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› Testing solder joints
06-06-2009 09:14 AM  8 years agoPost 1
helinutz

rrVeteran

Bournemouth, Dorset, UK

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When fitting new connectors to batteries, motors and ESC's, is there any way to test how good they are before flying.
Things like continuity between the connectors, maximum current the connector can handle and any power loss through the connector etc.
I'm talking testing with readily available kit like multimeters etc, but would consider purchasing a specific tool if required.

>>>>>I'm so broke, I cant even pay attention!<<<<<

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06-06-2009 02:19 PM  8 years agoPost 2
TJinGuy

rrProfessor

Socorro, NM - USA

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The best way to know if you have a good solder joints is to visually inspect it. It is easy to see if there is problem. Other than that I don't know of any way besides stress testing hat will tell you anything useful.

- Chris

Team New Mexico
TJinTech

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06-07-2009 10:36 AM  8 years agoPost 3
Busher

rrKey Veteran

Manchester, England

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The only way I know of testing a joint for good continuity, is by using a Ductor tester. They are specifically used to measure super low resisitance across joints and will give you a good idea how well you have soldered your joint. From that reading you can use ohms law to work out your losses across the joint under you circumstances.
However they cost a small fortune. And for our purposes you would be better honing up on you solder skills, and as mentioned visually inspect the joints.

Good luck
Busher

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06-07-2009 11:20 AM  8 years agoPost 4
helinutz

rrVeteran

Bournemouth, Dorset, UK

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ta, will just keep practising

>>>>>I'm so broke, I cant even pay attention!<<<<<

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06-07-2009 12:02 PM  8 years agoPost 5
chris6414

rrApprentice

Sneads Ferry, NC USA

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A tip... whatever piece of the joint is the bigger heat sink, get that hotter, first and you should have a good joint. Errors happen when you get a surface melt on both and it seems to stick but is actually a cold joint. The joint should almost look like they are the same metal throughout. Always Tin each piece with good coverage

Century Hawk Sport, OS .32, Futaba 7C, GY-601 9251
Predator Gasser SE G-23, Fut 3010 servos, JR gyro/servo

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