Thanks for the input guys. Doug: I gradually increased the track tension to where there is little slippage, although the rolling resistance of the tracks seems high to me, but I don't have anything to compare it to. So at the current track tension, the problem manifests as mostly stalling, as Frank describes.
On Jan 5, 12:52 pm, [email protected] wrote: > Henry, when you try to trun in grass, is there slippage anywhere ? Do the > belts in the transmission slip ? Does the track slip on the drive wheel ? > > Or does is simply seem like the motors don't have enough umph to turn the > tank ? Do you know how old your battery is ? > > - Doug > > ----- Original Message ----- > From: "HV" <[email protected]> > To: "R/C Tank Combat" <[email protected]> > Sent: Wednesday, January 5, 2011 12:30:27 PM > Subject: [TANKS] Re: Help diagnosing poor performance > > 1) Gear ratio: 6:1 > 2) Drive wheel diam: 4.25 inch > 3) Speed control: Robot Solutions, 160 A (I think) > 4) Wire gauge: 10 AWG > 5) Motor age: Don't know > > And the treads are square, not beveled. > > Keep in mind, I'm not the builder of the tank, nor was the previous > owner, so I'm just finding out what its quirks are. The ESC appears to > be similar or the same as the current Robot Solutions 160 Amp product, > but I haven't yet verified if it's exactly the same. > > On Jan 5, 10:36 am, Frank Pittelli <[email protected]> wrote: > > Yes, we ran some of tanks on EVs at 12v, at heavier weights, so let's > > explore all the parameters to help diagnose the problem: > > > 1) What gear ratio are you using between the motors and drive shaft? > > > 2) What's the diameter of your friction drive wheels? > > > 3) What type of speed control, if any, are you using? > > > 4) What size wiring runs between the batteries and the motors? > > > 5) How old are the EVs? > > > Frank P. > > > On 1/5/2011 10:22 AM, HV wrote: > > > > Yeah, I'm definitely short of torque, but I had the impression that > > > others were able to run EVW's at 12V OK. Probably not the case eh? > > -- > 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 athttp://groups.google.com/group/rctankcombat > > -- 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
