Apex Mini 300 DIY Brushless - $27.99 - USA Dealer

[realdeal]

I would like to announce that Stuff We Like has agreed to distribute the Apex Mini 300 DIY Brushless motors. The Apex Mini 300 is a CNC machined outrunner kit that provides unmatched ease of assembly and outstanding performance. All this at an unbelievable price - $27.99 each or $24.99 when buying 4 or more kits.

These are now IN STOCK and ready to ship.

See my website for more information: http://www.stuffwelike.net/store/home.php?cat=381

Product Assembly Manual and Test Data: http://www.stuffwelike.net/files/mini2.pdf

Manufacturer's Website: http://www.eflypower.com/modules/news/

Dealer Inquiries Welcome - keith@stuffwelike.net

Keith Hollifield
Stuff We Like
www.stuffwelike.net

[rcnutt]

It looks like a beautiful kit at a great price but...To me a gearbox defeats the purpose of an outrunner. Plus gearboxes add to the cost, the weight and the bother. Can this motor be wound so it will turn an 8"-10" inch prop direct drive? What would you compare this motor to, a 300 or a 400 size? Also at 1.8 ounces (50.4grams) it seems kind of heavy. Unless it puts out quite a bit of thrust, it wouldn't be worth the extra weight. Just my 2-bits. RCNutt

[realdeal]

Hello RCNUT,

Thank you for your interest. The motor is actually only 32g by itself. The motor WITH gearbox is still only in the 50-55g range depending on how you wind it. This is about the same as the AXI 2208 motor but this will turn a MUCH bigger prop, handle more current, and put out some tremendous thrust figures.

Here is a link to some test data for various props, batteries and winds:

http://www.stuffwelike.net/files/apextestdata3pic.jpg

Sorry for the odd use of a .jpg file with text. This was the smallest file size I could come up with. It is readable if you go to 100% size.

The only difference between the two motors is in the shaft and the front can. The GD version is perfectly sized to accept the GWS pinion and fit the gearbox.

The direct drive motor is mostly usable as a speed 400 replacement at less than 1/2 the weight. It is going to turn props in the 4-6" range. The highest performing setup I have on the chart is a 4 wire/7 turn using a 4.5x4 prop on 3-cell Lipo. It is turning 23000 rpm at 11.6A and the tester claims 450g (15.6oz) of thrust.

The gear drive motor is also a speed 400 replacement and has been tested with props up to 12x6 size. The best performing combo on the chart is a 3 wire/7.5 turn geared at 5.28:1 turning a 12x6 prop. At 10 volts it is getting 4830 rpm, 13.1A current and reads 820g (29oz) of thrust.

The manufacturer has also run a comparison test between the GD version and the AXI 2208/34. Here are those results:

Weight
AXI 2208/34 58.0g
APEX 4W7T+GWS EPS-400C 54.5g

Running Test (GWS 1047 Prop) (as attached files)
Thrust Current
2cell AXI 2208/34 532g 9.35A
2cell APEX 4W7T+GWS EPS400C-F 526g 8.90A
3cell AXI 2208/34 830g 14.55A
3cell APEX 4W7T+GWS EPS400C-F 875g 14.35A


These numbers come from several testers but they generally match what I have seen with my own motors. There are MANY combinations that have not been tried. One nice thing I have found about these DIY kits... If you don't like the performance you get there is plenty of wire in the kit to rewind the motor :D. Experimentation is half the fun with them.

I have attached a picture of the motor installed in the GWS 400 gearbox to give you an idea of the size.

Regards,

Keith Hollifield
Stuff We Like

[rcnutt]

That is a nice little unit. It is better than an Axi motor. The Axi motor weighs a couple of grams less and you don't have the bother of a gearbox, but costs over $75! What I would suggest is to offer a couple of different gearboxes, props, and kit combo for those who don't have a gearbox in their stash. Otherwise you have the bother of dealing with 2 companies and extra shipping costs.I would like to see what would happen if you used a lot more winds if there is room, on ithe stator to see if the prop size could be bumped up to a 7" or 8" prop. Is that possible? This would save a few grams. Again, the Gearbox is the biggest downside, I think. Your site says at 10 volts it is getting 4830 rpm, 13.1A current and reads 820g (29oz) of thrust. MY thrust calculator ( which is generally optimistic) says this prop at that rpm gives more like 22 ounces of thrust. Are these real world figures or just projections. Just my 2cents. RCNutt

[realdeal]

RCNutt - You and I are definitely on the same page regarding accessories. I started looking at gearbox sources last night. I'm not ready to commit to a $3K GWS buy-in so if any distributors out there read this and want to sell some gearboxes contact me. I'm also looking for a source of props.

