CustomCDR Baby Bullet Motors are here!

[ryanl2006]

It has been a long road but these little gems are finally here. We are now producing the CustomCDR Baby Bullet motors. These are the tiny brushless motor cousins of our bigger 20mm line. These are based around a 16.5mm diameter stator.

We will be releasing more options and versions in the future, but our first wind is the sporty wind. This motor is built perfectly for converting your Cox micro warbird or similar airframe to brushless power.

The ready to fly weight of these motors is a tiny 10.7 grams. They are meant for 2 cells and the recomended prop is a 4x3 graupner. Each motor has a propsaver built in but there is also plenty of shaft sticking out to use a spinner or prop adapter. The shaft is 2mm hardended steel. The tube mount sticking out the back is 8mm so it works with most all standard mounts available.

For those of you who are not familar with our bigger motors...all of our motors use all machined parts and curved n50 magnets. These are some of the highest quality motors you can find.

We have a limited quantity of these available now. Click Here To Get One! (http://www.customcdr.com/cgi-bin/ccp51/cp-app.cgi?usr=51H7602981&rnd=847890&rrc=N&affl=&cip=65.110.250.187&act=&aff=&pg=prod&ref=bbsport&cat=babybullet&catstr=HOME:babybullet)

Here is a link to a video of a cox warbird doing some cruising on half throttle. Video courtesy of pdawg who did testing on this motor. Video (http://www.rcgroups.com/forums/showthread.php?t=648085)

[crossup]

One last try- I've been emailing you, posting questions in the 16.5mm threads for 4 months but never got an answer. Will you be selling any more 16.5 kits?

[ryanl2006]

No, we will not be producing kits for these motors.

[crossup]

Ok too bad, I love your motors

[ryanl2006]

I am sorry you are unhappy, but ever since the beginning of the 16.5mm project we had said all along 'get in now on the 16.5mm project because we will not be offering kits later.' We left that project open for sign ups for quite a long time, I am sorry you missed it, but there is not much I can do about it now. If you still do not understand please PM me, this thread is about the new release of our prebuilt motors and I would appreciate keeping it on topic.

Thanks,
-Ryan

[sinkinpat]

This motor looks promising. I have been looking for a brushless to use in an acrobipe. looking to spin a 4" prop with a spinner. do you have any specs on this motor? thrust current draw etc? and on different props? I like the graupner props but at 3 or so bucks each and the fact that they break if you touch them I would rather run a .85 gws prop. have you done any testing with them? 4x4 or the 4x2.5?

[ghostmechanic]

I have been waiting very patiently for this motor since you told me in an email back in November that it was coming out in a couple of weeks. Now i have so many irons in the fire that I am tapped out. I hope I can get one.

Steve

[Sonic1]

we will not be offering kits later.

I was hoping to buy some too :(

[ryanl2006]

I have been waiting very patiently for this motor since you told me in an email back in November that it was coming out in a couple of weeks. Now i have so many irons in the fire that I am tapped out. I hope I can get one.

Steve


These are here to stay so you can get one whenever you are ready. :) I know it took longer to get these out then expected, we are sorry about that, but they are here now. :cool:

[ghostmechanic]

These are here to stay so you can get one whenever you are ready. :) I know it took longer to get these out then expected, we are sorry about that, but they are here now. :cool:
Hey that's all that matters.

Steve

[Atom1025]

We have a limited quantity of these available now.


These are here to stay so you can get one whenever you are ready

Slighty confused? Is quantity limited or are they here to stay?

[morphs]

Slighty confused? Is quantity limited or are they here to stay?


I have enough parts to make close to 1,000 motors, so I would say they are here to stay..

[morphs]

To everyone wanting kits... We mentioned multiple times in the group buy thread that there would be no other kits offered, so I don't understand how this could be confusing or leave a bad taste in anyone's mouth. :confused:

You can always buy a motor and re-wind it if that's what you want..

[ghostmechanic]

Slighty confused? Is quantity limited or are they here to stay?
I was just about to ask that. Thanks for clearing that up.

Steve

[ryanl2006]

Slighty confused? Is quantity limited or are they here to stay?


Limited quantity in that I have a small number built on hand and ready to ship. Here to stay in that we will be building more, unlike on the group buy, there is no deadline on when to purchase by.

[ghostmechanic]

Cool! It looks like a sweet little motor. I can't wait.

[power]

Any numbers on the 4-3 Graupner?? I want to get an idea on what the little bugger eats...


Mike

[Sonic1]

Not trying to beat a dead horse, but if you have the parts, and there is demand, why not sell them? You do that with your other motors.

[NitroCharged]

I think it's rediculously overpriced for what it is.... :(

[crossup]

Not trying to start a fight here but if you've used their product before you would not be saying that. I pay $45 for a Efliite Park 250 and by comparison its like something carved out of stone by a cave man.. $59 is not only in line with the competition but the quality of CustomCDRs parts make comparison unfair to CustomCDRs competitors. These motors are called Billet motors for a reason and others aren't saying that because they are't billet. The difference will be immediately apparent when you crash them...and after.



