RE: oatley servo kit [TANKS]

[Gary Warren <gdubb2-at-cableone.net>]

I contacted Oatley last year, and here is the response I received from
them. I specifically asked about 14.4 to 18 VDC, and current capacity of
the K165B kit. I was going to use drill motors in a robot
project.

"Hi Gary:

sorry for the delay...The output H bridge in this kit uses MJE3055 and
MJE2955 power transistors...no heatsisnks are supplied...currents up to
2A should be OK but heatsinks may be necessary at greater currents...the
voltage range you mention is not a problem...."

then there was this part ??? Why would they object to resending out the
info ?? I did it anyways ... Bwaaahaaha

"PLEASE NOTE:
This email is only intended for the recipient. The content of this email
or any part of it is not for disclosure, copying or distribution to any
other party."


There is always this option
too...
http://www.pololu.com/products/pololu/0392/


Good luck
Gary




At 08:07 AM 3/9/2007, you wrote:

Thanks, Steve. That answers the current question, all right. I had planned on it being a kit and needing the feedback pot mounted. Maybe I’ll try that email address to find out about the voltage range. Or maybe I’ll just buy one and hope/assume that it will drive 24v. Doesn’t seem like such a crazy thing to expect.
 
When will we see that Staghound take the field ? I always thought that was a cool looking vehicle. Is yours larger than 1/6 scale ?
 
            - Doug
 

From: tanks-admin-at-rctankcombat.com [ mailto:tanks-admin-at-rctankcombat.com] On Behalf Of Steve Butzen
Sent: Friday, March 09, 2007 9:20 AM
To: tanks-at-rctankcombat.com
Subject: RE:oatley servo kit [TANKS]
 
     I emailed Oatley a while back  and this was there responce, I also asked if they sold this as a completed unit and they said it was not.
Hope this helps.
 
 
 
 
 
 
How does it hook up and does it truly make this large motor work like a servo ie: porportional movements, returns to center when the stick on transmitter does and so forth.  
Yes, it takes the 1-2mS pulses from your receiver and turns them into proportional movements just like a GWS, HiTec or Futaba etc. type servo would do.
 
You will need to connect (mechanicaly) a feedback potemtiometer to the output shaft of the motor, two wires to power, two wires to your motor and three wires to your receiver.
 
 
Also is there an amperage max I should be concerned with for the motor? 
That kit uses power transistors that are rated at around 10A but at that rate would require heatsinking.
 
 
If you have any further questions......
 
Regards
Graeme Matthewson
OATLEY ELECTRONICS PTY. LTD.
PO BOX 89, OATLEY, NSW 2223, AUSTRALIA
Phone: 02 9584 3563
Fax: 02 9584 3561
Int. Phone: 61 2 9584 3563
Int. Fax: 61 2 9584 3561
Web Site: http://www.oatleyelectronics.com
Email Address: graeme-at-oatleyelectronics.com