Linear Acutation CHAMP

My entry for the NASA CHAMP challenge locks by means of a linearly actuated (on the right.) Since the handle must be pulled out rather than slided, there is very little chance of an accidental unlocking. The socket fits tightly around the handrail to prevent slippage. The best results have been acheived at 0.3mm resolution, 50% infill: Final Printed Weight at 50% infill: 38g Please excuse the guerilla style screenshots. I'm afraid my software can't do formal renderings.