You can definitely drop the number of wires you use and go to more turns to use a larger prop. This will lower the KV and drop your current. With 3 Wires I'd feel comfortable in the 13-15A range and you can fit about 9.5 turns of .3 wire. With 2 wires I'd try to stay in the 7-10A range and that should allow you to get up to 13-14 turns. If you go to 1 wire I would keep it under 5A but you can fit around 27 turns on the stator.

Regarding thrust figures - These are real world taken by various people. The methods are not identical nor are they done in a controlled lab. I do take all results with a grain of salt. I think it would be better to look at the performance of the motor over a wide range of the data presented to gauge its performance rather than isolate one result.

I'm curious... What thrust calculator are you using?

Could you calculate a GWS 11x4.7 prop turning at 6400rpm?

Thanks!

Keith

[rcnutt]

Here's the site: http://www.lcrcc.net./thrust_calc.htm There are lots of other goodies on that site. I would say use the biggest wire (single strand) possible to get to at least 19 turns. Then it should turn at least a 7 inch prop, and hopefully. These thoughts are just what I have picked up reading the forum and some of my own experiments. I would say just buy a small quanity of gearboxes, spurs and pinions to see if they will go. Propellers are availible at most good hobby shops. Jack the price up a tad to cover handling , postage etc. I think it would be a real incentive for modelers to buy your stuff. What else I would have to buy is the first thing I look at when shopping for a power plant. RCNutt

[realdeal]

Cool site. The calc I asked about comes to 29oz which is about what was measured. Thanks!

[realdeal]

All of the kits that I have are NEW version 2 kits of this motor. The original version required a washer to be inserted between the can and rear bearing during assembly. The new version has a shoulder that eliminates the need for this washer. Please ignore this step on page 9 of the assembly manual until we get the manual updated. I have included the picture of the step I am talking about.

[Bilbobaker]

Keith
I just got the two motors that I ordered and I have a question about the assembly.
Is the shaft supposed to be that easy to install into the can?
Will locktite hold it? It seems too loose.
I would prefer the press fit of the gobrushless GBX series.
I really like how well they are made though.
Pretty impressive little motors.
Bill

[yakman]

yeh the fit is a little sloppy. Loctite will hold it, I glued the shaft a little crooked and nearly wrecked the shaft getting it out.

[Bilbobaker]

yeh the fit is a little sloppy. Loctite will hold it, I glued the shaft a little crooked and nearly wrecked the shaft getting it out.

How does one get it properly aligned so as not to have just such a problem?
The stator fit seems loose as well.
Thanks
Bill

[realdeal]

I will pass along the comments regarding shaft fit to the mfr. I have been successful by waiting to put the shaft in as the last step. I put the glue on the shaft, slide it into the can and slide the assembly over the stator and through the bearings. You can reposition the shaft if it gets moved and then let everything dry.

Regards,

Keith

[Bilbobaker]

Well I had great sucess just putting red locktite on and droping it in and hour later it was rock solid and perfectly aligned.
Great little motors.
I wish some folks would make a larger motor with 12 stator poles so I could build a LRK wound brushless motor.
Any Ideas?
Bill

[raymfl]

Wound my motor with the supplied wire with 26 turns and delta connection. It worked fairly well but I rewound it with 26ga 20 turns WYE connection. Mine is mounted on a Shock Flyer 730 2 cell TP and 9 x 5 HD prop. Duration is solid 10 min. with vertical dropping off around the last 2 minutes of flight, but will stil hover.
Vertical from a hover is adaquate. A 600 3 cell goes for 10 min. with an excess of power and speed. Only put Loctite on the stator and bell. Rear mount holds rear bearing in and the magnets supply enough force to keep the front together. Had to send the first bell back bacause it had way too much runout (wobbled)

[Bilbobaker]

I wound one with 12 turns of 24 awg wire and put it in a GWS 400 gear box and mounted it to my slow stick.
With three cells of etec hd 1200s it will launch straight up to the clouds. WOW!!
Talk about bang for the buck, the motor doesn't even get warm. It's only pulling 8.2 amps with a GWS 10x6 HD prop.
I really like this little motor.
Bill

[Ron van Sommeren]

... I wish some folks would make a larger motor with 12 stator poles so I could build a LRK wound brushless motor... http://www.gobrushless.com has 12teeth stators

[Bilbobaker]

http://www.gobrushless.com has 12teeth stators
Ron,
My friend bought some of them and has yet to find a bell to fit them.

