dual 18650 1590G mod with front voltmeter, LED switch, MOSFET, and slide switches

[DaveSignal]

I hadn't seen anyone do a G box exactly like this and wasn't positive that it would all fit, but it worked out perfectly:

If interested, a build video is here. I didn't fully go over every step of the component wiring in the video, but I really just wanted to prove that it was possible to fit a voltmeter like that, even in a small G box.

- Dave

 

[david4500]

Nice looking mod Dave. Good to see you got the voltmeter positioned like you wanted. I like the textured white finish. Did you paint it yourself or have it coated? Think I've got some rustoleum textured white that might come out similar.

 

[DaveSignal]

Thanks for the compliment, but I didn't paint it. I live in an apartment in England at the moment, so I don't really have a good place to be working with paint. I found that color from a seller on eBay, but it is a Hammond factory painted color Grey... it does look more off-white than Grey in most lights, but the full model is 1590GGY.

 

[david4500]

Oh ok thank you. I'll have to buy a few of those.

 

[Roccov]

Nice work sir! Thanks for sharing. Enjoy the day!

 

[DaveSignal]

Some people have privately asked me for a wiring diagram. I did attempt to do one while I was making the video using pencil and paper, but it came out hard to follow and I decided not to include it. So this is a quick drawing done on my laptop:

 

[Jesse85]

I hadn't seen anyone do a G box exactly like this and wasn't positive that it would all fit, but it worked out perfectly:

If interested, a build video is here. I didn't fully go over every step of the component wiring in the video, but I really just wanted to prove that it was possible to fit a voltmeter like that, even in a small G box.

- Dave

Nice build man! If you don't mind me asking what's it generally cost for parts for a build like this?

Is this regulated or not? Or does the volt meter just read the battery voltage?

 

[DaveSignal]

Nice build man! If you don't mind me asking what's it generally cost for parts for a build like this?

Is this regulated or not? Or does the volt meter just read the battery voltage?

It is unregulated. I built it for myself and I prefer it that way. But it wouldn't be hard to do with a small regulated chip either.
The voltmeter is for monitoring the battery level.
I don't remember the exact prices of all the parts, but here is an estimate:
hammond box: $10
keystone battery sled: $2
LED switch: $4
multiple slide switches: $1
fat daddy low profile shorty 510: $4
voltmeter: $3
MOSFET: $3

so $27 for all the main components. If I included the wires, magnets, solder, heat shrink, etc its probably around $30.

 

[Jesse85]

It is unregulated. I built it for myself and I prefer it that way. But it wouldn't be hard to do with a small regulated chip either.
The voltmeter is for monitoring the battery level.
I don't remember the exact prices of all the parts, but here is an estimate:
hammond box: $10
keystone battery sled: $2
LED switch: $4
multiple slide switches: $1
fat daddy low profile shorty 510: $4
voltmeter: $3
MOSFET: $3

so $27 for all the main components. If I included the wires, magnets, solder, heat shrink, etc its probably around $30.

That's awesome! Thank you for all the info. I'm gonna check into it. I thought it was unregulated, which is most likely the route id go to start until I get comfortable building. Plus them variable chips ain't toocheap from what I've seen. Really wanna build a squonk box. Never enough vape $ lol but hope to save some now that I'm making my own juice

 

[Tbev]

Looks great, i love that meter.

You wouldn't happen to know where to find and voltage meters that are smaller than thatn would ya? I wanna maybe use one in my vape mods with a lipo but i need a smaller one.

 

[DaveSignal]

Looks great, i love that meter.

You wouldn't happen to know where to find and voltage meters that are smaller than thatn would ya? I wanna maybe use one in my mods with a lipo but i need a smaller one.

I have used voltmeters with .36" and .28" mounting holes. The .28" are the smallest I have used. They can fit in a little bit smaller area by sanding off the part of the PCB with the mounting holes. Something smaller must also exist, but I don't know where to find it.

 

[TorontoOntario]

You should sell those for $90. Does the meter show how much power is going to your coil as well via switch or is it just battery level. Seriously though man, $90-$100. I would pick up a few just cause I hate soldering with a passion and really find no enjoyment in building boxes, I actually despise it ahaha.

 

[DaveSignal]

It shows the voltage going to the coil under load, but it is measured before the coil, so it doesn't account for the full voltage drop of the coil. I did this intentionally because a white LED voltmeter requires a little bit higher voltage to turn on.

 

[TorontoOntario]

Makes sence, makes sence.