Tiger Crab - 3D Printed OTT/TTF Slingshot

Tiger Crab is a 3D-printed slingshot inspired by the form and powerful presence of a tiger crab. The design takes reference from the crab’s broad shell, strong claws, and aggressive overall silhouette, combining the hardness and strength of a crustacean with the functional structure of a slingshot.

The overall shape is thick, solid, and stable. The fork area is inspired by the visual form of crab claws opening outward, creating a strong wide-fork structure. The central opening provides clear projectile clearance and a practical aiming window, while also making the whole design feel like a crab spreading its claws and preparing to strike.

Since many 3D printing users may not want to buy extra screws and nuts just for a printed model, this slingshot removes the clamp-based structure and uses a simpler band-fixing slot instead. The bands can be tied directly with rubber strips, zip ties, or amber bands. This design supports both OTT / Over-the-Top and TTF / Through-the-Forks band setups.

The handle continues the hard and full shell-like design language of the tiger crab. Rounded volumes and flowing transitions improve comfort while keeping the grip solid and supportive. It is especially suitable for a stable push-grip shooting style, providing strong palm support. The form keeps the wild and powerful character of biomimetic design while also maintaining the structural stability and practicality needed for a 3D-printed slingshot.

Overall, Tiger Crab is not only a functional 3D-printed slingshot, but also a personalized biomimetic design inspired by crustaceans. It combines the fierce appearance of a tiger crab, the heaviness of a protective shell, and the tension of a handmade tool into a strong, stable, and aggressive design.

虎蟹 Tiger Crab 是一款以老虎蟹外形为灵感设计的 3D 打印弹弓。设计参考了老虎蟹宽厚的甲壳、强壮的蟹钳以及具有攻击性的整体轮廓，将甲壳类生物的坚硬感、力量感与弹弓结构结合在一起，形成一种兼具仿生性与实用性的造型语言。

该弹弓整体姿态厚实稳定，撑头部分借鉴蟹钳向外展开的视觉特征，形成具有力量感的宽叉结构。中央开口保证了良好的出弹空间与瞄准视野，同时让整体造型更接近蟹类张开双钳、蓄势待发的状态。

考虑到很多 3D 打印玩家不希望为了一个打印件额外购买螺丝和螺母，这款弹弓摒弃了夹片结构，改用更简单直接的皮筋固定槽设计。用户可以直接使用皮筋将弹弓皮筋固定在撑头上，也可以使用扎带或琥珀带进行绑扎。该结构同时支持 OTT 过顶式与 TTF 穿叉式两种绑法。

握柄部分延续了老虎蟹坚硬、饱满的甲壳意象，通过圆润的体块和流线型过渡提升握持舒适度。整体握感扎实饱满，适合稳定的虎口推握弓法，能够为手掌提供良好的支撑。其造型既保留了生物仿生设计的野性与力量，也兼顾了 3D 打印弹弓所需的结构稳定性与实用性。

整体而言，虎蟹 Tiger Crab 不只是一款功能性 3D 打印弹弓，也是一件带有甲壳类生物风格的个性化造型作品。它将老虎蟹的凶猛外形、厚重甲壳与手工器械的张力融合在一起，呈现出一种强悍、稳定而富有攻击感的设计风格。