i have a twig, which i am pretty sure dave says doesnt contain the GG. it producs large clouds of vapor, it is durable, its small and portable and it tastes great
GG?
i have a twig, which i am pretty sure dave says doesnt contain the GG. it producs large clouds of vapor, it is durable, its small and portable and it tastes great
Wow - I am thinking of getting into the log vape arena - I like what I read until recently looking through this thread. Can I get some positive light on the UD - I hear that the flavor a log vape offers is fantastic. Personally, from what I read about temperature doesn't bother me. Just looking for some opinions.
Thanks for the link OTH. I don't know if my lack of manual dexterity would be a good for doing that
When deciding to purchase a vape I read other people's opinions. When I decide whether or not I like a vape my experience and preferences take precedence. With that said, I purchased my first UD about 6 months ago and love it so much I purchased a second one a couple of weeks ago. I have found that a VVPS is really necessary for me. Flavor is subjective, but with a VVPS you can get the lower temp high flavor rips easily. If you want to milk out a bong, you can up the voltage and do that also, although higher temp is not as flavorful. What I like about the UD is how consistently easy it is to use. No muss, no fuss, minimal parts to clean. The stems and screens are basically disposable in the sense that anyone can make their own.
I am fairly sensitive and will not use a Solo due to headaches. I have never experienced any negative effects from using a UD. My first UD did have a slight smell from the finish that went away after being on for about 24 hours. This is just my experience, everyone has different needs and preferences. I have also never had any problems with my UD but I am really impressed with what I have read about how Dave takes care of his customers. I am confident that if I did have an issue it would be taken care of.
So my experience with UDs is overwhelmingly positive and my opinion is that they are a top notch vape. (Not that it matters, but I own about 20 others. The only ones I use are the UD, HI, CRZ, occasionally the VXC Cloud, and a Lotus for the rare times I need a portable.)
Thanks man - I really appreciate what you wrote. Silly question - but what is VVPS?
Wow - thats cool. Expensive - but cool...lolVariable Voltage Power Supply.
The supplied power adapter is meant to run the Underdog at the optimal temperature. If you feel like you want the device to get a little hotter, investing in a Variable Volt Power Supply might be something you want to look into. I bought the one in the video from an electronics supply store around Seattle called Vetco. You can find a similar one on amazon.com for about $80. You can also use a tattoo power supply like this one at amazon.com for about $50.
Wow - thats cool. Expensive - but cool...lol
guerilla glue
SM, those are actually all three Variable Voltage PSUs you linked. A tattoo PSU has different connections, more like the socket for a headphone instead of two different connections for the positive and negative wire. They are a lot cheaper as well, you can probably find them from as little as 10 to 15 bucks.
As always I am more than happy to make a vape to any customers preferred specs if they ask, this of course could include not using any adhesives or materials that the customer doesn't want used.
With core / air path design I think one has to first decide whether or not the core should be closed or open.
If it's open you'll have exposure to the heated wood, potential charring, the solder and flux and the metal/plastic power plug assembly.
If it's closed you can eliminate exposure to those materials but at the expense of potential exposure to whatever material is being used to close the core.
In my design I decided I'd rather attempt to seal the core and deal with the potential exposure to the silicone from that little wire gap past the bead. To me that was the lesser of the evils and so that's the design I chose to go with. Of course other people might make a different decision and luckily I can accommodate that choice if requested.
So that's that. This is a design choice I made and I still think it's the better of the options but don't try to force that viewpoint on others. People who disagree are free to buy a different vape or to contact me and have an UD made to their exacting standards as has always been the option. I don't believe there is anything wrong with this approach and as such won't spend any time arguing the merits of one over the other. UD has always been about high quality, handmade, custom vapes that allow the customer to get exactly what they want and will continue to be so.
@ stickstones - (per your comment in the UD thread) as I touched on in some of my posts earlier in this thread I think that one of the important aspects of core design is to decide whether an open core or a closed core is appropriate for the design in question. As a manufacturer I've obviously given this some thought so lets discuss it.
