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beedee I actually bought a jig tool and some wire a while back but I think I probably got 32AWG (all it says on the reel is 0.4, 25m so I'm not sure). It's very thin and fiddly so I never really bothered with it and just used the pre-made coils I've got. I will order some thicker wire and try with that.

I think I understand the Steam Engine now after Get Off My Cloud explained where I was going wrong but it's a good idea for me to find a video about it, thanks.

I'm just being a bit cautious as I've never used an unregulated mod before and I keep reading warnings about ensuring one understands about batteries and ohms law before doing anything, so I want to make sure I'm using the right coils and batteries before I start.

Get Off My Cloud , thanks, I understand now. I guess I'd have to measure the diameter of the hole on the coils if I buy them. I'll get some 24AWG wire as you suggest.

I'm curious about your target resistance of 0.7ohm as someone told me that the sweet spot (maybe specifically for the Pico Squeeze and Wasp Nano) is generally 0.15ohm-0.4ohms, that at 0.15ohms it puts out ~50w and less at higher ohms, that 0.15ohm runs hot and ramps up quick and 0.35ohm heats slowly and runs cool. If I put the target resistance as 0.35ohm that gives 5 wraps and 16W, which is nearer the 9W I'm currently vaping at but I'm not sure I can really compare the wattage between my current gear and the squonk mod. I'm using these coils at the moment, so maybe it's those that are limiting me to 9W? www.fasttech.com/products/2133108

Yeah, it's probably sensible to have a back-up just in case. In fact, whilst typing this the charger started flashing EE again, like it knew I was writing about it! So I definitely need to order another pronto.

Well I got fed up with it again this afternoon as it started only firing for anywhere between 0.3-2s before cutting out again, so I took it apart again and examined it properly. As you can see in this photo, it seems like part of the insulation ring has burnt away. I thought it might just be crud on top of the ring but I carefully scraped it away to find there was no ring left in that area. Happily though, after scraping the crud away, it's working normally again now and fires for as long as I hold the button Still I'll be glad when I receive the extra RBA atty and the Crius tank so that I have some alternatives in future.


Thanks for all the advice guys, it will help me setup my coils better, diagnose any future problems quicker and maybe even help me avoid damaging any more hardware.

Thank. I didn't realise the RBA could be stripped down but after reading your post I looked into it and found the bottom post with the holes in it unscrews, so I stripped it down and gave everything a quick wash.

It's sort of working now. Without the coil it showed "Check atomiser" as expected and with the coil it fires now but cuts out after 2-3s. I've got two Cloupor minis and have set both to 4v/20w. When I fire it, the readout shows 0.51ohm and 3.20v. On my older, black, Cloupor the tank worked straight away but on my newer, silver, one I had to loosen the screw on the Cloupur by a couple of turns (it's fully tightened on the black one) to stop it showing "Check atomiser", which is a bit strange as it worked before with the screw tightened.

At least I can get some hits with it now though, even if they only last 3s and don't have to keep using the leaky OCC coil or the bad tasting Nautilus 

Good price but I don't really want to buy 100 as 5 would probably last me a year and I've got enough stuff cluttering up my flat as it is!

I looked on FT but the reviews of their syringes with needles say that the needles are useless for e-liquid, that the syringes don't accept standard needles that we might buy elsewhere and FT don't seem to sell any needles separately which would fit. I don't need needles for the nicotine, as I decant that into a 100ml tub which makes it easy to draw up, but I do need needles for the flavours.

Woops, missed the last couple of posts somehow

Thanks for the suggestions nanotm The crius looks like a pretty good topfill tank and the through-hole coil posts should be easier than the subtanks screw-down posts hopefully, as I find those quite fiddly. Must just be me, as everyone else seems to like them but I pretty much have to undo the screws all the way to wrap the legs around them, which runs the risk of the tiny screws falling off and getting lost. I find I have to wrap the legs around the screws as if I just lie them under one side of the screw with the end pointing outwards, it's difficult to cut them close enough to prevent the end shorting against the metal cover. Once I've got one end screwed down it's easier to do the other one but I always seem to end up with the coil rather badly postioned and twisted and I have to put the screwdriver through the centre of the coil to try and push/twist it into a better position.

My subtank RBA is playing up at the moment anyway. It was working fine all day but in the evening I noticed it was firing for a couple of seconds and then cutting out. I'd only changed the coil recently but tried fitting a new one, only to find it reporting as "shorted" or "low resistance". It certainly wasn't making contact with anything it shouldn't. Then I found even with no coil at all, it would fire briefly and a puff of vape would come out of one of the screw holes in the posts (I'd removed the screws completely at this point)! I thought the post that has a bit of play to it might be shorted to the other, fixed, post by gunk where the gap between them should be, so I cleared that area with a thin blade until I could see a clear gap but that didn't help. I've ended up using one of the old OCC coils I kept, which is pretty much worn out but I'm desperate as I don't have any other tanks I can use at the moment. I've got a Nautilus that my friend gave me but I never got on with that (I think it leaked on me) and I think I gave him the coils back. I've got a couple of Spinners and I think I've got some heads for those somewhere but I'll have to dig around tomorrow to try and find them and order some OCC coils for the subtank urgently to keep me going. I might buy a spare RBA head too as there's this somewhat improved Mini RBA Plus www.fasttech.com/products/0/10014112/2390700-authentic-kangertech-subtank-mini-rba-plus-coil

I think I'll get the triple pack stainless steel subtank topfill replacement kit that you bought as well. I've got no interest in a smaller tank than I've currently got, so won't use the 3.5ml one but I'm interested to try the 9ml one as I'd prefer to refill less often even with a topfill. It's a bit annoying they only sell these 4.5ml ones with the clear tanks in a 4-pack www.fasttech.com/products/3023/10014944/3820004 as I don't like the coloured tanks they sell individually because they just make it harder to see how much juice you've got left. The 7ml Subtank Plus might have been interesting if it was a topfill and it might have other issues I don't know about.