I think it's rediculously overpriced for what it is.... :(

[NitroCharged]

No, that's fine. I appreciate input to bring me up to speed on this manufacturer.
Where on the site can I find specs on this motor? Efficiency, current draw etc...?? I'd want to know what bang for my buck this motor would give ;)


To get that motor to my doorstep would cost 100 odd bucks local.... which personally, I think is way too much for a small can cd rom motor. I guess I am too used to making these sized ones myself for 15 bucks.

[morphs]

No, that's fine. I appreciate input to bring me up to speed on this manufacturer.
Where on the site can I find specs on this motor? Efficiency, current draw etc...?? I'd want to know what bang for my buck this motor would give ;)


To get that motor to my doorstep would cost 100 odd bucks local.... which personally, I think is way too much for a small can cd rom motor. I guess I am too used to making these sized ones myself for 15 bucks.


First let me say these are not cd rom motors.. They are custom built from the ground up. We had the stators designed and made specifically for us in Germany, the aluminum parts were designed by us, and made in the US by one of the best nc machinists I know, the shafts are hardened stainless steel, the bearings are sealed ZZ rated and the magnets are curved n50.. these motors are small, custom outrunners, not re-worked cdrom motors..

These motors are not cheap for us to build. We pay a pretty penny for the parts. I bet we pay more for the parts, than you think the whole motor is worth.

I have one of the 10.7 gram singles taking 10 amps in on 2s and producing 70 mph pitch speed. This will make for an awesome micro pylon plane power system. There are others with low kv winds producing over 200 grams of thrust at less than 5 amps on 2s.

[morphs]

Here are some better numbers for the speed wind.


2s
graupner 4x3 on 2s, at
7.5 amps
45-50 watts
17,500 rpm
50 mph

2s
Gws 4040
18400 rpm
9.6 amps
7.6 volts
73 watts
70 mph


2sAPC 4.2x4
17800 rpm
9.5 amps
7.3 volts
70 watts
68 mph

[NitroCharged]

So it would require a minimum 25C 400mah 2 cell to avoid cooking the battery at WOT as a 20C 300mah 2 cell just wouldnt be able to cut it (6A)..? I ask because if they are going into the cox birds (as an example), the battery needs to be light and small.

[crossup]

PLEASE tell me where you get parts this small ...just to find stators this small we have to either rob MD players or laptop harddrives....and its usually luck of the draw as to what you get and generally $10-15 per try. I've been watching/looking for 2 years for sources and other than this and a few other special projects I've not found anything.
Dying to make anykind of brushless sub 14 gram motor cheaply.. I wouldnt expect much performance


No, that's fine. I appreciate input to bring me up to speed on this manufacturer.
Where on the site can I find specs on this motor? Efficiency, current draw etc...?? I'd want to know what bang for my buck this motor would give ;)


To get that motor to my doorstep would cost 100 odd bucks local.... which personally, I think is way too much for a small can cd rom motor. I guess I am too used to making these sized ones myself for 15 bucks.

[morphs]

So it would require a minimum 25C 400mah 2 cell to avoid cooking the battery at WOT as a 20C 300mah 2 cell just wouldn't be able to cut it (6A)..? I ask because if they are going into the cox birds (as an example), the battery needs to be light and small.


Then you go with one turn cooler. I am running a 12 turn with a 480 pack and it only draws about 4.5 amps with the 4x3 prop and still has plenty of pitch speed and thrust. By the way, we have fit much bigger packs than a 480 in a cox micro and they fly great.. Lighter is not always better.. especially when you are talking about a speed plane..

[ryanl2006]

No, that's fine. I appreciate input to bring me up to speed on this manufacturer.
Where on the site can I find specs on this motor? Efficiency, current draw etc...?? I'd want to know what bang for my buck this motor would give ;)


To get that motor to my doorstep would cost 100 odd bucks local.... which personally, I think is way too much for a small can cd rom motor. I guess I am too used to making these sized ones myself for 15 bucks.


If you think this is too expensive then you do not have to buy one. We did not design these to be for everyone. Its funny you call this just a "small can cd-rom" when in reality, not a single part comes from a cd-rom. :rolleyes:

We were not shooting for bang for your buck, instead we design motors simply for their bang. Ferrari's are not cheap either...

[ghostmechanic]

I think they are a great bang for the buck from what I see. They are a little expensive in a way but, everything that has to with smaller in this hobby is. Compared to some of your competition your prices are not bad at all. I am getting one as soon as I can.