So as to not have to retype what I already wrote I'm copying and pasting my comments from earlier:
With core / air path design I think one has to first decide whether or not the core should be closed or open.
If it's open you'll have exposure to the heated wood, potential charring, the solder and flux and the metal/plastic power plug assembly.
If it's closed you can eliminate exposure to those materials but at the expense of potential exposure to whatever material is being used to close the core.
In my design I decided I'd rather attempt to seal the core and deal with the potential exposure to the silicone from that little wire gap past the bead. To me that was the lesser of the evils and so that's the design I chose to go with. Of course other people might make a different decision and luckily I can accommodate that choice if requested.
I think my earlier comments sum up situation fairly well.
Closed Cores:
- The pros of closing the core are greater ability to control exposure to any undesirable elements, control over the path air takes in the product and even potential performance gains because of the better air control.
Open Cores:
- The cons are increased manufacturing complexity and expense, some design constraints and having to choose a material with which to close the core. The material used to close the core needs to be safe, practical to use, an electrical insulator and able to withstand continuous temperatures in the 400 degree range. For me silicone has been the best material I've found for closing the core as in my mind it meets all those criteria and does a great job in practice.
- The pros of an open core are simplified design and manufacturing, a much easier ability to design a user serviceable vaporizer and no need to find a solution to the problem of how to close a core.
Many types of wood used in Log vapes (including common domestic ones not just exotics) are respiratory irritants and quite a few are outright toxic to varying degrees. There is also the possibility of inhaling charred material and while I don't know the potential concerns of that it doesn't seem like a good thing if it can be avoided. The solder (even lead free) has the potential exposure hazard of various metal toxicities and the flux as well. The metal/plastic power plug assemblies are usually what would be considered "pot metal" and are of unknown alloys and materials made at the lowest possible cost in China which I think is a concern as well.
- The cons are significant design constraints (like having to have an inline power plug and resistor for example), increased difficultly controlling the air path/flow and having to be concerned about multiple material safety issues instead of just one. Exposure to the heated wood, potential charring, the solder and flux and the metal/plastic power plug assembly to me are the primary material safety concerns with this type of core.
It's my belief that a vape core design is a compromise and balancing act between the above pros and cons for both types. For my design (and I'm not saying mine is best) I decided that I was more comfortable with the glass bead/silicone potting and being potentially exposed to the little bit of silicone vs being exposed to the rest of the vape materials in totality. With the open core (and I did experiment with some) I just couldn't get behind the idea that anything coming off any part of the vape and it's materials would just waft right up the core and into my stem. I decided I'd take my chances with the silicone and still think that's the right choice for UD.
::edited to add the following::
The resistor that all log manufacturers use (to my knowledge) is a resistance wire (Nichrome probably) that's wrapped around a ceramic body and then coated with a mineral fire retardant. I don't know that there are any material safety concerns with the resistor but there could be due to potential metal toxicity of Nichrome along with the unknowns of the fire retardant material, I imagine the ceramic itself is probably inert. I doubt that as long as it's intact and not abused the resistor is much of a concern. I do think a screen in the core is good if for no other reason than to help stop any large particulate from escaping the core should the resistor suffer any damage.
it's all about the material? what about when someone's rep gets damaged because another said or implied that the fella is trying to hide something, or that the manufacturer is a bullshiter or didn't follow his design as stated (implying further that he is a bullshiter) or someone said "somebody in the know tells me his product have safety issues" or that dave is into mocking/insulting/belittling people. dave, yeah, that's him, sounds like a right bastard...I have never visited this thread, but I will now. We are not going to allow discussions of conspiracy theories, etc. without warnings or infractions issued. They are unprovable and get us on the wrong track.
This issue is simple and does not need to get emotional or adversarial. It is all about the materials. They are either safe or they are not. Once that is determined, we can all move along and go about vaping from our favorite vapes. And the materials discussion needs to be done in the other thread. We don't want Dave's thread to get bogged down in the back and forth.
How does the glass stem "hash" (if you will) vape? Good clouds? Hows the taste?