My first micro.

[Primulas]

Not too shabby. The performance is pretty good, though i have had some issues with it firing. It'll fire great then wont. I'll give the RM2 a twist and it will fire again for a couple hits. Seems very inconsistent. My ideas include my batteries being a bit oldish(6+mos. Not sure it they are going.....never have issues with them for cartos...) My other thought was maybe just cause they are 14500's on a mini. Do you guys have major diffrence between your Reo mini and Grand with RM2's?

Maybe i'm looking or excuses to get a grand

Any protips/observations with the RM2's and minis? I'm not sure the resistance on the above coil i believe it's about 11 wraps tho, should be well over 1.0 . Also tried with silica regular 5 wrap coil; same kind of behavior.

PS the mini pictured is JC Okie's beautiful mini she so graciously let me use as a loaner while Rob refits/rebuilds my mini. Thank you JC; you are a Reoville angel!

-Primulas

 

[vang0gh]

Nice looking coil! I could be wrong, I don't have a mini, but I think the RM2 base has to be specifically trimmed to fit in a mini catch cup. If that RM2 hasn't been specifically modified for a mini, that might be your issue.

 

[Vapeaddikt]

Nice job man. The coil looks great for your first one

 

[JC Okie]

It is a milled down RM2 that fits the Mini. Maybe you need a little Noalox on the firing pin. Sometimes intermittent firing means that you need some Noalox to help with conductivity. The little 14500 batteries DO have a much harder time of running low ohms coils. I know that there are enough amps to handle a 1.0 ohm coil....but barely. Maybe a couple more wraps next time....I usually run around 1.3 - 1.5 ohm coils on the Minis. Six months is not that old for batteries....are they AW IMR (orange) batteries? They definitely do the best and especially in a Mini.

EDIT: I should say if that's my RM2 that I sent with the Mini then it's been milled down. If it's your RM2, it still has to have been milled down or it wouldn't be making contact at all....it wouldn't even fit in the well.

Also, I've noticed that sometimes with lower gauge wire 27 AWG or 28 AWG, it needs a tiny bit of time between firing to sort of get caught up or something. I can chain vape with a coil made out of that gauge wire, but every now and then it seems like I need to let it cool a second before firing it bang, bang, bang.

Did you use the coil/wick I had on it when I sent it? Was that acting the same way? Make sure your post screws are screwed in tightly. Sometimes they tend to work themselves loose. Just trying to troubleshoot here.

Jan

 

[redeyedancer]

Great looking coil I think jc is on the right path you should try cleaning your positive contact .

 

[JC Okie]

I cleaned it and filed the tip and put Noalox on it before I sent it.....

 

[Primulas]

A dab of noalox has seemed to work wonders. Didn't file it as it's just a loaner, but re-noaloxing I've been vaping for 30 minutes straight and its been boss. Gawrsh, this thing wrecks a 3ml bottle(more mental Grand prepping.) . Seems markedly better. I'll report back after work tomorrow.

Also, yes they are aw imr batts. Also its 30 awg coil.

Thanks, once again, you guys are awesome.

PS Jan: my REO is in transit. Should have it wed or Thurs. I'll try to get yours out by Friday.

PSS: I'm turning green, time for bed. It appears to be working perfectly now.

-Primulas

 

[JC Okie]

Primulas, just for the record, you absolutely, without a doubt, totally, completely NEED a Grand. Then your little Mini can be your backup because everybody needs a regular mod (Grand) and a backup mod. Then you'll never be in the fix you were in and needing to borrow a backup while yours is in the shop.....Just sayin'..... Besides, if you love your Mini, you would REALLY love a Grand. They're fabulous....and life is short. And the price is about three cartons of cigarettes. Surely since April of 2009 you've saved enough money by being off the stinkies to justify buying yourself a Grand. You'd love it. Need I say more? (Because I will if you need more of a nudge....)

 

[Primulas]

Primulas, just for the record, you absolutely, without a doubt, totally, completely NEED a Grand. Then your little Mini can be your backup because everybody needs a regular mod (Grand) and a backup mod. Then you'll never be in the fix you were in and needing to borrow a backup while yours is in the shop.....Just sayin'..... Besides, if you love your Mini, you would REALLY love a Grand. They're fabulous....and life is short. And the price is about three cartons of cigarettes. Surely since April of 2009 you've saved enough money by being off the stinkies to justify buying yourself a Grand. You'd love it. Need I say more? (Because I will if you need more of a nudge....)

