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crawl · 07-23-2011, 07:48 AM

Quote:

Originally Posted by BakedMopar

Something that caught my attention today, my motor has end play in it ( I can push the motor down a mm or so when botled to the motor mount). I don't remember if it did or not. Can someone confirm this?

Do you mean the play in the can? IE. in the 7HV the bottom half of the can, on top, can be moved up and down. If so that is normal. All Compass motors (and many others) do that.

TheBum · 07-23-2011, 08:14 AM

Quote:

Originally Posted by crawl

Do you mean the play in the can? IE. in the 7HV the bottom half of the can, on top, can be moved up and down. If so that is normal. All Compass motors (and many others) do that.

+1. There has to be some allowance for heat expansion.

crawl · 07-23-2011, 09:13 AM

Quote:

Originally Posted by myrseth

I hope you will comment on how it works for reference!

Tried the new motor internals on punchrc and hobbywing esc still just bogs like a madman. :-/

Sent from my SAMSUNG-SGH-I997 using Tapatalk

Azlum · 07-23-2011, 09:35 AM

Quote:

Originally Posted by crawl

Tried the new motor internals on punchrc and hobbywing esc still just bogs like a madman. :-/

Sent from my SAMSUNG-SGH-I997 using Tapatalk

Yup I'm here at the field with him and the new motor internals didn't help with power at all. His hyperion hk4035-560 has twice the power at least.

Sent from my HTC Inspire with Tapatalk

BakedMopar · 07-23-2011, 12:58 PM

Quote:

Originally Posted by crawl

Do you mean the play in the can? IE. in the 7HV the bottom half of the can, on top, can be moved up and down. If so that is normal. All Compass motors (and many others) do that.

Quote:

Originally Posted by TheBum

+1. There has to be some allowance for heat expansion.

Thanks Guys.

Quote:

Originally Posted by crawl

Tried the new motor internals on punchrc and hobbywing esc still just bogs like a madman. :-/

I don't have new internals but I'm not so trilled about it's "Brute" performance eighter.

helis101 · 07-23-2011, 01:01 PM

I have the replacement stator in my motor and mine has all kinds of power

Rob43 · 07-23-2011, 03:57 PM

I think once we get enough guys flying the new stator, we should be able to get some Eagletree data to confirm what it's delivering. I just programmed my K120HV ESC and ran the unloaded motor up and down to confim settings and such. I will be disappointed if this motor isn't the brute it was said to be. I spent too much on the ESC to afford a Scorpion motor

...LOL! To me, it didn't feel like the stator I removed. Didn't feel as much magentism, for some reason.

crawl · 07-23-2011, 06:55 PM

Im not talking just not a brute, im talking down right awful weak, bog in a flip.

Sent from my SAMSUNG-SGH-I997 using Tapatalk

Rob43 · 07-23-2011, 09:02 PM

Is that with the new stator from Compass installed?

BBRFST · 07-24-2011, 03:47 AM

I installed my new stator on Wednesday and the Mavrikk blades, flew a quick flight and with that set up I had some bog on FF to a tight loop. I blamed it on the blades being wider than my CYB, today I will fly with the CYB's and retest, will post my opinion.

crawl · 07-24-2011, 07:31 AM

Quote:

Originally Posted by Rob43

Is that with the new stator from Compass installed?

Yeah that is with the new stators. I may have just terrible luck and got another bad motor. I tested for continuity no problems there.

I will mess with timing and maybe try no Vbar gov again, but I tried all that with the last motor and it didn't make any difference.

Right now I am running the hobby wing on stock timing (5), 12khz, Vbar gov @ 1850 / 1950 on the stock 12t pinion.

Rob43 · 07-24-2011, 07:10 PM

BBRFST: how about performance with the CYB's...did you get out? I don't know what I will do if this motor isn't good or the blades bog it. I have used up all of my hobby funds and vacation time to build this model. Right now, I am feeling bad for Nankin who's supported us unconditionally, and there were way too many errors in the first run. I sold two helis and everything that went with them to build this heli.

Today, since I am still waiting for the Fromeco, I removed the tensioner to look it over. The carbon arms are misdrilled. I tried flipping mine over. It helped a bit.

BBRFST · 07-24-2011, 09:55 PM

Quote:

Originally Posted by Rob43

BBRFST: how about performance with the CYB's...did you get out? I don't know what I will do if this motor isn't good or the blades bog it. I have used up all of my hobby funds and vacation time to build this model. Right now, I am feeling bad for Nankin who's supported us unconditionally, and there were way too many errors in the first run. I sold two helis and everything that went with them to build this heli.

Today, since I am still waiting for the Fromeco, I removed the tensioner to look it over. The carbon arms are misdrilled. I tried flipping mine over. It helped a bit.

Well after flying today I would say the motor is not living up to the promise. I put the CYB blades on today and it pretty much flew the same as with the Mavrikk blades (which I thought was the cause for the bog), bogging on tic toc's and inverted loops. I didn't have this concern with the original motor. I'm torn as to whether to use the old motor (still not sure if I would fail in flight) and wait and see what the remedy is or going out and getting a Kontronik's motor. That being said the Kontronik motors are 520KV Compass motor is 570KV what's the difference?

Oh and the CYB blades are the standard ones not FBL or stick bangers.

Rob43 · 07-24-2011, 10:03 PM

I am thinking a Scorpion HKIII 4035-560 will be required to alleviate the Compass motor inadequacy. I don't know why is the heck we wound up with crappy motors when they tested the heck out of motors before releasing. Where's the Brute? I want the Brute.

jstnt · 07-25-2011, 05:23 AM

is that really compass motor on 7hv is powerless? can you guys make video on it? thank you

Azlum · 07-25-2011, 05:46 AM

Quote:

Originally Posted by Rob43

I am thinking a Scorpion HKIII 4035-560 will be required to alleviate the Compass motor inadequacy.

