1. Post #81
    I am a moderator.
    Swebonny's Avatar
    August 2006
    12,969 Posts
    So, Swebonny, you're estimating the cost of the multi-copter itself at about $100-150, right?
    I'm not that sure at the moment. I guessed it would cost that much at first, but it may go up to $200. Will be back later to calculate an estimation. Right now I've just been guessing.
    Reply With Quote Edit / Delete Reply Windows 7 Sweden Show Events Useful Useful x 1 (list)

  2. Post #82
    1 2 3 4 5 6 7 10
    Dokaman's Avatar
    May 2010
    680 Posts
    So, Swebonny, you're estimating the cost of the multi-copter itself at about $100-150, right? Dokaman, or any other experience FPV craft builder, what kind of money might I be looking at for a controller and FPV equipment? This looks like an extremely cool hobby to get into, but I just don't have the budget to be dropping thousands of bucks into this.

    Edited:


    It wouldn't be strictly necessary to build a multicopter, either. I think that'd be a bit cooler, but it's looking like the fixed wing craft are a bit more budget-conscious, and I just happen to have a perfect runway near my new apartment; a big closed-off parking lot of an old steel mill. So fixed wing is definitely a viable option for me, if it's considerably cheaper.

    First of all you don't need an engineering degree, you just need to be able to read and follow instructions. Years ago it was hard to get into this, as you would have to do alot of programming for the brain board etc. Now you can do it from your Android phone via Bluetooth, it's that easy.

    To be honest, these are a lot of fun without FPV'ing them. FPV'ing them makes them easier to fly, by far. A good FPV setup on a multicopter will set you back if you have no idea what your doing. For instance, you can buy a patch antenna to receive video signal or you can make your own (which is much more effective budget wise and signal strength wise)

    FPV planes will be a lot cheaper and easier, as you have more space to put the equipment on, squishing up equipment causes interference and unless you know what your doing will cause you to crash. One of my more funniest FPV planes is less then a hundred dollars and can easily get round a large field but is more for stunts.

    Swe is in the same boat as you, not knowing much about it and taking it step by step. Following him (if he keeps us updated rectangularly) you can see how he does it and what problems he has to overcome.
    Reply With Quote Edit / Delete Reply Windows 7 United Kingdom Show Events Agree Agree x 1Useful Useful x 1 (list)

  3. Post #83
    I am a moderator.
    Swebonny's Avatar
    August 2006
    12,969 Posts
    I'm reading trough these two threads, because they got some quite good information. Although it can be hard to read since the OP seems to hate capital letters.

    http://www.rcgroups.com/forums/showt...6#post19312519
    http://www.rcgroups.com/forums/showthread.php?t=1519946
    Reply With Quote Edit / Delete Reply Windows 7 Sweden Show Events Useful Useful x 1 (list)

  4. Post #84
    laharlsblade's Avatar
    July 2009
    1,080 Posts
    I'm fairly sure the transmitter is not included.

    So you'd need to get the transmitter and also a charger to charge the batteries.
    Yeah you're right, actually I should have read the page detailing the package, it mentions on that page to buy those. Sorry, but of course thanks.

  5. Post #85
    I am a moderator.
    Swebonny's Avatar
    August 2006
    12,969 Posts
    I'm currently looking at this motor. It's quite cheap and seems to suit what I'm building.

    http://www.hobbyking.com/hobbyking/s...idProduct=5687

    It operates between 4A-12A and peaks at 15A. Someone did a benchmark and it did between 620g - 900g thrust depending on the propeller. So an electronic speed controller that has a max current of 15A and can do 18A burst seems suitable.

    http://www.hobbyking.com/hobbyking/s...5_18A_ESC.html

    I have no idea what this programming ESC deal is about, so the ESC I'm getting is limited. Sad thing is that there are none in stock at the moment :( I may just pick something else instead.


    So, between 2480g and 3600g max thrust from all the four motors depending on propeller. That sounds awfully lot. May have to recheck. Anyhow, according to that post if I divide it by two I will get the amount of weight that the quadcopter has to be below to lift at 50% throttle.

    So 1240g and 1800g. Obviously my quadcopter is going to get below 1240g.

    Edited:

    By that logic I could get a liftoff at 25% throttle if my chopper is just below 620g. That's neat.

