Flashing Figured Out
I think I goofed up the speed control in my Traxxas Rustler. I was trying to
put it in Training mode, and now it just blinks red when I plug the battery
in. I’m using the included Power Cell NiMH battery.
;e cause for the blinking red LED is the speed control’s low-voltage
detection (LVD) system, which you appear to have switched o;. When
activated, LVD will alert you if your LiPo battery needs to be recharged
by slowing the car and blinking the red LED. If you continue driving and
the voltage drops further, the speed control will shut the throttle down
completely to prevent overdischarging. If you install a NiMH battery
with LVD activated, the speed control will “think” you have a LiPo pack
onboard and prematurely shut the throttle down even though you’ve
still got battery power left. So you need to turn LVD o;. But there’s a
catch—as long as the red LED is blinking, you won’t be able to make any
changes to the speed control’s settings. Do this: Disconnect the battery,
then recharge it. Once fully charged, reinstall it in the truck and switch
the speed control on. ;e pack should have enough voltage to make the
speed control “think” that it’s a LiPo and power up normally. ;e LED
will glow green, indicating LVD is activated. To deactivate it, first turn the
speed control on. Next, press and hold the EZ-Set button for about
10 seconds. ;e LED will turn o; and then display a red light, and you’ll
hear a descending musical tone (if you’ve got a VXL series brushless
speed control) or three beeps (if you’ve got an XL series brushed speed
control). Release the button. ;e LED will glow solid red to show that LVD
is o;. You can now run your NiMH pack all the way down. Just be sure to
reactivate LVD if you install a LiPo pack. Remember that red LED = NiMH
only and green LED = LiPo OK.
To switch the speed control between Sport, Race, and Training modes,
start with the speed control turned o;. Press and hold the EZ-Set button
until the LED turns solid green, then solid red, and then begins blinking
red. Release the button after you see the number of blinks for the setting
you want: one blink = Sport mode, two blinks = Race mode (no reverse),
and three blinks = Training mode (speed and power reduced by half).
The Hole Thing
I ponied up for a custom-painted body, but
now I can’t tell where I need to make the
body-post holes since the plastic isn’t clear
anymore. I’m afraid I’ll mess up the body with
misplaced holes. Any ideas?
;e most common methods for locating the
post positions on a painted body are “the
flashlight trick” and “the grease trick.” Get
the body positioned as you want it, then shine
a flashlight through the fender wells onto
each body post. Unless the paint job is totally
opaque, you should be able to see where the
post touches the plastic as the darkest spot
on the outside of the body. If that doesn’t
work, put a dab of grease on the tip of each
post, then lower the body into place. When you lift the body o;, there will
be a dot of grease on the body where you need to make the post holes—
provided you didn’t scooch the body around.
If you want to get fancy, you can try Dynamite’s EZ Body Post Marker
Set (DYN5145). ;e system mounts magnets on each post, then you
When fully charged,
a NiMH battery will “look like”
a LiPo to the speed control. But if LVD is on,
the speed control will shut down prematurely.
If the LED is green, low-voltage detection (LVD) is activated to protect LiPo packs against
overdischarging. Turn LVD o ; when using NiMH packs.
We’ll use this card to stand in for a painted
body. ;e magnets align themselves over
the posts, and a hole in each magnet’s
center allows you to poke a fine-tip
marker through the magnet to precisely
mark the post location.
install the body and put magnets on top of the shell. ;e magnets on the
body will align themselves with the magnets on the posts to show you
exactly where the post holes belong. It works great and costs less than
$20. If you’re already $80 or more into a custom-painted body, it’s a small
price to pay to make sure that you don’t trash it with a hack mounting job.
;e machined-aluminum post adapters have magnets embedded in them.
;e kit includes a variety of sleeves to reduce the adapters’ inside diameter
to fit any post size.