Advice on a simple box wiring project please.

[Davantrac]

I hope this is in the right place.

Im going to build a simple box mod just for coil building tweaking and wicking. Simply a box, a battery, a fire button and a 510 connector and a few wires. It will be used as a work bench only to do the simple tasks at 1 station without have to fit the atty to different mods to test them.
Do I need any fancy fuses or circuit boards or safety items, any particular size wires or switch. I'm looking at it as a simple mech mod with switch.

 

[BlueridgeDog]

A basic mechanical mod with one battery is nothing more than a battery, switch and atomizer, so your plan should work. The only think you won't be able to do on the rig is nickel coils.

 

[Davantrac]

Thanks Blue, that's what I was thinking. I don't need any super switch or wire then.?
I'm building the box with two separate 510s, two battery set ups and totally I dependant of each other. The other 1 is getting attached to an ohm meter which is just cheap FastTech one I've broken down for the parts so no problems there.

 

[BlueridgeDog]

You need a switch rated for the load, so any switch used for mechanical mods should work.

 

[Davantrac]

So this will be ok then.
https://www.fasttech.com/products/2013501

 

[drmarble]

I would use a mosfet and resistor. This takes the load off the switch. That Fasttech switch doesn't show the amp rating. If you are lucky it is 3 amps which isn't enough for sub-ohm builds, or even 1.2 ohm builds. It is probably less. The mosfet lets you use any switch.

 

[Davantrac]

I would use a mosfet and resistor. This takes the load off the switch. That Fasttech switch doesn't show the amp rating. If you are lucky it is 3 amps which isn't enough for sub-ohm builds, or even 1.2 ohm builds. It is probably less. The mosfet lets you use any switch.

Any links to one of them? Prefer uk supplier but will start searching myself. FastTech have things that come up when I search for MOSFET but not 100% sure what I'm looking for yet.

 

[Davantrac]

Right I've found 2 different ones that to be the right thing I'm after, but which one so I go for. And how do I wire it in please.

Search - Mosfet

 

[BlueridgeDog]

Here is a good diagram:

Need Help with n-Channel MOSFET Circuit

Personally for just a bench test rig I would skip it and just wire in a big switch, like a light switch you would use for your home...flip on flip off...

 

[opensec]

if you chose to get a mosfet, do not get a chinese fake one, go with safe retailers (mouser, digikey), here's the mosfet the most commonly use, but don't take my word for it, do some research, I never used one (i'm a regulated kind of guy) IRLB3034PBF International Rectifier | Mouser

 

[opensec]

I agree with blueridge though, Mosfet will just prevent you to get a button failure, but the mosfet itself still can fail , Mosfets are not really safety features, they just act as a switch guard, if you don't mind a big switch that you may have to replace overtime, just forget the mosfet

 

[Davantrac]

Ok guys thanks very much. If Without the MOSFET it can only lead to switch failure I'll go without for now and just upgrade the switch in future. How do I know what amp/power switch to get? For a minimum 0.5ohm coil what amp rated switch would be safe?

 

[opensec]

Assuming you're not carrying your test station in your pocket and that you can rapidly access a kill switch and/or the batteries, assuming you don't fire it for excessive durations and assuming you keep an eye on it, i would say it is safe enough (plus of course ohm law and battery safety)
now since you get your mosfet in a reputed electronic store, order a 16mm anti vandal switch with the highest amp rating you can find, should be good.