Steve

[crossup]

Your a smart man Steve, as you know I'm a bit obsessive with light weight, be it IMAC or LRF but the Billet motors are the bomb when it comes to performance at any weight.
Since F3A is pretty specialized, unless you wind for it you're giving up performance. I'm trying to perfect mini F3A so the right wind on these little jewels looks like the way to go there too.
Biggest problem I have with these motors is the opposite of the guys with cheapo CDROM motors...too light! Seems like these put out enough power you can haul around more plane than you can ever balance at least with stock designs , so you have to design your own plane around the light motor. I'm fine with that :D

[NitroCharged]

Crossup, my homebrew 7g BL gives my shockie sukhoi unlimited vertical on a 3 cell 400 at a rocket of a speed so I am extremely happy with the performance I get from making my own to date. It always draws a crowd as to how the heck I get a tiny motor like that to scream so well (20mm can - I did a thread on it)

Morphs, thanks for the input - impressive stats for 2cell operation indeed! Now I have seen the specs it is impressive for its size giving, as Ryan put it, "plenty of bang" :)

I think these will do well. I am dissapointed they mioved this post from the indoors as that is where these will really get most attention. :cool:

[crossup]

WHOA, thats REALLY sounds like what I want, a 20mm motor at 7g? wow, you can bet I'll be searching that puppy out soon as I get home...
To me the large DIA thin stack makes the most sense- my BB 20 wind loves huge props but being stock size is too big and powerful for anything below 6 oz

[cfw]

Are you guys planning on releasing different winds of this motor?

I'm looking for a lower kv motor.

thanks
chris

[ryanl2006]

Chris- Yes I have pretty much decided on the 'cool wind,' I will PM you.

[Sonic1]

Yes I have pretty much decided on the 'cool wind

I'd like to see something that would turn a GWS 7x6 SF prop at less than 2 amps. Would make a good LPS B2C upgrade if it had about 120g of thrust.

Jeff.

[ryanl2006]

That is asking a bit too much from a motor this small without a gearbox. The wire would have to be extremely thin to be able to handle that big of a prop with that little of an amp draw direct drive. Our current 'cool wind' swings a 6x3 prop but it does so at 5.5 amps. If you want to be in the 2 amp range you will have to use a gearbox.

[Sonic1]

I think if you could make one with lots of turns of thin wire, you would have a very popular motor for micro RC applications. I forgot to mention above that the 7 x 6 SF at less than 2A was on 2S. A 6 x5 SF at that current would be OK too. There is no good GWS B2C brushless replacement out there right now.

These are close, but are 1.5 times the price of yours...
http://www.bsdmicrorc.com/productDetails.cfm?ProdID=10395&catID=10037

Jeff.

[Thomas B]

I am still searching for a hot little outrunner like these to use for GWS EDF50 conversions.

The Feigao and Medusa motors are good for the EDF40, but a little outrunner that pulls about 8-9.5 amps on any of the EDF50 impellers is a better choice for the EDF50.

A shaft mount like these makes it easy to fit to the EDF50 as well.

Could you guys test one of your hot winds in an EDF50? Or, I would be more than glad to test one for you...:)

[morphs]

I will get a fan and try out a few winds for you..

[Thomas B]

Let me know the moment you have one that will do about 9 amps on with the 3 bladed 3" pitch EDF50 impeller or the 5 bladed EDF50 impeller.

This will be an awesome hop up for those that have the snigle fan FTM jets and the original stock GWS A-10 models.

Using the same threaded shaft as a GWS drive has makes it VERY easy to drill out the impeller and bolt it on the motor.

[cfw]

Do you guys have any numbers for the cool wind motor?

I built up a little 21" Yak and am finishing installing gear on it. It's about time to fire it up and see how it performs.

hoping it'll do well on with a AUW of 96 grams.

thanks.

[crossup]

cfwdude, that is a pretty heavy YAK...I've scratch built a 24" version and she is around 60grams RTF- totally ballastic with a MM 6gram motor...you'll have enough power with a cool wind but its gonna be a fairly hot plane

[Thomas B]

Morphs, any luck yet with a fan wind motor for the EDF50?

[morphs]

I bought a 5 blade fan, but I have not played with it yet. I have a few things in front of it, but I should get to it soon.. I will let you know what I come up with... Do you by by chance know what prop loads the motor about the same as the 5 blade fan??

[morphs]

Do you guys have any numbers for the cool wind motor?

I built up a little 21" Yak and am finishing installing gear on it. It's about time to fire it up and see how it performs.

hoping it'll do well on with a AUW of 96 grams.

thanks.


I just wound an 18 turn of 28 and it pulled 5 amps and produced a little over 6 oz. of thrust on 2s spinning a gws 7x3.5

I think a little hotter would be better..

[morphs]

Ok, I ran a 12 turn mini single up with the fan. I screwed up and got the wrong fan though. I got the edf 55 with 6 blades. It says the blades are 2245x6.

Anyway I busted the shroud trying to get the stock brushed motor out, so here are the numbers without the shroud. On 3s I got 10.7 amps and 26,800 rpm. The watts were just over 100 and it stayed cool.. Now I just need to figure out how to mount it..

[wormyalon]

So whats the kv rating on the "sport wind" currently for sale on the web page?

I've got a small 100 gram depron wing which currently has a 12mm medusa afterburner 5300kv, how does this motor compare to the medusa 12mm? Would it be good on a 3x2 prop? I'm looking for lighter alternatives to the medusa which is 17 grams, heavy compared this little thing. Anyone have any idea how performance would compare?

[RadioAv8tor]

morphs.do you have parts for "Baby Bullet Doubles"?

[morphs]

Yes I do. Sorry for the late reply..