Raptor Hand - Finger Knuckle Concept

youmagine

Here's a concept demo of the knuckle joint feature, similar to what you'll find on the Raptor. If you've printed your own hand, then you're already aware that finger tips pose a challenge to print. The overhang or "fingernail" area is shallow, leading to severe curling at the edge, which results in a catastrophic collision with the nozzle. Or it just looks bad. I've introduced support features into the part to allow for printing on its side. Adhesion discs (0.2mm) at the base prevent curling up of the first layers. Single-walled (0.3mm) support tubes provide a non-warping structure for knuckles to print on. The resulting part has a stronger joint because it's printed perpendicular to its motion axis. This is just a concept demo, not intended to replace any existing design. Instead, it aims to spark further discussion and lead to innovative changes moving forward. Print one yourself and let me know what you think.