Legoliner Pilot Posted October 3, 2009 Posted October 3, 2009 Hello members of Eurobricks! I recently found the power functions part of Lego SAH very intriguing, and I decide to buy the following items so I can motorize my Wind Turbine from 7747 Wind Turbine transport: Can anyone offer a few general guide to motorizing? I'm kind of new to power functions ... Quote
Milan Posted October 3, 2009 Posted October 3, 2009 (edited) You have come to the right place! Ok, PF is very nice because it provide IR remote control of MOC, which is perfect IMO. So, the parts you have provided are good, I would suggest you to buy smaller rechargeable battery box, it is more expensive, but smaller. It goes this way: -battery box -IR receiver -M Motor Battery box has 6 AA batteries, IR receives signal from your remote and Motor provides power. It is important that IR receiver has its sensor visible so it can receive signal properly. With Speed Remote Control you can adjust speed of the M motor, it has 7 speeds one direction and 7 speeds in opposite direction.. I am not sure if you need 50cm extension wire, provided that your battery box will be at the bottom of the turbine, you have wire from IR, and wire from M motor, so calculate is this enough to reach the top of the turbine, without buying extension, you can save money there. M motor is a little bit faster to connect it directly to wind turbine, but if you are using that new remote you can adjust speed. But if it is still too fast and furious, use rubber band, pulley and reduce its speed by 3 or 5 times, according to your pulley choice. But 7747 is pretty small, 33 cm tall, so it would not look very good with wires and motor being visible. If you need more help about PF, ask Edited October 3, 2009 by Milan Quote
BillytheKid Posted October 4, 2009 Posted October 4, 2009 It's a small windmill and dificult to hide the wires. Maybe using the red micromotor and enlarge the windmill a little will do the trick. Quote
aawsum Posted October 4, 2009 Posted October 4, 2009 (edited) the M motor fits nicely in the motor compartment. The wire goes down through the tower, only problem is to hide the batterybox. Best thing to do is either put the windmill on a small hill or put a house next to it. I also saw a small example where somebody put an axle in the tower, and hid the motor + batterybox in a house next to it. Edited October 4, 2009 by aawsum Quote
jeffjcc Posted October 15, 2009 Posted October 15, 2009 7747 has been my favorite set of 09! I've been waiting and waiting for someone to post specifics on exactly HOW they used PF to get 7747 going. Lots of suggestions, and we know that the M motor seems to be the solution. BUT I'd really like to see some pics on how others did it! Still waiting Quote
frogstudio Posted October 16, 2009 Posted October 16, 2009 It's a small windmill and dificult to hide the wires. Maybe using the red micromotor and enlarge the windmill a little will do the trick. I've motorized mine this way, and it works beautifully. As soon as I can, I'll post some pics. Quote
aawsum Posted October 16, 2009 Posted October 16, 2009 7747 has been my favorite set of 09! I've been waiting and waiting for someone to post specifics on exactly HOW they used PF to get 7747 going. Lots of suggestions, and we know that the M motor seems to be the solution. BUT I'd really like to see some pics on how others did it! 7747 is also my favourite set of 2009 I am waiting for a small order of PF parts, then I will redo the motorisation of the turbine and put some pics here Do not be impatient Quote
Legoliner Pilot Posted October 19, 2009 Author Posted October 19, 2009 What is this red "micromotor" you speak of? Can you give me the Bricklink entry please? Quote
frogstudio Posted October 19, 2009 Posted October 19, 2009 What is this red "micromotor" you speak of? Can you give me the Bricklink entry please? Bricklink entry is: http://www.bricklink.com/catalogItem.asp?P=2986 Quote
Holodoc Posted November 2, 2009 Posted November 2, 2009 I have found two solutions over at 1000steine.de: *click* He used a micromotor (photo 1) and a PF-M-motor (following photos). It's written in german, but the photos have no language. If you have questions about it, don't hesitate to ask. Quote
dugmence Posted November 19, 2009 Posted November 19, 2009 I have found two solutions over at 1000steine.de: *click*He used a micromotor (photo 1) and a PF-M-motor (following photos). It's written in german, but the photos have no language. If you have questions about it, don't hesitate to ask. how does micro motor work? i haven't seen it before...so that's the reason I'm asking... and second solution, with m motor, if i see correctly you have to drill a hole in base plate of the generator... Quote
