Postmodern Smoking
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Post by Postmodern Smoking on May 16, 2016 22:11:36 GMT
If had my VTC mini for a while now, using it with a Velocity clone dripper. Really like them, but I suspect that some eliquid may have leaked into the unit/button (I'm sometimes having to wipe away excess e-liquid from the top of it if I overfill). The fire button operation has gradually become temperamental.... has anyone taken apart one yet and cleaned it? Is the fire button accessible/cleanable? [ETA] - VapingBad, @windows, et al
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VapingBad
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Post by VapingBad on May 16, 2016 22:31:23 GMT
I have not, but you bay be able to clean it with out taking it apart using IPA.
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VapingBad
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Post by VapingBad on May 16, 2016 22:33:50 GMT
Quick google found this haven't watched yet, but my one needs the 510 sorting as it is not good with temp limiting so I will watch now.
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SteveF
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Post by SteveF on May 16, 2016 22:33:58 GMT
yes, quite easy to take the casing off. Four screws in the battery tray and the 510 is just slotted in. don't drop the positive spring and insulator
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Postmodern Smoking
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Post by Postmodern Smoking on May 16, 2016 22:37:49 GMT
I have not, but you bay be able to clean it with out taking it apart using IPA. Ok, thanks.... I'll wait and see if anyone else has attempted surgery on one, or not... failing that I'll go exploring and IPA-ing. (I'll have to get some IPA though, maybe some Indian Pale Ale for me and some Iso-Propyl Alcohol for the VTC ) [ETA] ninja'd by SteveF & VB
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SteveF
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Post by SteveF on May 16, 2016 22:53:33 GMT
I took mine apart ages ago, definitely needs a better 510. several trains of thought.
simple fix with vari-tube or fat daddy
new case with lipo,
would the board take a 2s or 3s with cuboid or rx upgrade to the software? Afraid I'm not going to buy one for comparison
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VapingBad
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Post by VapingBad on May 16, 2016 23:10:14 GMT
I took mine apart ages ago, definitely needs a better 510. several trains of thought. simple fix with vari-tube or fat daddy new case with lipo, would the board take a 2s or 3s with cuboid or rx upgrade to the software? Afraid I'm not going to buy one for comparison I rather keep the Joytec 510 than downgrade to a Flabby Daddy, my first concern is the pathetic thin wire they use for the negative to the 510, compare it to the DNA 75 I built recently.
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Postmodern Smoking
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Post by Postmodern Smoking on May 16, 2016 23:31:47 GMT
I take it that you gone spinning the screwdriver VapingBad ? Do you reckon IPA will penetrate the switch? .... or how replaceable are those SMD switches?
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Post by VapingBad on May 16, 2016 23:51:15 GMT
I take it that you gone spinning the screwdriver VapingBad ? Do you reckon IPA will penetrate the switch? .... or how replaceable are those SMD switches? I would try IPA, de-soldering the switch is right up there on tricky soldering difficulty scale with 4 surface mount pads in the corners. A job for a couple of soldering irons, maybe a couple of tweezers heated with a gas torch, grinding the switch down with a dremel so you can do one pad at a time may be possible or an SMT hot air gun. Once you get the old one off fitting a new one is much easier as you can solder one corner at a time. More info www.youtube.com/playlist?list=PL2862BF3631A5C1AAI am not doing anything to my Evic ATM as I think thicker wire will likely foul on the fire button, I will probably do it sooner or later if I don't throw it into orbit with the New coil same coil messages first.
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Postmodern Smoking
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Post by Postmodern Smoking on May 17, 2016 0:02:50 GMT
I am not doing anything to my Evic ATM as I think thicker wire will likely foul on the fire button, I will probably do it sooner or later .... The wire may be okay, as it's only a short run and connected to a decent heatsink (the 510), I would have thought that it depends really on whether or not it's exceeded recommended current density.
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Post by VapingBad on May 17, 2016 0:18:07 GMT
I am not doing anything to my Evic ATM as I think thicker wire will likely foul on the fire button, I will probably do it sooner or later .... The wire may be okay, as it's only a short run and connected to a decent heatsink (the 510), I would have thought that it depends really on whether or not it's exceeded recommended current density. IMO it will be a significant resistance with temp limiting and low res coils, if I get round to it I will let you know if it cures some of the bad behaviour in temp mode.
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Postmodern Smoking
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Post by Postmodern Smoking on May 17, 2016 0:26:57 GMT
The wire may be okay, as it's only a short run and connected to a decent heatsink (the 510), I would have thought that it depends really on whether or not it's exceeded recommended current density. IMO it will be a significant resistance with temp limiting and low res coils, if I get round to it I will let you know if it cures some of the bad behaviour in temp mode. I haven't seen the wire in person (just your enlarged pic, that may be deceptively not tiny)... so you may be right, although I would have thought the engineers at Joyetech would have done the calcs. I haven't got around to trying TC mode or sub-ohm, so haven't experienced those issues.... (yet!)
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Post by VapingBad on May 17, 2016 1:02:14 GMT
IMO it will be a significant resistance with temp limiting and low res coils, if I get round to it I will let you know if it cures some of the bad behaviour in temp mode. I haven't seen the wire in person (just your enlarged pic, that may be deceptively not tiny)... so you may be right, although I would have thought the engineers at Joyetech would have done the calcs. I haven't got around to trying TC mode or sub-ohm, so haven't experienced those issues.... (yet!) At least 10 times the cross section area, but doing the calcs in EE is only a starting point you need to test and IIRC Busardo was talking to one of the Chinese manufactures about under spec power and they came back with if you measure the output at the board it does the wattage speced . Take SS316 you only get 17% change in res from room to vape temp (70-330 F), the 510 and wiring are series resistances that van really affect this badly. For me I build SS at about 0.2 ohm so that is only a 34 milliohm change from room to vape temp or about 1 milliohm per 10 F and I want +/- 10 F accuracy. It also affects stability a lot, I remember reading a reply on the Evolv DNA forum where the mention some really surprising results using thinner wiring, but still a hell of a lot thicker than the ground wire in this, IIRC it was about 20 AWG they were talking about.
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SteveF
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Post by SteveF on May 17, 2016 7:07:19 GMT
hmmm... yeah in comparison to the dna that looks really quite cheap n nasty tbh its been a couple of months since I took mine apart to clean but the 510 neg feed looks UV coated like the neg input wire? Damn these eyes but is it actually a solid wire?
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Post by phtumshk on May 17, 2016 7:33:31 GMT
The thing that shocked me about these is theres only the coating on the case stopping the battery shorting. When I put the sx350 chip in mine i smeared a layer of epoxy for the spring to sit on for peace of mind.
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