Goblin Mini build question

[smokin909]

i bought this a few days ago and I love it. Nice finish and build. Good airflow options, Perfect size for my needs, looks sweet on all my mechs and I love the flavour. I've been using rdas for almost a year and a kayfun so this has been my first new rta for a long while.

I build single coils on this and use the adaptor. My airflow is open about a third of the way. My first build was good in that it didn't leak, but I got lots of spitting and crackle and pop. Like little spitfires launching at my mouth. What would cause this? I've never had this before on an rda.

Second time I built it I got the leaking issue as well as the crackles. I think maybe my wicks this time were a little too short. I trim them to just touch the top of the juice channel - is this right?

Where should I position my coil in relation to the airflow channel underneath? Higher up or lower down?

Any suggestions would be much appreciated. I'll pull it apart later and post a photo of the current build that has been causing the leaks.

 

[smokin909]

Can't remember if this was a 2mm or 2.5mm ID

View from top down with chimney on:

Side view of each wick end:

Frontal view of coil position in relation to airflow channel:

 

[Carnage9270]

I cut my wicks at an angle so the tips go into the juice channels. If you do it right, the wide part of the angle sits on top of the juice channel and the tip hangs in. Eliminates leaking and doesn't compress the cotton in the channel when you put the bottom of the chimney on.

As far as where to put the coil, that is up to your build. I see in yours that you are using a large diameter so it's going to restrict your airflow. I build mine on a 2.5mm rod but they aren't twisted. You need to leave enough room for air to pass freely or it will get a little warm in there.

 

[smokin909]

Thanks carnage for the tips I'm going to use 2mm ID 28g with no twists - keep it simple and trim the wicks up at an angle and hopefully using plain kanthal and not twisted will also resolve the spitting and popping.

I also think I've figured out why my second build leaked - I literally just noticed the o-ring that should be sitting on the build deck was stuck to the tank. I'm not sure if that occurred when I removed the tank to take the photos above (second build) or if it happened when I removed the tank from the first build to rebuild the second time. If it was the latter - there is every chance I screwed it back together with the o-ring facing up and no o-ring on the bottom deck. I think that's what happened because I remember thinking the second time that the chimney wasn't screwed down enough - so I'm guessing I had two o-rings butting up against each other up top and none on the deck.

 

[mtbason35]

From the pictures it appears that the tail of your wick on the right side is not blocking the entire juice channel. With the goblins I've definitely learned that less is more when it come to wicking but you have to cover that channel, even if you don't put any wick down the channel. Basically you have a canal for the liquid to flow straight into your airflow hole, causing the leaking. Just place your wick at the top of the channel. But still covering it and you should be golden. They really are great tanks!

 

[smokin909]

Yes I think you're right mtbason35 - I did some more digging and I think I've nailed it. Not one leak so far and the spitfires have ceased to attack me! I do love this tank, so happy I've got the build down.

Here's the video that i really liked and followed his wicking process - I cut my wicks to the deck and tapered them as discussed above, then I put the chimney on as shown this video and went from there. Wicking part starts at 15min mark:



This video, on the other hand....well....lets just say I was caught somewhere between horror and hilarity:

 

[mario23]

I have one of these on the way and really want to try a nickel build on it. I have studying to do!


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[smokin909]

The second video in my post is more a comedy show procrastination break.
The first one is really good, he goes into nice detail about the tank - the rebuilding aspect is clear and makes a good point about checking your coils in relation to the chimney - as there's not a lot of room there and you don't want to short anything out and I found his wicking process worked for me. Using the tip of the screwdriver to channel the wicks into the right spot after the chimney has been screwed on was a great idea - but not having wicks that are so long that they block the channels.
As it's been said - once you get your build on, you'll love it. I also love the drip tip - and I never thought I would when I got it - I'm getting more glass drip tips for my other attys!