View Full Version : Idea how to make a motor fly
Bladers
Nov 22, 2005, 01:00 PM
yea am posting from school right now
see the point of this thread not like the last one
is how to make a motor fly am not trying to make a helicopter
ok so and also the Bat shoe am making some of you already know about it and what it requires to work
but first i need to know how a motor can fly
this is what i tried.
About The Project
1)composition notebook cover as propeller
2)i have 5 motors and i tested it all didnt work
3) most of your saw the pic i drew.
if you want to answer my question do it in this order and number them
Questions
1) how to make a motor fly?
2) do i need to buy a Blade cause i dont have money to?
3) does it need a tail blade to fly?
4)list what am doing wrong and what ever you want to write.
Bat Technology :mad:
Bat pack with ice technology
Bat suit
Bat shoe
Bat Gun
Bat Wave
Profile
Am onlty 13 and i dont have a job and i cant buy no heli to study it so that why am asking your and about that Bat technology me and a computer enginner and a embeed programmmer is helping me and am a VB programmer.
Info
your do know what a computer enginner and a embeed programmmer is they are the people who make all this computers your using and game system stuff like ipod and so on alll the electronic stuff your use they made it that why i wanna learn the tools they use so i can make the Bat Wave it all programming---like-- the chips circuit board micro controller/proccesor.
if you wanna help me you can my aim is Bladerskb
my email is memzone@hotmail.com
rememeber am not making this to sell it am making it so i can use it to save the world. and stop all those evil people and there doings.
Minimole
Nov 22, 2005, 01:14 PM
rememeber am not making this to sell it am making it so i can use it to save the world. and stop all those evil people and there doings.
OK, that changes it all totally, Im sure a lot more people will be willing to help you now, now that we know that you wont be selling this flying shoe/car/motor/heli/person gadget, but will be fightin against all the baddies...
So are you kind of like the little guy from the Incredibles?
Duane :D
RMihara
Nov 22, 2005, 01:31 PM
Bladers,
I'm sorry I shut down your earlier thread but the situation was getting out of hand with it and I'm glad to see you repost with more details on your project.
Since the nature of your thread is non helicopter based, your question will best be served in the Modeling Science forum (http://www.rcgroups.com/forums/forumdisplay.php?f=136). I'll move your thread over to that forum but will leave a redirect here to help you get more exposure on your thread.
Best of luck to you on your project!
-Roger
TMorita
Nov 22, 2005, 02:30 PM
Here is a picture of the Hiller flying platform:
http://www.unrealaircraft.com/wings/hillier_platform.php
Look at the size of the fan on the Hiller platform.
Look at the size of the fans on your batshoe.
Notice there is a huge difference.
Toshi
johnbyrne
Nov 22, 2005, 04:40 PM
To make a motor fly you need to stop the counter rotation (torque) of the main blade. This is done on a single shaft by counter rotating props which means gear box. Also, typically this means two motors but if you want free flight then one will be enough. WIth this said, you could make one like the old rubber powered penny planes, stuck with prop on top spun by rubber band (or motor in this case) and a second prop with opposite direction pitch mounted to the bottom of the stick. The motor and battery will turn due to torque in the opposite direction of the top prop but in doing so will drive the fixed prop on the bottom. Thus, the motor will turn at about 1/2 the rpm as the top prop which also means the top and bottom props will turn at about the same rpm. Up she goes.
Didn't Peck Polymer make one of these? Maybe do a search.
BTW, I am assuming you are kidding about the bat shoe and bad items so I'm taking this serious for the moment. If on the other hand you are serious about the bat things then ignore all I've said and get help right away. ;)
Bladers
Nov 22, 2005, 06:45 PM
ok i need all the help i can get
Bladers
Nov 22, 2005, 06:49 PM
and also i kno nothing about torque and stuff fill me in write it in a way i can understand
BMatthews
Nov 22, 2005, 10:02 PM
Have you heard in Science class the law of physics that says "For every action there is an equal and opposite reaction". This is what the guys are talking about.
Take an electric hand drill. Pull the trigger and the chuck spins and you feel nothing. Now hold the chuck with your other hand and pull the trigger. The chuck tries to spin in your hand holding it but it also kicks back at your hand holding the drill. That's torque. Or rather the motor torque is turning the chuck and counter torque is trying to spin the drill in your other hand. Action and reaction in a balance just like the law says.
