Good crimpers?

[anon4]

After having mare redoing some connections I realise my crimpers are bloody useless. Anyone recommend a good one?

 

[Andy-Mat]

After having mare redoing some connections I realise my crimpers are bloody useless. Anyone recommend a good one?

For which plug type, as there are more than one type pf crimper! You may even be using them wrongly, or using the wrong part or the crimper.
Also, I tin, then crimp, then solder the connection. Then spray all with Wd-40!
Regards,
Andy

 

[Trevormonty]

For which plug type, as there are more than one type pf crimper! You may even be using them wrongly, or using the wrong part or the crimper.
Also, I tin, then crimp, then solder the connection. Then spray all with Wd-40!
Regards,
Andy

Soldering makes for better electrical connector but makes it mechanically weaker. This especially so if wire flexes, more likely to break where solder stops.

 

[anon4]

For those motorbike style connectors like you get with the hall wires, W shape. Also normal ones for bullets

 

[Andy-Mat]

Soldering makes for better electrical connector but makes it mechanically weaker. This especially so if wire flexes, more likely to break where solder stops.

Many use a tiny touch of hot plastic glue to make the connection better. My personal take is that mechanically no difference between crimped and solder & crimped.
Regards

Andy

 

[mike killay]

I have seen it written that soldering and crimping or screwing into domino block or similar is not a good idea because over time solder can flow so that what was once a tight connection becomes loose.
This is because lead is softer than copper.

 

[Andy-Mat]

Soldering makes for better electrical connector but makes it mechanically weaker. This especially so if wire flexes, more likely to break where solder stops.

You tin the wire, the pins are already tinned. You double the tinned wire and pass it into the crimp so that the first millimeter of the insulation is also crimped. You crimp. Then you simply touch a hot soldering iron to the crimp. Some add a tiny bead of hot glue, forming with pliers, at the point where the insulation goes into the crimp. When plug is finished, a quick burst of wd-40.
Mechanically strong and electrically a good connection, and will not corrode. None better...

Regards

Andy

 

[russ18uk]

I have seen it written that soldering and crimping or screwing into domino block or similar is not a good idea because over time solder can flow so that what was once a tight connection becomes loose.
This is because lead is softer than copper.

Well crimping (done properly) is effectively the same as soldering in terms of bonding the metals. The solder over the top may add a bit more connection area.

As long as this isn't advice to wiring your household mains equipment such as tinning brass/copper wires in terminals there isn't a safety issue.

 

[Andy-Mat]

Well crimping (done properly) is effectively the same as soldering in terms of bonding the metals. The solder over the top may add a bit more connection area.

As long as this isn't advice to wiring your household mains equipment such as tinning brass/copper wires in terminals there isn't a safety issue.

Outside electronics! E-Bikes being a good example, moisture and vibration.
regards
Andy

 

[russ18uk]

Outside electronics! E-Bikes being a good example, moisture and vibration.
regards
Andy

And there are better methods to mechanically leverage cables. More likely the cables will shake free from non-latching connectors than because the crimp failed. If the crimp failed due to vibration it wasn't done properly as the metals didn't cold weld together.