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smd test tweezers, got one and it's too cheap

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PekkaNF:

--- Quote from: wheeltapper on January 27, 2016, 05:39:03 AM ---This place sells leads http://stores.ebay.com.au/99centHobbies/Test-Leads-and-Accessories-/_i.html?_fsub=4211729014&rt=nc&_pgn=1&_ipg=48

Roy

--- End quote ---

Thank you. Just ordered three metres and some 2 mm sockets.

Pekka

PekkaNF:
I'm going to order better ones, once I'll order some other stuff as well. P&P will raise one item price substantially.

Anybody having any fun with these or other SMD tweezers? Mine are useless. I'm bit tempted to make my own as a temporary measure, they can't be worse than the one I bought.

But what material to use as tips?

Very tempted to buy smart tweezers type instrument, but original ones are not only nice, but bit pricey for random hobby use.

Pekka

PekkaNF:
Had to try to fix the one I bough. I noticed that the tips had some residue and the edges were really rough. I used some scotchbrite type 3M "hard sponge" (it is made for car paint roughing) and it did clean up the tips. Now I can actually measure something. Tip resistance was ok, not exceptionally high for such a low cost item.

I don't think there was any plating on the tips, it was that rough.

Then I used utility knife to scrape moulding flash out of the plastic "safety" cylindrical insulation OD. After a few minutes it did fit into Fluke meter.

See pictures. First one shows how short the test lead is in real life.

Secont picture shows the tips and banana plugs after minor violence.

I measured one springly stanless steel strip that looked like a perfect canditate for tweezer tips. Four meters of it had a resistance of about 1,22 ohms. Pretty sure that the material resistance will not be excessive here. I have intention to keep the tips short anyways.

How do you bond SS to epoxy laminate?

Is the crimp connection smartest for electrical connection?


Pekka

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