Printable View
hi everyone
Im having trouble with a certain failsafe. At Magna i only had one failsafe but then after the event proceeded to buy another. this time i got a cheaper one (See My profile for the pic) but this one doesnt do a thing and makes the robot go mental. i did think it was to do with the first failsafe, as i thought it was short circuiting on the mount plate, but its not.
What to do?:sad:
What speed controllers are you using and are you using a seperate mixer? As the FS has to be before the mixer, not between the mixer and speedo.
Hi Alan
Ive got two electronize, (1 has on it FR15HVR the other FR15HX) speed controllers and I think Im using a sepaerate mixer Ill take a pic and put it on my profile so you could check as Im not sure.
Thanks Alex
I cant see the failsafe on the pic, but theyre not between the receiver and mixer, so try them there.
Although i had a similar setup in Alpha and never required the failsafes, the ones built into the speedos always worked well enough. Try just putting a servo on the end of the failsafe to be sure that its working.
(Message edited by blazerbotics on April 08, 2006)
I think I put the fail safe in the reciever and into the mixer.
Is that how to do it?
Thanks
Receiver Failsafe Mixer Speed Controller
Previously in Conundrum I used a v-tail with some 30A electronizes which passed failsafe checks fine. But it might also be worth checking if the fail safe is calibrated properly some have either a push button or dial to adjust the failsafe.
Chris - ^_^
I use the same controllers and dont use separate failsafes, never had a problem with the robot not failsafeing. Although I use a Futaba Rx so it may be a factor, dont really know as ive never used HiTec
i have never used a failsafe on any of my robots with electrolise in them, the 15 and 30 amp microprocessor controled ones have an adequate failsafe with in there design. remember a failsafe eg fs1 in the event of loosing radio signal will output a signal to the controllers still, and assuming you are only using one failsafe, with the radio off you now have a signal from the failsafe mixing with what ever the Rx is picking up in the way of noise. so your speedos are now getting a signal good enough to not allow them to failsafe and what ever noise will let them go nuts.
try them with out the failsafe, i think youll find it works ok then. or if you must, use two.
Hi all.
My new featherweight is pretty much up and running, however it has recently stopped failsafing when the radio is turned off, which is worrying me. It now tends to accelerate both wheels at loss of radio contact and Ive no idea why. Im using a sabretooth controller and it always failsafed right up until a couple of days ago.
Any help on this would be great.
Thanks, Dave.
do you use a spektrum that should failsafe auto, i would think you may have altered the trims or something?
So ... more info
Transmitter and reciever type?
Upgraded or altered ANYTHING recently?
If its a Spectrum ...been playing with the settings it at all?
IF you have a Spektrum setup and have altered the transmitter settings..try rebinding.
(Message edited by woody on December 26, 2008)
No, Im on 40mhz. Sky Ranger 3, micro reciever. Not upgraded or altered anything, its just stopped working, literally its gone from working to not working without being touched.
well i have a solution buy a spektrum probably not what you want to hear, i dont know what else to suggest
do yuo use and other failsafes apart from the sabertooth ones?
No I dont use other failsafes. And I dont see why I need to buy a Spektrum just to solve this problem, I had the same set up, with the same components in my last featherweight and that ran and failsafed fine, and this one failsafed until 2 days ago...its just a mystery why its stopped.
yeh it is a radical solution which is not nessecary but it would solve it, have you checked the manual for your controller they usually have info on problems, or email the guys at dimension engineering???
alex
Ive checked an online manual....nothing in it...hence asking on here, lol.
OK, now one side failsafes but the other side twitches...wonder if its just picking up some rough static or something...Ill try it outside.
You might have tried it already, but it could be just simple things such as:
Loose ariel wire
Loose connectors
Charged the Transmitter/Receiver battery
Connected the right channels from the reciever
Matching crystals?
etc. etc.
The sabretooth on Ironside was on 40mhz originally and had the same problems with twitching - solved the problem by fitting a br6000 - sorry.
One other thing to bear in mind, 95% of your opponents will be on Spektrums and will not have radio suppression fitted, so your machine will be severely affected in combat.
Dave, have you got the auto calibrate on your sabretooth switched on?? If so turn it off, I have had similar problems with the 5 and 10Amp versions and this seemed to fix it.
Will
Thanks for all the help...the robot went up in smoke today, lol, so thats that problem solved kind of.
Should have it fixed up for Barnsley though...might just have to bite the bullet and get a Spektrum.