Cyma 030 aep

xsnipes · February 13th, 2008, 03:36

I bought the CYMA .030 aep Glock for a few bucks and I wouldn't say I would use it on the field its really just good for shooting in and around the house. I was thinking of making an external battery. The stock battery is 500 mAh 7.2v. If a pieced together 7 nimh AA's will the motor burn out in a big hurry? The output would be 7.2 volts and 2500 mAh with that setup. I don't think ill see parts for this gun.

super_six_four · February 13th, 2008, 03:39

how much did you pay for it? and do you have any pics

xsnipes · February 13th, 2008, 03:57

just internet pictures, when Im around a camera Ill get some pictures, maybe a video. If there is a thread explaining about batteries can someone direct me to it? This is a clone of the TM glock 18c aep, a more practical aep with a metal gearbox, unlikely that people don't know this though.

hattrick · February 13th, 2008, 04:20

http://www.airsoftcanada.com/showthread.php?t=52000

Your welcome.

ILLusion · February 13th, 2008, 15:06

Actually, 7 NiMH pieced together would be 8.4 volts... not 7.2v.

Depending on the quality of the motor, that much extra voltage may or may not burn out the motor, but I think the bigger concern is the longevity of the gears and the piston at that rate of fire.

Styrak · February 13th, 2008, 15:15

So you could put together *6* cells.

xsnipes · February 13th, 2008, 19:41

from what I have seen, I would guess that the motor would be poor quality, haven't opened up the mech-box yet, but I can tell the motor is similar to what is used in mini's and would not be hard to find a replacement. Would the drive gear be wedged on?

Quote:

8.4 volts

my mistake

Azriel_Strife · February 13th, 2008, 23:57

So long as your voltage is 7.2 it doesn't make a lick of difference how many MA your battery makes, all that is is the size of it's stored energy. IE: a 1000ma battery will last 2x longer than a stock one.

If it's a cheap motor like is found in cheap toy cars, then the drive gear is probably just pressed on, most of those cheap motors dont even have a wedge on them, they are just press fitted and tight.

xsnipes · February 15th, 2008, 18:03

Thanks strife, I hear in some places Higher mAh but with same voltage will spin the motor faster, I trust you though. btw thats a killer picture

Naglfar · February 15th, 2008, 18:21

The motor in that pistol will not be current limited by the shittyness of the stock battery if you put in a good one. You won't necessarily see it wear out much faster but you will notice a massive ROF increase, even with the same voltage due to the larger amount of current a good battery can put out.

Scientific explanation:
Current is charge per second, charge exerts a coulomb force on the commutator of the motor. Increasing the amount of charge on the brushes (i.e. higher current) will cause the motor to spin faster. An increase in voltage will, on the other hand, increase the force of the charges, meaning you get more torque. This is why a higher voltage can pull a bigger spring, and why putting more current through the motor will make it turn faster.
A good battery has less internal resistance than a shitty one, simply put. Though I do not know much about the chemical properties inside the battery that contribute to it storing more charge or having a higher current rating. I do know about what is happening inside your circuit.

mike909 · February 15th, 2008, 21:21

I would never, ever buy a CYMA. EVER!!!!!!

The Saint · February 15th, 2008, 23:57

Quote:

Originally Posted by xsnipes

Thanks strife, I hear in some places Higher mAh but with same voltage will spin the motor faster, I trust you though.

You shouldn't, higher mAh can result in higher ROF. It's not always a given with batteries in general, but with the chemistry types of the ones we use for airsoft, discharge rate (all else being equal) is related to mAh. In the opposite direction, if you go below a certain mAh, you'll have problems getting your motor to turn over.

xsnipes · February 16th, 2008, 17:59

heat Is the enemy of all motors of any kind, All I want to do with this gun is to make it last longer I don't really want it to shoot much faster (I'm out of rounds in my 100 round clip pretty quick). I can get maybe 400 rounds through this gun before it starts slowing down. The range on this gun is terrible, it comparable to my friends gas gun.

Mooseburrito10 · February 19th, 2008, 16:11

Quote:

Originally Posted by mike909

I would never, ever buy a CYMA. EVER!!!!!!

Their quality has improved markedly as of late. I cannot speak directly on their AEG offerings, but their G18 is an excellent piece. I compared it side by side with the Marui G18 AEP a few months ago, and their performance was almost identical. The Marui delivered a few extra feet of effective range, but a new hop bucking and rubber in the CYMA should bring it right up to the Marui level.

