Underdog Log Vapes

I just did ethanol wash of my gnome gong that i use as UD stem. I am thinking to toss it in the freezer to pop out the lil water bubbles left and then hit it in the Gnome dome ..
OTA i don't know shits about electricity but i think it will result that it will prolong the heating time .. not that much heat power..
This just did a K.O to my socks...

OhTheAgony said:

When I check the readouts from my pc when it's plugged in to the same wall-socket as my UD was I measure 11,65 Volts at the 12V line. I know from benchmark testing that my Seasonic X-650 should produce 12,11 at worse at these work loads but more like 12,25 realistically.

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I'm not sure what is going on here, but the output voltage should not change regardless of the input voltage. If you have a look at the label on the X-650, you will see it has an input voltage range of 100-240VAC. This means that even at 100V input you should still be getting the same output voltage.

You should try using the thicker stem in your UD. It creates a better seal for me and my hits just seem that much better. Also, have you vaped in front of a sunny window or in front of a lamp? I dont enjoy vaping in non lit rooms because i ccant judge how much vapor im getting and it always seems like im getting nothing when i know im getting alot.

hope that helps.


Wow abysmal that looks like some awesome oil.

VaporBoxed said:

Wow abysmal that looks like some awesome oil.

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Well that is condensed Underdog vapor.. It is 100 % times purer than my wand hash with DBV and stem hash with MW.. The difference in potency is like mid grade hash vs high quality oil . mmm and the taste is awesome... even better on some trim batches i've runned recently .

I'm not outside of the US nor an electric supply expert so I can't comment on you guys' problems with the power supply, but I can say that my unit seems to have a loose jack as well, and I usually have to take care to push it back in tightly after a hit whenever I am using my UD with friends. Also, Ive found that having a very fine grind makes a huge difference in vapor quality and ABV color, even with the same herbs and screen position. For me, the small MFLB grinder works the best.
Another trick I wanted to mention is something I discovered last night: I did an impromptu water filter by putting an ice cube and some water in my mouth while hitting the UD. With the right mouth placement, I got it to make a bubbling sound, and the vapor felt a lot cooler as well. Obviously, this trick isnt really necessary for those of you who have actual bubblers, but I thought it was a good way for people who don't have bubblers to still get cooler vapor.

my jack is loose too, but it saved my Twig from falling off a table when my friend walked through the cord

well, not loose, just the nature of the straight plug makes it come out easy, you feel me?

Hey OTA - damn I was hoping you would be up and running without any further problems but I guess that isn't to be.

Can you look at the car/wall adapter thing you're using and tell me what it says (in English please lol) as I am wondering if it isn't also some kind of switching power supply also because those don't run well with these devices. I'm almost certain that what the problem is that you're experiencing with the original UD plug, and it might be the same for the car adapter too.

The plug socket on the UD itself is supposed to have a fairly loose fit, this is to avoid damage in case of tripping on it, etc and shouldn't part of the problem. Abysmal's was a bit of a different case altogether so we can't really compare it to this I'm thinking.

Do you have an old fashioned 12v power supply laying around, like one with a transformer in it? You could tell because it would probably be big and heavy compared to the little new ones? If so you should try that and see if it gets better results.

barca14 said:

Another trick I wanted to mention is something I discovered last night: I did an impromptu water filter by putting an ice cube and some water in my mouth while hitting the UD. With the right mouth placement, I got it to make a bubbling sound, and the vapor felt a lot cooler as well. Obviously, this trick isnt really necessary for those of you who have actual bubblers, but I thought it was a good way for people who don't have bubblers to still get cooler vapor.

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Ok, THIS is the video I want to see. Not because I don't believe it, but because it has to be entertaining. Way to improvise, barca14!

Dave, this is the one I'm using: click me

It's pretty heavy, unlike the regular 220V PSUs I've tried so far.

The only other heavy transformers I have are computer PSUs, but I think I need something with a little more volts..

Vaporboxed: I tried the stems and I like them for their tighter fit and because they are a bit firmer, but they don't change the results.

I don't judge vapor density when exhaled but before I inhale when milking up my tube. It's just light blueish and see through where it should be a thick white mist.

cluffy said:

barca14 said:

Another trick I wanted to mention is something I discovered last night: I did an impromptu water filter by putting an ice cube and some water in my mouth while hitting the UD. With the right mouth placement, I got it to make a bubbling sound, and the vapor felt a lot cooler as well. Obviously, this trick isnt really necessary for those of you who have actual bubblers, but I thought it was a good way for people who don't have bubblers to still get cooler vapor.

Click to expand...

Ok, THIS is the video I want to see. Not because I don't believe it, but because it has to be entertaining. Way to improvise, barca14!

