Tamas Juhasz Posted July 30, 2014 Posted July 30, 2014 (edited) Hello! Finally my entry is done: http://www.brickshel...ry.cgi?f=546318 It's a pneumatic submarine. I wanted to make something similar to the 8868 B model (which is the best B of all time imho), but 200 parts aren't much for that. So I decided to make a pneumatic sequencer base, which allows an automatic function circuit. Working method: two pneumatic cylinder are connected to the other's valve, they control each other. The big cylinder controls the two small. : Promo pictures: So the main function is the pneumatic arm, other smaller ones are described in this picture. Video is available below. Made with 200 parts: Other pictures: Thanks to the outer shell with the yellow panels, the submarine is pretty rigid: Control panel in the cockpit: The inner structure with all pneumatic parts: Video: link: I know, there isn't much time left to the end of the contest, but in the last few weeks I was very busy. Fell free to ask or comment, I'm courious about your opinion. .LXF file for instructions: www.brickshelf.com/gallery/mbmc137/Mini-Submarine/mini-submarine-ldd-instructions.lxf . Edited August 14, 2016 by Mbmc Quote
jantjeuh Posted July 30, 2014 Posted July 30, 2014 Wow, that's another very nice entry. Very original idea, and well executed. Love the use of pneumatics. It's going to be very hard to pick just 10 entries to vote for! P.S.: isn't it a submersible rather than a submarine? Quote
Tamas Juhasz Posted July 30, 2014 Author Posted July 30, 2014 Thx! Yes, it's more a submersible, but people know better the "submarine" word, and they are also often called as submarine. I call it mini submarine. Quote
PROlego Posted July 30, 2014 Posted July 30, 2014 Looks great! I wonder if somebody has built a working pf submarine? Quote
Edwin Korstanje Posted July 30, 2014 Posted July 30, 2014 Very great entry and for me is the water theme a great love that is missing in the TLG line of sets. Quote
grum64 Posted July 30, 2014 Posted July 30, 2014 Hugely impressive. I applaud your use of pneumatics. Quote
Rockbrick Posted July 30, 2014 Posted July 30, 2014 Just when you think nothing else can surprise you with 200 parts, this comes along...! Quote
Doc_Brown Posted July 31, 2014 Posted July 31, 2014 OMG so many cool ideas coming thu, I guess people have a lot of patience to wait to the end to show! This is really cool, looks so nice. Great functions with clever mechanisms. Quote
Fissl Posted July 31, 2014 Posted July 31, 2014 WOW! the pneumatics are soooo nice! I like it a lot! Quote
barman Posted July 31, 2014 Posted July 31, 2014 Another great Pneumatic entry It looks good and the functions are perfect for this model. I think that de extra valve wasn't necessary. Pneumatic follows basicly the way of less resistant. The claw will shut first before there is enough pressure to lift the boom. This would reduce the parts and could be used for some extra detail of function. Although..., the boom will drop once it's over it point of gravity. that will change the pressure in the system and will release the barrel before it is over the hole... Quote
Godtshep Posted July 31, 2014 Posted July 31, 2014 Excellent. The use of pneumatics is creative and effective and the shape is simple but aesthetically pleasing. Quote
Erik Leppen Posted July 31, 2014 Posted July 31, 2014 The model was cool already before I found out you use the same pneumatic system as 8868's B-model. It's beyond awesome now :) Quote
Tamas Juhasz Posted July 31, 2014 Author Posted July 31, 2014 Thanks all for the kind words, good to see you like it. I really like yours too, there are so many good ideas. Erik Leppen: it has a bit different mechanism than 8868 B, which uses gravity to switch the main valve. This submarine uses only a sequencer for this. But you are right, the gripper and arm raising has the same working method (less and more resistance). Another great Pneumatic entry I think that de extra valve wasn't necessary. Pneumatic follows basicly the way of less resistant. The claw will shut first before there is enough pressure to lift the boom. This would reduce the parts and could be used for some extra detail of function. Although..., the boom will drop once it's over it point of gravity. that will change the pressure in the system and will release the barrel before it is over the hole... In the beginning I also thought about using only one valve, but it does not works. This arm has so less weight that it can't switch the valve during the "fall". And you are right, with the release point of the barrel. Quote
Aris Posted May 9, 2020 Posted May 9, 2020 (edited) Excellent work and compact design. So much detail in a great little creation. Pneumatics do incredible things. Edited May 12, 2020 by Aris Quote
howitzer Posted May 10, 2020 Posted May 10, 2020 Wow, this is incredible, and with so small parts count! Makes me want to take apart my 8868 A-model and build the B-model... Quote
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