    Edited:

    http://www.rcgroups.com/forums/showthread.php?t=1097355

    Best thread ever. Has practically everything.

    Edited:

    Already ay $91 not including shipping.

  6. Post #86
    Heineken
    Heinserver's Avatar
    February 2010
    946 Posts
    Je hebt geluk dat er geen mocros op het strand waren.

    Anyways, nice video :)
    Reply With Quote Edit / Delete Reply Windows 7 Netherlands Show Events Funny Funny x 1 (list)

  7. Post #87
    1 2 3 4 5 6 7 10
    Dokaman's Avatar
    May 2010
    680 Posts
    I'm currently looking at this motor. It's quite cheap and seems to suit what I'm building.

    http://www.hobbyking.com/hobbyking/s...idProduct=5687

    It operates between 4A-12A and peaks at 15A. Someone did a benchmark and it did between 620g - 900g thrust depending on the propeller. So an electronic speed controller that has a max current of 15A and can do 18A burst seems suitable.

    http://www.hobbyking.com/hobbyking/s...5_18A_ESC.html

    I have no idea what this programming ESC deal is about, so the ESC I'm getting is limited. Sad thing is that there are none in stock at the moment :( I may just pick something else instead.


    So, between 2480g and 3600g max thrust from all the four motors depending on propeller. That sounds awfully lot. May have to recheck. Anyhow, according to that post if I divide it by two I will get the amount of weight that the quadcopter has to be below to lift at 50% throttle.

    So 1240g and 1800g. Obviously my quadcopter is going to get below 1240g.

    Edited:

    By that logic I could get a liftoff at 25% throttle if my chopper is just below 620g. That's neat.

    Edited:

    http://www.rcgroups.com/forums/showthread.php?t=1097355

    Best thread ever. Has practically everything.

    Edited:

    Already ay $91 not including shipping.
    I don't like your listed speed controller, I would use this one.

    http://www.rctimer.com/index.php?gOo...7&productname=

    and get this programming card -> http://www.rctimer.com/index.php?gOo...8&productname=

    Because you need to change the cut-off settings on the ESC so you dont get one shut off in-flight, really easy to program with this card.

    Shipping from RCtimer is fast and cheap.

    These are my favourite motors which in my opinion are by far the best
    http://hobbyking.com/hobbyking/store...idproduct=6247
    Reply With Quote Edit / Delete Reply Windows 7 United Kingdom Show Events Friendly Friendly x 1 (list)

  8. Post #88
    I am a moderator.
    Swebonny's Avatar
    August 2006
    12,969 Posts
    Ah thanks a lot!

  9. Post #89
    1 2 3 4 5 6 7 10
    Dokaman's Avatar
    May 2010
    680 Posts
    The motors you originally wanted to get are fine, ESC's are not though.

    My top two multi copters (my quad and my tri) are running those motors and those speed controllers. Both are flawless.

    If you need any more help, let me know!
    Reply With Quote Edit / Delete Reply Windows 7 United Kingdom Show Events Friendly Friendly x 1 (list)

  10. Post #90
    Gold Member
    thrawn2787's Avatar
    April 2007
    8,265 Posts
    I wanted to get into FPV since the other thread about it but it seemed REALLY expensive to me (with fixed winged craft) since I am not willing to build a frame from foam (for a plane). And I live in a city / nearish to an airport / would really just like someone to have made a parts list for me. Maybe in a few years when I have a paying job and am done with school. :(

  11. Post #91
    Gold Member
    squids_eye's Avatar
    July 2006
    5,616 Posts
    I could really do with a list of parts I need to buy, I'm rubbish at all this research.

  12. Post #92
    OvB
    Facepunch resident scientist
    OvB's Avatar
    March 2007
    12,953 Posts
    I've also been looking through Hobby King. RC stuff is one of those things I'd like to get into once I have some money to throw around.

  13. Post #93
    I am a moderator.
    Swebonny's Avatar
    August 2006
    12,969 Posts
    The motors you originally wanted to get are fine, ESC's are not though.

    My top two multi copters (my quad and my tri) are running those motors and those speed controllers. Both are flawless.

