@LineTheory if it is not set up with the “arm” coming out of the top I would recommend flipping it. I tried this on my Zeal just to test a temp sensor theory but it will affect the way the head sits on the bowl.
The Screwball by Vapvana
- Thread starter caliganja420
- Start date
2pumpchump
Well-Known Member
I will weigh the gem cuts as I put them in later but I can tell you 4 mm Zr02 to fill it has more weigh !!! 2.5mm gem cut should have about the same weight as 2mm ball
Your heads upside down
This is from my earlier video (I haven't retested the total weight of the gems in the early adopter kits - thanks for reminding me to do that
)The 1.3g difference is equal to about 23 3mm ruby balls
I've been a daily dabber for the past ~8 years, so my goal was to recreate a 'low temp dab' with this device, since there are plenty of options for higher temp vaping - aka 'riding the line'
I made this basic chart to compare the THC dosage of doing a dab of 70% rosin vs 20% flower
For my personal preference - doing a .2 - .4g bowl is a similar amount of THC I'll do in a typical rosin dab.
So when I typically take 1 to 3 dabs per session (~70-200mg of thc), the smaller herb bowls are a limitation to my personal use patterns.
Although I think you may be able to use the ABV color as an indicator for extraction, I think people's personal experiences matter far more.
Coffee Analogy
I also like to use the cup of coffee analogy.Do you try to extract 100% of caffeine from a cup of coffee? When you want more caffeine you typically make another cup - aka pack another bowl.
Cooking Analogy
I want people to have the best experience for their personal preferences - and I think there are multiple ways to cook / heat / roast your herbs.IMO there are two main variables at play - Time & Temperature.
When temperature increases - the time to cook decreases
When temperature decreases - the time to cook increases
In cooking you can choose to flash fry / sear your food - or you can slow roast it.
The goal is to get the internal temperature to a certain point, and I think there are multiple ways for people to achieve this based on their personal preferences and desires.
#TeamLowTemp #SaveTheTerps
I'd like to offer another pre-order for this community at a discounted rate. More info to come once details are worked out after the early adopters round.
Thinks have been a little crazy going through my first international shipping experienceGetting jealous seeing you guys using your Screwball now.
Hopefully Cal gets back to me soon so mine can get on its journey. Got some top shelf products on the way for my first sessions with it. Like a bairn waiting for Christmas here.
I've made a couple mistakes that have delayed things - however I'm gearing up to get the international orders out this week.Once I'm caught up I'll be reaching out to finalize your order plus any other prizes that need to go out.
This device wasn't designed to work as a 'microdoser' or with a thin layer of herb on the bottom of the bowl.
From my testing the bowl works best completely full with ~.4g of ground herb to the top of the bowl. For smaller amounts of herb I've been using 13/16 mesh screens to are slightly bigger than the bowl ID.
You can wedge the screen halfway up the bowl wall to decrease the volume but keep the herb right under the heater. This is a temporary solution to a bowl insert or half sized bowl is made.
I noticed that even having the herb 5mm under the heater will decrease the performance / efficiency.
My Recommendation for Microdosers
Try packing the bowl up to the top (even if it is .2 - .4g of herb)Set the PID from ~400f to 440f (I recommend you try 10f temp difference in that range (400f,410f,420f,430f,440f) Since the temp is lower, it will take more time for you to full vaporize the herb
You don't have to consume the whole bowl in one sitting - instead take as many hits as you'd like and leave the herb in the bowl. Come back to it when you're ready for another dose / sesh etc
Thanks for pointing this out! And glad to see you in here
Going from 20mm to 25mm is over a 50% increase in surface area.
IMO - once you change multiple variables it is no longer a relevant comparison (especially with such a big jump as seen above). So comparing 2.5mm gem cut in a 20mm coil housing is a completely different system than using a 25mm housing.
