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05-21-2007 09:20 PM 13 years ago
| irush
rrApprentice Greensboro, NC |
Direct drive tail options Ok everybody, I am ready for the comments to fly. I got the direct drive upgrade that was mentioned on blade cp repair.com. I have had mixed results. The goofy little mounting plate/tail guard is made of rubber and breakes easily. But, what I have had problems with is the heat coming off that motor. The heatsink is scorching to the touch. I do believe that I finally fried it, with very little time on it. I read about the EDP-50XC motor with EP1280 prop in the may issue if RC heli(a fine blade is featured there). These little props I suppose just press on with out damaging the motor. Does anyone know what is the difference is between the 50XC motor and the 50/H motor? And how can I keep that motor from overheating? |
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05-21-2007 09:38 PM 13 years ago
| Micro-Maniac
rrElite Veteran Pasco,Washington Formerly: Captain Chaos |
There's no difference between the 50XC and 50/H motors - Try a smaller prop like the EP3020 which is a press onThe CPRepair.com method is overkill - You don't need all that stuff to have a well performing DD tail - Just do a little adjusting to the stock tail housing to mount the DD motor exactly like the stock motor and press on a 3020 prop |
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05-21-2007 11:02 PM 13 years ago
| irush
rrApprentice Greensboro, NC |
so pressing that prop on does no damamge to the motor? |
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05-21-2007 11:16 PM 13 years ago
| Gino CP
rrKey Veteran Philippines |
You have a good chance of ruining it. Perhaps the top reason for failed DD motors. You need to press it with a vise or a c-clamp squarely and slowly. You have to stay clear of the capacitors when doing this.But you can use your 2mm prop adaptor with the 3020 (0320) prop. Bore it out to 2mm. Mount it on the prop adaptor using the two washers and the nut only. This doesn't damage the motor and is a fool proof way of setting up a delicate DD setup.Turn on a dime. Flip like a quarter. Feel like a million bucks. |
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05-22-2007 01:57 AM 13 years ago
| tryan02
rrProfessor Canton, Missouri |
hey guys if the holes too tight lube it up! It will slide right on I started breaking in my motors first so the brushes don't arc as we are putting more than the recommended voltage on them to start with which will make arcs even greater. I would agree with micro but I think the kit turns around the motor and will use the air to cool it gotta help. Ive never used it though. and they are all cn121-rxc motors some are just better than others. |
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05-22-2007 09:11 AM 13 years ago
| bigdad390
rrVeteran East. Liverpool, Ohio |
Yes just a drop of oil on the prop hub and it will push right on with your fingers, no need to use a vise or clamp! |
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05-22-2007 01:21 PM 13 years ago
| Gino CP
rrKey Veteran Philippines |
Bad idea. I've seen my props spin off after fast piro. Lubing it only makes the grip worse. Do it right. Press as is or use a prop adaptor.Turn on a dime. Flip like a quarter. Feel like a million bucks. |
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05-22-2007 02:27 PM 13 years ago
| dignlivn
rrApprentice Cullowhee,NC. |
irush I'm using the GWS tail
mount, minus the the tail
skid ( it broke off ). This
puts the Tail Prop on the
Pilots side and prop wash
flows over the T. motor.