Any idea who might sell a proper bell assembly for the 12 teeth stators?
I asked for someone to post a supply in your tips and tricks thread.
Thanks
Bill

[Ron van Sommeren]

It seems these APEX motors are the same as the ones sold at www.aircraft-world.com
There's already been lot's of discussion, lots of info:
http://www.rcgroups.com/forums/showthread.php?t=294891
http://www.rcgroups.com/forums/showthread.php?t=294892

[sawicki]

It seems these APEX motors are the same as the ones sold at www.aircraft-world.com
There's already been lot's of discussion, lots of info:
http://www.rcgroups.com/forums/showthread.php?t=294891
http://www.rcgroups.com/forums/showthread.php?t=294892

Hello Ron,

I agree that APEX motors appear to be also sold by aircraft-world but I think the threads you mention reference the AC-DIYMOT-VL (http://aircraft-world.com/shopexd.asp?id=2746) while the APEX appears to be the same as the AC-DIYMOT-** (http://aircraft-world.com/shopexd.asp?id=2304) which is a smaller motor. Am I mistaken ?

Thanks,

Felix

[Bilbobaker]

Hello Ron,

I agree that APEX motors appear to be also sold by aircraft-world but I think the threads you mention reference the AC-DIYMOT-VL (http://aircraft-world.com/shopexd.asp?id=2746) while the APEX appears to be the same as the AC-DIYMOT-** (http://aircraft-world.com/shopexd.asp?id=2304) which is a smaller motor. Am I mistaken ?

Thanks,

Felix

I'm not Ron but I agree with you those are totally different motors.
I have not yet tried the VL motor but I am very impressed with the "apex" or small motor that, "aircraft world," and, "allerc," as well as, "stuff we like sells".
I've only used the motor in a gear box but it really rocks.
Bill

[raymfl]

Tried the motors (DIY) from both Aircraft World and the Apex from Stuff We Like. They are the same motors. Nice quality motors and the newer ones have epoxy insulated stators that leave more room for wiring. Haven't tried the new one from Aircraft World but I think it is a double stator if my memory serves me right.

[realdeal]

APEX Standard (Gear Drive Version) Motors are on sale now - $21.99 each. Shipping starts under $2 for First Class Mail.

You guys cleaned me out of direct drive for a few weeks. Thanks!

http://www.stuffwelike.net/store/home.php?cat=381

Keith

[Bilbobaker]

APEX Motors are on sale now - $21.99 each. Shipping starts under $2 for First Class Mail.

http://www.stuffwelike.net/store/home.php?cat=381

Keith
Great news Keith
I ordered another one of each.
Bill

[fly_boy99]

Ditto!!!

Time for more FUN!!! :D

[Suntzu]

These motors are awesome. :D I got mine direct from eflypower.com here in australia.

I have 3 geared units. I use 2 of the geared units as direct drive for to ensure parts compatability. There no real difference between geared and DD but the geared is a lot more flexible.

I have done about 10 different winds. I can tell you this. They are most efficient running small props direct drive at a max of 13 amps on 3S. I have had excellent results with about 11t 0.5mm single wire on a apc 6x4 on a epp wing. Very fast. I have founf .5mm wire to take a LOT more amps than the supplied .3mm wire. I think 4mm is good also.

I also run one geared in an estarter.

You got to get a wattmeter, because if you gear it and stuff up the calculation you will burn the motor in 10 secs. Thats why I prefer direct drive. By the way, in my estarter I get about 900 RPM more on the same amps than a geared 350C brushed, and a lot less weight.

Essentially, what I have found is that if you let the motor "unload" its its fine, but if you load it up so its constantly trying to rev up, it will overheat very quickly. Its a matter of deciding the application/airframe, the batteries used , the prop and THEN doing the wind you need.

Of course these are just my experiences and other may differ in their experiences.

In terms of value for mony, I dont think theres a better motor available. The build/wind is DEAD EASY. :)

Have fun.

I love these motors! and no i dont work for anyone associated with it. Just a happy E-flyer! :p

[mustangsforme]

I'm a real newby to DIY brushles, and I see references to 12 turns, 16 turns etc...does this mean 16 turns total, or per pole, or per phase?
I just received an Apex 300 mini, but no instructions, so I'm on an adventure getting information!
Thanks
Adrian.

