I've built a cdrom brushless that can spin a 8x4 and 9x4 GWS prop on 2s 800mah lipo. I am building a depron biplane. I am interested to see what someone else out there is flying.

alright here is a pic. It has enough to pull its own weight and then some. all it needs is a worthy pilot.
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Could you please give more info on the motor performance and the plane's weight. I just ordered a kit from go brushless and hope to receive it within the next few days, I will be experimenting with the motor construction thanks.

im not positive what sort of out put, but i know that Andrew Jeskey was using a cd rom motor on a shock flier, it had awsome performance, but like i said i dont know the details

how did it hover, what guage wire and how many winds are you using, what batery are you using, what is the AUW, what ESC are you using, and also what prop are you using, sorry for all the questions but im making a mini shocky cap 232 from free plans off the internet, I posted a thread called mini shocky cap 232 to see if i could get any help, also can you give us some dimestions of the plane such an Wingspan and lenght

I got these plans on the net for free it is 30% smaller than the original set.
Power system
gobrushless.com motor
3x6x2.5 bearings also GB
3mm shaft stolen from a cd rom
23 winds of 26Ga aka newbie wire from GB
star wind
12 of the 5x5x1mm n45 magnets from GB
3mm shaft adaptor from local hobby store
8x4 prop GWS (I had to make the hole wider to fit on the prop adaptor)
Castle creations pheonix 10 (best service department anywhere)
lipo homemade pack 2cells 800mah a guy sells them on ebay for $5 a cell! They really work, and they have regular-solder tabs already attached!
The plane will hover with power to climb out, but not to rocket out. I am not the best pilot so i can't hold a hover very long yet. I dont own a tach, amp meter, or scale so I can only say that it has power to hover and the motor gets pretty warm but not quite hot. A friend of mine has a scale so I will weigh it later.

If you go to the "links" of http://www.gobrushless.com you will find a section called somthing like "1 hour cdrom tutorial." You would have a stroke if you soaked up all the information there about building cdrom motors

would a 3 cell lipo pack be any better than a 2 cell i was thinking of using the Kokam 350's, i was thinking an 800 would be too big and heavy

what kind of plugs are you using from your motor to ESC, and ESC to Battery

I tried three cells and it got real hot. I like the amount of thrust that I get from two cells. You are probably right about the 800mah pack being heavy I will get one of the 3somthing packs soon. I got the 800mah packs because they are dirt cheep for lipos. here is a picture of the battery/ esc hook ups.

The battery hook up is a deans ultra mini or micro or somthing like that, very easy to find. The esc to motor plugs are futaba plugs taken apart and hooked to the motor and esc then shrink wrapped, this allows me to use one esc on different planes. The futaba connectors held wires that are bigger than my motor wires so I figure that they are hefty enough to handle the current. I used to be able to attach multiple pictures but now RC universe tells me I can only attach one, whats the deal?

thanks for answering all my questions, how much do those batteries weigh and how do i contact the guy you got them from, i might just order me some, i think i might buy one of the Kokam 340 2 cells and make a pack like you did and see what the difference is, do you know what the c rating is on the 800's are, the reason i ask is because if the rating is too low i dont think i will get any, the Kokam 340's have a c rating of 20c which from my understanding is very good, the only problem there is that the 340 2 cell packs cost about $30 a piece, that is outrageous compared to you homemade packs, im sorry for asking all these questions, I am new to electrics if you cant tell

I don't think that these batteries are more than 5C or 8C, however I don't get much over 3 or 4 amps. 800x8=6400 and 340x20=6800 I believe that that means 6.4 amps for my 800 pack and 6.8 amps for the 340 pack. Both should be very safe, really it is just finding a ballance, between duration of the battery and the weight of the plane, that gives the best performance.
I just sent the "800mah guy" a message on his ebay account to see if he has an email address we could use to contact him outside of ebay, and to see if he has any smaller cells. When he gets back to me I will send you the information
The biplane is 55cm wide and 60cm long
These are pictures for compairison of size

Thank a bunch for the pics and the info.

Here is the email address of the guy who sells those 800mah cells for $5. He says sorry those are the only cells he offers.
[email protected]

how do you hook up the speed control i cant figure out which wire goes were

There are two wires on one side of the controller they go to the + and - of the battery. There is a triple strand wire of three colors these three wires are stuck side by side and have a connector on the end that goes to your reciever. The other end of the speed controll has three seprate wires usually red black and white. These three go to the motor. You connect these three wires to the three wires on the motor in any order. if the motor spins the wrong way you have to switch any two of the three wires between the motor and controller. When I get back from soccer tonight I will post pictures.

here are the pictures. two of these three planes run on gobrushless motors. The picture of the esc wires and where they go and one of where I mount it on my plane.

hi jeremygaughan can you tell me what speed the cd roms are that you are getting the motors from are they x24 x32 or x52 i got one out of a x32 but it's a bit thicker than the one you show height wise but its not as wide

I get most of my stuff from http://www.gobrushless.com That motor that you have sounds like the one I pulled out of a cd rom. It wont make a lot of torque but will be able to spin a small prop very fast. You would be surprised at how much plane it could fly. I have a picture of one and the plane it is on. I would suggest to go to gobrushless and get some wire, probably 26guage and some magnets 5x5x1mm and put 18 to 20 winds and six magnets in this configuration NSNSNS (N=north S=south) Building motors is very gratifying when they get a plane in the air. Does your sprocket looking thing in the motor have 9 arms or 12, If it has 9 the website I mentioned before has a tutorial on how to build a motor from it. Don't forget to to save the 3mm rails that the lazer rides on in your cdrom. You will want them later if you continue to build brushless motors.