Seej Mods

UPDATE!! (11/10/14) Just added a support bar for the catapult which helps keep the sides together. I made these a while back just forgot to upload them:| Also included some spacers for the top bar. Have uploaded another pic to show where they go.
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I wasn't too happy with how the original Seej catapult arm worked so I made a custom arm for myself which I think works alot better and is easier to do.
Similar too this one http://www.thingiverse.com/thing:128388 by MacGyver which I tried but it snapped after a few goes. So I just made a stronger version based on that design and added a few extra things.

You can tell by the pics its alot stronger looking and has 2 cylinders on each side to stop it sliding left or right, I just used one of the original crossbars which is a bit small but doesn't matter because once the arm and the rubber-bands are on its held firmly in place.
You can use either the bottom or top slot(or both) on the arm for the rubber bands, If you use the top