Harbor Freight Ratcheting Bar Clamp Connector
thingiverse
This is a compact piece that enables you to link two Harbor Freight / Pittsburgh ratcheting bar clamps end-to-end, resulting in a longer clamp with double the length. It utilizes the factory bolt and incorporates a press-fit M6 nut for secure connection. I printed this part using 2mm walls in PLA and 20% infill, applying maximum pressure to ensure stability, and it came out fine. The version pictured allows considerable flexibility in the clamp. I believe the longer version will resolve this issue, but I haven't tested it yet due to its size being too large for my small printer.
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