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Oct 27, 2019, 10:38 PM
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Turnigy Power / Thrust stand

PART 1 ( of many many parts )

At last a motor is here !
Be a budget 2204 / 2300kv 2-3s ( 12A - 120W - 14 pole )

The very first thing I wanted to check was RPM accuracy as I had seen a complaint or two about this !
Now the very first thing anyone has to understand is :
You have to input the correct pole count for your motor !!! or you will get the wrong RPM read out .
This motor is 14 pole ( advertised as ) .

Setting the test stand to 14 pole :
setting motor speed to 10,000rpm as reported by the test stand
My GT power tacho reported some 9200rpm .. ( 3 blade mode as it was a 3 blade prop )
So where is the discrepancy ? With one or the other or in between ?
I would suggest the read outs are close enough to make any data viable and usable .

The prop was not well balanced .
The test stand being metal , means quite a bit of vibration against a hard surface ( table top ) . ( yeah , balance the prop )
So this is all I have done ..
Mounted the motor , connect things up , and do a quick test run checking RPM ..
Next I will have to check that current draw reading .. ( And balance the prop )

AMPs Test :

I just checked , and the AMPs look to be good ..
So it looks like I can trust the current draw reported by the test stand ..
I threw a 4 blade on as it runs much smoother ..
So I can definitely do some RPM / Watt's / @ RPM range / Thrust - tests ....

So I guess I will have to do some thrust accuracy testing now ..

Last edited by old4570; Oct 28, 2019 at 11:30 PM.
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