Components keep falling off !! - Page 2 - Electronic Circuits Projects Diagrams Free

mstechca · 13th November 2005, 07:56 PM

Quote:

Originally Posted by Megamox

I suppose its a good idea to bend them at different angles so you dont end up soldering one lead to another lead.

90 degrees is usually OK unless the component leads exposed on the component side of the board are touching each other.

Short leads are better, unless in very rare cases, you need a track that has extremely low resistance and inductance. That should only happen if you are making a UHF or a radio device with an extremely high frequency.

If you have fine tools, try to have the lead length to only 2mm + the width of the board, so that the chances of one lead running into the next is slim.

windozeuser · 13th November 2005, 10:41 PM

Well, yes you bend them solder them then snip them. That's how I always do it.

DigiTan · 13th November 2005, 10:56 PM

That's what I do too. Is the green tape audo referred to also called 'painters tape' in some shops?

audioguru · 13th November 2005, 11:27 PM

Yeah, the green tape is for painters 'cause its adhesive is mild and doesn't pull paint off walls.
It comes in different qualities. I have one that melts all over the place, then is way too sticky when it has cooled.

mstechca · 14th November 2005, 02:40 AM

Quote:

Originally Posted by windozeuser

Well, yes you bend them solder them then snip them. That's how I always do it.

yes, but that order isn't the best order.

You:

1. snip (cut to minimal length, but not too short)
2. insert (insert it into the PCB)
3. bend (at 90 degrees)
4. solder

EDIT: I forgot to mention that TAPE is not a recommended item for holding components, especially when heat is close to them. Tape is not designed for hot environments.

audioguru · 14th November 2005, 04:07 AM

Quote:

Originally Posted by mstechca

TAPE is not a recommended item for holding components, especially when heat is close to them. Tape is not designed for hot environments.

I don't use "duck" tape nor "electrical" tape. I use green painter's tape that works fine with my temperature-controlled soldering iron.

checkmate · 14th November 2005, 02:37 PM

I do as others do, which is soldering from the lowest profile upwards. In addition, I find a sponge quite useful in such situations.

Dr.EM · 14th November 2005, 09:20 PM

I actually use ordinary sticky tape, and I cut the leads very short before soldering. I put a lot of parts on at once, but do wires and annoying bits afterwards. Once though, the tape melted in a fine layer onto a XLR plug I was soldering, and that actually stopped it from working until I noticed it and sanded it off :lol:

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13th November 2005, 10:41 PM	(permalink)
windozeuser	Well, yes you bend them solder them then snip them. That's how I always do it.

13th November 2005, 10:56 PM	(permalink)
DigiTan	That's what I do too. Is the green tape audo referred to also called 'painters tape' in some shops? __________________ The most-hated young engineer in America. * AVR Projects * Robot War: TI * About

13th November 2005, 11:27 PM	(permalink)
audioguru	Yeah, the green tape is for painters 'cause its adhesive is mild and doesn't pull paint off walls. It comes in different qualities. I have one that melts all over the place, then is way too sticky when it has cooled. __________________ Uncle $crooge

14th November 2005, 02:37 PM	(permalink)
checkmate	I do as others do, which is soldering from the lowest profile upwards. In addition, I find a sponge quite useful in such situations.

14th November 2005, 09:20 PM	(permalink)
Dr.EM	I actually use ordinary sticky tape, and I cut the leads very short before soldering. I put a lot of parts on at once, but do wires and annoying bits afterwards. Once though, the tape melted in a fine layer onto a XLR plug I was soldering, and that actually stopped it from working until I noticed it and sanded it off :lol: __________________ Angry!? I'm absolutely electrolytic! Will have to make do with myspace now I guess...