DIY Low cost Servo Motor

[Khalid Khattak]

Presently i am working on converting ordinary DC brushed motor to closed loop servo. I scavenged a DC motor from embroidery machine and 3d printed a low resolution encoder wheel (4-slots 16PPR quadrature mode).. Grabbed two optocoupler as a encoder sensors and purchased IBT-2 43Amp dc motor driver from Aliexpress ( around 17 US dollar + free shipping). The servo controller Arduino programming and concept is from Miguel Sanchez a very generaous guy in open source/hardware community.
https://www.youmagine.com/designs/dc-mo ... l-software

Its a PID closed loop with STEP and DIR pin as an input. I am just posting a teaser video however details of my electronics shall be shared as per demand.
[youtube]http://www.youtube.com/watch?v=xFekXLbz ... e=youtu.be[/youtube]

[Jimustanguitar]

You always have the coolest projects!
Keep us in the loop on your build, it sounds pretty cool.

[Khalid Khattak]

Wow... amazingly found the servomotors with Quadrature incremental encoder at a very bargain price of around Rs 340 /Ea( ~$3.2US).. couldn't resist to get the three from the local shop in Sadiqabad... The shopkeeper was selling these to locals who make small fans out of them.... what a waste of the motors especially the encoder electronics....
The first thing i did to identify the wiring... Posting for record...
PS: Unfortunately Three FANS will not be converted by using these motors now...

[Khalid Khattak]

You always have the coolest projects!
Keep us in the loop on your build, it sounds pretty cool.

Thanks