PDIB's Making MODs!

[Alexander Mundy]

Yeah, we have a house built in 1968 which is aluminum wiring. At some point all of the outlets were pigtailed with copper but we had our electrician check all of them and he said they were okay. We then had him instal a new breaker box as it had things like the fridge, stove and drier all on one breaker Also, we have a lot of computer stuff so we have extended the breaker box and ran copper for all our computers. Bottom line hiring a good electrician will save you so much in the long run. I could tell horror stories of the DIY nightmares we saw while looking for a house. *shudders*

Aluminum branch circuit wiring........
Are the junctions at the copper to aluminum connections UL listed for it?
Just a normal wire nut won't do it.

 

[turbocad6]

Another show-off! What is this, a Richard swinging contest?

Seriously, the Woody with the brass-covered dna -- WOW. I doubt I would like the way that feels in my hand, but WOW all the same.

ha, it's show off the chalice on the dibi time

on the reo I was concerned with the feel too but honestly it only added a few mm to the thickness where my palm sits, to tell you the truth it really don't feel much different in my hand. I like this better than the alternative which was to mount it on the bottom and make it much longer, this way really didn't increase the overall size of the mod much at all the dibi on the other hand would really have to be installed at the bottom and the dibi is so sleek that I like it just the way it is

 

[Megan Kogijiki Ratchford]

Aluminum branch circuit wiring........
Are the junctions at the copper to aluminum connections UL listed for it?
Just a normal wire nut won't do it.

Yep. They were done right, thankfully, but our electrician checked every single one just to be sure.

 

[Bimini Twist]

Yep. Noted.

I'll be shipping replacements in a couple days. Waiting for the requests to congeal and wanting to sink that nail in one blow.

Please put me under that hammer blow as well. I'm running the same as SFM right now: 0.4Ω and 0.6Ω with some side button action. And now that I've tasted the BF Koolaid on your wood (NM, not going there).

 

[Bimini Twist]

Oh come on now, I could use that theory to tell people I need to replace the perfectly good wiring in their home every now and again and hire on a lot more crews........or be run out of town on a rail for bilking people.

So my aluminum wiring isn't running out of electrons?

 

[glassgal]

Need more work? Come on down to the Florida beaches. Stuff here corrodes like mad; even high-grade stainless steels turn brown outside. I replaced the panel in a house less than 20 years old a couple of years ago 'cause the bus bars in it looked like hell and some of the breakers constantly needed to be re-seated. I'm seriously thinking that my dibi should never come here.

Actually, it's the humidity. We have 100% humidity outdoors for more than 1/2 the year. If you put a pair of stainless steel pliers outside it starts rusting in less than a week. In a year, the outside of what was solid stainless steel is nearly red powder...

Copper just turns green and flakes off in white crystal chunks. The air is harder on metals than keeping them submerged, because the air also oxidizes.

Living in Florida, I see people replacing their entire electrical wiring quite often....the wires inside insulated wrapping generally doesn't corrode, but ANYTHING exposed does. Heck, everyone around here gets their complete plumbing system redone every 10-20 years. The electrical tends to outlast plumbing tho.

Paradoxically, cars don't seem to rust as fast here as in colder areas... I've heard that was from road salt in the winter.

 

[MasterofNone]

The salt is harsh and unforgiving!
The snow ain't so great either


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[Rictic]

ha, it's show off the chalice on the dibi time

on the reo I was concerned with the feel too but honestly it only added a few mm to the thickness where my palm sits, to tell you the truth it really don't feel much different in my hand. I like this better than the alternative which was to mount it on the bottom and make it much longer, this way really didn't increase the overall size of the mod much at all the dibi on the other hand would really have to be installed at the bottom and the dibi is so sleek that I like it just the way it is

Hey turbo, I'm all about helping out the vaping community. It would be my absolute pleasure to buy a Woodvil and/or dibi and a DNA board, send it to you *return postage included* so you can practice and experiment DNA'ing them. And don't worry about paying me, all you have to do is send it back. No need to thank me

 

[IMEDICx90]

Ok is anyone a metal worker here? I need to remove some stock from my vtr so I can finish the DNA wiring, and I can't figure out how, so if one of you are skilled in this aspect and would PM me, that would be fantastic! Sorry not to hijack, btw peter this dibi is just amazing, I'll probably get rid of my REOs to fund a second one, and maybe get a third.

 

[MasterofNone]

Well if your getting rid of Woodvils PM me


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[Alexander Mundy]

Well pdib challenged me to do the calculations!