    If you need any more help, let me know!
    Neat, I ordered the motors I posted and hopefully I will order the similar ESC's that you've mentioned although with lower current.
    I had no idea there were such important features in the ESC's, thought an voltage alarm was enough
    Reply With Quote Edit / Delete Reply Windows 7 Sweden Show Events Friendly Friendly x 1 (list)

  14. Post #94
    MrThompson's Avatar
    January 2008
    190 Posts
    As most of the people here in this thread I find this really awesome and want to get in it, but I have no knowledge of anything about it really.
    I did some reading though and I'll try and make a parts list and post that here. It will be based on one of those pre-made frames, since I can't really make anything myself.

    The more I think about this the more excited I get

  15. Post #95
    I am a moderator.
    Swebonny's Avatar
    August 2006
    12,969 Posts
    I must tell you guys one thing. If you're ordering a lot of stuff check with your mail office if they add VAT.
    Just got a letter from my mail office that demands me to fork out $30 due to a things I ordered online.
    Reply With Quote Edit / Delete Reply Windows 7 Sweden Show Events Friendly Friendly x 1 (list)

  16. Post #96
    RAPISTS ARE OPPRESSED
    mobrockers2's Avatar
    April 2011
    12,403 Posts
    I must tell you guys one thing. If you're ordering a lot of stuff check with your mail office if they add VAT.
    Just got a letter from my mail office that demands me to fork out $30 due to a things I ordered online.
    What. Did you order them from china or something?

  17. Post #97
    2014 SH Pun Award Nominee
    Awesomecaek's Avatar
    January 2009
    20,928 Posts
    I modelled this in Inventor few weeks ago to seve as centerplate for our multicopter. It will have diameter of 18 centimeters and will be cut out of probably 3mm thick glass fibre plate. Two of these will hold the whole thing together, mainly the carbon composite prisms for arms.

    Reply With Quote Edit / Delete Reply Linux Czech Republic Show Events Winner Winner x 3 (list)

  18. Post #98
    I am a moderator.
    Swebonny's Avatar
    August 2006
    12,969 Posts
    What. Did you order them from china or something?
    All or most HobbyKing products are shipped from Hong Kong I think. Mine was from Hong Kong.

  19. Post #99
    RAPISTS ARE OPPRESSED
    mobrockers2's Avatar
    April 2011
    12,403 Posts
    All or most HobbyKing products are shipped from Hong Kong I think. Mine was from Hong Kong.
    You should email them next time and ask if they can put a sticker over their company name. DX does this and it greatly decreases the chance that they charge import costs.

  20. Post #100
    1 2 3 4 5 6 7 10
    Dokaman's Avatar
    May 2010
    680 Posts
    Also you can tell them to put the value of the package as something it's not.
    Anything under eighteen dollars will not get import duty ;) Also if the item is classed as a gift, it will not get import duty.

  21. Post #101
    RAPISTS ARE OPPRESSED
    mobrockers2's Avatar
    April 2011
    12,403 Posts
    Also you can tell them to put the value of the package as something it's not.
    Anything under eighteen dollars will not get import duty ;) Also if the item is classed as a gift, it will not get import duty.
    And risking a severe fine? Don't think they'd do that.

  22. Post #102
    Gold Member
    cottonwaxy's Avatar
    November 2008
    715 Posts
    Hey Swebonny, very interested in the Multicopter you are building. I was wondering if you could make a new post that has the list of everything in your project currently?
    Reply With Quote Edit / Delete Reply Windows 7 Ireland Show Events Agree Agree x 1 (list)

  23. Post #103
    1 2 3 4 5 6 7 10
    Dokaman's Avatar
    May 2010
    680 Posts
    And risking a severe fine? Don't think they'd do that.
    Oh really?

  24. Post #104
    Spirit Guide
    Big Dumb American's Avatar
    March 2009
    17,031 Posts
    This is still a good thread. Swebo, spill the beans: how goes the multicopter?
    Reply With Quote Edit / Delete Reply Windows 7 United States Show Events Agree Agree x 1 (list)

  25. Post #105
    I am a moderator.
    Swebonny's Avatar
    August 2006
    12,969 Posts
    This is still a good thread. Swebo, spill the beans: how goes the multicopter?
    I just picked up the motors actually, after paying another $24 in taxes Seems like they got an eye on me or something. Anyhow no big deal.

    Here's what I got:


    4 motors.
    A voltage detector.
    And some glue. I want to add some more glue to the frame.

