Hey if ya think those MOS-FETS kick ass ya ought to look at the HEX-FETS...
awesome stuff, arc welder class!
Yeah those guys up in 'Joe Town' (San Jose) sure put some good smoke in
those things, just make sure ya don't let any of it out :-)
It's quite simple. The hardest part is getting the parts absolutely
clean -- and that isn't difficult but it must be done well. Once
the part is clean, immerse in plating solution along with a tin
anode, supply it with about 10 mA per square inch for maybe half an
There are surely formulas in books for what chemicals to use, but I
just buy the stuff from Caswell. His stuff is a bit pricey, but it
works very well. They have a distributor in the UK now.
Note: I don't buy the "kits", just chemicals and anodes.
That's interesting. I checked out Caswell's website and you're right
that the solutions are a bit pricey. $12 for 8 oz. I'm guessing that's
going to be £12 for 8 oz here in the UK. I might just stick with
de-rusting for the moment. I definitely have a lot more use for it,
although the tin plating looks cool. I should have my de-rusting power
supply up and running soon. I'll post some pictures when I do.
By the way, what is that "wand bandage" shown on Caswell's website for?
That's for "brush plating". You wrap a bandage around a piece of
anode metal, as tin if you're plating tin, then soak the bandage in
the electrolyte, connect the power supply to the work and the anode,
and "brush" on the plating with the resulting "wand". At least
one of the brush plating solutions (gold) relies on metal already in
the solution so the anode can be stainless or something.
I have a lot of advantages over practicing engineers: *no schedule
*no beancounters wanting me to shave another penny
*no concerns about producability
*no marketing guys telling me there's no market (I don't care)
*the machinist, welder and elex tech all work for free and don't
argue with me or bitch at me
*no boss wanting more faster cheaper
*no meetings or vugraphs -- ever
*no purchasing dept making me use crap from "preferred vendors"
*no safety twit telling me what he thinks I can and can't do safely
*no lawyer demanding that everything be idiot proof
*I don't have to ever finish a project
*I don't even have to start a project I don't want to
*I can't be fired for screwing something up. I'm already unemployed.
It's a wonder practicing engineers ever get anything done!
Both are in pretty common use - "bandage" as a dressing for a wound and
"wand" as in "magician's wand". I thought these were used in the States
too. I don't know if Mike was the first to use the terms for
electroplating. I haven't heard them used in that sense before.
All I know about Calne is that there's a well-known girls' public school
there. I don't remember ever having been to Calne.
You left out the best one, Don....
You get to sleep with "the boss" every night....
P.S. I wunner if the guy behind this company is also a retired "slip
stick" generation engineer.....
I've got a feeling that "What happens in Vegas is going to stay in
Vegas". I'm dubious about how much sales appeal those "drill powered"
gadgets will have.
OTOH I bought and have kept for maybe 30 years a little plastic cased
rubber vaned pump, intended to be used to suck engine out through the
dipstick hole, or do other fluid transfers. (But not gasoline, not many
drills utilize explosion proof designs. )
It seemed like a good idea at the time I bought it, but to the best of
my recollection I've never ever used it.
[ ... ]
Hmm ... I don't see anything which will keep the drill from
rotating -- other than a little gravity assist working on the battery
pack. Perhaps there is some kind of anti-rotation support on the far
side of the drill motor -- with provisions for getting the cable up to
the trigger to turn the thing on and off.
Hmm ... that sort of sounds tempting with the car which we have,
a 4WD SUV with a heavy duty steel skid plate on the bottom which has to
be removed to drain the oil. (But I suspect that it has to be removed
to change the oil filter anyway. :-)