LR44 A76 to AA Adapter

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Unlike other adapters, this adapter has a reinforced battery compartment and is a solid cylinder (higher mechanical strength and durability) that must be printed with 5% infill (linear pattern) to achieve effective weight reduction. To make contact with the battery I used a 1/8" x 2" round (domed) head screw type, which I cut with the Dremel to reduce its length to 44mm.