Lever vs Gears Crusher

TECHNICAL NOTES

Conversation-specific knowledge extracted from the lever vs gears crusher discussion.

EXTRACTED KNOWLEDGE / HOW-TO FROM CONVERSATION

QUESTION / CONTEXT: I want to redesign a can crusher so I can print it. Id like to be able to mount it on a wall. Im not sure if gears or levers would be more durable

1. *Lever (recommended)
2. Pros: fewer moving parts, tolerant of misalignment, easy to reinforce with metal pins/bolts, quieter, simpler to print/assemble.
3. Failure mode: cracked pivot ears or bent handle (easy to overbuild).
4. Best for: “kids/guests will use it” durability.
5. *Gears
6. Pros: compact, can multiply force in a small envelope, can be one-hand with a crank.
7. Cons: tooth wear, backlash, needs better alignment, needs real bushings, and printed teeth don’t like shock loads.
8. Best for: you *want* a crank feel and are OK adding metal shafts/bearings and occasional maintenance.

SPECIFICATION

DEVELOPMENT HISTORY