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Christmas 2014
From: Chris (CHRISSS)
27 Dec 2014 21:50
To: fixrman
53 of 71
41329.53
In reply to
41329.49
I tried soldering a cable through an unused point on an old PSU. Terrible first job but managed to get a decent soldered joint the second time.
The EEVblog tutorial I watched said not to bother with pointy tips as they don't transfer the heat unless you lay it flat on the PCB.
Attachments:
IMG_20141227_204145~01.jpg
From: fixrman
27 Dec 2014 23:12
To: Chris (CHRISSS)
54 of 71
41329.54
In reply to
41329.53
Pointy tips cab be tough and also one must keep the iron clean and well tinned.
Try to make a cone out of the solder mound.
EDITED: 27 Dec 2014 23:13 by FIXRMAN
From: Chris (CHRISSS)
28 Dec 2014 10:34
To: fixrman
55 of 71
41329.55
In reply to
41329.54
I think I may be getting the hang of it now. Definitely much easier with this soldering station than other irons I've used. Nice to know it's up to temp.
I managed to desolder a connection, suck it up with solder wick and resolder it. I've got some other tips for it on the way which I'm hoping will be easier than the pointy one.
Need to find out about cleaning/tinning it too. The stand has a sponge in it to wipe the tip on.
From: koswix
28 Dec 2014 11:26
To: Chris (CHRISSS)
56 of 71
41329.56
In reply to
41329.55
>>The stand has a sponge in it to wipe the tip on.
John?
From: Chris (CHRISSS)
28 Dec 2014 11:48
To: koswix
57 of 71
41329.57
In reply to
41329.56
Well that's definitely a YJ.
From: fixrman
28 Dec 2014 14:59
To: Chris (CHRISSS)
58 of 71
41329.58
In reply to
41329.55
Quote:
The stand has a sponge in it to wipe the tip on.
Said the vicar to the acolyte.
From: Chris (CHRISSS)
28 Dec 2014 16:18
To: fixrman
59 of 71
41329.59
In reply to
41329.58
How's this looking? I think the problem I used to have was only trying very tip of the iron which just doesn't seem to heat up enough.
Attachments:
IMG_20141228_151641~01.jpg
From: Chris (CHRISSS)
28 Dec 2014 21:45
To: ALL
60 of 71
41329.60
Finished project. Mostly happy with the soldering apart from one or two where the contact point isn't fully covered in solder. And the motor mounts, struggled to get them to solder and don't like the way it's held in place.
Unfortunately one of the motors doesn't work so it just goes round in circles. Not sure it too much heat from the iron damaged the motor but I can see the brushes on the motor are in the wrong place and can't move them
:(
Attachments:
IMG_20141228_204140~01.jpg
IMG_20141228_204156~01.jpg
From: fixrman
29 Dec 2014 01:49
To: Chris (CHRISSS)
61 of 71
41329.61
In reply to
41329.59
Perfect! Solder still looks liquid, indicative of a good joint. A dry-looking, grainy joint is a cold solder joint and will fail, shiny and wet-looking = success! Excellent!
From: fixrman
29 Dec 2014 01:53
To: Chris (CHRISSS)
62 of 71
41329.62
In reply to
41329.60
The motors are hard to solder in place because the motor housing is heavier gauge metal. Heat the housing first so solder will melt on it, then place it next to the mount surface and heat them together, adding solder to the light side. Should do the trick.
Is there a way to reverse the polarity to that DC motor? I doubt the heat hurt the motor, it may be just defective. Did you test it first?