Anyone is welcome to double check my math as occasionally I do have a brain fart.

Here are the results:

For the 510 center pin

2.5mm OD
1.4mm ID
13mm length of current path

Area of circle = pi X D

2.5mm circle area is 7.85398 mm^2
1.4mm circle area is 4.39823 mm^2

Remaining area subtracting 1.4mm circle area from 2.5mm circle area = 3.45575mm^2

Resistivity (p) of brass averages 6.8X10E-6 ohm/mm
Resistivity (p) of 304 SS is 6.9X10E-5 ohm/mm

Resistance of a cylinder is ( p X L ) / A

For brass ( 6.8X10E-6 X 13mm ) / 3.45575mm^2 = 2.558X10E-5 ohms = .00002558 ohms
For 304 SS ( 6.9X10E-5 X 13mm ) / 3.45575mm^2 = 2.596X10E-4 ohms = .0002595 ohms

Voltage Drop is E = R X I

For brass at 10A 2.558X10E-5 X 10 = 2.558X10E-4 = .0002558V
For SS at 10A 2.596X10E-4 X 10 = 2.596X10E-3 = .002596V

Difference at 10A = .0023402V

For the central pin:

Major diameter is 4.01mm
Minor diameter is 3.93mm
Average diameter is 3.97mm
Length is 64.75mm

Area of circle = pi X D

3.97mm circle area is 12.47212mm^2

Resistivity (p) of copper averages 1.7X10E-6 ohm/mm
Resistivity (p) of brass averages 6.8X10E-6 ohm/mm

Resistance of a cylinder is ( p X L ) / A

For copper ( 1.7X10E-6 X 64.75mm ) / 12.47212mm^2 = 8.826X10E-6 ohms = .000008826 ohms
For brass ( 6.8X10E-6 X 64.75mm ) / 12.47212mm^2 = 3.530X10E-5 ohms = .00003530 ohms


Voltage Drop is E = R X I

For copper at 10A 8.826X10E-6 X 10 = 8.826X10E-5 = .00008826V
For brass at 10A 3.530X10E-5 X 10 = 3.530X10E-4 = .0003530V

Difference at 10A = .00026474V

Neither the center pin being brass or copper or the 510 being copper or brass makes a hill of beans.
The top plate and the sex screw being copper or aluminum shouldn't either.

It all comes down to clean connections and that darn spring!

 

[supertrunker]

i vape at 18mg because i am paranoid about the electrics here unless i did them myself and for the circuit from the breakers to the lounge (mission control - where HRH and i both run our computers etc) i did.

Takes a lot of sockets to run 2x computers, multiple screens each, printers, external drives, chargers for phones, batteries and whatnot. And she is annoyed the gas bill rose!

Got away from the dentist today with the same number of teeth as when i entered: a quality result!

T

 

[MasterofNone]

https:// [IMG]http://img.tapatalk.c....jpg[/IMG] Sent from my iPhone using Tapatalk

 

[IMEDICx90]

Well if your getting rid of Woodvils PM me


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Nope they are raw finishes one is brushed one is polished.

 

[supertrunker]

For copper at 10A 8.826X10E-6 X 10 = 5.192X10E-5 = .00008826V

This looks like a typo to me.

T

 

[timk]

Well pdib challenged me to do the calculations!

Anyone is welcome to double check my math as occasionally I do have a brain fart.

Here are the results:

For the 510 center pin

2.5mm OD
1.4mm ID
13mm length of current path

Area of circle = pi X D

2.5mm circle area is 7.85398 mm^2
1.4mm circle area is 4.39823 mm^2

Remaining area subtracting 1.4mm circle area from 2.5mm circle area = 3.45575mm^2

Resistivity (p) of brass averages 6.8X10E-6 ohm/mm
Resistivity (p) of 304 SS is 6.9X10E-5 ohm/mm

Resistance of a cylinder is ( p X L ) / A

For brass ( 6.8X10E-6 X 13mm ) / 3.45575mm^2 = 2.558X10E-5 ohms = .00002558 ohms
For 304 SS ( 6.9X10E-5 X 13mm ) / 3.45575mm^2 = 2.596X10E-4 ohms = .0002595 ohms

Voltage Drop is E = R X I

For brass at 10A 2.558X10E-5 X 10 = 2.558X10E-4 = .0002558V
For SS at 10A 2.596X10E-4 X 10 = 2.596X10E-3 = .002596V

Difference at 10A = .0023402V

For the central pin:

Major diameter is 4.01mm
Minor diameter is 3.93mm
Average diameter is 3.97mm
Length is 64.75mm