To make your motor fly you need to deal with this torque. One way of doing this is shown below in the picture. Yes it's a helicopter. But it deals with the torque issue. It does this by using the engine to spin the propeller and the counter torque from this spins the rotor attached to the engine backplate the other way. The body is along for the ride and to move the Center of Gravity lower so the whole thing is stable. The rotor shaft spins in the body so the body does not rotate... at least not much.
You mention a motor but not what motor it is. It's quite possible that if it is a cheap motor then it will not have enough power to lift itself up. Let alone lift itself as well as some batteries to power it. What motor is it?
And a helpful suggestion. The shorthand messages with no capitals and no punctuation and short spelling may work on MSN or ICQ but around here it makes it very hard for us "traditional folks" to read what you are trying to say. If the spelling is hard then at least use periods and capitals to help separate your ideas and questions so we have a fighting chance. Thanks.
Bladers
Nov 23, 2005, 07:11 AM
thank you
all i need now is a blade
i need to buy one from the dollars store
see i got 5 motor
one from a dollar store toy remote car
other from 2 radios i open other from my old computer printer.
other from a big steraeo. i forget the names of the motors cause i pilled off the cover and some dont have cover i wish i had a cemera i will try to get one and also a blade and the rotor is the hard path it means i got to customized the blade with hot knife to dig the hole in the middle it a dollar store gun blade thing it looks that the blade in your helicopter the gray blade
Bladers
Nov 23, 2005, 07:14 AM
i have been told that
l need either gear set or a really really fast motor to self support its weight. And l need two sets of blades either stacked (but spin opposite directions) OR one horizontal and one verticle to offset the main blades counter torque (like a normal heli)
the one verticle to offset the main blades counter torque - is that the tail motor.
now i know what i need.
1) i need a blade but is it the blade with 2 propellers?
2) fast motor where can i get that and is my motor i got before fast?
3) and about the gear set what is that?
Tom Harper
Nov 23, 2005, 07:46 AM
Bladers,
This sounds like some of my projects when I was 13. Lot's of unknowns and zero $ budget.
Read what BMatthews says above. He has laid out the problem very well.
Do your motors run? Are you using batteries?
Bladers
Nov 23, 2005, 12:46 PM
no am not using battries am using a samsung battery charger and yes 5 of my motor do run meaning run you mean work yes it works
Bladers
Nov 23, 2005, 01:36 PM
let me let your in in some info
the landing skid was made by a shaving stick thingy
http://www.freewebs.com/batmandesign/Heli.JPG
BMatthews
Nov 23, 2005, 09:48 PM
Those motors do not hold much promise of being properley designed to draw the power needed to lift themselves. Those types of motors are used just to turn things under light load. To move air and lift things you need to be able to push a fair amount of current through the motor to spin the prop fast enough to lift.
Rotors or propellers made from that card stock are not going to be stable enough to hold the pitch and lift well. You need to move over to something like pine or balsa wood and carve or build up better rotors that will offer good lift with lower drag for the amount of lift produced. And you'll likely need some motors that are more suitable for this sort of experimenting.
Something like the Johnson 250 motors that commonly sell for about $2.50 to $4 are excellent.
To play with props to find what will work you can attach the motors to a long and light 1/4 sq balsa stick and just hold the one end and see if the other lifts. Or you can add a pivot to the stick so it can swing up and down like a teeter totter and mount the motor with the rotor pointing up. Add power and then see how well it lifts.
Tom Harper
Nov 24, 2005, 07:38 AM
Bladers,
Your rig looks like a good start.
BMatthews teeter toter idea is a good one. You may not get airborne but you can see the motor lift and try different props. You could get enough information for a hot science fair project.
Karl Bē
Nov 24, 2005, 10:55 AM
When younger, I played around with several motors too, trying to get useable power out of them. One of the biggest obstacles was firmly mounting a propellor to the motor shaft. My best success came with an Erector set motor that had a 1/8" shaft. I found a used 1/2A prop that I was able to hammer onto the shaft. The motor was designed to be used with a 2 cell battery holder, or about 3 volts. This didn't spin the prop very fast. A square 9 volt battery spun it faster, but not by much, and it died fairly quickly. I then found that I could get a minute or two of extremely high RPM by hooking up the flat battery pack from a Polaroid film cartridge.
