The Screwball by Vapvana

Necra

Well-Known Member
Its worth noting that the DC pid has a temperature offset of ~70f. So when users mention going 420f on the provided Crossing PID, it'd be similar to using the DC at 350f
i guess that means when im vaping at 370 that put me around 300 on a DC PID yes i do step the temp up to finish a bowl .. i normal run between 400 to 440 but start a bit lower sometimes when i got something extra tasty in the bowl
 

AussieBattla

New Member

Screwball Starter Kit Update​

Hey y'all! Here is my current plans for the SB Starter Kit.

Goals​

  • Turn the Early Adopters Kit into the SB Starter Kit
    • Make basic changes to the bowl based off of early adopters feedback
  • Focus on making the Starter Kit available ASAP
    • The kits will go on presale once the changes have been finalized and production starts.
    • Kits will be available on our site and recommended vape supples to start.
    • The Presale price will be discounted from the retail price (final pricing still TBD)
    • The goal is to ship kits 4-6 weeks after starting the presale
  • Work on the more advanced accessories for the Deluxe Kit
    • Better lid, stand, glass bowl, mesh screens, etc
    • Collaborations with glass and wood artists

Bowl Changes​

Based off of the early adopters feedback here are the current changes being tested / implemented:
  • Update the handle threading to 10-24 to be compatible with CH Shovelhead handles.
  • Increase the joint length to work better with recessed / dewar joints.
  • Add a second cutout + ledge halfway up the bowl.
new-sb-bowl-mockup.png

(current prototype mockup)

Bowl Sticking Issues​


Some notes about the bowl:
  • IMO, there is a difference between the bowl sticking vs ceasing to the glass joint.
    • IMO, due to the nature of the design (conduction heating), it may not be possible to prevent the joint from sticking 100% of the time.
    • The bowl should be difficult to remove with one hand, but not impossible when using two hands (the older versions would completely cease together and wouldn't come undone until it cooled)
  • The bowl is designed to be kept in the glass joint until you need to empty it.
    • I don't recommend lifting it up to clear your rig.
  • The thickness of your glass joints makes a difference
    • Thinner walled joints are more prone to ceasing
    • The tolerances of glass joints can vary
  • How long you heat the bowl makes a difference
    • The hotter you heat the bowl the more the metal expands increasing the chances of it ceasing
    • What temperature you have on the PID makes a difference
  • I remove the bowl by doing a quarter turn and a lift:
    remove-hot-screwbowl-gif.gif

Deluxe Kit & Accessories​

Here is a little teaser for some accessories that are in the works (I will make a separate thread for vapvana glass collaborations soon)

Glass Bowl by SCC​


Rig Prototypes by GOBs Glass​

I currently have these in hand and are testing them:
IMG-8148.jpg


New Lid Design​

This is a new lid design I had that I'd be curious to get everyone's feedback on.
Screen_Shot_2023-08-20_at_5.28.41_PM.png



It may be hard to tell from just looks, but here are some of the main differences of the SB vs other coil based vapes:

  • The SB uses a 25mm coil instead of a 20mm coil
    • This is over a 50% increase in surface area
      IMG-7374.jpg
  • The SB uses 2.5mm gem cut rubies instead of 3mm balls
    • It holds ~750 2.5mm gem cut rubies (or ~230 3mm balls for volume comparison)
      IMG-8329.jpg
  • The SB uses true hybrid heating
    • This allows for more efficient heating and lower operating temperatures
  • The SB + Bowl is custom designed / machined to work together.
    • I went through ~9 iterations of the bowl to create a more refined experience.
      bowl-lid-prototypes.jpg
  • The SB has a 100 day guarantee and lifetime warranty
    • If you don't like your SB for any reason you can return it for a 100% refund within 100 days, no questions asked.
    • After 100 days, all items in the kit are covered by our lifetime warranty.

Vapvana Team & Stakeholders​

For those that don't know, my name is Cal and I'm the founder and 100% owner of Vapvana.
IMG-8330.jpg

(I'm on the right - picture from when I met my Manufacturer this past May and we took a trip to Stanford University)

I've been working on Vapvana since ~December 2021, and have invested all my savings, thousands of hours, and several pounds of cannabis for testing, in order to bring my dream business / vape to life.

Although I've been approached by investors, I have zero intentions of bringing in outside money. My vision is to have Vapvana as a platform for community members to grow together - without the influence of making decisions purely on profits.

It has been one hell of a journey, with more challenges coming up than expected. I've done my best to work through the obstacles behind the scenes, so once I was happy with the product, it would be worth your time, attention, and $.

