Just finished a box mod

[Chegs]

Well,pretty much finished.Just waiting for the USB charger boards to arrive so I can recharge the Lipos when they're done.

Ingredients:...

Hammond enclosure
4 x 1000 mah lipo cells (parallel)
1 MosFet (N)
14 AWG RC modelling cables
1 blue MOM switch
1 x 510 connector from FT

The finished device has just been tested to 0.34 ohms & showed a voltage drop of just 0.15 volts with whatever charge is left in cells when they're dispatched from the manufacturer.I will be covering it with something,paint/transfer etc as the enclosures aren't in the best of condition by the time they've traveled from Asia with nothing but a thin plastic bag cover.I have 2 more enclosures to convert to box mods,but they can wait until I've actually totally finished this one.

The construction was a royal pain,as a 25 watt soldering iron struggles to heat such as 14 AWG cables + whatever your attaching to.Therefore,I won't show the interior(yet)as the soldering looks like I just stood in a foundry catching lumps of hot metal & hoped it hit the correct area.

Completed mod
Right after completion,in need of a charge
With a 0.34 ohm RDA aboard,as you can no doubt see the voltage has dropped more as the cells are in need of a charge.


I'll have to get myself a better soldering iron before I start on the next one,and when I do I'll sort out the dire soldering in this one & reveal just how easy they are to build.It is actually harder to source the various components than it is to create them.Although if we had a reliable fecking postal delivery service in this part of the world,the sourcing might not be the guessing game it presently is.

 

[doobedoobedo]

Nice. How are you charging it?

 

[Chegs]

I'm unable to charge it until I get the USB charging boards I've ordered. They are 1 amp boards so will take upto about 4 hours plus to charge(if the 18650 's are anything to guide me) I hope they arrive in the next few days though, as I'm keen to start testing the longevity of my lipo pack(actually, it's to confirm my soldering of the individual cells tabs together are connected properly)

Sent from my SM-T210 using Planet of the Vapes mobile app

 

[Chegs]

The USB boards arrived today,installed & charging now with no obvious problems from the lipo pack(not getting remotely warm)so in a few hours,I'll start to epoxy everything in place(once the batteries have charged)I checked the output from the board before trying to charge the lipo pack(multimetered)as I didn't wish to discover that the output was way off the stated output voltage(the boards ARE from China after all)

 

[doobedoobedo]

The USB boards arrived today,installed & charging now with no obvious problems from the lipo pack(not getting remotely warm)so in a few hours,I'll start to epoxy everything in place(once the batteries have charged)I checked the output from the board before trying to charge the lipo pack(multimetered)as I didn't wish to discover that the output was way off the stated output voltage(the boards ARE from China after all)

Get some silicone glue. It sticks things just as well as epoxy, but is removable if necessary . Only drawback is that it takes 12-24 hours to properly set.

 

[RicModMaker]

Good work chegs. Looks a corker!

Sent from somewhere deep and dark in the mod making pit!

 

[robski]

Chegs

Good work fella!

If it's not too late you might want to try to reposition the mounting of the 510 connector a bit so that it's only a millimetre or two proud of the case, if at all possible. It might relieve the stress on the connector when the mod is being handled or in your pocket with an atty connected. Another solution might be to fit some form of beauty ring to the case.
Does that makes sense?

R

 

[Chegs]

robski
Thought about mounting the 510 onto a strip and then mounting the strip so the top of the 510 is just above the enclosure, but that would mean 2 extra holes with the head of the fastening through. These 510's were 68p each from ft, as everywhere else I've tried the little insulator splits and ruins batteries or battery holders as the feckers short circuit and the lipos would frighten me if they were subjected to a short. As these 510's at least have survived 14AWG being soldered to them and then reassembled, I'm not keen on further removal for any purpose unless I've removed the lipos first. At present, everything is being held in place with little strips of double sided tape that came with the batteries(quite surprised at just how well they're holding the bits securely) I'm tempted to use them to hold the USB board.

The battery pack finished charging about 1:30pm and I've been vaping on it ever since, including dry burning the coils a couple of times and they're still only dropping 0.15 volts on 0.34 ohms(reason for the dry burns was trying to find a juice I liked as the coils heat up really fast and a couple of my juices tasted burnt)

Next addition to these box mods will be a small voltmeter so I'm less likely to over discharge the batteries. Had a very quick look round eBay the other day and can't remember if I saw any small ones, hoping to find something about dna/Vamo screen sized as there's not much space left

Sent from my SM-T210 using Planet of the Vapes mobile app

 

[RicModMaker]

Its worth doing chegs. I make a strip and bend it so the ..... I cant explain. Have a look at my last mod and you'll see. It makes it much stronger. I'd also say that those 510 connectors aren't that deep. My next mod is going to have the connector about 1 mm inside so the Atty sits flush on the case.

Sent from somewhere deep and dark in the mod making pit!

 

[RicModMaker]

I've also been experimenting with grinding brass screws, rubber tubing and all that kinky stuff to make those 510s even better. I've got some Teflon tubing coming that will rule out shorting by stopping the positive pin from moving sideways. The rubbers are quite easily damaged and had a few victims laying around so figured a brass pin would do the trick.

Sent from somewhere deep and dark in the mod making pit!