I wonder if it's anything to do with powering your RC gear off your sabretooth? I run mine off the buggy pack and marine speed controller that powers my turret. Just a thought . . .
On Sep 30, 7:39 pm, neroc <[email protected]> wrote: > This is all true Pete but my Marder use`s exactly the same motors as > your Valentine also at 12v moving the same weight at about the same > speed and the Marder has experienced many a bananas moment recently, > My leopard has only recently lost the plot as far as speed control is > concerned, I believe that after a certain amount of time sabertooths > esc`s just go nuts. The marder sabertooth in particular has developed > a disliking for the elevate servo,when this servo is disconnected the > Marder operates perfectly fine ,reconnect the servo ( that has been in > the tank for about 10 battles and worked reasonably well ) and the > damm thing has a mind of its own. > Im pleased to see that T055 with its sabertooth still works perfectly > well, this may be because its amp draw is very low that its sabertooth > hasent had the zap to send it loopy yet ,who knows. > The sabertooth in the jeep ( SVo12 ) has also picked up this > frustrating erratic trait and now doesnt work for very long . > What I will say to anyone thinking of buying a sabertooth for main > drive is dont , buy something else. > > Neil R > > On Sep 30, 1:47 pm, Pete Arundel <[email protected]> wrote: > > > > > Neil is using drill motors which are 24v, 180w and about 2" in > > diameter and maybe 4" long. > > > My motors are 12v, 180w golf caddy motors with integral gearboxes. > > They're considerably bigger than Neils motors being 3" in diameter and > > about 7" long. > > > They stay quite cool and probably don't need the cooling fans that are > > installed. I am going to try them at 18v over the winter to see how it > > goes. > > > On Sep 29, 10:14 pm, [email protected] wrote: > > > > In a message dated 9/29/2010 3:02:50 P.M. Eastern Daylight Time, > > > > [email protected] writes: > > > > There is a data sheet for it avialbale > > > here;http://www.technobotsonline.com/index.php?dispatch=attachments.getfil... > > > hment_id=82 > > > > That said, I wouldn't recommend using it. Although I use a 2x25 > > > sabretooth in my own tank - and have had no problems at all - they > > > haven't been reliable when used close to their voltage and current > > > limits. Neil's Leopard has always had problems with it's sabretooth > > > overheating when used with 24v - but he uses drill motors and they are > > > quite highly stressed. Using my unstressed, 12v 180w motors has caused > > > no problems so far. I have bolted a cooling fan directly to the > > > heatsink, however. > > > > when you say unstressed motors, are they direct drive or are the geared > > > down? but i also see your runing 12 volts where he is running 24 volts (i > > > > > > wonder how it would work with 18 volts..........) > > > > Chris, > > > _Odyssey Slipways_ (http://hometown.aol.com/odysseyslipways/index.html)- > > > Hide quoted text - > > - Show quoted text - -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat
