Designing the ultimate heated undersuit

[RedSeaDiver2]

Was confirming...

Apparently you have zero experience with any heated undergarments at all, you've concluded no existing product will actually work for you - because "reasons"... and you think you can do better than people who have been making drysuit heating products for years

Well the first person who made a heated undergarment had no prior experience either... and lack of experience doesn't mean that I can't make a better product - sometimes starting with a clean sheet of paper and no pre-conceived ideas leads to great outcomes. If we just accept the status quo and never seek better then we will forever remain at the present level. If I didn't believe that I could make something better then I wouldn't be spending my time and money on the project.

 

[grantmac]

I'd recommend the very simple XT30 connector. They are easy to solder, easy to connect with cold fingers and stay together well. I'd avoid JST since they are none of these things.

 

[RedSeaDiver2]

I'd recommend the very simple XT30 connector. They are easy to solder, easy to connect with cold fingers and stay together well. I'd avoid JST since they are none of these things.

I'm actually wanting to use connectors with molded in wiring - less chance of a wire pulling out etc. I found these last night - Connectors - looking at the single pin version - they are 7mm or 1/4 inch in diameter, and once connected about 40mm or just over 1.5 inches long. The ridges on the male part look to be designed to help stop them pulling apart, and although they don't have a waterproof rating I get the feeling that they offer a reasonable amount of sealing.

 

[Whitrzac]

Some janky molded non-sealed potmetal plug is about the worst thing you could use.

 

[RedSeaDiver2]

Some janky molded non-sealed potmetal plug is about the worst thing you could use.

Can you help me by saying why?

 

[broncobowsher]

I'd recommend the very simple XT30 connector. They are easy to solder, easy to connect with cold fingers and stay together well. I'd avoid JST since they are none of these things.

JST is good for plugging a harness into a circuit board. Preferably in a low/no vibration location.
The XT connection, I believe that is one of the versions used on RC cars. Pretty solid connection that will survive a decent cycle count.

 

[grantmac]

I would trust a connection that can be easily replaced over a molded one. RC craft are very high stress for connectors.

In hindsight I'd do XT60s, you don't need the amperage handling but they are much easier to solder.

 

[RedSeaDiver2]

For a thermal fuse - what sort of specs should I be looking for?

 

[Sascha314]

May I ask? Whats your area of expertise or experience, which you can bring into this project? Whats your technical / professional background?

 

[RedSeaDiver2]

May I ask? Whats your area of expertise or experience, which you can bring into this project? Whats your technical / professional background?

Subsea engineer and former commercial diver