    Here's another picture:


    As you see I'm doing it really slow. But once I get my wage, I'm probably going to order everything in one go.

    Edited:

    Hey Swebonny, very interested in the Multicopter you are building. I was wondering if you could make a new post that has the list of everything in your project currently?
    Going to do that soon.

    Edited:

    The control board.
    http://www.hobbyking.com/hobbyking/s...dProduct=19534
    The frame:
    http://www.hobbyking.com/hobbyking/s...dProduct=16583
    The propellers, I'm most likely going to order a bigger ones as these below are quite small.
    http://www.hobbyking.com/hobbyking/s...dProduct=11331
    Voltage detector, not really a must.
    http://www.hobbyking.com/hobbyking/s...dProduct=13276
    The motors. 4 of them.
    http://www.hobbyking.com/hobbyking/s...idProduct=5687

    And normal cyanoacrylate glue, aka superglue. You can get it pretty much everywhere.
    Reply With Quote Edit / Delete Reply Windows 7 Sweden Show Events Winner Winner x 1 (list)

  26. Post #106
    Gold Member
    thrawn2787's Avatar
    April 2007
    8,265 Posts
    So yeah in the end you're (not you specifically just anyone getting into the hobby) still in this over $100 after the remote. Seems about the same price as planes, the FPV stuff is where it starts getting really really expensive though...

  27. Post #107
    I am a moderator.
    Swebonny's Avatar
    August 2006
    12,969 Posts
    Yeah, I'm way over $100 if shipping or other fees are going to be included.
    Reply With Quote Edit / Delete Reply Windows 7 Sweden Show Events Informative Informative x 1 (list)

  28. Post #108
    :3 FURRY ELITIST PRIDE :3
    Jacknife's Avatar
    January 2011
    6,579 Posts
    are you a alien???
    Reply With Quote Edit / Delete Reply Windows 7 United Kingdom Show Events Funny Funny x 1 (list)

  29. Post #109
    Spirit Guide
    Big Dumb American's Avatar
    March 2009
    17,031 Posts
    The FPV costs and the cost of a good controller are what make me uneasy. I'd love to give this a try, but I'm a broke-ass college student! I could reasonably afford two or three hundred bucks, but beyond that, I'd be dipping too far into my "uh oh" money.
    Reply With Quote Edit / Delete Reply Windows 7 United States Show Events Agree Agree x 2 (list)

  30. Post #110
    1 2 3 4 5 6 7 10
    Dokaman's Avatar
    May 2010
    680 Posts
    The FPV costs and the cost of a good controller are what make me uneasy. I'd love to give this a try, but I'm a broke-ass college student! I could reasonably afford two or three hundred bucks, but beyond that, I'd be dipping too far into my "uh oh" money.
    Depending on what you want to do with it really does depend on the cost, I have a super fast field flyer fully FPV'ed and the whole set up including the controller is around 130 dollars. I have taken it to FPV meetings and every time it has been a favourite. Controllers can be picked up on eBay quite cheap.

    The only part of the FPV side of things that is expensive is the video display. I tend to use video goggles which do cost quite a lot but again, you can snap some up on eBay really cheap. (I will post some of the ones I have in my next post)

    Swe, don't be worried about going to slow. The slower the better, you will end up with a much better Quad at the end of it. Keep us updated!
    Reply With Quote Edit / Delete Reply Windows 7 United Kingdom Show Events Useful Useful x 3Friendly Friendly x 1 (list)

  31. Post #111
    I am a moderator.
    Swebonny's Avatar
    August 2006
    12,969 Posts
    I've been looking up how to connect the ESC and the motor and other stuff. This video is really good.
    Reply With Quote Edit / Delete Reply Windows 7 Sweden Show Events Winner Winner x 2 (list)

  32. Post #112

    October 2011
    35 Posts

    Absolutely awesome Multicopter video, in the Everglades of Florida.

    (Note, Alligators (or crocodiles?) included in video. A.K.A. Extra awesomesauce)
    Reply With Quote Edit / Delete Reply Windows 7 United Kingdom Show Events Winner Winner x 7 (list)

  33. Post #113
    Gold Member
    TestECull's Avatar
    July 2007
    6,863 Posts
    I've always wanted to build one of these, but using my power source of choice would mean a rather complicated transmission is required. Either that, or several tiny little Cox engines with throttles.

