I've used them for the same purpose (vacuum head) and I got them from a
pharmacy, any old pharmacy will do tho you will be guaranteed to get them if
you go to an area with lots of junkies in it they use them for needle
exchanges....you may get a few funny looks tho. Here in Sydney this happened
to me when I was working in a suburb of Sydney that is renowned for the drug
problem, I needed one to dispense grease into a small mech inside an ATM,
got some funny looks going in dressed in work gear asking for a needle and
syringe......

JJ
----- Original Message -----
From: "Wagner Lipnharski" <wagner@USTR.NET>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Monday, January 06, 2003 2:21 PM
Subject: [OT] ... SMD manual handling


> Hi, still on the same old subject,
>
> After many weeks I was able to find out an aquarium pump with BOTH, vac
and
> pressure connectors, since the "modern" units only have the pressure
> output.  I was almost inserting the whole pump into a sealed chamber with
a
> hole from where I would have vac, but then I found an old pump at a
surplus
> store.
>
> The vac pump is to be used to catch SMD components (resistors, capacitors,
> small transistors, etc), and move them over the solder paste on the pads.
> When touching the solder paste, it detach the component from the vac
> nozzle, much faster (in real) than using a tweezers.
>
> Then, following recommendations from here, I went after some injection
> hypodermic needle, that should be cut in the middle and filed, so it will
> be the vac nozzle that will pick the components.
>
> Well, let me tell you this:  In Orlando, I went to 8 different stores,
> mostly pharmors and Walgreen's, Kmart, Wal-Mart etc, not a single place
can
> sell a ridiculous hypodermic needle.  They simply don't have it.  I
> remember in Brazil pharmacies, you can buy them by the pound if you want,
> any size, any quantity.  I asked some guy "what the matter?"... answer?
> "Oh, it is dangerous and can be used badly" - I answered "also gasoline,
> and they sell by gallons in the corner's gas station"... the guy just
shake
> his had (as if I was crazy - hu uh!)
>
> So I am asking, someone can purchase hypodermic needles at the corner's
> pharmacy at your (USA) city?   I could send some $ via Paypal for it.  I
> would like 3 or 4 different sizes to find our the best one.  I understand
> the needle should be less than one millimeter in external diameter to have
> the inner diameter not big enough to vac escape from the sides when
holding
> a small component, but it can't be so small, since the vac could be not
> enough to suck the component.
>
> I am pretty sure they STILL selling needles somewhere, since people still
> taking shoots at the doctor and such, right?
>
> Needles are dangerous?  so is a pencil, the eyeglass arm, what about big
> knifes? you can buy it at K-Mart... kitchen department... crazy people.
> Lets label paper clips as dangerous too.  What about tooth-picks?
>
> Wagner
> Orlando Florida
>
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