Evolv-ing Thread

[mikepetro]

Hi Dear mikepetro, I was searching today for the boiling points of PG/VG mixtures. I found the %w/w - T chart on a post of yours. I was amazed to find this kind of information on a non official scientific paper. Then I saw your apparatus and vape experiments you do, and I am blown away.... many papers I read on e-cigs have done less experiment variety of work than you do.
Anyway, I am A chemist, working on e-liquid production, and I have started a you tube Chanel about vaping doing some since behind vaping.
Can I use the PG/VG graph boiling/dew point in my next video. Or even mention about your blog? I will leave a link on the description.
You can see our first video on our you tube Chanel. search for the chemist et al. on you tube.

Hope to speak again soon

Nikolas, You are welcome to use any of my material. It was all released under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

[dwcraig1]

 

[tiburonfirst]

Nikolas Papasolomontos take a look at mike's response 2 posts above this one ecf automatically voids any email addresses for security reasons

 

[SlickWilly]

Alright class, everyone quiet down and take your seats. What the heck is going on in here?

What have I missed? Anything exciting? Everyone doing OK?

Man, just when I thought things had calmed down and life was back to normal I had another bad spell that set me on my .... once again. Boy they are right when they say getting old ain't easy, my spine is getting worse and worse, the bad days are getting to be more and more outnumbering the good. Just when we are finally getting some decent weather with so much winter cleanup that needs to be done and we are only weeks away from mowing. The cars need to be brought from winter to summer mode, same with the garden tractor and the shop is a disaster area from winter work. During the winter I'd get a job done, drop everything, shut the lights off and go back inside where it's warm. I have my work cut out for me, not looking forward to it.

 

[BillW50]

Alright class, everyone quiet down and take your seats. What the heck is going on in here?

Well we heard that you were going to be away for awhile and not to worry. And we sat here worrying.

What have I missed? Anything exciting?

Nope, you just missed the tail end of that Billet Box festival. But it kind of died down and we are now cleaning up.

During the winter I'd get a job done, drop everything, shut the lights off and go back inside where it's warm. I have my work cut out for me, not looking forward to it.

You and me both. I heard we are getting 8 inches of new snow tomorrow.

 

[dwcraig1]

My DNA250 RMA board is now ready to start it's journey west.

 

[awsum140]

Getting old is definitely no fun. I used to do actual work, physical labor, all day and never even thought about it. I've been working on the yard, such as it is, for the last few days while the weather has been pretty nice and the old body is telling me it ain't what it used to be, for sure. Advil with water chaser is my nightcap now.

 

[SlickWilly]

Well we heard that you were going to be away for awhile and not to worry. And we sat here worrying.

Nope, you just missed the tail end of that Billet Box festival. But it kind of died down and we are now cleaning up.

You and me both. I heard we are getting 8 inches of new snow tomorrow.

Yeah, I got hit with a double whammy, my back was killing me and on top of it the vertigo/dizzy spells came back, worse than every. This time my vision was so bury and pixelated I had a tough time walking from one room to another without falling over or walking into furniture. It cleared up after a half hour but it's scary crap when it happens, wish they could figure out what causes it. I've slept more in the last week than I have in the last two months, spent more time sleeping than awake but I guess my body needed it. I finally started feeling better yesterday and feel a lot better today. I was ready to start clean up in the shop today but the temp dropped back down into the 30's so I'm going to take it easy and do some light duty inside stuff instead, go back into it real slow and easy.

8 inches of snow! Man that sucks, I need to take the snow blower, weights and chains off the John Deere, get the mower deck prepped and the blades sharpen soon. If I had felt better I'd had it done by now, we "should" be past needed to blow any more snow, at least it won't stay long now with the ground thawed and warmer.

 

[tiburonfirst]

The cars need to be brought from winter to summer mode, same with the garden tractor

my mower knows only one mode and it better keep running on its own!

 

[SlickWilly]

Getting old is definitely no fun. I used to do actual work, physical labor, all day and never even thought about it. I've been working on the yard, such as it is, for the last few days while the weather has been pretty nice and the old body is telling me it ain't what it used to be, for sure. Advil with water chaser is my nightcap now.

I hear ya awsum, I hear ya. Doesn't help being lethargic during the winter, I just hate the snow and cold but I loose a lot of strength from sitting on my .... for months. I guess now I understand why folks walk the malls but I just can't picture myself in that group, yet... My mind thinks I'm still 30, my body tells me I'm a dumb azz and better face reality.

 

[awsum140]

Yeah, I know what you mean...I'm a 25 year old trapped in a 70 year old body! Plus add in the other stuff I've had going on to the winter lethargy and I'm in the worst shape I can remember. I am feeling better as I keep pushing though, so there is a little life left I guess.

