Team Associated RC8Be Thread
#3722
Info on track is here:
http://b-treman-rc.valp.net/btrchome.htm
If your in the area it is always open for practice and it is free.
There is another one opening in Mossey Head.
Last edited by jwmustang; 03-01-2011 at 05:29 AM.
#3723


This is the way i soldered my battery, and motor connectors to my speed controller on my Associated Tc5 and Tc6. I will do the same on my RX8 when it arrives. They are 3.5mm female plugs and i sat the outside ones in the grooves on the posts, and the middle one centered. This gives good clearance between all three posts. The advantage of mounting the wires like this apart from looking neat, is two fold. It makes changing motors a breeze without having to re soldier, and secondly it increases the surface area on the posts for the heat to disapate. To solder, just turn the speed controller upside down heat the connector and let the solder flow into the bottom of the female plug and surround the post and fill the groove.
The only observation I have is that I wonder if the additional weight of the bullet connector pieces (both on the wire post and on the wire) adds a significant amount of stress onto the wire post where it's mounted on the ESC board. I would assume not, since you (I assume) haven't had any issues with the way you've done this on your RS Pro, but the wire posts on the RX8 are much taller and might have more leverage on the board. Just a thought.
#3724
Tech Master
iTrader: (25)
Joined: Apr 2009
Posts: 1,775
From: Orlando / Maitland, FL
God am i addicted or what. I woke up this morning and figured I could bike from work to the lhs this afternoon to pick up some wire and the castle creation bullets. Got up, plugged in the soldering station and removed the wires. I then took the motor out, put it in my backpack and biked to work....
See i didnt ruin the motor
See i didnt ruin the motor

#3725
Tech Master
iTrader: (25)
Joined: Apr 2009
Posts: 1,775
From: Orlando / Maitland, FL
It most likely is, as all of it is OFC wire with a high strand count. The only thing I don't like about much of the aftermarket speaker wire offerings is that it uses such thick insulation. The Dean's stuff (and there are other brands just as good, like the stock Tekin stuff) is very flexible and the insulation is rather thin. I've been spoiled by Tefzel wire that I use in my race car. Super thin insulation. It makes the wiring very tidy and light. I suppose I've just gotten to the point where I dislike wiring with super thick insulation. 
Good deal. Nice to see offers like this. Have any 1900kV or 1700kV Tekin motors just laying around?
Please post pictures when you do this. I'd be very interested in seeing them. It would be ideal to have large bullet connectors on the RX8, IMO. Just so I'm understanding you correctly, you're filling the bullet connector with solder, like you normally would when soldering wire to the bullet connector. However instead of inserting wire, you just turn the ESC upside down and insert the wire post. Seems logical, and a very good idea.
The only observation I have is that I wonder if the additional weight of the bullet connector pieces (both on the wire post and on the wire) adds a significant amount of stress onto the wire post where it's mounted on the ESC board. I would assume not, since you (I assume) haven't had any issues with the way you've done this on your RS Pro, but the wire posts on the RX8 are much taller and might have more leverage on the board. Just a thought.

Good deal. Nice to see offers like this. Have any 1900kV or 1700kV Tekin motors just laying around?

Please post pictures when you do this. I'd be very interested in seeing them. It would be ideal to have large bullet connectors on the RX8, IMO. Just so I'm understanding you correctly, you're filling the bullet connector with solder, like you normally would when soldering wire to the bullet connector. However instead of inserting wire, you just turn the ESC upside down and insert the wire post. Seems logical, and a very good idea.
The only observation I have is that I wonder if the additional weight of the bullet connector pieces (both on the wire post and on the wire) adds a significant amount of stress onto the wire post where it's mounted on the ESC board. I would assume not, since you (I assume) haven't had any issues with the way you've done this on your RS Pro, but the wire posts on the RX8 are much taller and might have more leverage on the board. Just a thought.
#3729
God am i addicted or what. I woke up this morning and figured I could bike from work to the lhs this afternoon to pick up some wire and the castle creation bullets. Got up, plugged in the soldering station and removed the wires. I then took the motor out, put it in my backpack and biked to work....
See i didnt ruin the motor

See i didnt ruin the motor


Sorry guys, I'm pretty guilty of this. Is it bothering everyone else? If so, I'll certainly rein it in.
#3730
Tech Master
iTrader: (12)
Joined: May 2007
Posts: 1,104
From: Texas
That wire is not made to sustain the currents that these electronics deliver.
Get the 12G silicone wire as that is what it is made for.
It is also a good idea to put new wire on after prolonged use.
#3734
Now, if 12 ga speaker wire is smaller than 12 ga RC wire (which it shouldn't be, as the gauge should be standardized across all manufacturers), then I'd agree with idea that 12 gauge speaker wire will not handle as much current.
Another thing to keep in mind is that speaker wire manufacturers might spec a lower current due to the lenth that is being assumed. If you look up some standard wire gauge specs, you'll see that for a 12 gauge wire, max current is usually spec'ed at 40-45A. We run a LOT more than that, but the wire is so short that it doesn't make much of a difference.
IIRC, conventional wisdom is that you want no more than 2% voltage drop over the length of the conductor when calculating max current capacity. For efficient systems, you can try for 0.5% to 1% voltage drop.
Even with 12 gauge wire at 120A for a wire that's only 3" long, with a 4S battery, the voltage drop is only 0.32%. It's even better with 6S at only 0.21%. 10 gauge is better at 0.20% and 0.13%, respectively.
#3735