    How easy are they to fly?

  34. Post #114
    Gold Member
    joost1120's Avatar
    February 2008
    10,254 Posts

    Absolutely awesome Multicopter video, in the Everglades of Florida.

    (Note, Alligators (or crocodiles?) included in video. A.K.A. Extra awesomesauce)
    Alligators.
    Also seems quite dangerous for the multi copter. Crocodiles and alligators can jump quite high and this guy was flying within reach.
    Reply With Quote Edit / Delete Reply Windows 7 Netherlands Show Events Friendly Friendly x 1 (list)

  35. Post #115
    Gold Member
    squids_eye's Avatar
    July 2006
    5,616 Posts
    Alligators.
    Also seems quite dangerous for the multi copter. Crocodiles and alligators can jump quite high and this guy was flying within reach.
    Worth the risk, it's an awesome video.
    Reply With Quote Edit / Delete Reply Windows 7 United Kingdom Show Events Agree Agree x 3Disagree Disagree x 1 (list)

  36. Post #116
    RagerTrader's Avatar
    September 2011
    1,708 Posts
    This thread makes me want a realistic RC V-22 Osprey.

  37. Post #117
    Gold Member
    thrawn2787's Avatar
    April 2007
    8,265 Posts
    Wait why the fuck was there a tiger
    Reply With Quote Edit / Delete Reply Windows 7 United States Show Events Agree Agree x 2 (list)

  38. Post #118
    2014 SH Pun Award Nominee
    Awesomecaek's Avatar
    January 2009
    20,928 Posts
    First actual physical work done on our quadrocopter.







    Fibreglass and carbon, bitch.

    It weights about 220grams, from tip of one arm to tip of the opposite, it's approximately about 50cm.

    Edited:

    I've always wanted to build one of these, but using my power source of choice would mean a rather complicated transmission is required. Either that, or several tiny little Cox engines with throttles.

    How easy are they to fly?
    Don't even think of building one of these with combustion engine. It's pointless, it's senseless, it's ridiculously complicated.

    At least the MikroKopter control board changes the throttle on the electrical engine several times during SINGLE TURN of the propeller. You simply cannot get precise enough throttle management on a combustion engine.


    Combustion engines would become feasible at much much bigger designs, where the slow reaction would be sufficient to stabilize the heavier, clumsier craft, but there's no chance you would get it working at these small scales.

    Edited:

    If you have a boner for combustion engines, interesting idea I am pondering about for some time would be using normal electric engines for propulsion, and single bigger combustion engine with a generator, which would recharge the battery. That should be doable, and would be rather cool.
    Reply With Quote Edit / Delete Reply Linux Czech Republic Show Events Winner Winner x 3 (list)

  39. Post #119
    Gold Member
    Thunderbolt's Avatar
    September 2006
    2,706 Posts
    There are a few guides to making your own or you can buy them pre-built
    http://www.kkmulticopter.com/
    I really really really don't recommend buying a pre-built one. Building one your self you know exactly what has gone into it and you have much chance of fixing it. Also home made can cost less then 30 dollars, pre-built are hugely expensive.
    TELL ME HOW PLEASE
    I wanted to build one, then I went to the site you linked and the controller board is 75.00 alone, not to mention the motors, controllers and everything else.
    Even if I bought the barebones PCB, I could never find a store that sells all the specialized parts like gyros & whatnot.
    And I don't have a hot air soldering station, which is kinda necessary for SMD parts

  40. Post #120
    2014 SH Pun Award Nominee
    Awesomecaek's Avatar
    January 2009
    20,928 Posts
    TELL ME HOW PLEASE
    I wanted to build one, then I went to the site you linked and the controller board is 75.00 alone, not to mention the motors, controllers and everything else.
    Even if I bought the barebones PCB, I could never find a store that sells all the specialized parts like gyros & whatnot.
    And I don't have a hot air soldering station, which is kinda necessary for SMD parts
    I myself am dealing with the overpriced Mikrokopter thing, but the KKmulticopter thing seems to be the way to go.

    I have zero experience with it, but I am probably going to try this $30 thing of theirs , after finishing this one.
    Reply With Quote Edit / Delete Reply Linux Czech Republic Show Events Friendly Friendly x 1 (list)