Zaiocrit Posted March 12, 2012 Posted March 12, 2012 I took inspiration from here : Heavy-lift Ship Unfortunately I could not get what i wanted, because the variation between the normal buoyancy and diving has always been minimal in the various tests that I did The very satisfaction is that it floats with only Lego bricks! video ciao Andrea
Alasdair Ryan Posted March 12, 2012 Posted March 12, 2012 Do you hope to make it sink and then raise like the real think?
Zaiocrit Posted March 12, 2012 Author Posted March 12, 2012 (edited) if I can make it float ... i'm already happy see also the desire is to move a few millimeters up and down .. 2 or 3 ? hehehe is a hazard ... but I want to try of course now I'm working on the waterline, the ship weighs 1 kg! Edited March 12, 2012 by Zaiocrit
DLuders Posted March 12, 2012 Posted March 12, 2012 You will need some water ballast that you can pump in and out.
Zaiocrit Posted March 12, 2012 Author Posted March 12, 2012 You will need some water ballast that you can pump in and out. Indeed! the pump is already mounted
peter_m Posted March 13, 2012 Posted March 13, 2012 Zaiocrit, you may find this video reassuring: Lego motors running under water?
Zaiocrit Posted March 13, 2012 Author Posted March 13, 2012 (edited) Zaiocrit, you may find this video reassuring: is the end that will do my ship? Edited March 13, 2012 by Zaiocrit
Zaiocrit Posted March 17, 2012 Author Posted March 17, 2012 flotation tests and now ... connect the hoses for the next step: to sink!
timslegos Posted March 18, 2012 Posted March 18, 2012 wow i am surprised that it floats! Are you going to make it able to sink? tim
Alasdair Ryan Posted March 18, 2012 Posted March 18, 2012 (edited) Making it sink is the easy bit,it's making it rise out the water that will be hard. Edited March 18, 2012 by Alasdair Ryan
Zaiocrit Posted March 18, 2012 Author Posted March 18, 2012 set up a water pump and an air pump... both be connected to two tanks
Zaiocrit Posted March 18, 2012 Author Posted March 18, 2012 I have compensed this problem (evidenced by your animated gif) with this 2 pieces : 'Boat Weighted Keel 2 x 8 x 4 without Bottom Tab' (x149a) and 'Brick 2 x 6 x 2 Weight with Plate Bottom' (73090b) for a total of 0.102 Kg to 43cm of distance from the "cockpit" wow i am surprised that it floats! Are you going to make it able to sink? tim Yes ! I do not know how many mm will move I have to make connections and have the time to take the test Making it sink is the easy bit,it's making it rise out the water that will be hard. I have already taken the test to pump water and then air, and it worked ... pushes the air out of the water and vice versa .... Obviously the quantities are minimal the ideal is to have more Tank I must now consider whether to put the tanks in series, or independent of each other as designed at the beginning This is the Hull of my ship
Zaiocrit Posted March 18, 2012 Author Posted March 18, 2012 (edited) updating Unfortunately, the water entering the tank is not enough to "send off" the ship The difference is micrometric Floats too well! there should be more tanks and a system to rotate them when they fill with water or air optimizing the load but I have no other I probably pointed too high for my chances but let's see what I can do even Edited March 18, 2012 by Zaiocrit
dfs473 Posted March 18, 2012 Posted March 18, 2012 (edited) It`s really good^^ Edited March 18, 2012 by dfs473
Zaiocrit Posted March 18, 2012 Author Posted March 18, 2012 It`s really good^^ but does not work as I would like
Zaiocrit Posted April 1, 2012 Author Posted April 1, 2012 Unfortunately I could not get what I wanted the variation between the normal buoyancy and diving has always been minimal in the various tests that I did Unfortunately the limited time available did not allow me to make the last change that I have in mind I close with these pictures for the moment the status of jobs ... followed by a video satisfaction is cjhe floats only with Lego bricks!
timslegos Posted April 1, 2012 Posted April 1, 2012 i like the yellow and red color scheme. What is the pump on the deck for? tim
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