halo 2 and Halo 3 is. Nothing, just improved graphics.

How about a Crossbow/Catapult mechanism? That might work in miniature as well.

 

[Darkslitter]

That's like asking what the difference between the BR from Halo 2 and Halo 3 is. Nothing, just improved graphics.

How about a Crossbow/Catapult mechanism? That might work in miniature as well.

I don't know exactly how those work but i was looking for something I could make electric I could use a push button for retracting the "wings"

 

[xalener]

That's like asking what the difference between the BR from Halo 2 and Halo 3 is. Nothing, just improved graphics.

well...

not quite...

 

[LastSpartan]

If I were you, I wouldn't do it functionnal. The stress on the parts since it's acting like a crossbow would break after a while.

 

[Darkslitter]

If I were you, I wouldn't do it functionnal. The stress on the parts since it's acting like a crossbow would break after a while.

I was planning on making it using sheet metal so I think it would be pretty durable.

 

[sirblood]

You are going to have to do some searching, but you can get trailer springs. They are called leaf springs if I remember right. They would work perfectly and you can layer them to get more power... I know you can get some very large ones if you custom order them you will just have to decide on what size you are interested in.

You can also look for 'flat springs' they are essentialy the same thing

You're just going to have to make sure you have them VERY securly attaches as you can easily get a few TONS of torque if you want it. You can get 12 V automotive winches for under $100

You can get very small ones also if you are more interested in something you can physically carry around.

 

[box o crayons]

and the torque bow in gears of war is more like a gun with wings

 

[Sigma LS]

Why not use weak torque springs on the arms and have a motor turn a screw in the main body that pushes the string back on the bow. Then it would work pretty close to what you have in the game, and wouldn't put too much strain on the parts. You could even make a catch at the back to hold the bowstring while you back the screw off of it so you could release the catch and simulate it firing.

Emphasis on weak torque springs or it will tear itself apart.

 

[CPU64]

Why not use weak torque springs on the arms and have a motor turn a screw in the main body that pushes the string back on the bow. Then it would work pretty close to what you have in the game, and wouldn't put too much strain on the parts. You could even make a catch at the back to hold the bowstring while you back the screw off of it so you could release the catch and simulate it firing.

Emphasis on weak torque springs or it will tear itself apart.

The only problem with that is, the weapon in the game doesn't actually have a "string" in the bow...

 

[23Magnum]

It would be easy to mimic the actions of the torque bow arms, but not make a functioning one that could actually fire a volley as well as in the game. Besides it would be a working weapon then and we don't usually endorse people to make working firearms.

Sigma is correct actually though you could make some alterations. You don't have to use a string(not that you couldn't as the string would still not be visible if I am thinking the way Sigma is). It could be an additional compression spring. The screw Sigma is referring to would be a worm gear setup probably. You would be able to get a good amount of power out of the shot with very little initial force from a motor. The motor would have to have enough torque to turn the worm gear, but not as much as a direct radial motor would to draw back a string, wire, or compression spring. The only thing tricky might be the release using such a setup. I know how to make it draw back, but the release might take a bit more thinking or someone else to speak up that can add to what Sigma and I just described.

 

[Darkslitter]

It would be easy to mimic the actions of the torque bow arms, but not make a functioning one that could actually fire a volley as well as in the game. Besides it would be a working weapon then and we don't usually endorse people to make working firearms.

Sigma is correct actually though you could make some alterations. You don't have to use a string(not that you couldn't as the string would still not be visible if I am thinking the way Sigma is). It could be an additional compression spring. The screw Sigma is referring to would be a worm gear setup probably. You would be able to get a good amount of power out of the shot with very little initial force from a motor. The motor would have to have enough torque to turn the worm gear, but not as much as a direct radial motor would to draw back a string, wire, or compression spring. The only thing tricky might be the release using such a setup. I know how to make it draw back, but the release might take a bit more thinking or someone else to speak up that can add to what Sigma and I just described.

I wasn't planning on making it fire but like you guys said the motion. I kind of get what you're talking about but I don't know what parts I would need. If you guys could help me design a rig for the motion that would be cool.

 

[23Magnum]

I wasn't planning on making it fire but like you guys said the motion. I kind of get what you're talking about but I don't know what parts I would need. If you guys could help me design a rig for the motion that would be cool.

You figure out the envelope size(space to work in) of this beast and I think I could make a layout of what you would want to do in Inventor. The layout should help, but you'll still need to figure out all the math behind the mechanics. I could do that, but I'm rather busy at the moment with work.

Here are a few of the items you could use if you want to try setting it up on your own.

The first image is of some Torque Springs, and the second is of a worm gear setup. The motor you would want to use would be attached to the worm gear(screw like gear) and feed the catch/release mech back to it's release point. I have it in my head right now better than I can describe it, but I'm sure you can figure something out given these ideas.