Poly-cap
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A poly-cap is a small bushing used to create smooth joints, or to keep something in place without glue in scale-models. They are usually found on well-engineered kits such as those by Tamiya and Bandai who have employed them for a long time.
A typical "cap" is just a small cylinder but many other shapes exists. Bandai for example have a wide range of designs used in their robot-kits (Gundam, etc).
Typical uses include
- Wheel or sprocket-hubs
- Pivot-points for guns
- Joints in robotic limbs
