Saare Yachts Vent Model 3

grabcad

http://blog.grabcad.com/2011/08/usd2000-prize-for-a-new-yacht-deck-vent-design/ Ok, while working on second one, I've decided to build something really simple based on the existing design. This model is close to the existing but the push-pull mechanism is different. Pictures shows it in fully opened and fully closed position. It also has a simple latch to secure it in closed position. I'd just thought it is the most reliable design in terms of water-proof stuff. Again, will add bits-and-bolts closer to the end, would love to hear critics first :) Second model is due to come, just want it to be perfect, so do not switch the channel :) UPD: Final model uploaded now, with frictional element (plastic inlet) as a position smoothing solution. Another system can be also implemented (ball on the spring in the pushing pin + stepped plastic inlet, so kind of ratchet system), but I consider plastic frictioner much more reliable in considered conditions. UPD: Another version is added (NOTE: STEP file is inside zip folder, 'cos grabcad does not allow you to download more than 3 versions). Last screenshots shows, that in this version there is no latch, but instead a knurled set nut mechanism for securing it in any position (starting to look more and more alike English window :)). Credits to David Thomas for brilliant idea!