I'm grateful for the opportunity to serve this community, and appreciate everyone's patience and understanding as I transition to working on this project full time (and being able to pay myself haha).

Thanks again for everyone who has contributed so far, I have a lot of exciting things in the works for y'all. :rockon:

Cheers,
Cal
Very exciting update, Cal! Those glass pieces look very nice.

Do you know what the updated parts pack for early adopters will consist of? Will we also get further updates in the future?
 

Necra

Well-Known Member
ok so i was able to cram .5 g of ground herb in the bowl .... omg it seamed like the never ending bowl lol
@Chicken No Name what size balls are you runing in the B1 if you dont mind me asking
 
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Raskolnikov

Well-Known Member
Hey Y'all!

Thanks for everyones patience with my lack of updates / communication. I am the process of transitioning to working on this business full time, and will be more active on here moving forward.


I'll make a post once I have a more definitive timeline, I'm currently waiting for an updated bowl prototype to be made and sent for my approval.

The goal is to get the early adopters changes to the bowl approved then move into production. After production starts there will be a presale for the Screwball Starter Kit.

I'm also working on ideas for a deluxe kit and other accessories, that will come soon after the Starter Kit.


The new bowl design addresses this and has a cutout halfway up the bowl.


This is also my preferred method.

Rather than a tamp I use the back of the SQP to level off the top and it naturally pushes / tamps down the herb.

For smaller loads (1 SQP or less) it seems like doing a preheat helps with the vapor production. I personally prefer a full bowl, but have been doing more testing with less amounts to see how the experience varies.


From my testing having the herb closer to the diffuser does help with efficiency. The new bowl should address most of the concerns listed so far.


We are on the same page! Going to post the new bowl mockup in the next post :tup:


@coolbreeze did a great job summarizing my thoughts! Not sure I could have said it better myself :D

Next post will address the issue with the bowl sticking.


Its worth noting that the DC pid has a temperature offset of ~70f. So when users mention going 420f on the provided Crossing PID, it'd be similar to using the DC at 350f


This is what I've noticed too - which is why I've been working with some glass artists to make rigs designed specifically for the SB .


I ended up including free gifts that weren't listed on the bullet points. US orders received a 2nd quality coil and International orders received a 2nd quality scoop.

If any of the early adopters would like one of the other gifts please send me a message. I will include it in your updated parts package.

I also didn't send out prizes with the international orders to minimize the chances of there being an issue with customs. The prizes / extras will be going out with the updated parts (please send me a message if you'd like it sent out sooner).


I'll address this in the next post :rockon:
It’s cool Cal.?I know it will come. I got a seconds scoop. Thanks and I do use your beautiful little SQP to tamp.
Still loving my journey with the Screwball.

ok so i was able to cram .5 g of ground herb in the bowl .... omg it seamed like the never ending bowl lol
@Chicken No Name what size balls are you runing in the B1 if you dont mind me asking
I do that regularly. Just tamp it down and you can get a good bit in there. Screwball just says meh and blasts it.

Apologies for double post. Was trying to edit and quote.
Please merge mods. Thank you.
 

Necra

Well-Known Member
I do that regularly. Just tamp it down and you can get a good bit in there. Screwball just says meh and blasts it.

Apologies for double post. Was trying to edit and quote.
Please merge mods. Thank you.
I am like you I normally put a scoop and mabey a pinch level out hit untapped .. I've if you need more than 1 bowl just pack another one ..
 

Riven

New Member
475-500 for me , lower if i'm doing tasting sessions. I popped the screen out completely and used and old airizer eq mesh bowl just dropped in as a bowl size reduction when i didnt wanna fully load, worked surprising well and was very even roast, if anything a little darker than the same temp with normal bowl.
 

Necra

Well-Known Member
475-500 for me , lower if i'm doing tasting sessions. I popped the screen out completely and used and old airizer eq mesh bowl just dropped in as a bowl size reduction when i didnt wanna fully load, worked surprising well and was very even roast, if anything a little darker than the same temp with normal bowl.
yea Simler with me i run 400 to 440 for flavor i can actley get a nice hit in the 300s on a NON DC PID ... IMO much over 500 and you have to watch not to scorch
 

coolbreeze

Well-Known Member
When I won my prize, Cal seemed unsure whether he'd carry the briefcase. Turns out it's not a bad idea at all! : )
IMG-1640.jpg


I wouldn't have contemplated this otherwise and it seemed kind of silly at the time, but it was really great fun. Now i'm off to find some battery power...
 
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