Milan Posted November 19, 2009 Posted November 19, 2009 how does micro motor work? i haven't seen it before...so that's the reason I'm asking...and second solution, with m motor, if i see correctly you have to drill a hole in base plate of the generator... Here is how micromotor looks like And here are characteristics http://www.philohome.com/motors/motorcomp.htm Quote
dugmence Posted November 19, 2009 Posted November 19, 2009 i know how it looks like, well, only what i saw on bricklink, but there's only one picture, from that angle, i'm interested in that, how can i connect it with power supply and similar stuff... Quote
Milan Posted November 19, 2009 Posted November 19, 2009 i know how it looks like, well, only what i saw on bricklink, but there's only one picture, from that angle, i'm interested in that, how can i connect it with power supply and similar stuff... You have more pictures in the link I have provided! You can connect it with old 9v battery box via old black 9v cable, or alternatively, if you want to use new PF battery box, you can use PF extension cable with transformer from old 9v to new 9v! Connecting is at the back of the micromotor! Quote
lightningtiger Posted November 19, 2009 Posted November 19, 2009 I'm thinking totally out of the box for my wind turbine - sure I'll put a motor in it. No battery, but a volt meter connected to it and use it as a science display to show how one of these can take an external physical energy and change it to electrical energy. A bit like Faraday did around 1830, since either motor has a permanent magnet stator. By spinning by hand to act as the wind, it will generate a small voltage which would show on a volt meter and of course by just hooking up a battery like you all are trying, it will turn under electrical power. I might just use the older 9volt motor as the motor in this is actually one used in cd players as a spindle motor which can turn up to 500 r.p.m.. Quote
dugmence Posted November 20, 2009 Posted November 20, 2009 i've founded one 8735 lego motor in Belgrade...i want to buy it, i know i can put it inside this wind generator, but i've heard that it's low quality motor...can anyone tell me anything about it? Quote
Milan Posted November 20, 2009 Posted November 20, 2009 i've founded one 8735 lego motor in Belgrade...i want to buy it, i know i can put it inside this wind generator, but i've heard that it's low quality motor...can anyone tell me anything about it? It is a fine motor, quality is ok, somewhat bulky, but it is ok, it served me well in my creations, with respective torque! Here is a picture If you want to know more about its torque, rpms, or other characteristics, check this link from Philo: http://www.philohome.com/motors/motorcomp.htm Quote
dugmence Posted November 24, 2009 Posted November 24, 2009 here are two video clips of my way for motorizing wind turbine, but i think i'll reduce rotating speed from 44,5rpm in coming days... original speed of used motor on the shaft is 350rpm... on the second video you can see what is under all that bricks... Quote
Milan Posted November 25, 2009 Posted November 25, 2009 Wow! Your work here is very impressing! There is no a single clue that there is any kind of motorization on that turbine, except the cable at the floor! For reducing speed, you can just use a bigger (only one available) pulley at your first stage reduction...that will reduce speed from 3 to 5 times compared to motor initial speed... Very good job, dugmence! Quote
Rumpelmuck Posted November 25, 2009 Posted November 25, 2009 I tried that way! A little bit noisy :-( Any comments are welcome. Cheers! Thomas Quote
Milan Posted November 25, 2009 Posted November 25, 2009 I tried that way! A little bit noisy :-( Any comments are welcome. Cheers! Thomas It is noisy because you have used that motor, and then you had to heavily reduce it. It would produce much less noise if you could swap places of the worm gear and normal gears! Speed looks good! Quote
dugmence Posted November 29, 2009 Posted November 29, 2009 (edited) here is the latest, but not the final version, with rotating speed of 14,75rpm now it is in working in range of speeds for real turbines which is 10-22rpm Edited November 29, 2009 by dugmence Quote
AllanSmith Posted December 18, 2009 Posted December 18, 2009 Hi, I motorised my wind turbines with a micro motor in each one with the wire fed down inside. It is powered by a 9v train contolller so that I can get the correct rotation speed. See my video of them going Quote
AFOLEGODT Posted June 1, 2011 Posted June 1, 2011 Hi, A possible way to motorize with modern PF M-motor without changing size and proportions drastically: (Image is link to gallery) Quote
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