Area of circle = pi X D

3.97mm circle area is 12.47212mm^2

Resistivity (p) of copper averages 1.7X10E-6 ohm/mm
Resistivity (p) of brass averages 6.8X10E-6 ohm/mm

Resistance of a cylinder is ( p X L ) / A

For copper ( 1.7X10E-6 X 64.75mm ) / 12.47212mm^2 = 8.826X10E-6 ohms = .000008826 ohms
For brass ( 6.8X10E-6 X 64.75mm ) / 12.47212mm^2 = 3.530X10E-5 ohms = .00003530 ohms


Voltage Drop is E = R X I

For copper at 10A 8.826X10E-6 X 10 = 5.192X10E-5 = .00008826V
For brass at 10A 3.530X10E-5 X 10 = 3.530X10E-4 = .0003530V

Difference at 10A = .00026474V

Neither the center pin being brass or copper or the 510 being copper or brass makes a hill of beans.
The top plate and the sex screw being copper or aluminum shouldn't either.

It all comes down to clean connections and that darn spring!

You are seriously an asset to the vapin-geek community! Thank you for your contributions. I love this stuff and know enough to get into trouble haha so thank you! Funny how math can squash suspicion, well for me anyway.

 

[turbocad6]

Well pdib challenged me to do the calculations!

Anyone is welcome to double check my math as occasionally I do have a brain fart.

Here are the results:

For the 510 center pin

2.5mm OD
1.4mm ID
13mm length of current path

Area of circle = pi X D

2.5mm circle area is 7.85398 mm^2
1.4mm circle area is 4.39823 mm^2

Remaining area subtracting 1.4mm circle area from 2.5mm circle area = 3.45575mm^2

Resistivity (p) of brass averages 6.8X10E-6 ohm/mm
Resistivity (p) of 304 SS is 6.9X10E-5 ohm/mm

Resistance of a cylinder is ( p X L ) / A

For brass ( 6.8X10E-6 X 13mm ) / 3.45575mm^2 = 2.558X10E-5 ohms = .00002558 ohms
For 304 SS ( 6.9X10E-5 X 13mm ) / 3.45575mm^2 = 2.596X10E-4 ohms = .0002595 ohms

Voltage Drop is E = R X I

For brass at 10A 2.558X10E-5 X 10 = 2.558X10E-4 = .0002558V
For SS at 10A 2.596X10E-4 X 10 = 2.596X10E-3 = .002596V

Difference at 10A = .0023402V

For the central pin:

Major diameter is 4.01mm
Minor diameter is 3.93mm
Average diameter is 3.97mm
Length is 64.75mm

Area of circle = pi X D

3.97mm circle area is 12.47212mm^2

Resistivity (p) of copper averages 1.7X10E-6 ohm/mm
Resistivity (p) of brass averages 6.8X10E-6 ohm/mm

Resistance of a cylinder is ( p X L ) / A

For copper ( 1.7X10E-6 X 64.75mm ) / 12.47212mm^2 = 8.826X10E-6 ohms = .000008826 ohms
For brass ( 6.8X10E-6 X 64.75mm ) / 12.47212mm^2 = 3.530X10E-5 ohms = .00003530 ohms


Voltage Drop is E = R X I

For copper at 10A 8.826X10E-6 X 10 = 5.192X10E-5 = .00008826V
For brass at 10A 3.530X10E-5 X 10 = 3.530X10E-4 = .0003530V

Difference at 10A = .00026474V

Neither the center pin being brass or copper or the 510 being copper or brass makes a hill of beans.
The top plate and the sex screw being copper or aluminum shouldn't either.

It all comes down to clean connections and that darn spring!

the spring makes a big difference because of the small gauge, once there is more than enough mass then material conductivity means almost nothing. you should do these calculations for all the guys that swear there copper mods hit so much better because there copper

you def hit the nail on the head, the only thing that really matters is the contact points, those are the toll booth and what really determines how much electrons can flow through the circuit, don't matter if it's a 12 lane highway or a 16, the toll booths are what determines how much flow there can be

 

[Alexander Mundy]

For copper at 10A 8.826X10E-6 X 10 = 5.192X10E-5 = .00008826V

This looks like a typo to me.

T

Yep, thanks I corrected it.

 

[paulw2014]

I wonder if anyone from REOville has bought/tried this mod yet?

I've been told that there is a fanatical following of REO so I'm not sure if they are receptive to anything else, haha...

 

[supertrunker]

Doubt it!

T