Precision juice injection drop by drop

[TWalker]

I would really like to see a new category in the mods strictly devoted to juice injection since that is the direction so many of us are going. But...

My opinion on injection of juice is the biggest problem is flooding. While we can get the juice from point A to B even the best ones built so far can and will flood due to a lack of control over the fluid.

So for weeks I was obsessed with solving this and I knew I wanted to figure out how I could feed exactly 2-3 drops per injection. My solution was to build a screw syringe. Google screw syringe and you will see what one is.

I attached a nylon screw with a thumbwheel head to a syringe and it performs. Turn the wheel and a precise amount feeds into the cartridge.

I don't like the length needed for this particular mod but they can be made shorter.

When I have a good idea I like to hold onto it until it is perfected but this particular one is really good and others could add to it.

I also went back for the past couple weeks to squeeze bottle designs due to length constrictions for a reasonably sized PV and have an almost complete juice pipe about as long as a Chuck but bigger around.

So tell me your precision juicer ideas or add to mine.

 

[Darchand]

Not that I have any new or great ideas but I thought I would chime in and say you have a great idea there. btw what part of NM are you from?

 

[TWalker]

Ruidoso

High altitude, very near heaven if you have ever seen it.

 

[Darchand]

Yes in fact I live in Clovis NM have some family in Ruidoso and travel to Las Cruces all the time. I have also hiked up in Cloudcroft which is just a very beautiful place. Nice to know I am not the only one from NM around here.

 

[TWalker]

Yes in fact I live in Clovis NM have some family in Ruidoso and travel to Las Cruces all the time. I have also hiked up in Cloudcroft which is just a very beautiful place. Nice to know I am not the only one from NM around here.

Yea we vape up here in the clouds too.

Good to see you here.

 

[LukeNM]

Gald to see you NM people trying to improve PV's...

 

[petercro]

I Agree (juice injection) as another category is a great idea.

After checking out screw syringes, a few ideas came to mind.
If a Y tube were fitted. One would feed to the atty and one to a valve.
The valve would stop the flow of liquid. But if the attys tube were blocked and the
screw syringe were reversed, it would suck any attached liquid through the valve
and refill the syringe.

If the thumb screw also had a ratchet type sound, a number of clicks could
refer to a number drops, depending on viscosity of liquid (PG or VG).

 

[TWalker]

I Agree (juice injection) as another category is a great idea.

After checking out screw syringes, a few ideas came to mind.
If a Y tube were fitted. One would feed to the atty and one to a valve.
The valve would stop the flow of liquid. But if the attys tube were blocked and the
screw syringe were reversed, it would suck any attached liquid through the valve
and refill the syringe.

If the thumb screw also had a ratchet type sound, a number of clicks could
refer to a number drops, depending on viscosity of liquid (PG or VG).

Ratcheting is not a bad idea. My prototype puts out 3 drops per half turn so I know how much to turn it. It doesn't change it is mechanically accurate each time because of the syringe. That is as near as I have gotten to perfect juice feed.

I'm glad you chimed in because anyone who is successfully injecting juice in a sinle unit like you are really the ones I watch and want to collaborate with. There are exceptions like ScottBee who make injecting from a separate bottle really damn interesting though.

Thanks

 

[petercro]

TWalker
Thanks for the vote of confidence

I don't like the length needed for this particular mod but they can be made shorter.

I have trying to workout a way of shortening the syringes' length and still do the same job while holding a good amount of liquid.
Have you had any thoughts.

 

[Ralph T]

Gald to see you NM people trying to improve PV's...

+1... I'm in.

 

[TWalker]

TWalker
Thanks for the vote of confidence


I have trying to workout a way of shortening the syringes' length and still do the same job while holding a good amount of liquid.
Have you had any thoughts.

I have a whole bunch but I'm running short on time. Look at the insides of tube of chapstick or a stick deodorant.

I'll share more later.

 

[petercro]

One might say that great minds think alike.
Just yesterday morning I was looking inside a glue stick and trying to work out how to
make it water tight.

 

[TWalker]

One might say that great minds think alike.
Just yesterday morning I was looking inside a glue stick and trying to work out how to
make it water tight.

yup glue stick same thing

 

[MrPuff]

I like the idea of a screw syringe, it would be unmatched in precision, but one thing I don't like is there is no reverse suction to return excess fluid back to the reserve. The squeeze bottles have a nice way of doing that naturally. That said with proper use there would be no excess to drain off when using the screw syringe.

 

[kai kane]

I like the idea of a screw syringe, it would be unmatched in precision, but one thing I don't like is there is no reverse suction to return excess fluid back to the reserve. The squeeze bottles have a nice way of doing that naturally. That said with proper use there would be no excess to drain off when using the screw syringe.

little time here to post right now - but I am defintely seeing the sign of the "100th monkey effect" here (and i am one of those 100 monkeys! ) everyone is thinking very much the same and discovering it after fact!

playing with same idea last couple weeks - the problem i see with all these 'inject/return' or 'flush' designs is potential contamination of clean juice by elements being sucked back into the bottle/syringe. Been looking at Y junctures with one-way ball-check valves, with one leg directing overflow to a small .5 ml "overflow reservoir", or sponge or other absorbent. Adds complexity and bulk and maintenance issues at a minimum.

What (saliva, coil-crust, tiny particles of 'glass' wick?) might return to supply vessel in a system like the JB???? Major safety freak here . . .

 

[petercro]

Kauai Kai
What (saliva, coil-crust, tiny particles of 'glass' wick?) might return to supply vessel in a system like the JB???? Major safety freak here . . .

All I can say is that they are my (saliva, coil-crust and tiny particles of 'glass' wick?)
And if the (saliva, coil-crust, tiny particles of 'glass' wick?) are not blocking the atty, it
only makes for a better vape.
Will just clean out bottle before refilling.

 

[MastiffMike]

And wouldn't those same items be part of regular "stock" vaping anyway? I agree minimizing extra bits would be nice, but I don't know if it's worth the bother if it's going to add 60% to the size (and more daily maintainance).

Just my $.01

 

[kai kane]

And wouldn't those same items be part of regular "stock" vaping anyway? I agree minimizing extra bits would be nice, but I don't know if it's worth the bother if it's going to add 60% to the size (and more daily maintainance).

Just my $.01

Dood point you guys! we're vaping that stuff anyway! proper maintenace is the issue, in either case - as Petercro stated.

THANKS. even tho it sounds a little
kai

 

[Lab]

what you need is a pipette they cost a lot though 135$-350 then you can just dial in the amount of liquid you want to pick up each time and push the button..

 

[TWalker]

what you need is a pipette they cost a lot though 135$-350 then you can just dial in the amount of liquid you want to pick up each time and push the button..

I've seen those can't remember what they call them. It is not a simple pipette though I can get plastic pipettes for 35 cents.

I think you are referring to a PD pipette.