Gripper is a triumph of style over function.

The design for the EcoDisaster barrel lifter is complete and has been tested. We’re quite pleased with how it looks, but very unhappy at how it works.

The drive from the servo to the jaws (which is via fishing line) is way too vague. As a result the barrel slips out at the slightest provocation.

There’s going to have to be a plan B.

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