Click to expand...

Haha i got the ice cube idea from someone's post in the mflb thread, and i figured adding a little water would make it even better! I'll try to make a video tonight, but don't expect clouds as big as some of the ones other people are posting. I'm still new to vaping, and my lungs arent used to taking huge rips yet. The mouth-bubbler method actually helps though, I still cough after a big hit but it's not nearly as painful as taking a big dry hit.

I got some improvement.

I'm now using the thicker stem, a finer grind, I don't pack, I stir every other hit and I've taken out the 2 meter long extension cord. I've tried 2 different extension cords to rule out the first one had a problem, but I hadn't tried plugging the inverter for the ca directly into the wall socket yet because this means I must sit on the floor next to the wall instead of on the couch.

I still feel like I could use a little more heat, but I now got some golden brown ABV with like 30% darker brown bits in it. This is from the last two bowls, I hope it wasn't just a power surge

OhTheAgony said:

Dave, this is the one I'm using: click me

It's pretty heavy, unlike the regular 220V PSUs I've tried so far.

The only other heavy transformers I have are computer PSUs, but I think I need something with a little more volts..

Vaporboxed: I tried the stems and I like them for their tighter fit and because they are a bit firmer, but they don't change the results.

I don't judge vapor density when exhaled but before I inhale when milking up my tube. It's just light blueish and see through where it should be a thick white mist.

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Thanks OTA, it unfortunately the specs don't state whether or not it's a switching supply but it is over 60% lighter than my standard linear supply so it very well might be a switching one. The problem we run into with switching supplies is sometimes they work and sometimes they don't.. when they don't they just won't get the piece up to temp and instead only get it to about 70-80% instead. You need an old school adapter with a transformer in it but I don't know if those are available over there (I'm sure they must be though). An old style one like that would probably weigh twice what your wall/car one does.

Sounds like one of those old toy-train transformers I posted somewhere in this thread earlier would be perfect then, plus they are variable up to 14,2V (ish)

They aren't made anymore but I'll look around for a used one & check to see what the local electronics store has in stock as well. What's the highest voltage I can use this one on Dave?

OhTheAgony said:

Sounds like one of those old toy-train transformers I posted somewhere in this thread earlier would be perfect then, plus they are variable up to 14,2V (ish)

They aren't made anymore but I'll look around for a used one & check to see what the local electronics store has in stock as well. What's the highest voltage I can use this one on Dave?

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You really don't want to go above 12v unless for a quick turbo boost (for a minute or two) now and then. I would look for something that is 12v DC and 1-2A would be perfect. A heavy duty non-switching power supply is going to be what you want as it's the switching circuitry which is causing you problems right now I'm sure.

I don't think it's the "switching circuitry" that causes problems. 12VDC is 12VDC. The question is whether a power supply is actually putting out 12V. Unlike switchmode power supplies, transformers sag under load, so they are rated accordingly. This means that at anything below full load, they will be outputting a higher voltage. For example, I use a transformer rated at 12VDC but when I measure it with no load using a voltmeter, it is putting out 17V.

hazy said:

I don't think it's the "switching circuitry" that causes problems. 12VDC is 12VDC. The question is whether a power supply is actually putting out 12V. Unlike switchmode power supplies, transformers sag under load, so they are rated accordingly. This means that at anything below full load, they will be outputting a higher voltage. For example, I use a transformer rated at 12VDC but when I measure it with no load using a voltmeter, it is putting out 17V.

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Hey Hazy - I'm not an EE (electrical engineer) so I can't really argue the technical stuff to much of an extent, I'm just relaying what the EEs at Jameco suggested to me when I was dealing with so many of the b-day vape power supplies failing (I had just changed to switching supplies). I was told that sometimes switching supplies have a hard time with certain loads (like low resistance ones in log vapes) and won't always reliably be able to manage how much power deliver to them.. so one minute it might be 20% power, then 100%, then 60%, etc. In the log vape this results in an underheated piece that is hot but not vaping hot.

Anyways, again, just relaying their info for why I had 50 power supplies that wouldn't work with my UDs.. sigh.

Unregulated supplies like you said do have a higher than stated voltage when not under a full load but an UD is usually plenty to bring them into spec'd voltage.. at least all the ones I've used to date.

That's a new one to me. I would have thought that a resistor would be an easy load for a switchmode power supply. I'm no EE either, but I've got a friend who is, so I'll have to ask him about it.

After Feb 15, will there be an update to the catalogue on the Underdog website, please?

I'm wondering if there will be UDs available in single wood form at around the $180 - $200 mark?

Also, sorry if this has already been shown, but are there any pics of the new solid heating core?
The old heating core looked pretty amazing, IMO.
So it would be nice to see what modifications have been made for the new series.