[RonD]

It is the total per pole. By the way to avoid confusion, most people use the term "tooth" not "pole" for the stator and the term "pole" only for the magnets on the can.

[mustangsforme]

Ah, well that clears THAT up for me!

Thanks Ron, Much appreciated....

BTW, I see in examples a wire quantity of 2 mentioned, but haven't seen any data with 2 wire windings.....is it worth a try?

I have 1 and 3 wire tables, but nothing on 2.

[Suntzu]

Im happy to offer advice on windings for an application if you PM me. The apex has 9 poles or tooth. 3x3x3 Y windings are best. :)

[mustangsforme]

OK thanks suntzu, what props & current figures could I expect with 3x3x3?

I spose thats with .3mm wire....

I'm wanting to be able to drive 5 to 7 (7035 GWS) inch props for sport use, not 3d yet.

[Suntzu]

OK thanks suntzu, what props & current figures could I expect with 3x3x3?

I spose thats with .3mm wire....

I'm wanting to be able to drive 5 to 7 (7035 GWS) inch props for sport use, not 3d yet.

Sorry i was just trying to explain the way the Y winding works, its 3 wires around 3 poles making 9 poles in total.

Im using a 11T single 0.5mm wire on 2S 1200 etcs and a 7035 hd gws, pulling 7 amps and good thrust, approx 350grams+. Its in a critical mass depron pylon foamy. Goes nicely. I found .4mm and .5mm wire easier to wind and can take more amps. Did you get that link to the forum i sent with dozens of different winds and results?

My favourite wind is 0.5mm 10.5T single wire on a apc 6x4. Pulls 130watts on a 3S pack ;) and is like a speed 400 on steriods :eek: (but half the weight). I have found this wind to be close to max amps for this little motor. Had my speedwing 400 up to serious speed on this setup. Prolly 60mph+

I only use Y winding cause theres not enough room/winding space to make a delta powerful enough.

[Bilbobaker]

My best discovery on winding them for gear drive is to use 12 turns of 24 awg. I have no idea what the metric equal will be.
That motor on a GWS 400 gearbox makes a slow stick into a 3d SUV. Nice long and powerfull flights using 8to 9 amps on three cells.
For direct drive this takes patience as I use 16 turns of 24 awg or for more efficiency use 17 turns on 25 awg. This is a cool running motor with some serious power and speed on a APC 5.7x3 prop.
Can anyone tell me the metric equiv of those wire sizes that I use?
Give one a try. If you can't find the wire I'll send you enough to wind a test motor OK
Or mahaps someone with give info on the same metric size.
Bill :)

[Suntzu]

I use a similar wind also, 11T 0.5mm on a 6x5.5 3S lipo. Very fast. You need the motor directly exposed to disipate the heat, in a wing its no problem.

WIth gearing you HAVE to ensure that the motor can unload or the amps climb, I found GWS HD props best for this.

[Happy|Harry]

lolol the winding data on efly's website lits wind counts with half turns :rolleyes:

phil

[raymfl]

Conversion charts for wire sizes can be found in serveral places on the web. My chart shows 24ga to be the same as 5mm and 25ga at 4.5mm. Guess I could post the chart if anyone wants it.

[Bilbobaker]

Conversion charts for wire sizes can be found in serveral places on the web. My chart shows 24ga to be the same as 5mm and 25ga at 4.5mm. Guess I could post the chart if anyone wants it.
Ya post it.
I would like to see it.
Bill

[Suntzu]

lolol the winding data on efly's website lits wind counts with half turns :rolleyes:

phil

I found the instructions very helpful on the website actually. I had never built a motor before and I was successful first go with the mini apex. ;) The instructions were great and the feedback from eflypower was excellent.

I assumed that the 1/2 turn meant to take say an 11T and finish up with the wire on the correct side of the pole , hence a half turn to get the wire in the right spot for soldering, so it was useful information to me to reinforce what I was doing. Great stuff.

My inside contact has advised me there will be a larger, more powerful Apex model soon.... :D

[Magnum9]

I have one in my Depron 3D bipe using 3 strands, 0.3 wire, 7 turns in a GWS 5.28:1 gearbox with a 12x6 prop on 3S.

http://www.rcgroups.com/forums/showthread.php?t=311552

It is an awesome little motor and very efficient. I recently swapped from a GWS to an APC prop and it made a huge difference. With the GWS prop it had slow pull out from hover and very limited vertical, but now with the APC it has solid punch out and much better vertical performance. The motor is only just warm after a full pack, in fact the lipo gets much warmer than the motor ever does.