The goal with the design was to maximize the airflow in other variables so we could have more options with the media variable. IMO there are limitations to each system, whether it is 16mm, 20mm, or 25mm, etc
When the same design was tested with a 16mm coil, the 2.5mm did not perform well at all and that version was scratched after one round of testing.
Welcome to the club!
All the kits came shrink wrapped, so if there are any issues inside the box please message me directly so we can get you sorted out
It seems like your coil may have been assembled incorrectly, if that's the case then I'll send you a video showing you how to change it. However I don't think it should impact the performance.
Closing Thoughts
Thanks for everyones patience, support, questions, etc!
This is the most busy I've been in years, and every day I wake up excited to go build the future for our vaping community. 
In contrast - I'm also extremely disorganized right now, am making mistakes along the way, and could go a better job communicating with everyone.
I promise I'm trying my best, and if you haven't had a good experience for any reason please reach out, I will do what it takes to make things right Once the remaining kits, prizes, orders, etc are squared away I will be able to focus more on making more content and interacting with you all
SixStringToker
Naked member
Just got some weights! I picked a random head from the graveyard to fill with the balls/gems. The "Ball chamber weight" is just the filler, the head itself has been zero'd out. These are all ruby/corundum, including the gems.
Individual ball/gem weight
- 2.5mm gem: 0.017g
- 2.0mm ball: 0.019g
- 3.0mm ball: 0.057g
- 4.0mm ball: 0.133g
Ball chamber weight (filled to rim)
- 2.5mm gem: 11.73g (qty: ~690)
- 2.0mm ball: 10.95g (qty: ~576)
- 3.0mm ball: 10.65g (qty: ~187)
- 4.0mm ball: 9.91g (qty: ~ 75)
feralcomprehension
Qualified Observer
Thank you for explaining this so clearly. DCPID guys be like, "check out my coffee AVB at 48*F!"
SixStringToker
Naked member
If that's coming from a coffee snob, we'll have to assume that they're referring to a light roast, tho...Thank you for explaining this so clearly. DCPID guys be like, "check out my coffee AVB at 48*F!"
Heres a quick video trying to show how the scoop is the perfect size. I am clearly not a content creator. I took two hits then snapped a picture then one more hit to finish it off and another pic to show. This is at 425 on a dc pid. I may even drop it down to 410 to see how it does.
LineTheory
Member
Ok I unscrewed the cap and flipped the coil. Some rubies fell out but I think I got them all back in. Thanks!
I've seen others mention that DC PIDs are around ~ 170F lower than other PIDs. I used this temp difference as a reference point to figure out my own sweet spot. So far, it's pretty spot on for me like when someone reports 400F on a DC PID, I usually get similar results adding about 170-180F on top of mine. If I only added 100F, it'll not be enough.Thank you for explaining this so clearly. DCPID guys be like, "check out my coffee AVB at 48*F!"
. This vape def has caught my eye Yeah I just like to point it out because I was using a b1 with a dc pid and its like I always had to asterisk my temperature to explain the disparity between it and everyone else. I do like a dc pid though.If that's coming from a coffee snob, we'll have to assume that they're referring to a light roast, tho...
SixStringToker
Naked member
I bet you can dive into the service menu and reset that offset to 0. Just gotta figure out how to access the menu!
2pumpchump
Well-Known Member
Shit now I'm more confused what pid does the kit come with ?
So hear is what I came up with!
14.35 g ruby 2.5 gem
19.1g 2mm Zr02
10.46g 3.5 mm sic
20.00 g 4mm ZrO2
SixStringToker
Naked member
I believe that it's a Crossing Tech micro controller. I doubt that it has been setup with an offset. It's a common controller that a lot of sellers use and peeps seem to like it.
2pumpchump
Well-Known Member
Doing great as contest winner am running behind as well ..Thanks for everyones patience, support, questions, etc!
In contrast - I'm also extremely disorganized right now, am making mistakes along the way, and could go a better job communicating with everyone.