That's what I did to mine, and it turned the heli into a monster! Power difference from the Compass motor to the Scorpion was like going from a nitro .50 to a 12s 600e.

Sad, but true.

Mixmaster Pilot · 07-25-2011, 06:22 AM

So the concensus is the 4035-560 then?

I'll wait it out a little longer to see what Compass say regarding the lack of power, but it looks like I'll be buying a new motor before even trying out the replacement one.

crawl · 07-25-2011, 07:19 AM

It's worth giving the stock motor a shot. It looks like there are possibly a few people happy with the stock motor.

The Hyperion 4035-560KV is a cheaper but great option as well.

just a Scorpion HK4035 re branded (and supposedly with different bearings).

It was a monster for the couple flights I had it in the 7HV.

7HV 2100RPM 13t Bogggggg (1 min 9 sec)

joseca · 07-25-2011, 07:52 AM

In my 7HV I have installed ,,scorpion 4525 -520KV Limited Edition,, with pinion of 15T guided to 2100RPM, is a beast

Uploaded with ImageShack.us

Rob43 · 07-25-2011, 09:17 PM

I misunderstood...I thought the Hyperion motor was a typ-o, as I didn't realize they made a rebrand motor. Does it already feature the extended shaft like the HKIII, or is it an add-on? I couldn't tell from Readyheli's description. Is there another source?

07-23-2011, 01:01 PM	#66 (permalink)
helis101 Registered Users My HF Map location Join Date: May 2006	I have the replacement stator in my motor and mine has all kinds of power __________________ Jeff

07-23-2011, 03:57 PM	#67 (permalink)
Rob43 Registered Users Join Date: Oct 2008 Location: Midland, Michigan	I think once we get enough guys flying the new stator, we should be able to get some Eagletree data to confirm what it's delivering. I just programmed my K120HV ESC and ran the unloaded motor up and down to confim settings and such. I will be disappointed if this motor isn't the brute it was said to be. I spent too much on the ESC to afford a Scorpion motor ...LOL! To me, it didn't feel like the stator I removed. Didn't feel as much magentism, for some reason. __________________ = Rb43 =

07-23-2011, 06:55 PM	#68 (permalink)
crawl Registered Users Join Date: Jul 2008	Im not talking just not a brute, im talking down right awful weak, bog in a flip. Sent from my SAMSUNG-SGH-I997 using Tapatalk __________________ Chris D.

07-23-2011, 09:02 PM	#69 (permalink)
Rob43 Registered Users Join Date: Oct 2008 Location: Midland, Michigan	Is that with the new stator from Compass installed? __________________ = Rb43 =

07-24-2011, 03:47 AM	#70 (permalink)
BBRFST Registered Users My HF Map location Join Date: Dec 2006	I installed my new stator on Wednesday and the Mavrikk blades, flew a quick flight and with that set up I had some bog on FF to a tight loop. I blamed it on the blades being wider than my CYB, today I will fly with the CYB's and retest, will post my opinion. __________________ Atom 500 VBar (Takes a licking), MCPx 2s (Flying ), Atom 7HV-Bar (Flying LARGE!!)

07-24-2011, 07:10 PM	#72 (permalink)
Rob43 Registered Users Join Date: Oct 2008 Location: Midland, Michigan	BBRFST: how about performance with the CYB's...did you get out? I don't know what I will do if this motor isn't good or the blades bog it. I have used up all of my hobby funds and vacation time to build this model. Right now, I am feeling bad for Nankin who's supported us unconditionally, and there were way too many errors in the first run. I sold two helis and everything that went with them to build this heli. Today, since I am still waiting for the Fromeco, I removed the tensioner to look it over. The carbon arms are misdrilled. I tried flipping mine over. It helped a bit. __________________ = Rb43 =

07-24-2011, 10:03 PM	#74 (permalink)
Rob43 Registered Users Join Date: Oct 2008 Location: Midland, Michigan	I am thinking a Scorpion HKIII 4035-560 will be required to alleviate the Compass motor inadequacy. I don't know why is the heck we wound up with crappy motors when they tested the heck out of motors before releasing. Where's the Brute? I want the Brute. __________________ = Rb43 =

07-25-2011, 05:23 AM	#75 (permalink)
jstnt Registered Users Join Date: Aug 2007	is that really compass motor on 7hv is powerless? can you guys make video on it? thank you __________________ Team Compass - Atom 500 - Knight 50 3D - Odin 90 - Avant Aurora

07-25-2011, 06:22 AM	#77 (permalink)
Mixmaster Pilot Registered Users Join Date: Aug 2010	So the concensus is the 4035-560 then? I'll wait it out a little longer to see what Compass say regarding the lack of power, but it looks like I'll be buying a new motor before even trying out the replacement one.

07-25-2011, 07:52 AM	#79 (permalink)
joseca Registered Users Join Date: Apr 2010	In my 7HV I have installed ,,scorpion 4525 -520KV Limited Edition,, with pinion of 15T guided to 2100RPM, is a beast Uploaded with ImageShack.us Uploaded with ImageShack.us __________________ Lynx Oxy Team Pilot Last edited by joseca; 07-25-2011 at 09:47 AM..

07-25-2011, 09:17 PM	#80 (permalink)
Rob43 Registered Users Join Date: Oct 2008 Location: Midland, Michigan	I misunderstood...I thought the Hyperion motor was a typ-o, as I didn't realize they made a rebrand motor. Does it already feature the extended shaft like the HKIII, or is it an add-on? I couldn't tell from Readyheli's description. Is there another source? __________________ = Rb43 =

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