Suntzu, I have just begun flying an EPP wing (Mini-Bee, windrider.com.hk) and will upgrade it soon to an APEX. Any suggestions for winding a motor for speed on 3S in a 10oz wing?

EDIT: Eflypower have the APEX and Align 10A ESC as a combo deal at the moment for $69, and I just bought a Jeti brushed ESC and GWS-EDP-300H for my wing for similar money! Oh well, gives me a chance to learn to handle the speed of the wing in steps I suppose.

[Suntzu]

Ive dropped brushed motors due to the apexs and a few others being cheap and good.

On a wing it depends on the prop size and speed that you are after. Id try a 11T 0.5mm single wire. On 3S and a 6x4 and a 6x5.5 it will give you about circa 11amps I recall. The performance will be very serious on that wing. I tried a 9T 0.5mm single on a 500g speedwind 400 and it was very quick. The motor was maxed at 13amps though on 3 s, circa 130watts. I found thicker wire gives more power and takes more heat. Though on a wing, the motor gets a heap of airflow so hotter winds are ok.

Fo less amps, a 0.3 12turn would be ok I think. Theres a ton of info on the eflypower forums on this.

Have a go and get back to me.

PS: I have the align plus apex coming in the mail from efly, i have 3 apex motors now. :p

[raymfl]

Here is the wire chart

Ray

[CrashingDutchman]

Conversion charts for wire sizes can be found in serveral places on the web. My chart shows 24ga to be the same as 5mm and 25ga at 4.5mm. Guess I could post the chart if anyone wants it.

I think that should be: 24g = 0.5 mm and 25g = 0.45 mm

CD

[Ron van Sommeren]

@crashing dutchman
Are you familiar with http://www.modelbouwforum.nl

Groeten ;) Ron van Sommeren

[raymfl]

I think that should be: 24g = 0.5 mm and 25g = 0.45 mm

CD

Yes, that is quite correct. Generally the wire size is discussed in whole numbers (with the people I fly with), but I shouln't have posted it that way. Sorry if I missled anyone.

Ray

[Suntzu]

Aircraft World seems to have anew apex "type" looking motor on thier site. It looks fantastic actually. :D Has anyone got one and will this be the new more powerful apex big brother? :cool:

http://www.aircraft-world.com/prod_datasheets/ac/diymot/ac-diymot-2207.htm

[Magnum9]

That looks very nice, must have only gone up on the site today. Nothing on eflypower, so I would say it could be an ACW design rather than the bigger APEX. Either way, I want one of those on my wing now!

[Suntzu]

I just ordered the new motor linked above. I reckon it will be a screamer!

I will try a direct drive wind for a wing, but im in unchartered territory as theres no stats. Great stuff! :)

[JLSalas]

Can anybody tell me which is the maximum power you can obtain theoretically with the ACW AC-DIYMOT-2207? The web site don't tell anything about this DIY motor.

thanks,

JL

[raymfl]

Try this site: http://www.eflypower.com/modules/news/
There is alot of info just on the Apex motor that I think you will find helpful.

Ray

[raymfl]

You could also go to the Go Brushless site. There you can find quite a bit of information for the size stator you have. I thought you had the Apex motor but I see it must be the new kit with the larger stator.

Ray

[tashley]

Does anyone know a supplier in the states for parts for these motors? I'm looking for the new style stator and not having any luck.

Tom

[PerfectStranger]

I know you can buy the stators at aircraftworld. they sponsor the forums here. located in japan but shipping is only 2.50 and you get it sooner rather than later. i think the stators are $2.00 or so. this is the stock stator so it may not be what you're looking for. they sell other parts too i'm pretty sure.

matt

[raymfl]

What are new style stators? The early Apex had stators that had plastic caps on each side of the stator and the newer ones have come with epoxy insulation when I ordered them.

[tashley]

The first one I built was packaged in a plastic bag and had a rubberized coating on the edges of the aramature and the second one I built was packaged in a nice plastic box and the insulation was an enameled type.
The rubberized stuff was a pain in the a$$ as it kept coming loose as I made my winds. The enameled stator is far superior and is to my knoweledge the new style. The stator that Matt was refering to may just be the one I'm looking for. Anyone out there know for sure?

Tom

[Magnum9]

The one at ACW is the correct one for the APEX, but it looks like it is the old one with the black plastic end caps for insulation. I bought a new APEX last week and the stator was insulated with green enamel.