I would actually recommend it over the Marui due to the piddling price.

As to the original post, the ROF is quite ample with the stock battery, and the compactness of the gun with the internal battery far outweighs the benefits of using a larger battery. As a secondary, it is damn near perfect as it is.

hattrick · February 19th, 2008, 16:16

acording to uziguy of these boards, the cyma has a lower ROF than the marui.

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February 13th, 2008, 03:36	#1
xsnipes Trader rating Join Date: Jan 2008	Cyma 030 aep I bought the CYMA .030 aep Glock for a few bucks and I wouldn't say I would use it on the field its really just good for shooting in and around the house. I was thinking of making an external battery. The stock battery is 500 mAh 7.2v. If a pieced together 7 nimh AA's will the motor burn out in a big hurry? The output would be 7.2 volts and 2500 mAh with that setup. I don't think ill see parts for this gun.

February 13th, 2008, 15:06	#5
ILLusion GBB Whisperer Trader rating Join Date: Jun 2002 Location: Toronto	Actually, 7 NiMH pieced together would be 8.4 volts... not 7.2v. Depending on the quality of the motor, that much extra voltage may or may not burn out the motor, but I think the bigger concern is the longevity of the gears and the piston at that rate of fire. __________________ *Advanced Airsoft Armaments and Enhancements* Quick to the gun, sure of your grip. Quick to the threat, sure of your shot. Diligentia, Vis, Celeritas Accuracy, Power, Speed

February 13th, 2008, 15:15	#6
Styrak Trader rating Join Date: Jan 2007 Location: Saskatoon, SK	So you could put together 6 cells. __________________ Airsoft Sales and Repair/Upgrade Services

February 13th, 2008, 03:39	#2
super_six_four Trader rating Join Date: Sep 2007 Location: Calgary, Alberta	how much did you pay for it? and do you have any pics

February 13th, 2008, 03:57	#3
xsnipes Trader rating Join Date: Jan 2008	just internet pictures, when Im around a camera Ill get some pictures, maybe a video. If there is a thread explaining about batteries can someone direct me to it? This is a clone of the TM glock 18c aep, a more practical aep with a metal gearbox, unlikely that people don't know this though.

February 13th, 2008, 23:57	#8
Azriel_Strife Trader rating Join Date: Oct 2007 Location: Chilliwack B.C.	So long as your voltage is 7.2 it doesn't make a lick of difference how many MA your battery makes, all that is is the size of it's stored energy. IE: a 1000ma battery will last 2x longer than a stock one. If it's a cheap motor like is found in cheap toy cars, then the drive gear is probably just pressed on, most of those cheap motors dont even have a wedge on them, they are just press fitted and tight. __________________

February 15th, 2008, 18:03	#9
xsnipes Trader rating Join Date: Jan 2008	Thanks strife, I hear in some places Higher mAh but with same voltage will spin the motor faster, I trust you though. btw thats a killer picture

February 15th, 2008, 18:21	#10
Naglfar Trader rating Join Date: May 2007 Location: Ottawa	The motor in that pistol will not be current limited by the shittyness of the stock battery if you put in a good one. You won't necessarily see it wear out much faster but you will notice a massive ROF increase, even with the same voltage due to the larger amount of current a good battery can put out. Scientific explanation: Current is charge per second, charge exerts a coulomb force on the commutator of the motor. Increasing the amount of charge on the brushes (i.e. higher current) will cause the motor to spin faster. An increase in voltage will, on the other hand, increase the force of the charges, meaning you get more torque. This is why a higher voltage can pull a bigger spring, and why putting more current through the motor will make it turn faster. A good battery has less internal resistance than a shitty one, simply put. Though I do not know much about the chemical properties inside the battery that contribute to it storing more charge or having a higher current rating. I do know about what is happening inside your circuit. Last edited by Naglfar; February 15th, 2008 at 18:27..

February 15th, 2008, 21:21	#11
mike909 Banned Trader rating Join Date: Jul 2007 Location: Ontario, Hamilton area	I would never, ever buy a CYMA. EVER!!!!!!

February 16th, 2008, 17:59	#13
xsnipes Trader rating Join Date: Jan 2008	heat Is the enemy of all motors of any kind, All I want to do with this gun is to make it last longer I don't really want it to shoot much faster (I'm out of rounds in my 100 round clip pretty quick). I can get maybe 400 rounds through this gun before it starts slowing down. The range on this gun is terrible, it comparable to my friends gas gun.

Cyma 030 aep

Airsoft Guns Discussion