Fun, Learning, Friendship and Mutual Respect
START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Compass Model Helicopters > Atom 500


Atom 500 Compass Atom 500 Model Helicopter Discussion


Reply
 
Thread Tools Display Modes
Old 06-13-2011, 03:03 PM   #1
brian94066
Registered Users
 
Posts: 3,491
 
My HF Map location
Join Date: Apr 2007
Location: San Bruno California
Default New aftermarket motor for the Atom 500 - possibly

Scorpion 4015-1070kv

http://www.readyheli.com/MIK4465-Sco...E_p_38416.html

could get good, who knows
brian94066 is offline        Reply With Quote
Old 06-13-2011, 06:33 PM   #2
TheBum
HF Support
 
Posts: 33,193
 
My HF Map location
Join Date: Jul 2007
Location: McKinney, TX, USA, North America, Earth, Solar System, Milky Way, Universe
Default

You couldn't use any of the Compass pinions on it: it only has a 5mm shaft. The 500 and 6HV stock motors both have 6mm shafts.
__________________
Alan (just call me "Bum"; no need to be so formal)
HeliFreak Support
Compass Atom 500 (V-Bar), *MIA* Compass 7HV (V-Bar), Dart Tin DT520E V2 (VBar), Stingray 500

Experience is something you gain only after you need it.
I wouldn't mind social media so much if it didn't involve people.
TheBum is offline        Reply With Quote
Old 06-13-2011, 06:57 PM   #3
arcweld
Registered Users
 
Posts: 581
 

Join Date: Jan 2008
Location: Melbourne, Australia/Cambodia
Default

One of the reasons I love Compass is you just don't need aftermarket motors etc.
Sure it's fun to play around but for power and efficiency the compass motors just can't be beat.
I'm starting to notice a few Compass motors appearing in other brand machines too.
__________________
Atom 500 V-bar
FANG IT!
arcweld is offline        Reply With Quote
Old 06-13-2011, 07:32 PM   #4
crawl
Registered Users
 
Posts: 1,558
 

Join Date: Jul 2008
Location: Maine, USA
Default

Quote:
Originally Posted by arcweld View Post
One of the reasons I love Compass is you just don't need aftermarket motors etc.
Sure it's fun to play around but for power and efficiency the compass motors just can't be beat.
I'm starting to notice a few Compass motors appearing in other brand machines too.
Ditto. I have seen the 6hv in a bunch of Fusion 50's, and even in a few Trex 700's lol.
__________________
Chris D.
crawl is offline        Reply With Quote
Old 06-13-2011, 08:36 PM   #5
Ghostrider267
Registered Users
 
Posts: 332
 

Join Date: Jun 2009
Location: sonoma county
Default

isn't the 500 motor a 5mm shaft?
At least all the atom 500 motors that I have are 5mm....
__________________
7HV, 6HV, atom 5.5, atom 500, warp 360
Compass rep / Team Gens Ace
Prostarhobby.com / Hobbypartz.com
Ghostrider267 is offline        Reply With Quote
Old 06-13-2011, 08:58 PM   #6
TheBum
HF Support
 
Posts: 33,193
 
My HF Map location
Join Date: Jul 2007
Location: McKinney, TX, USA, North America, Earth, Solar System, Milky Way, Universe
Default

Quote:
Originally Posted by Ghostrider267 View Post
isn't the 500 motor a 5mm shaft?
At least all the atom 500 motors that I have are 5mm....
Not unless the 1050Kv motor went to 5mm, which I have a hard time believing. My 1080Kv motor is definitely 6mm.
__________________
Alan (just call me "Bum"; no need to be so formal)
HeliFreak Support
Compass Atom 500 (V-Bar), *MIA* Compass 7HV (V-Bar), Dart Tin DT520E V2 (VBar), Stingray 500

Experience is something you gain only after you need it.
I wouldn't mind social media so much if it didn't involve people.
TheBum is offline        Reply With Quote
Old 06-13-2011, 09:26 PM   #7
Jimmy!
Registered Users
 
Posts: 2,769
 

Join Date: May 2008
Location: Portland, Oregon
Default

*Just checked w/ calipers

The main part of the shaft (measured at the bottom of the can) is 6mm, but reduces to 5mm. The pinions have a 5mm bore.
At least this is the case on my 2 Atom motors and 3 pinions.
Jimmy! is offline        Reply With Quote
Old 06-13-2011, 09:31 PM   #8
TheBum
HF Support
 
Posts: 33,193
 
My HF Map location
Join Date: Jul 2007
Location: McKinney, TX, USA, North America, Earth, Solar System, Milky Way, Universe
Default