I climbed on my bicycle today to conquer the snow and make my way to the electronic store to pick up an unswitched 12V DC PSU, but according to the guy that works there the one I use with my car adapter is already unswitched and there wouldn't be anything to gain from getting another one really.

I think my pup is working fine now though, it just doesn't entirely perform like I expected it would from what I've gathered from this thread before I got it.

I picked up a higher quality strain that's better dried out than what I had before, fine-tuned the screen a little more this morning, and if I use it straight from the wall-socket and let it heat up for at least a full hour I can get 5 or 6 dense clouds from just a little bit (I estimate a 0,065 gram) of finely ground weed which are all very satisfying. I just wish it ran a little hotter so it would extract all the goodies from my weed like my Solo does, I still have a hard time getting the ABV to a darker brown.

But I'm done fiddling for now. Today I am just going to use the little pup for what it was made for. Perhaps I can perfect my technique some more to improve extraction. I'm still not talking about taste yet btw, I got a serious flu now and I pretty much can't taste anything anymore so I've put that on hold for the time being. I can still sense the walnut oil is still around but it doesn't really bother me at the moment, so I just want to stay on a high enough level to not be aware I am sick so much atm.

hazy said:

That's a new one to me. I would have thought that a resistor would be an easy load for a switchmode power supply. I'm no EE either, but I've got a friend who is, so I'll have to ask him about it.

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Yeah it was new to me too.. and an expensive lesson learned. In the end they just said there was probably some kind of issue between the switching and this particular load which I guess to the power supply looks almost like a dead short.

@ Vapemeister - Yes I will be adding pieces back to the website after returning on Feb 15th, not sure yet but there might be a couple in that price range too. Won't know for sure until I get back and look. Also I won't be releasing any more pictures of the core design since it is for all intents and purposes almost the same as the ones I've already posted. So are you still interested in an UD Vapemeister? I'd heard that you were buying a Zap instead? What happened?

@ OTA - Dang dude that sucks that your cold is turning into Flu.. gaaah! Hope you feel better soon and are able to keep playing with your dog until it works for you how you've seen that it should work, ie Foggy Clouds of Goodness.

OTA what temp on the solo are you trying to get the ABV?

I only ask because with my solos I had darker and crispier ABV than any other vape ever if I used the higher settings. That being said it was BLACK and disgusting. I really think it was from the bud touching the bowl and actually scorching. I found the solo ABV to be REALLY disgusting at anything above say 4 out of 7.

I'm wondering if you have the tools to try to make a batch of qwiso or something with your underdog ABV to see how much is REALLY left in that bud. My ABV is generally lighter in my UD than other vapes I've used, but I tend to leave bigger bowls anyway.

Quick question Dave (or anyone who knows), will the extension cord you have for sale work for other logs? And is there anyway to get one that is 10-15 ' in length?

Edit* Vapemeister, just pick one already. You will be happy with whatever one you choose.

Magic9 said:

Quick question Dave (or anyone who knows), will the extension cord you have for sale work for other logs? And is there anyway to get one that is 10-15 ' in length?

Edit* Vapemeister, just pick one already. You will be happy with whatever one you choose.

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Hey Magic, the extension I have should work just fine with the other logs.. as I believe they all use a 2.1mm plug, that's the important part. I have extensions in 30' and also 15' but I don't think the 15' has been added to the website yet.. I'll add it when I get back though, I think it's a few bucks less than the 30' one.

underdog said:

Magic9 said:

Quick question Dave (or anyone who knows), will the extension cord you have for sale work for other logs? And is there anyway to get one that is 10-15 ' in length?

Edit* Vapemeister, just pick one already. You will be happy with whatever one you choose.

Click to expand...

Hey Magic, the extension I have should work just fine with the other logs.. as I believe they all use a 2.1mm plug, that's the important part. I have extensions in 30' and also 15' but I don't think the 15' has been added to the website yet.. I'll add it when I get back though, I think it's a few bucks less than the 30' one.

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Awesome. The site only has the 30' listed and it's a little too long for me. The 15' would be perfect though. I'll check back and place an order for two in a few weeks. I'm in no rush so whenever is fine with me. Thanks!

Someone mentioned earlier in this thread a standard H20 vapor-whip adapter works perfectly with UD stems, but those adapters vary a bit.

There's two* different ones on puffitup, of varying prices, do you think they'd work with UD stem? Just from eyeballing them, it SEEMS like the SSV might not work too well with it but the other would, but some confirmation would be awesome before buying one.

(had the arizer adapter listed but forgot its 18mm so nvm)

hot box vaporizer adapter, most expensive


And then the ssv adapter


(and just in case heres the PIU link to all the adaptors)