Failsafe for bang-bang motor controller

[Laser]

I have a bang-bang controller for my lifter and in the FRA failsafe check it didn't do well and would rip the motor out of the motor mount. The reciver doesnt have a built in failsafe so how could I build one?

[harry hills]

you can buy them from sussex model centre

[leorcc]

Can't you put an external failsafe on that channel?

[widow_twanky]

never tried this but this probably works

http://www.teambigbro.co.uk/failsafe.html

It probably just drops the signal though

For a bang bang controller you would want a programmable fail safe which would drive the channel to a pre-set position

[team_orr]

I seem to remember we used some external orange failsafes in mythras, i think they were called FWS or something? (minds a bit rusty) Mythras was basicly bang bang but with wheelchair motors, so i think it should be suitable. i think its just plug and play so shouldnt be too bad

[blazerbotics]

You want one of these http://cgi.ebay.co.uk/GWS-FailSafe-Unit ... 2c5ac4e3fc

[team_orr]

Yeah thats the one

[Laser]

I may buy the failsafe on ebay, or I could try and build the team big brother failsafe.

[psycho_fling]

ive got one of those failsafes Alan linked too, used but think it will work

pm me if interested

alex

[Laser]

For the homemade falsafe I would need a Y-lead to beable to put it on the same channel as the servo.