[raymfl]

I have found both stators useful. The one with the plastic insulators won't accept as much copper but are easier to stack the stators. I have bags of salvaged CD ROM motors and some matching stators that were used to get 3 more stator plates on one of my motors. The enameled stators are easier for me to wind and can get more turns or larger wire around them. Only the early motors came with the plastic insulators from my experience.

[tashley]

I suppose I have never seen the earliest stators with plastic caps. The ones I was refering to had a black rubberized coating on the outside edges which sluffed off and got caught under the copper when you were winding. The new ones have the enameled coating which is very tough.

[raymfl]

Never seen the rubber coating, not even on the ones I've salvaged.

[Allan Aguilar]

I have an Apex Mini 300 with 3mm shaft for DD application, however, I would like to use this motor for a geared application, which will use a 3mm shaft tapered to 2.3 mm.

I've checked from http://shop.eflypower.com/ website and the shaft that I am looking for is not available from them. I found the required shaft size from http://www.aircraft-world.com/shopexd.asp?id=2626. Will there be any issues when I install this to my APEX Mini 300 brushless motor considering this is of the same size ? I am also considering buying this shaft, http://www.aircraft-world.com/shopexd.asp?id=2908.

Is there anybody here that can spare me/sell me your extra shaft or direct me to other website who sells this shaft.

You can PM me if you are willing to sell your spare. Thanks and I will appreciate your response/s.

[tashley]

Allen, there should be no problem in using the shaft from Aircraft world as it's the same shaft just turned downed on the end for the G/D model. To be totally sure shoot Dave an e-mail and ask him.

[Magnum9]

That first shaft is THE actual shaft from the APEX motor. Aircraft world used to sell the motor and still have spares on the shaft. I have bought a few to convert my DIY2207 to GD.

[Allan Aguilar]

:p Thanks for the inputs. Eflypower responded to me that they can still have the shaft available, already placed an order with Aircraft World.

Thanks again :)

[Flappy]

I just got one of these little motors along with a spool of 22, 26, and 30 awg wire from radio shack. I'm winding for DD 5.7x3 or 6x4 with a target of around 12 amps. I'd like to try a single wire and just fill it up. Any suggestions for a newbie? Delta or Wye? 22 or 26 awg?

[realdeal]

FYI - The Apex 300 motors have been discontinued.

The Rocket 2207 DIY is the replacement motor. The 2207 is easier to build and comes with printed instructions. It is only 3g heavier but much more suited for use as a direct drive motor turning larger props. It can still be easily wound for 4-5" direct drive props.

Product Announcement here:

http://www.rcgroups.com/forums/showthread.php?t=420738

Link to product here:

http://www.stuffwelike.net/store/product.php?productid=16464&cat=0&page=

Thanks!

Keith

[Bilbobaker]

Allerc.com still has several on sale of the apex 300.
$19 if I remember right.
Bill

[Flappy]

$19 if I remember right.
That's why I got it. . . 33% cheaper than the 2207

[raymfl]

$29 is too much for a kit when there are so many choices for a little more that don't need to be put together. Got mine (Apex) for $19.

[Magnum9]

There are not many (if any) in that size and weight range with high enough Kv to spin small props at high rpm though. You can wind the APEX to spin a GWS 4x4 at 25,000rpm no problem.

[Flappy]

There are not many (if any) in that size and weight range with high enough Kv to spin small props at high rpm though. You can wind the APEX to spin a GWS 4x4 at 25,000rpm no problem.
Do you know roughly how many turns? Y or Delta?

I wound my Apex w/ 8 turns and it's pretty full with #22 wire. I still have all the leads hanging out, so I can still connect Y or Delta.

[Magnum9]

Your wind sounds pretty good, if you terminate Y you will have good results with smaller props. Start with something like a 4 x 3 and work up until you get the current draw around 12 amps. From what I have read, it seems 120-130 watts is the upper limit for this motor with good cooling.

[Flappy]

Thanks for the data.
Great stuff.

[Allan Aguilar]

I found a used magnetic contactor from my basement which came from my furnace when it was repaired. Last night, took it apart and removed the magnet wire. I believe it is a ga. 26 size and red in color. Looks like a high quality wire and enamel insulation. The whole roll is more than enough 5 to 10 sessions. That will save me some money from buying magnet wires for the next 2 to 3 months. I'll rewind my Apex 300 to night with this wires.

Check your basement and garage, maybe, there are some old and unburnt magnetic contactors, transformers and relays just sitting waiting to be noticed. It will save you some money.

Have a great day ahead ! :p :) :rolleyes: :cool: :D