| Electronics > Projects, Designs, and Technical Stuff |
| Pin Connectors, Crimpers, decent connections, and the futility of it all... |
| << < (3/6) > >> |
| timelessbeing:
I use tool-less connectors whenever possible for this reason. |
| stj:
so are there any official outlets/sellers for "Engineer" tools in Europe / U.K. ?? i wouldnt mind a Pad-02 set, but at those type of prices i'm sure there are clones around. |
| T3sl4co1l:
And then there's IDC connectors. Stupid easy to make up, can even get passable results with a flat blade screwdriver. Good results, though -- reliable? Not even the wiring houses can manage. Related subject, I had another example of this, the connectoconfusopoly. Had spec'd a 3M 30310 series header. I know they make these with holes in the ends, so you can fit a retention clip over the plug; nice, right? I thumb* through the 3M catalog looking for these mates, since I'm responsible and I want to get it from the horse's mouth, not just assuming that what looks right will work. A dozen minutes later and I'm looking at the only clip they offer, and it's for the 2500 series headers. :palm: Naturally, they don't provide dimensions on where those clips hook onto, so it's anyone's guess if the clips work or not. Long story short, I have to offer the customer the retention clip option with a BOM substitution to be sure it works (or to pick up some clips and, you know... try them? ewww). *Virtually of course. Even more tangential, press-fit connectors -- heard one engineer was invited to a presentation by an FAE selling these sorts of connectors. Later into the presentation, he proclaims their process has a "99.7% connectivity rate!" Our engineer raises his hand with a grin, asking: "Great, so if I have a thousand-pin connector on my backplane, can you tell me which three pins have failed?" The meeting ended soon after... Tim |
| stj:
if by IDC you mean the punchdown type, those are easy. but i hate them, there is no cord-grip/ clamping - they turn into wire strippers if you pull too hard! |
| Psi:
One thing you can do to find a cheap china crimp tool for a connector is to message and ask a connector business on aliexpress/alibaba. For any semi-common connector pin they will know what crimp too to use, or will know someone else nearby who they can ask. (Most of the time its just a little Shenzhen store, so it's very easy/quick for them to walk 50meters to the crimp tool store and ask/buy one) Most china crimp tools are like ~$20 so if you say you will be ~$50 they will be happy to figure it out for you and take the $30 Obviously it depends who you ask, dont just ask a random seller. Look for a business on aliexpress that deals a lot in connectors. but most of the time this approach works to get you a crimp tool that works and doesn't cost $800. Even if it takes you a few attempts to get a good tool it's still way cheaper than $800 for an official tool. |
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