robot

[Laser]

Re: robot

where about in breadfield alex?

[Bodge Job]

Re: robot

can't remember, near the caterey?

[Laser]

Re: robot

OK next time I see you I'll ask you where it is.

[daliad100]

Re: robot

http://maps.google.co.uk/maps?f=q&so...47198&t=h&z=10

The magic of the internet

[Laser]

Re: robot

I've got all the bits for the lifter (except the esc) but how would I control the motor? How would i wire it up?
My dad says that we use microswitches and make a bang-bang speed controller and at either end of the threaded rod
we have a limit switch that when the nut reaches the extent of its travel the motor cuts out to stop the motor ripping the lifter mechanism and itself apart.
We need to be able to control it so when the lifter reaches the extent of its travel the motor cut outs.

[daliad100]

Re: robot

http://homepages.which.net/~paul.hil...ingTravel.html

If you can get some double pole double throw relays (aka double pole change over) and some microswitches that will do the trick.

Technobots and Maplin both do some that should be suitable.

[harry hills]

Re: robot

technobots are cheaper i think

[billy breach]

Re: robot

what is the overall size of the bot?

from blue wheel to blue wheel, the length (including and not including the lifter)

and finally the height from the ground to the top of the bot?

[Laser]

Re: robot






width : (side to side) 470mm
length : (lifter to back) 520mm
length : (bulkhead to back) 350mm
height of chasis : 68mm
height of robot : 96mm