Built in encoder on GBM6208 150T. Is it real?

dani0512

Hi guys,

I'm totally new to brushless gimbal so i need some advice. I want to built handheld brushless gimbal for my canon 7D + 17-40 lens and I decide to use GBM6208 150Tmotor with encoder.

I found a seller that guarantee that the 6208 motor he sell have built in encoder
http://www.aliexpress.com/item/iPower-Motor-Gimbal-Brushless-Motor-GBM6208-150T-Hollow-Shaft-with-Encoder-for-DSLR-5D-Brushless-Gimbal/32712714296.html

Is it true that there is 6208 motor with built in encoder?

I'm little bit confuse and doubt it, because i found other link that sell 6208 but with external encoder, like this one
http://www.aliexpress.com/item/iPower-GBM5208hH-200T-bruless-gimbal-motor-with-Magnetic-encoder-for-alexmos-basecam-electronics-gimbal-controller/32601885396.html?spm=2114.01010208.3.2.gEqSBV&ws_ab_test=searchweb201556_7,searchweb201602_1_10057_10056_10037_10055_301_10059_10033_10058_10032_10017_106_105_104_10060_103_10061_102_10062_413,searchweb201603_3&btsid=e6184383-814a-49ca-b182-9fd66a26203f

need some advice, thanks

Garug

If the first one has encoders, he should update the pictures, the pictures do not show encoder.

norik

From second seller I bought few motors with encoders.

dani0512

@garug, do you have any recommendation where i can buy bgm6208 with built in encoder?

@norik, do you satisfied with motor? is there any issue with the quality?

AOPEN3434

HERE IS AN EXAMPLE OF VERSION 2 ENCODER MOTOR http://brushlessgimbal.ca/images/pM4108-2.PNG

davidkraus13

Hi,
this is first picture where I see encoder and slip-ring used together, Have someone some experience with it?

AOPEN3434

people have been using this solution in DYI projects for a while now (i-flight hollow shaft BGC motors) & have asking for commercial solution to solve the magnet issue! this is the first commercial available !

davidkraus13

have you some webpage where is some details about this solution? Im not able to found anything where someone using slip-rings and encoders at same time.

another solution I found is use this sensor, which can be mounted at off-axis position
http://ams.com/eng/Products/Magnetic-Position-Sensors/Linear-Position/AS5311
and ring magnet
http://ams.com/eng/Products/Magnetic-Position-Sensors/Magnets/AS5000-MR12-72

Sensor has PWM output so it can work with alexmos, or not?
in this solution I can have slip-ring(wire thru axis) and encoder(offaxis) at same-time.

If I look at picture of PM4108 there is slot cuted in magnet, if wires going thru that slot so slip-ring is useless because wire start turning around magnet if I need 360+ free for axis. OR Im wrong?
thaks

AOPEN3434

here is what your looking for
http://mymobilemms.com/OFFTHEGRIDWATER.CA/BRUSHLESS-GIMBALS/Gimbal-Brushless-Motor/BGC-Encoder-Motor-PM5208-AS5048A-Encoder-Built-Inside

davidkraus13

yees thid is it, thaks

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