Arduino Mega 2560  RAMPS Holder with Quick Release
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Arduino Mega 2560 / RAMPS Holder with Quick Release

The Arduino pcb just snaps in and can be released by pushing the hook There are also tree screw holes with embedded nuts to screw the board down but this is not quite needed Even the complete RAMPS assembly is held proper ...

similar models —

Arduino Mega 2560 / RAMPS Holder with Quick Release alternatives
Arduino Mega 2560 support
plastikelectrik