Lol true story. I'm pretty close to pulling the trigger. Unexpected family addition news just set me on the saving path. Also now in the new home purchase market. Kinda already cleared it with the misses tho. With some left over credit card points I can be into a new grand for under 100 out of pocket. If I pack my lunches for a week its more than paid for. . Lol, if I pack them for a couple months the rest of my house dp is also paid. Its not the grand that's expensive, its everything else

-prim

 

[DoogieTony]

Primulas, just for the record, you absolutely, without a doubt, totally, completely NEED a Grand. Then your little Mini can be your backup because everybody needs a regular mod (Grand) and a backup mod. Then you'll never be in the fix you were in and needing to borrow a backup while yours is in the shop.....Just sayin'..... Besides, if you love your Mini, you would REALLY love a Grand. They're fabulous....and life is short. And the price is about three cartons of cigarettes. Surely since April of 2009 you've saved enough money by being off the stinkies to justify buying yourself a Grand. You'd love it. Need I say more? (Because I will if you need more of a nudge....)

Nothing like some good ole' fashioned peer pressure.

 

[Vapeaddikt]

Do it!.......NOW

 

[Matthee]

Yup, the Grand is the best investment and no time will ever be better than now!

 

[FeistyAlice]

What size wire did you use for coil? I have been using 30 ga for a long time on most RBAs. I almost never have post screws loosen. In fact, today I rebuilt RM2 that had micro coil for two months, 30 ga, and scres never loosened despite boiling once a week and every day or two dryburn. I used 28 ga instead. It was harder to crank down the screws using 28 to stay tight. Ivm out, without any tools and just built 28 ga screws may have loosened.

Sent from my SPH-L900 using Tapatalk 4

 

[misenplace101]

I built my first coil 2 says ago and just changed out the cotton... dry burned the coil and now its like new. so easy and great flavor with ease.

 

[Primulas]

UPDATE: Just received my RM2 & mini back from Rob. Noaloxed it up and it is working perfectly. He even milled it so it lines up perfectly on my Reo without messing with O-rings or anything.

Thanks Rob! You are great sir.

Plan on putting in my Grand order this weekend i think. Then it's 2 months of nothing put packing lunches and not spending money

-Primulas

 

[Matthee]

Way to go! Were you buying stinkies you probably would have been in a worse position, in more sense than one.

 

[Primulas]

Hmmmm it's actually still vaping inconsistently. Much more so than JC's loaner i just sent back. It'll hit great then not hit at all. I'll move things around and get 1 more decent hit. It's really strange. Even dry burning the coil seems to go red sometimes quickly and take longer other times.

I roughed/noaloxed the brand new pin. Also removed the spring and cleaned up under there a bit. Seems like i am not getting good connection somewhere? Could be the coil too as i just threw the coil i was using on my loaner onto this RM2. I'll try that today. If not that i'm not sure where to start troubleshooting. Ideas? ::digs out multimeter:: seems like this should help me find out what going on?

-Primulas

 

[eHuman]

Re-tighten your post screws see if that helps.
Check to see if your 510 insulator is worn.
Put a different atty on your REO and see if the problem repeats.

If you have a multi-meter (you do have a multi-meter right?), you can try narrowing down when and more importantly where it is happening.

Check:
Remove atty and voltage check -,+ contacts where the atty screws down. In short burst intervals toggle the switch on and off and see if you get voltage every time.
Remove battery, install atty, Ω check at -, + battery terminals, work the fire button to see if you get atty Ω every time.
Logically work your way around and check any connections to test for good/bad repeatability.

Note: Do not test for resistance on an energized circuit. Your meter inserts voltage in order to test for Ω, a powered circuit at best will return a wrong value, at worst can damage your meter.

 

[Primulas]

Re-tighten your post screws see if that helps.
Check to see if your 510 insulator is worn.
Put a different atty on your REO and see if the problem repeats.

