It is much easier to answer more specific questions from somebody who has
taken soem time try and self educate a little bit first.
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Thank you, Mr. Idiot.
I was really asking for folk's opinions here in this newsgroup. I figure
any damn fool would have the wit to check Google, as well. Even me.
However, I do appreciate your links and the time you invested. I really
thought that some of the guys on here would have some tidbit of information
about this model and a source for the tips.
Mr. Idiot: I try to call even a S.O.B."Mr S.O.B." as that monicker tends to
make the real S.O.B.s feel better about themselves since they seem to need
I always get a grin from folks who state the obvious as if they think their
idea only occured to them and no one else.
This group has an inordinate percentage of extremely knowledgeable folks and
I speculated that many would know of this spot welder. If I expected a
reply that didn't fit with your particular timetable regarding the
appropriate time to wait for a reply before asking again, I really
apologize. Perhaps, deep-breathing exercises and Yoga would be of great
benefit to you. Masturbation, even. If that is still possible for you.
Lenco is a huge company that has been around since dirt.
I think they merged with Profax.
I did find a place that can order them for me.
I have never used a spot-welder before and wanted to pick some brains.
Thanks for those links. I didn't have any particular questions other than
wanting hints and do's/don'ts/technique.
What amperange is your machine? This one is supposed to be 2400 amps.
What do you normally spot weld?
The current varies depending on the length of the tongs. I have the 12"
tongs so it looks like 5800 Amps (I have the LMSW-
52). I use mine for steel sheetmetal, usually 16 - 22 guage. I do a fair
amount of sheetmetal fabrication for hobby stuff and the spotwelder lets
me build pretty professional looking stuff. Mostly I am building
enclosures for electronics. I have used similar spotwelders on autobody
sheetmetal in the distant past. I bought this one used off Craigs List,
I kind of wish it was the smaller machine because it is easy to blow
holes in the work with this one.
A good mechanical fitup, clean metal and not too much pressure on the
tongs gives decent results with the shortest pulse I can get with the
mechanical switch. Clean tips are also important. Too much tong pressure
or dirty tongs result in blowing a hole in the work. The smaller
machines I have used are easier since they actually take 1 or 2 seconds
to reach welding temperature (Orange to yellow hot on the surface).
I want to try spotwelding stainless, but have not gotten to that yet.
Stainless steel spotwelds fine but it really likes to spit at you so
wear safety glasses.
One of my favorite clever ideas with my Miller spotwelder was how to
stud weld with it.
Buy an extra set of tips.
Cut one down so it is about 3/8" across the flat.
Take the other an drill through the middle with a 3/16" bit.
Take some short fillister head 8-32 screws and grind the head so it is
half as thick.
You want fillister head because they have a larger diameter head, but
you can also use round-head screws.
Drop the screw into the hole in the lower tip and place a piece of
sheet metal over it.
Apply spot welding current and presto you have a perfect little welded
Nice for making small light fixtures and anywhere where you don't want
Thanks for the interesting reply. The beast that I have does not have
tongs. It has an ordinary ground clamp and an electrode holder with a 3/8"
copper slug-type tip that is to be pressed against the top sheet and then,
the pushbutton fires a monster contactor (vacuum?) and sparks fly for x
mlliseconds. What fun!
Maybe we could trade?
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