Quote:
Originally Posted by Jimmy! View Post
*Just checked w/ calipers

The main part of the shaft (measured at the bottom of the can) is 6mm, but reduces to 5mm. The pinions have a 5mm bore.
At least this is the case on my 2 Atom motors and 3 pinions.
I guess I just never measured outside the motor. I know the motors take 6mm ID bearings and a 6mm snap ring.
__________________
Alan (just call me "Bum"; no need to be so formal)
HeliFreak Support
Compass Atom 500 (V-Bar), *MIA* Compass 7HV (V-Bar), Dart Tin DT520E V2 (VBar), Stingray 500

Experience is something you gain only after you need it.
I wouldn't mind social media so much if it didn't involve people.
TheBum is offline        Reply With Quote
Old 06-13-2011, 09:52 PM   #9
Ghostrider267
Registered Users
 
Posts: 332
 

Join Date: Jun 2009
Location: sonoma county
Default

I have the scorpion 4020 1100 motor in my atom now. This and the stock atom motor are very close as far as power goes. But the atom motor has a liitle more torque if you ask me. I will say that the scorpion motor is much more quiet in flight. They are both 5mm shaft so you can just switch the pinion right over.
__________________
7HV, 6HV, atom 5.5, atom 500, warp 360
Compass rep / Team Gens Ace
Prostarhobby.com / Hobbypartz.com
Ghostrider267 is offline        Reply With Quote
Old 06-13-2011, 09:58 PM   #10
Ghostrider267
Registered Users
 
Posts: 332
 

Join Date: Jun 2009
Location: sonoma county
Default

also if your want to take the time, you can get the 4025 1100 motor and change the mainshaft from a 6mm to a 5mm. it's pretty easy and they sell just the shaft too. the 4025 1100 has more power than the 4020 1100 and it's the same size so it will fit in the atom frame.
just a thought.....

Rob
__________________
7HV, 6HV, atom 5.5, atom 500, warp 360
Compass rep / Team Gens Ace
Prostarhobby.com / Hobbypartz.com
Ghostrider267 is offline        Reply With Quote
Old 06-14-2011, 07:29 PM   #11
skunkworx
Registered Users
 
Posts: 10,132
 
My HF Map location
Join Date: Jan 2007
Location: Woodbridge, VA, USA
Default

I've never found the motor to be the weak link, rather the packs. If you are seeing a lag in instantaneous power, try going with a smaller, higher C pack. The Compass motors produce nothing but INSANE amounts of power! If it's not snappy enough for you, up your pinion a tooth or two and I guarantee even the most fearless of pilots will get their heart racing with any machine powered by one these monsters. They produce tons of torque so you can load them down a lot more without bogging unlike with the Scorps (I've never had good results with Scorpion motors). Even flying in comparison with a Neu motor, the Compass motors keep neck-and-neck. Pretty tough to beat that.
__________________
Tim - Atom 500, 6HV, 3D+, eAurora
KBDD TEAM PILOT
Compass support/ProStarHobby.com
--Si vis pacem, para bellum--
skunkworx is offline        Reply With Quote
Old 06-15-2011, 12:35 PM   #12
jchen
Registered Users
 

Join Date: Dec 2010
Location: BATAM
Default

+1 Skunkworx but if you factor inn the cost of good high C batts, it might
be cheaper to buy a Pyro or go 8S
jchen is offline        Reply With Quote
Old 06-15-2011, 01:08 PM   #13
crawl
Registered Users
 
Posts: 1,558
 

Join Date: Jul 2008
Location: Maine, USA
Default

Quote:
Originally Posted by jchen View Post
+1 Skunkworx but if you factor inn the cost of good high C batts, it might
be cheaper to buy a Pyro or go 8S
low C packs won't work any better on a Scorpion/Pyro. If anything it's going to work worse as those motors are going to EAT your packs.

