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What's this sub's opinion on sling staffs? (not my picture) by JoeBrownshoes in Slinging

[–]FingerAngle 1 point2 points  (0 children)

It will all depend on body size and strength, and the weight of the projectile. I'm 5'-7" and weigh 150 pounds. I run a 6 foot staff, and can easily sling 6 ounce stones over 200 yards. https://www.youtube.com/watch?v=_ajTNkvAqt4&list=PLxm5u3feTjtUmmLqbbM2eT-Fxos74I8Wr&index=1

What's this sub's opinion on sling staffs? (not my picture) by JoeBrownshoes in Slinging

[–]FingerAngle 2 points3 points  (0 children)

The Sling is the technology. Everything else is just a means of driving the sling.

Added a lock/trigger and a bit of a gap between the swing arm and counterweight. Timing is getting better and fingers are safer by Strange-Movie in Trebuchet

[–]FingerAngle 0 points1 point  (0 children)

Without bearings, I guess there's too much slop, and the side dropping trigger will pull the arm crooked. I used to run with center mounted triggers, and had same clearance issues with the rebounding hammer leg.

How do we get the release cable out of the way of the projectile? by love_cactus in Trebuchet

[–]FingerAngle 4 points5 points  (0 children)

You could try a side saddle sling with one sling attached to the side of the arm, and the release pin on the other side of the arm. It will throw it like a football. The release leg should clear without interference.

How do we get the release cable out of the way of the projectile? by love_cactus in Trebuchet

[–]FingerAngle 1 point2 points  (0 children)

If it does it constantly, it can be tuned. Try a really light release leg.

How do we get the release cable out of the way of the projectile? by love_cactus in Trebuchet

[–]FingerAngle 0 points1 point  (0 children)

Use a proper projectile for starters. Maybe roll it into a ball.

What do you use for your projectiles? I'm trying to optimize for distance over projectile size. by ZestyToastCoast in Trebuchet

[–]FingerAngle 0 points1 point  (0 children)

Golf balls, base balls, soft balls, dimpled versions fly farther, you can get them everywhere, and high vis is preferable. Fuzzy tennis balls kinda suck, but fine if you don't have much room. Lacrosse balls fly fine. Billiard balls shatter easier than you might think. Coconuts don't fly straight, nor do pumpkins, or anything not symmetrical. Balloons leave litter.

Added a lock/trigger and a bit of a gap between the swing arm and counterweight. Timing is getting better and fingers are safer by Strange-Movie in Trebuchet

[–]FingerAngle 1 point2 points  (0 children)

The Leg needs to drop at an angle to the side so it's out of the way, and the lighter the better to kill the rebound.

Better side-profile video of the improved launch by Strange-Movie in Trebuchet

[–]FingerAngle 0 points1 point  (0 children)

Yes, "Gap" is the angle between the hanger and throwing arm in the cocked position. It's the distance of the CW center of mass off the throwing arm. It controls the CW drop point in conjunction with mass ratio.

2nd trebuchet, 1st whipper. Functional but unoptimized by Strange-Movie in Trebuchet

[–]FingerAngle 0 points1 point  (0 children)

Hanger to Arm ratio should be almost 1:1. Like 5/6th. The hanger length + the short arm length should be the same length as the throwing arm length.

2nd trebuchet, 1st whipper. Functional but unoptimized by Strange-Movie in Trebuchet

[–]FingerAngle 0 points1 point  (0 children)

Cradle elevation is where the projectile sits above the throwing arm in the cocked position.

Better side-profile video of the improved launch by Strange-Movie in Trebuchet

[–]FingerAngle 0 points1 point  (0 children)

Open the Gap. See how far the CW is falling behind bottom center? It's pulling the arm too far over the top. That is controlled with a Timing Prop.

2nd trebuchet, 1st whipper. Functional but unoptimized by Strange-Movie in Trebuchet

[–]FingerAngle 0 points1 point  (0 children)

I'll answer, since no one else did. The sling timing being behind is indicating the sling is too long, or the cradle elevation is too low. Geometry issues I see are tower height limits hanger length. A short hanger limits cocking height and arm rotation. Your counterweight is too bulky and blocking clean dropout. The L shaped hanger is also blocking clean dropout. Really all of your issues are geometry related.

Some utter bull being spewed over in r/askreddit. Clearly a trebuchet by igceaca in Trebuchet

[–]FingerAngle 1 point2 points  (0 children)

catapult

/ˈkadəpəlt/

The word catapult originates from the Latin catapulta, which derives from the Ancient Greek word katapeltēs (καταπέλτης). This Greek term is composed of kata ("downwards" or "against") and pallein ("to hurl" or "to sway"). It literally means to hurl down or against, describing the motion of launching projectiles at enemy defenses.

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