chobin

iTrader: (1)

Hi there,
I have a question for you.

I would like to change the wiring of my ESC (LRP sxx ver 2) with 3 black wires (I don't like the red/yellow/blue at all).

I have the LRP soldering station and a (crappy) roll of solder...

My problem is that I cannot tin the wire (12 AWG) because the solder is not able to flow though the strands of the wire.
The only result is a "cold joint" ball of solder on the external surface, leaving the internal strands untouched.

It doesn't matter the temperature of the solder, the point is I am not able to heat the core of cable enough to transfer the heat on the other side (I put the solder iron tip on a side and the solder on the other one....). Can it be a bad quality of solder??

FYI, the cables are these ... so they are in pure copper and without flux.

any help?
thank you
Chobin

klaymon

iTrader: (71)

Use flux. It helps the solder flow through the strands. You can pick it up wherever you get solder for probably $3-5. Don't get plumbing flux or solder. Get the stuff for electronics.

kcobra

iTrader: (11)

Are you pre-tinning the tip of the iron before putting it on the wire? Also, pick up some 60/40 solder from Rat Shack. It has the rosin flux already in it. Should be easy.

klaymon

iTrader: (71)

Rosin core solder is not the same as using flux. Especially on bigger wire, flux will make it a cleaner and more secure solder job. It takes 2 seconds to put a bit of flux on the end of the wire.

racer1812

iTrader: (31)

+1...can't say it enough flux flux flux flux flux...

cherokee95

iTrader: (5)

Personal preference is 63/37 solder and liquid RMA flux.

chobin

iTrader: (1)

Thanks for the tips, I will get a flux maybe today after work, I hope that will solve the issue

cheers
chobin

whitrzac

iTrader: (97)

Read....


http://www.rctech.net/forum/radio-el...ef-lesson.html

chobin

iTrader: (1)

WOW,
that's a hell of a reading!

I will go through carefully once I'll be at home >D

thanks anyway!

PS: is that thing set as a sticky?! I didn't see it in the forum (nor it appeared after some search...)...if not it should be....

Atticka

Also, spend the $5 on a good roll of electronics grade solder, makes a big difference as well.

chobin

iTrader: (1)

Just with a new roll of good solder it came out an outstanding job!
I would have never thought the solder could have such a big difference in carrying out the job...

thanks all for the help!