Once the remaining kits, prizes, orders, etc are squared away I will be able to focus more on making more content and interacting with you all
I believe we have a reported error
... as things will happen lol believe
The more I use this vape the more I love it ...cal was not kidding when he said clean glass after each session.. have to clean my WP more than once a day lol
2pumpchump
Well-Known Member
It seems to be a good pid so far.
What do you mean setup for a offset?
And OK hold power button turns on up temp up down temp down. Press power button 5 times to enter time out setup!
Wile off press and hold temp down button this brings up a setting What is that setting????
SixStringToker
Naked member
I mean that, unlike the DC pid controller, when that one measures 520F, it will likely display 520F rather than some lower temperature offset by a fixed number of degrees.
What sixstringtoker said. So I will set my DC pid to say 410, but if I were to try that on my old cannabis hardware pid I would need it to display like 550 to have the same temperature at the coil. DC just pre-programs theres to display a temperature that they claim is more accurate to the actual air going over the herb as opposed to the temp of the coil.
2pumpchump
Well-Known Member
Thanks for breaking that down. But in either case coil temp and air temperature is not going to be the same on any pid right? Gem power baby was clouding it up at 420 on my pid earlier
RustyOldNail
SEARCH for the treasure...
PIDS like my MaxVapor and Aubers, allow a SETTING on the PID, to set a DELTA, or in simple terms an OFFSET.
To do this properly, you need an ACCURATE way to determine the temperature of the end device. In my case, using a CH DCup w/sapphire dish, the DELTA=DIFFERENCE between the PID, and SURFACE of the sapphire dish is 55f. So I set the PID’s delta setting for -55f, and then when I set the PID for 465f, that’s the temperature of the sapphire’s surface. Doing this for air vapor devices is a lot more work and I don’t bother as getting accurate AIR TEMPS in the actual vapor path requires more expensive equipment then I own.
To do this properly, you need an ACCURATE way to determine the temperature of the end device. In my case, using a CH DCup w/sapphire dish, the DELTA=DIFFERENCE between the PID, and SURFACE of the sapphire dish is 55f. So I set the PID’s delta setting for -55f, and then when I set the PID for 465f, that’s the temperature of the sapphire’s surface. Doing this for air vapor devices is a lot more work and I don’t bother as getting accurate AIR TEMPS in the actual vapor path requires more expensive equipment then I own.
Did a very rough and quick anodizing job. Lost my slab of titanium I use as a cathode and couldn’t find a great replacement. I managed but it didn’t turn out like I was hoping. It’s not terrible but it’s not perfect. I’ll redo it one day.
Raskolnikov
Well-Known Member
Any of the prize draw winners receive their prize yet? My Dyna is coming with my screwball. Thought someone would have had a bong or grinder by now.
I got one of the bong’s but USPS decided I need to wait longer and beat the hell out of the box/glass. Sadly she didn’t make it and I gotta say she looked beautiful even in pieces. Spoke with Cal and he is going to get another one headed this way with the next parts drop/order. I suggested we try UPS since USPS has always been a crap shoot for me with Glass.
Got to enjoy a nice long outdoor session with the screwball last night after doing yard work. I’m finding I like it around 460 with just flower and that I like the results better around 480-500 for twaxing. I really love the flavor I get out of this device but I wish there was an easier way to easily place a screen about halfway up the bowl to microdose.
Got to enjoy a nice long outdoor session with the screwball last night after doing yard work. I’m finding I like it around 460 with just flower and that I like the results better around 480-500 for twaxing. I really love the flavor I get out of this device but I wish there was an easier way to easily place a screen about halfway up the bowl to microdose.
coolbreeze
Well-Known Member
I have received mine (briefcase+kit) and I have been playing around with it. I will share some more thoughts on it as my head clears, but inspired by Cal's temp-stepping method for microdosers I have found that the Screwball works really well at very low temps. ; )