Mixing small amounts

[oplholik]

I was going to mix some flavoring and some vg along with some Dekang juice that I have to get more vg in the Dekang then add flavoring to make up for the added vg. My problem is,I'm wanting to mix 3ml, and I was going to add 10% vg and start with 10% flavoring. So 10% would be .3ml, I can draw up .3 into the syringe, but realized that there is more than .3ml, counting what is in the tip of the syringe and 18gauge needle. So, my mix is going to be off by .xxml's. Seems this would be a problem even at 5ml's. Hope I'm making sense here, and wondering how you DIY'rs deal with this.
Thanks.

 

[caged]

I've always assumed that the curved tip on the plunger in the syringe accounted for that extra in the tip, but I could easily be wrong. Since I mix larger amounts and use a weak nic base, I don't worry about it.

 

[zoiDman]

Mixing small amounts of e-liquids is kinda a PITA.

One thing that helps is to get a Graduated Cylinder and make a "Ladder Recipe".

You also use the Graduated Cylinder to measure how many drops a given dropper puts out. Then you can use drops instead of ml to do small batches.

Drops are Much easier to use for small amounts.

 

[wizard10000]

What's in the tip of the syringe (and in the needle) stays there for the most part, just like what happens when you hold your thumb over the end of a drinking straw and pull it out of your favorite beverage to dump on your kid sister when your parents aren't looking

Short version, you'll take a little more than .3ml into the syringe but almost all of that will stay there - I don't think the markings on the syringe barrel are accurate enough to make a difference.

At 20 drops per ml one drop is 1% of a 5ml batch - I don't think anyone can use a syringe barrel to measure that accurately anyway

 

[proax9]

I use the 20 drops per ml in my formulas... I know that a drop can vary from bropper to dropper- but it has never caysed a bad batch yet!

 

[Iffy]

Just use the same dropper for the PG, VG and flav. The only diff will be the viscosity. For small batches, it's quite repeatable!

 

[oplholik]

Mixing small amounts of e-Liquids is kinda a PITA.

One thing that helps is to get a Graduated Cylinder and make a "Ladder Recipe".

You also use the Graduated Cylinder to measure how many drops a given dropper puts out. Then you can use drops instead of ml to do small batches.

Drops are Much easier to use for small amounts.

Where did you get the cylinders?

 

[zoiDman]

Here is the link to the picture I posted...

Graduated Cylinders Graduated Cylinders : United Nuclear , Scientific Equipment & Supplies

You can Google Graduated Cylinder and find them many places on the Internet. Amazon, e-Bay, etc.

That company also has a cool Micro set.

Micro Glassware Set Micro Glassware Set : United Nuclear , Scientific Equipment & Supplies

Not sure what I would use it for but Erlenmeyer Flasks are just plain cool. Kinda brings out the Mad Scientist in a Person.