If you have a multi-meter (you do have a multi-meter right?), you can try narrowing down when and more importantly where it is happening.

Check:
Remove atty and voltage check -,+ contacts where the atty screws down. In short burst intervals toggle the switch on and off and see if you get voltage every time.
Remove battery, install atty, Ω check at -, + battery terminals, work the fire button to see if you get atty Ω every time.
Logically work your way around and check any connections to test for good/bad repeatability.

Note: Do not test for resistance on an energized circuit. Your meter inserts voltage in order to test for Ω, a powered circuit at best will return a wrong value, at worst can damage your meter.

Made a new coil, re-tightened screws/posts, and re-wicked and it sees to have been great for the last 10 or so hours on two separate batteries. Also measured my resistance and it's showing at 2ohms both from post to post and RM2 510 connector(i did subtract the MM's latent resistance.)

Seems great after the above changes.

Should the resistance check be the same from posts as on the 510 connector of the RM2? Also can you/anyone post a link to a good guide on overall ecig MM use? I just learned how to check resistance....but i have no clue about the other tests that you suggested.

Also, is 2ohms a good spot for a mini on a 14500? I'd like more vapor production(even though the vapor production and flavor is pretty good here.) If i go with a 1.2ohm setup will i see a significant difference?

Thanks all, vaping great again.

-Primulas

 

[eHuman]

Made a new coil, re-tightened screws/posts, and re-wicked and it sees to have been great for the last 10 or so hours on two separate batteries. Also measured my resistance and it's showing at 2ohms both from post to post and RM2 510 connector(i did subtract the MM's latent resistance.)

Seems great after the above changes.

Should the resistance check be the same from posts as on the 510 connector of the RM2?

Yes you should get virtually identical readings in those two spots

Also can you/anyone post a link to a good guide on overall ecig MM use? I just learned how to check resistance....but i have no clue about the other tests that you suggested.

Also, is 2ohms a good spot for a mini on a 14500?

This entirely depends upon the battery ability (kind of like asking if cars can do 200mph? vs can my do 200mph?) In general IMR batts have a greater safe current discharge rate (C rating) than Li-ion batteries do. If you know exactly what your battery is rated at you can calculate what Ω coil is safe for it. Rather than going into a long teaching on it here, post make and model number, maybe a link to where you bought it and we can determine exactly where your safe ranges are for the battery.

I'd like more vapor production(even though the vapor production and flavor is pretty good here.) If i go with a 1.2ohm setup will i see a significant difference?

Yes, as resistance decreases, current and wattage increase, coil wire temperature increases, vapor production and warmth increase. There is a point where too much of an increase in Amps/wattage/warmth etc is too much for your particular wick and coil and no longer bring a pleasing increase in performance, but instead makes it very unpleasant. If your batteries can handle it, I would start at the half way mark and target 1.6Ω . Keep in mind that we always exchange battery run time for better performance, an acceptable trade in most cases

Thanks all, vaping great again.

-Primulas

It sounds like you have fixed the problem so the other readings really aren't necessary. They were meant to help isolate the source of your issue.

MM use in vaguely general terms:
Take resistances reading across a load (in this case the coil is the load) while power is de-energized. Meter inserts necessary voltage into circuit to determine Ω value.
Take voltage reading across a load to determine how much of the total battery voltage is being use at the load, or across portions of or the whole circuit to determine if there is voltage available in the first place.

Take voltage reading directly from the +/- terminals of the battery and comparing it to a reading taken from both sides of the coil while the circuit is energized (flame on Johnny, i.e. press the fire button during this check) will give you your voltage under load value. You can compare these two values to see how efficient your MOD is, the closer they are to each other the more efficient you PV is. This is a simple circuit, what ever is not being delivered to your atty is due to the resistance of the mod itself including all connections and is wasted energy typically in the form of heat. (Long winded I know.) Taking these reading from time to time can let you know when it is time to clean your switch contacts, 510 connection, etc.

Don't worry about current readings, they can't be taken directly without disconnecting stuff while you are taking the reading, and they can be calculated from voltage/resistance readings accurately enough for our purposes.

In the mean time, post your battery info and we can determine their safe resistance range.