The motor found itself attached to a small boat made from lumber scraps, maybe a foot long and 6" wide. It had enough power to plow through the water at ripple speed and get just far enough away that I couldn't reach it with a broom handle. Then the wind got it and it drifted away. That was okay though, since by that time the Bugs Bunny cartoon show was on. :)
Bladers
Nov 24, 2005, 01:21 PM
thx for the help i will try and giv your updates
P-38J-Lightning
Nov 24, 2005, 05:58 PM
bladers why are you posting this in every single section? so far its fs wanted. micro helis eletric planes...
HoverBovver
Nov 25, 2005, 06:05 AM
'cause its important...he's going to save the world :rolleyes: .
Tom Harper
Nov 25, 2005, 09:22 AM
Karl - you did great. Actually got onto the water.
I had a model RR motor that turned pretty fast. On the beach near Richmond, CA I found crates of batteries that were dumped from WW2. They were big and put out 45V. I didn't know a volt from a ham sandwich so I hooked them up to the motor. Wow! It really ripped! All I had to do was figure out how to get a prop on the motor and make it carry a 2 pound battery.
Lost interest and turned my 'talents' to making a ram jet from tin cans and an O&R .23 needle valve.
Bladers
Nov 25, 2005, 09:38 AM
hey am making the heli on a car protocol. ok i put one motor in front, one in the back and a long boom at the back, and a tail motor, and a motor near the back for the car tires
havent tested it yet but now am using plastic that i cut with hotfire
and i ducked taped it and i screwed the long boom with the tail motor
ChrisP
Nov 25, 2005, 10:30 AM
And then there's Charybdis.........
An alternative and effective way of making a motor fly.
Bladers
Nov 25, 2005, 11:04 AM
really had to read got to print it
Bladers
Nov 26, 2005, 06:41 PM
my parents trown away my motor and they paid me 10$ am tired of trying to get my motor to fly all i need now is how to make technology yoy know about computer chips
i need a computer/electronic engineer to tell me what toolto use and is the code same as computer languaqe codes.
or a embedd programmer to help me
i will start by making a simple calculator
SaMx
Nov 26, 2005, 11:10 PM
u hav a point ther, its important to no how to do the teknology computer stuf and language codes and chips, especily if ur goin too use them to fight all the bad guys lik batman. a calculator is a good place tooo start bceause it's easy and u can have embedd programmers heilp u. it's way easyer then make a moter flie, wich is crazy hard with no enginer typ exerience.
SaMx
Nov 26, 2005, 11:11 PM
I'm sorry, I just had to. It's cute that this kid wants to make stuff, and clearly he's a smart kid, with a lot of imagination. I especially like the batpack with ice technology. lol.
Bladers
Nov 27, 2005, 09:43 AM
and that why am looking for someone to help me and tell me what i need the tools are important.
am a VB programmer and before i got to know how to program in visual basic and visual basic .net i alway saying i need the software cause you need it to learn
Bladers
Nov 27, 2005, 09:49 AM
and i think i should post on this forum http://www.rcgroups.com/forums/forumdisplay.php?f=135
what your Mod's think
your do know what Mod is
Karl Bē
Nov 27, 2005, 01:49 PM
For programming and electronics, look to the DIY (do-it-yourself) Electronics forum: http://www.rcgroups.com/forums/forumdisplay.php?s=&daysprune=&f=199
ElectroLawndart
Nov 29, 2005, 02:16 AM
Bladers,
Check out Steve Moris' Helirocket on the MLB website. In the original test form he was able to hover it by modulating the throttle.
The addy is: www.spyplanes.com.
Steve is a member of this group, I think his username is MLBCO.
Hope this helps.
Dart
Bladers
Dec 02, 2005, 10:50 AM
i finally learned i need a fast motor
SaMx
Dec 03, 2005, 09:42 PM
you need a fast motor, and it would be a good idea to gear it down to use a bigger prop (and a real prop) and some way to stop the wole thing from torquing. Even a few fins sticking out to slow it down could work.
Bladers
Dec 07, 2005, 01:00 PM
well it dont really matter now am gonna buy a hover copter for 20 dollars
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