elobire's build thread

[elobire]

the motor i am using is this:
http://secure.oatleyelectronics.com//pr ... 2cefc40094

still havnt got the batteries for it yet, but im going to test it on the 2 12v batteries i bought for a similar scooter motor which i didnt use. their only cheap ones as i was short of money, so i hope to get a completely new set for the real robot.

[craig_colliass]

This is not easy to see in this picture but the lift motor (red) for Cherub HW, is controlled by two relays 24v and 2 micro
switches operated by a micro servo on the throttle channel this seems to work fine and is quite cheep to do.

[zoll]

How you allowed for shipping and import tax on that motor buying from australia? I got mine for a scotor shop in the UK, the motors are identical and much cheaper then shipping them over

[elobire]

i cant really see from the photo how it works, do you have any other photos of it?

zoll, i havnt really considered the shipping cost yet, but i think il buy it from the UK instead.

[craig_colliass]

HOPE THIS HELPS
I can draw the circuit for you at the next event if you want.

[elobire]

thanks for the photo. can you recomend a relay to use for this motor?:
http://secure.oatleyelectronics.com//pr ... 2cefc40094

[typhoon_driver]

Look at automotive relays. Something like this should do the job http://cgi.ebay.co.uk/24V-CHANGEOVER-RE ... 4150aa37d4

[RogueTwoRobots]

Hard to see if that one from eBay has a mounting point, but if not, you can get a similar thing from Technobots:

http://www.technobotsonline.com/24v-spc ... relay.html

I believe two of them would do the job. The only problem is though; these relays need 24V to activate the relay coil (which produces the switching motion). I don't know what the lowest voltage is that they'll operate at, but if you're running your robot at 12V you may need one with a 12V coil. Technobots used to stock them (they still show up on their old site) but don't seem to anymore. I'm in a similar situation as one of my speedo relays is dead in my robot and I'm out of spares so I'll see if I can find a couple of links to 12V ones.

EDIT: If you want six of them
http://cgi.ebay.co.uk/12V-40-30AMP-5-PI ... _849wt_930

[typhoon_driver]

well the motor was 24v so i assumed the machine will be run on 24v

[elobire]

found a 12v relay:
http://cgi.ebay.co.uk/12V-CHANGEOVER-RE ... 4150a9ef81

EDIT: il probably use the 24v one, as thats what the motor is designed for.