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I would say the base model plus a battery pack would probably be just fine for that. You still get a choice of screen color (red, blue or green) and case color (clear, red, and foggy blue are in stock) If you wanted the next step up from that, I'd suggest the vernier model, main advantage there...

You basically would need to wire in a potentiometer to replace the small trimmer that's already on the circuit board. It does require you to de-solder that trimmer and solder some wires in place. A 5k multi-turn pot would probably be the easiest option since it should put you in the 0-15v range.

Ah, when I did the power supply / fan controller thing - I was using a spare power supply that was not inside a computer - so I didn't have to worry about messing with my computer or anything like that! If you're considering a board like that, you might as well use the boards that I'm using in...

Hi all, clear blue cases are currently sold out! Somewhat unexpected, but I guess people really like clear blue! I will order more shortly. I'll also take some photos of what these new units in clear blue look like once I've got them all ready. I've got one standard unit, and one "the works"...

I actually did the very same thing before I designed the VK - I used a computer fan controller I had laying around. The only issue was that it really couldn't go much above whatever voltage you fed it. I ended up opening up a computer power supply and adjusting the trimmers inside to bump it up...

That's a neat little pack you've found there. That might work very well in fact. However, it looks like you have to wire parts of it yourself, as it seems like the black/red wires are un-attached. Perhaps you have to choose how you want it setup, parallel, or series, etc. The 3400mah panasonics...

So, the last 3 of the first batch shipped, the one b-stock from that batch and two standard units. And from what I've heard - it sounds like all the ones to be included with HI's have also been either sold or claimed, so they're gone! We're officially onto the second batch. I'm also officially...

Hi all, just a quick update. Running a little behind getting the shipments out, everyone who paid should ship out in the next day or so. I just received the vernier dials today! They work exactly how I described before. The short 10-turn pots also look very promising as well, and I'm still...

Got it! Thanks! I will hopefully get these last 3 units from the first batch shipped out today! The second batch is now ready to order. I've updated the paypal buttons on my site. Ammeters now available! It shouldn't let you order what I don't currently have in stock, I hope anyway! Paypal's...

First batch is officially sold out! I'm still waiting payment on one of the b-stock units that someone claimed a few weeks ago, but otherwise we're officially onto the second batch! I got in the ammeters yesterday but still yet to play with them too much - I still need to get in some more of the...

So far, it's looking like I might even be able to fit it into a smaller case! I'm pretty sure it should all fit into the current size case without issue, using the smaller size 5-turn and 10-turn + vernier multi-turn pots that I have coming. I still have to get in the ammeters and the vernier...

So, they're here! the next batch of cases. So there's a few things going on in this picture. First, on the bottom left, there's a prototype VK from the very first 3 prototypes made in a larger clear case. It's been upgraded to be a prototype for the 10-turn large-size pots, which you can by the...

LOL, I don't know why I didn't think of that. That seems almost too obvious, hah. The only thing about this is that the bottom kif tray isn't that deep, so I can't grind up quite as much, but, that's not the hugest deal in the world since at least i'm getting the kif mixed in now!

hmm, so do they have two-piece grinders that have separate chamber for the grindings, but no kif catcher? I am definitely interested in that idea....sometimes it's nice to use up the kif. I guess you could just rip the screen out of a 3 piece....? though you'd have an extra section that's not...

I currently have 2 clear-top 4 piece grinders, one with my living room setup and the other in my office. One's a sharpstone with the external handle for grinding. It also screws down rather than being magnetic. The other one's a weedstar which is basically a knockoff of the magnetic lid...

Ah, good tip! Thanks for that! So I tried doing that on the cable I had but it didn't work as I expected, I ended up trying another cable I forgot I even had that was a universal charging cable and it actually had a barrel jack (the wrong size of course) on it along with some others. It seems...

So, I did some research for you. I attached a VK to another VK, and I set the first VK to 5v and attached my multimeter in between, measuring the amperage. On the 2nd VK, at around 12v, it was drawing 1.7A@5v. At around 13v, it was around 2A@5v, and at around 14v, it reached 2.4A at 5v, the...

Oh yeah, one other thing I forgot to mention: There might be a 2 week delay on red screens. They ended up sending me ALL blue screens in my last order, which is sort of nice for the opaque-blue and transparent blue cases I ordered, but, not so cool for people who wanted red! I have tons of green...

So, just when I thought I already had enough features as it was, I've found some small little ammeters that I could mount inside the case! Now you too can have an ammeter on your VK in addition to the voltmeter! Like my blue prototype unit above has! Except, it will be a separate little screen...

Some day, I'll have to post a video of my 1-gallon vapor-lung Alan inspired me to make! It's made out of a hard plastic bulk pet food dispenser which you can pull on super hard without collapsing the container. Even better, no tape or special bag attachments needed, you simply screw the top down...