New Post: Liquid Tape vs a Pi Camera Lead

[swindon-hackspace]

Liquid Tape vs a Pi Camera Lead

Author: Robert Longbottom

I was watching either a YouTube video or reading a blog post about soldering wires onto PCBs, possibly a quadcopter power distribution board. After soldering, the guy got out something called liquid electrical tape and gobbed some over the solder joints to reinforce them. Brilliant I thought! Why have I never head of this stuff before? I usually use the hot glue gun for things like that, but somehow this looked better and neater.

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[jmeosbn]

Nice post! Is the solvent smell super bad (like, room stinks for hours bad)?

[Robert Longbottom]

Thanks.  Yeah it is quite powerful, I can smell it for a while after because it takes a few hours to really set solid.  Though you can add the second coat after about an hour.

On 11 November 2014 17:03:32 jmeosbn <jme...@gmail.com> wrote:

Nice post! Is the solver smell super bad (like, room stinks for hours bad)?

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[jmeosbn .]

So, could not be worth the "headache"?  (sorry, couldn't resist the pun!)

Jamie Osborne

[Robert Longbottom]

<groan> :-)

Depends how much you like the smell of solvent really.  I don't mind it so it doesn't bother me.

The stuff is also quite good for making up header cables.  I.e. solder some wires onto some standard header pins then create a plastic "case" over the back to firm up the connection and prevent shorts.  An alternative to crimping.

[jmeosbn .]

Yea, i tend to get headaches, so a job for a well ventilated room!

I was thinking of your glue gun approach to make a 10pin to 6pin cable for the AVR programmer - this would definitely do a nicer job of it.

Jamie Osborne

[Robert Longbottom]

Yes, I've just an adapter for my avr programmer to the standard 6pin header since it has some silly custom 5pin header and I used the black goo for one end of that.  Its turned out okay.

[Jamie Osborne]

Did you adapt the existing adapter (!) or use jumper wires? I was thinking that double sided tape *may* hold the individual sockets well enough to apply "the goo". 

I'm probably going to buy a six pin version anyway, but it's a shame not to have an adapter and leave that one  for the Hackspace - that said, they are really cheap on Aliexpress.

Jamie

[Robert Longbottom]

Ah, no, I didn't use it for that end, but it may work.  I super glued two  3pin crimp plugs together that I'd reclaimed from some other stuff (so the pins were already crimped and I didn't have to do them).  I used the liquid tape at the other end to sure up the connection into a 5pin round header so it just works as an adapter cable (I still have some boards that I'd need to use the 5pin programmer plug with as well. ) So like this:

Also its good for when you jury rig wires into existing circuits like this:

Not my neatest work! And I havent yet confirmed if it works, but if it doesn't it will be my dodgy soldering and not down to the liquid tape :-)

[Jamie Osborne]

Looks good, and much less bulky than hot glue!

I might try trimming down a couple of those 4 way connectors (used for CD-ROM audio leads in old PCs) into 2x 3way then.

Jamie

On 11 Nov 2014, at 19:17, Robert Longbottom <Robe...@iname.com> wrote:

Ah, no, I didn't use it for that end, but it may work.  I super glued two  3pin crimp plugs together that I'd reclaimed from some other stuff (so the pins were already crimped and I didn't have to do them).  I used the liquid tape at the other end to sure up the connection into a 5pin round header so it just works as an adapter cable (I still have some boards that I'd need to use the 5pin programmer plug with as well. ) So like this:

<IMG_20141111_190824.jpg>

Also its good for when you jury rig wires into existing circuits like this:

<IMG_20141111_190852.jpg>

[Robert Longbottom]

Yes, I was thinking there might be something worth salvaging in that box of computer cables and fans in the metal cupboard at hackspace. Like an old back plate for a serial port, didn't they have 6 or 8 pin connectors on the end that went into the motherboard.

[Jamie Osborne]

Ah... I'll have to have a look. I know there's quite a few four ways in the slim orange and white box, but a 3x2 would definitely be handy.

Jamie

[Gyrobot]

At least you have a post up, I am still waiting , sob!!

[Gyrobot]

It looks very much like Plasti Dip which I have a tin of. Not at all surprising seeing as it is from the same company.

I will bring in the Plasti Dip tin later and compare.

[jmeosbn .]

Hey Steve, I haven't forgotten about you!

I had planned to finish it off later this afternoon; but have to get over to penhill now to pick up a delivery (I'm sure couriers are trained to be ninja-stealthy!), so only going to have a hour or so to squeeze it in. :(

Jamie Osborne

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[jmeosbn .]

OH, meant to say - interested in the plasti dip; does it smell "solvent-y" like Rob's?

Jamie Osborne