Likewise with 8s if you continue to use low C packs you are just going to add weight and gain very little power. It will be a wash in the end but your machine will fly heavier.
__________________
Chris D.
crawl is offline        Reply With Quote
Old 06-15-2011, 07:08 PM   #14
skunkworx
Registered Users
 
Posts: 10,132
 
My HF Map location
Join Date: Jan 2007
Location: Woodbridge, VA, USA
Default

Quote:
Originally Posted by jchen View Post
+1 Skunkworx but if you factor inn the cost of good high C batts, it might
be cheaper to buy a Pyro or go 8S
The higher the cell count you go, the less C you need to back it up. Running at the same power level, 8S VS 12S you will pull about 25% less amps in the same maneuver. If you did all the math, you could easily get away with doing only 25C packs and have equivalent or better power than 30C to 50C packs on 6S and 8S. If you wanted totally insane power, you could go high C on HV and it would fly a lot more like the 6HV.
__________________
Tim - Atom 500, 6HV, 3D+, eAurora
KBDD TEAM PILOT
Compass support/ProStarHobby.com
--Si vis pacem, para bellum--
skunkworx is offline        Reply With Quote
Old 06-15-2011, 08:40 PM   #15
jchen
Registered Users
 

Join Date: Dec 2010
Location: BATAM
Default

Hi Skunkworx,

Totally agree with you.
jchen is offline        Reply With Quote
Old 08-12-2011, 03:34 PM   #16
Ivamos
Registered Users
 

Join Date: Aug 2010
Location: Poland
Default

Hi guys!
I accept, that the Compass motor is powerfull, but the quality of used materials is not really good.
I killed two Motors in normal use. A lot of power means high forces on the shaft. But this shaft is not hard enough and its in only two relativelly small bearings.
Just see how it looks under the top bearing. Even the small imbuss screw in Pinion did make visible trace on it. Shaft on my new (1050kV) Motor looks now exactly the some as a shaft in "old" 1070kV Motor. Both are no more usable, and there ist no options to change only the shafts. Bearings are still top!
I do not want to buy a new motor every half year - even if its powerfull and relativelly cheap.
So i use Scorpion HK4025-1100 now. Overall quality is uncomparable better as in this "new one" Compass Motor. Mikado in Germany sell it with 5mm Shaft End for 89 Euro including VAT.
Attached Thumbnails
Click image for larger version

Name:	a.jpg
Views:	655
Size:	150.8 KB
ID:	245962  
Ivamos is offline        Reply With Quote
Old 08-12-2011, 09:32 PM   #17
sly the dogman
Registered Users
 
Posts: 2,482
 

Join Date: May 2009
Location: Across the river from Montreal
Default

Simple question ?

Isn't the HK4025-100 for the 600
and the HK3026-1400 for the 500.

For a 5.5 which is more suitable,
just curious.
__________________
We do accept FB parts for Compass 5.5
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
sly the dogman is offline        Reply With Quote
Old 08-13-2011, 08:21 AM   #18
Ivamos
Registered Users
 

Join Date: Aug 2010
Location: Poland
Default

We are flying Atoms - not Trexx.
4025 fits and performs very well. I did try a very expensive Hacker A40 10L Turbine - but this has terrible sound and runs very hot. Not the deal for me.
Attached Thumbnails
Click image for larger version

Name:	2011-08-06 17.19.42.jpg
Views:	125
Size:	97.8 KB
ID:	246095   Click image for larger version

Name:	2011-08-12 13.47.02.jpg
Views:	145
Size:	69.4 KB
ID:	246096   Click image for larger version

Name:	2011-08-12 14.39.03.jpg
Views:	216
Size:	95.4 KB
ID:	246097  
Ivamos is offline        Reply With Quote
Old 08-13-2011, 08:47 AM   #19
crawl
Registered Users
 
Posts: 1,558
 

Join Date: Jul 2008
Location: Maine, USA
Default

Quote:
Originally Posted by Ivamos View Post
We are flying Atoms - not Trexx.
4025 fits and performs very well. I did try a very expensive Hacker A40 10L Turbine - but this has terrible sound and runs very hot. Not the deal for me.
I have to admit that is sexy looking haha.

How is the power on the 1100kv Scorpion Vs the stock Atom motor?

How about heat (battery/motor)?

Flight time?

What ESC are you running? I see the 4025 is rated for 100a continuous, most are running ~60-70a ESC's with this heli.

If anything I would think the new scorpion motor made for the 400SE would be ideal replacement. Weighs 121g less but still rated for 1900w (vs 2200w for the 4025).

http://www.readyheli.com/MIK4465-Sco...E_p_38416.html
__________________
Chris D.
crawl is offline        Reply With Quote
Old 08-13-2011, 03:04 PM   #20
sly the dogman
Registered Users
 
Posts: 2,482
 

Join Date: May 2009
Location: Across the river from Montreal
Default

I do not want to get a Scorpion for my 5.5,
it was just "a simple question"
__________________
We do accept FB parts for Compass 5.5
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
sly the dogman is offline        Reply With Quote
Reply




Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Compass Model Helicopters > Atom 500


Atom 500 Compass Atom 500 Model Helicopter Discussion

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Copyright © 2004-2011 - William James - Helifreak.com