 

[SlickWilly]

Yeah, I know what you mean...I'm a 25 year old trapped in a 70 year old body! dd in the other stuff I've had going on to the winter lethargy and I'm in the worst shape I can remember. I am feeling better as I keep pushing though, so there is a little life left I guess.

Yup, we gotta keep on pushing through! Longggg time ago when I gave up drinking I was in a group one day and fellow was talking about some days he just didn't feel like going to meetings, he said "Sometimes I just have to pick up my azz, put it in a sack and go" For some reason that has always stuck with me.

 

[SlickWilly]

I've got a 2nd DNA 200 board that the fire button is going wonky, have to press it hard to get it to fire and sometimes it will make and break connections like rapid fire and go into lock mode. These 200 boards I've had a long time and got a ton of use out of, some of the board have been in more than one mod. I'm wondering if this is a signal of things to come with the rest? I'll pull the boards one of these days, carefully take the switch apart and see if the round domed metal clicker contact piece (what the heck are they called?) is the problem, see if I can't fix them without having to replace the entire switch. The thought of soldering new switches on the board doesn't excite me....

 

[TrollDragon]

I've got a 2nd DNA 200 board that the fire button is going wonky, have to press it hard to get it to fire and sometimes it will make and break connections like rapid fire and go into lock mode. These 200 boards I've had a long time and got a ton of use out of, some of the board have been in more than one mod. I'm wondering if this is a signal of things to come with the rest? I'll pull the boards one of these days, carefully take the switch apart and see if the round domed metal clicker contact piece (what the heck are they called?) is the problem, see if I can't fix them without having to replace the entire switch. The thought of soldering new switches on the board doesn't excite me....

For the time and frustration involved in replacing that dome, I've always found it better just to solder in a new switch.

 

[TrollDragon]

Nope, you just missed the tail end of that Billet Box festival. But it kind of died down and we are now cleaning up.

Did you see the picture robfisher posted in the BB thread? That man has a collection of some of the most gorgeous mods I have ever seen. His Juma DNA 75C's are incredible.

 

[SlickWilly]

For the time and frustration involved in replacing that dome, I've always found it better just to solder in a new switch.

My eyes are not what they use to be and my hands shake, soldering tiny contacts is a challenge for me. But I'd give it a go, I have some old clone boards I could practice on first. What would you suggest for a soldering tip? One wide blade type that will heat both legs on one side at a time? My thought was that a wide blade type tip, file a notch in the center so what's left would only touch both legs, something that would look like a U

 

[TrollDragon]

I have a Donegan OptiVisor so I can see and use a Weller PTR7 tip in my old TCP. It's 700F and has a 1.6mm end for delicate's.

I work the legs free one at a time, being careful not to overheat the board and lift the traces. Then clean it all up with a little drywick after the switch is off. Tin the new switch legs and solder it in place.

We had one of those multileg desoldering tips one place I worked, it was more of a hassle than it was worth. I always just cut the legs off the IC's first with flush cutters then desoldered the pins one at a time.

You might be able to cut the legs off the old switch, depending on how fine your cutters are. That makes it much easier to clean up the pads.

At least they are surface mount and not through hole switches.

 

[SlickWilly]

I have a Donegan OptiVisor so I can see and use a Weller PTR7 tip in my old TCP. It's 700F and has a 1.6mm end for delicate's.

I work the legs free one at a time, being careful not to overheat the board and lift the traces. Then clean it all up with a little drywick after the switch is off. Tin the new switch legs and solder it in place.

We had one of those multileg desoldering tips one place I worked, it was more of a hassle than it was worth. I always just cut the legs off the IC's first with flush cutters then desoldered the pins one at a time.

You might be able to cut the legs off the old switch, depending on how fine your cutters are. That makes it much easier to clean up the pads.

At least they are surface mount and not through hole switches.

Cut the legs off first! Winner winner chicken dinner! Great idea! Why the heck didn't I think of that... Thanks, that tip alone I know will save me a lot of fuss and frustration, getting both legs hot at once to lift one side was what worried me the most. Now I'm not afraid of it, I have one of those huge magnifying lamps and a smaller one mounted right on one of the helping hands. If I can get things set up in the hands so I can rest my forearms while soldering a lot of the hand shaking goes away, I can do this.

I do need to get one of those visor magnify thingies, I know they would help me with a lot of projects. I need to quit putting it off, need to make a decision on which to get and just pull the trigger.

 

[TrollDragon]

Deleted

I worked a few places that had wave soldering. The line girls populated the boards (through hole) from components on tape reels, they had a handle with a button that they would manually move from hole to hole on a steel plate in a specific pattern. All the larger components were hand placed, by girls working from a PCB conveyor, what a monotonous job.

I guess the new pick and place machines can do 140K components per hour per module.

 

[Alexander Mundy]

I carefully crush SMT first then clean it up with an iron. For small components a pair of nippers works good. I have done SC70-X gnats with an old Weller iron and hand sharpened tip but they are a bugger.