My T. motor is bearly warm
after 7 minute Hover/flight and
my T. motor is 3 months old
and counting. I do have spare
Motors, just in case. I press
my Props on also. Bobdignlivn |
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05-22-2007 02:48 PM 13 years ago
| irush
rrApprentice Greensboro, NC |
Thanks guys. So far the DD tail rotor seems the way to go. Just gotta get the right configuration. I have had a time getting the 4 in 1 adjusted right too. I did have a 3020 rotor on that motor but i was too timid to press hard enough, and it flew off in my front yard(I'll find it with the lawn mower).I changed the out my motor last night with a new one(i always order double of what i need). I took a good look at the heat sink on it and it almost seems like the fins are too short and the base is too thick to really dissipate heat. What is your take on that heat sink? Also it doesn't matter what direction the motor spins? I know that other brushed electric motors are very particular about which way they spin due to brush damage. |
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05-22-2007 07:18 PM 13 years ago
| tryan02
rrProfessor Canton, Missouri |
Im not using a grease to lube just a drop of oil that dries quickly. I would agree any lubricating oil with Teflon or silicone would be a mistake. I guess thats why KY is waterbased. |
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05-22-2007 09:31 PM 13 years ago
| irush
rrApprentice Greensboro, NC |
Ha! Is that the warming kind? |
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05-22-2007 10:23 PM 13 years ago
| tryan02
rrProfessor Canton, Missouri |
Dont use the warming kind the tail will get too hot.I'm using the blade cpp heatsink on DD Tail don't have enough time on it to tell anything but I hovered a whole pack so, very little air movement over motor. And it was warm to touch maybe cup of coffee warm. Not good enough a pilot to really put it through the paces but with a 3030 prop. I actually saw the tail drift right and left. I did not know my left stick actually went to the left I was always adding right for slow tailmotor. I learned just because it drifts a little, don't go adjusting the proportianal your just waisting your time. |
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05-23-2007 12:47 AM 13 years ago
| irush
rrApprentice Greensboro, NC |
Ah, i have chased the tail for a little while when I first started flying. Think I am going to leave off the heat sink this time and see how it goes. |
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05-23-2007 12:48 AM 13 years ago
| tutelar-rc
rrKey Veteran Nobleton, Ontario - Canada |
I installed the DD tail from BladeCPRepair.com (including 3020 prop), and found it works great!When the GWS tail mount broke (cool looking, but I think they are made out of the wrong material), I enlarged the holes in the original tail mount and mounted the motor the other way.Both ways, my motor only gets slightly warm to the touch - definitely not as hot as a cup of coffee. This is doing hovering and FF (I am still learning loops and rolls).I find the prop adaptor made the entire prop installation a non-issue. Just put the prop adaptor on the motor and bolt on the prop. In addition, when the motor burns out, I can still use the same prop on the same motor. |
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05-23-2007 01:12 AM 13 years ago
| tryan02
rrProfessor Canton, Missouri |
Not McDonald's cup of coffee just a little warmer than main motor I believe the bladecprepair changes the prop so airflow goes over motor keeping it cooler also right? . And as for the prop adapter I didn't waste my money I bought six props.Oh wait a minute maybe I did |
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05-23-2007 01:15 AM 13 years ago
| irush
rrApprentice Greensboro, NC |
I agree, the tail mount is made of the wrong stuff. I broke two with what really were just rough landings. I think I am going to use the stock mount, no heat sink,the rotor adapter, and the micro heli carbon fiber tail fin. That one looks cool and is strong. Maybe I just got a bad motor, cuz that first one heated up like lava. |
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05-23-2007 01:17 AM 13 years ago
| irush
rrApprentice Greensboro, NC |
waste of money?! I don't think I have ever wasted money. No really.... |
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05-23-2007 01:50 AM 13 years ago
| Gino CP
rrKey Veteran Philippines |
When you enter this hobby, you ARE already wasting money. It's not called heli crack for nothing. So enjoy your earnings and stop counting. Do what you want.Turn on a dime. Flip like a quarter. Feel like a million bucks. |
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05-23-2007 01:53 AM 13 years ago
| irush
rrApprentice Greensboro, NC |
Oh I do so,
I dont keep recepits, and dont add it up. money cant buy happiness, but it helps. Anyone asks how much it costs, I say about one credit cards worth.stupid gravity...... |
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05-23-2007 02:00 AM 13 years ago
| tryan02
rrProfessor Canton, Missouri |
I fly so bad advantage hobby keeps telling me how much I spend and enrolled me in special club discounts. I was joking I didn't waste money on an adapter but I wasted money on 6 props. much like you suggested the money just funnels out lets start a credit card company that gives back money on RC heli parts so we can get our 3% to afford our habit. |
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