View Full Version : I let the magic smoke out
stanmondz
11-17-2006, 09:26 PM
hey all i burnt my manual speed controler up. can i use this controler in my eletric rustler? its a traxxas XL-1 ESC. will ihave to change anything else to run it? thanks stan
speed control im looking at http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=018&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=280039672255&rd=1,1
evst 360
11-17-2006, 09:35 PM
You should be able to drop the xl-1 into your rustler with no changes. Just make sure your motor is 17 turns or more. btw, how did you fry your msc?
sportmaxx91
11-17-2006, 10:31 PM
THe XL-1 is stock in the rustler is it not? I know the pede had 2 versions, the one with the MSC and the ESC. Yes that will work fine as long as you have a 17turn motor or up. If ur running the stock stinger motor which is 20 turn u will be fine
cooleocool
11-17-2006, 10:53 PM
There was a MSC version too, just like the Stampede.
stanmondz
11-17-2006, 10:58 PM
i dont know what happened to it ,it started running funny and stopped. went to get it and had a burning smell, pulled the body and smoke was coming out the top of the controler as far as i know its the stock motor. what would cause this to burn up?
awnelson
11-17-2006, 11:13 PM
The stock motor for starters. If you have put a lot of time into that motor, it most likely wore out the cheap brushes. Spend another $20 on a motor while you have the speed control in working order. Also, check to make sure that the vehicle rolls freely when you push it with your hand. If there is any binding in the tranny, it will cause more resistance against the motor and cause the wires to the speed control to see too much current and heat. I am not sure about the stock MSC version's motor having the correct capacitors. You will need those to allow the ESC to use reverse correctly.
stanmondz
11-17-2006, 11:27 PM
im looking at a fireball 19T double wound motor to. i put in a new spur gear today, could the pinion gear and spur be to tight? the speed control is shot its melted togather. it seemed to roll fine after changing the gear. i dont know how much is on the motor i got the truck used, the sticker is worn off i assume its the motor it came with
awnelson
11-17-2006, 11:52 PM
It is possible that even if the gears weren't too tight, you could still be having problems if you somehow got a pebble jammed into the gear. It would still make it through if you were going fast but as you slow down it would bind and not roll. If you set the new gear mesh correctly, you would have put a strip of paper between the pinion and spur, rolled them back and forth until it worked it's way between the gears while the motor was able to move in it's slot and then pushed the motor firmly and tightened both screws up. After removing the paper, you should be left with the proper clearance between the gears. As far as testing your old motor, remove the pinion, secure the can of the motor, cut the wires at the already burnt up speed control, strip them 1/2" and insert them into your battery. If the motor turns, try switching the wires. If it still turns without making terrible noises either way, the motor would still be fine. I would lean towards a better motor if you are going to do any purchasing and can afford it. You will also have to regear if you are changing from the stock motor to any lesser turns because they will ultimately have more RPM's and horsepower so read the manual for suggested gearing.
stanmondz
11-18-2006, 12:37 AM
the motor sound fine the guy at my local hobbyshop said to push the motor a tight as i could to the spur. it had a lot of wine to it so iback off just a little i got the MSC apart in my lap it looks like on of the brushes melted into the plastic between the the copper plates. forgot to add it will start to smoke a few second after i plug up the battery
stanmondz
11-18-2006, 12:42 AM
http://i38.photobucket.com/albums/e113/stanmondz/DSC01964.jpg
stanmondz
11-18-2006, 01:50 AM
ok i cleaned it up alittle and got the truck running no smoke. i set the gears with a peice of paper so it sounds better now to. do i need to oil any parts or gears ? also the ESC will give me better control over the truck right? thanks stan
evst 360
11-18-2006, 02:07 AM
yes, the esc will give you much better control of the truck. You will not need to oil any parts, except for the motor.
stanmondz
11-18-2006, 02:18 AM
where do i put the oil?
evst 360
11-18-2006, 02:25 AM
On the bushings or bearings. Whichever the motor has.
cooleocool
11-18-2006, 09:54 AM
my local hobbyshop said to push the motor a tight as i could to the spur.If I were you, I'd go to that hobby shop and tell them how to do it correctly. That, incorrect, information will lead to a lot of fried electronics.
stanmondz
11-18-2006, 01:40 PM
thry say they have been there for 17 years. so i didnt question the guys advice. but the paper method sounds sooooo much better running thanks guys damn THE HOBBY STORE, any Q's will be asked here rock on R/C zone
z-man280
11-18-2006, 02:08 PM
Hey stan,
the guys at the hobby shop you went to need to learn a few more things. Setting gear mesh with paper is a great way, and the general rule of thumb. The xl-1 has been the standard ESC in the rustler/stamped since they came out in 94. As far as the fireball is concerned, i personally have had one of the fireballs, and was not happy with its performance. The Orion method R is in my opinion, a much better motor.
As far as rolling resistance, with the motor backed off the spur gear, your rustler should roll the same as any other "push toy"...rolling with almost no effort.
Proper gearing is also a key element in making your truck run well. On your rustler, if you are using the stock 18/84 gearing, you should not have a heat issue. When you upgrade your motor, remember to either go down 1 or 2 teeth on your pinion, or increase your spur to the next one, which is an 87 on that model. Think of this as you would a full size 4x4. When you buy a new car or truck, it comes with the tires, engine, and transmission that best work with each other. Now, you put a engine that peaks its hp at 2,000 rpm's higher. To get that engine in its proper rpm range, you must............gear it down to pull a higher rpm. If you put 35's on it, same thing, your goal is to put it back in its proper rpm range.
That being said, if a lower turn motor subsuquently turns more rpm's, you want to gear it to reach those rpm's. High turn motors operate at lower, so of course, you can gear back "up" to get it back in ITS range.
Your ESC wil lgive you much better throttle response over a mechanical, and will give you full control, even after the battery "dumps",..thus no run-away!
Remember, we are here to help you, and there are no stupid questions. All of us were new at one point, and we welcome more to our hobby, and our "family" here.
Ron
calyakker
11-19-2006, 01:40 AM
I can't even believe your lhs told you to set the gear mesh that way. It's pretty common knowlege that you don't want it tight, especially a hobby store.
stanmondz
11-19-2006, 10:49 AM
thats like a ring and pinion in a car. to tight they wear fast, to lose the break teeth
z-man280
11-19-2006, 11:29 AM
BINGO!!!!
See? all we have to do is find what you are familiar with, and we can adapt rc terms to that! Let us know if ya get stuck anywhere.
Ron
calyakker
11-19-2006, 02:08 PM
thats like a ring and pinion in a car. to tight they wear fast, to lose the break teeth
Very true. I can do the spur and pinion mesh but tried doing the actual ring and pinion once. :eek: I installed a locker in my jeep and I just couldn't get it right and had to call in the troops to help me.
stanmondz
11-19-2006, 05:00 PM
ESC on the way also two more 3300Mah batteries on the ring and pinion i did my fairlane i got the mesh right but nicked the pinion seal and had to pull the yoke and change the seal .it didnt leak bad but i didnt want water and grit in my new gears
stanmondz
11-22-2006, 10:19 PM
XL-1 is in. i havent timed it but the run time seems a little longer
awnelson
11-23-2006, 09:23 AM
The MSC is inefficient when it comes to putting power to the motor; it uses a resistor to burn off the excess power when you are in the lower two gears.
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