Notches on an RM2

[The Ocelot]

I got an RM2 off the classies awhile back, but apparently I hadn't used it before or maybe I did, I don't know. I've run into a couple of annoyances with an RM2 and it dawned on me tonight that it must be the same one.

I re-wicked lots of coils yesterday and was switching them around on devices and this one ended up on my Grand. I was getting hardly any vapor. I re-wicked it two more times and may have even built a new coil, still just little puffs. I put in a fresh battery; no change. I put a different RM2 on the Grand and it worked dandy.

I took the good one off and compared the two. The one with little vapor has notches cut across the tiny air hole, uh, "pin(?)" at the bottom. When I see notches, I think of something that needed improved airflow...but, ummm...I...uh

The airflow is fine, just hardly any vapor. As I was pondering the object it occurred to me that it had to be the one that didn't work on my mini and the one that had plumber's tape on the threads when it arrived.

I can't get my head around what to do with this thing. I'm already using the thinnest o-ring.

 

[Paul.K]

Have you tried taking the plumbers tape off?

 

[aushizz]

I was just reading on another thread about someone's posts being loose on their RM2
Just maybe that could be the answer

 

[mackman]

Just a guess without seeing a pic of it but sounds as if you are not getting a good contact with the 510 connector. By plumbers tape is it the white Teflon tape? Another test to determine if your connection is good; does the RM2 wiggle when screwed onto the grand. The RM2 may have faulty 510 threads and that is why there was tape on them when you received it.

 

[The Ocelot]

Have you tried taking the plumbers tape off?

I took the tape off when it first arrived.

I was just reading on another thread about someone's posts being loose on their RM2
Just maybe that could be the answer

It's not the posts. The coil is fine, fires at 1.5Ω. The wick was fine too. At first I thought maybe I had too much cotton in it, so I re-wicked it. I also tried wicking it with rayon. I'll try for pictures.

 

[The Ocelot]

Just a guess without seeing a pic of it but sounds as if you are not getting a good contact with the 510 connector. By plumbers tape is it the white Teflon tape? Another test to determine if your connection is good; does the RM2 wiggle when screwed onto the grand. The RM2 may have faulty 510 threads and that is why there was tape on them when you received it.

It doesn't wiggle, but something isn't working as it should.

The plumber's tape wasn't near the 510 connector. It's been awhile, but I think it was on the threads of the base that the top cap screws onto.

 

[Paul.K]

When (if) you dry burn it does the coil heat up fast or is it slow? You could measure the voltage at the the posts to see if you are getting full voltage to the coils. I'm assuming you have a multimeter.

 

[six]

I'm no RM2 expert... I've been using one for a couple of days...

You mentioned the teflon tape was probably between the base and the cap. That makes me think the previous user might have been trying to get the cap to tighten at a different place. If they wanted the cap to tighten somewhere other than where the threads would naturally tighten at, maybe they were trying to get the air hole in a different spot. Is the air hole in the right spot where it is more or less lined up with the coil?

 

[The Ocelot]

The only thing that appears different from my other ones is this notch cut across the center.

The bottom picture is at an angle. It's not flush, but doesn't stick up as much as it appears.

 

[The Ocelot]

I'm no RM2 expert... I've been using one for a couple of days...

You mentioned the teflon tape was probably between the base and the cap. That makes me think the previous user might have been trying to get the cap to tighten at a different place. If they wanted the cap to tighten somewhere other than where the threads would naturally tighten at, maybe they were trying to get the air hole in a different spot. Is the air hole in the right spot where it is more or less lined up with the coil?

Not at the moment. Lol! You may be right about using the tape to line up the hole, who knows. The notch is what I'm fascinated with. It's only the pin-thingy, it doesn't continue outward to the threads.

 

[six]

That's the same post in the RM1. Does that have a ceramic deck?

 

[The Ocelot]

That's the same post in the RM1. Does that have a ceramic deck?

Okay...

When it didn't work in the mini it occurred to me that it might be an RM1, but I thought it looked different in the pictures. I don't know how to tell if it's ceramic or not, but my guess is you're right about it being an RM1.*

I know it won't work on the mini, but is there something different about building an RM1 that could be the problem? Does it take a thicker o-ring?

Dang it! I've bought 2 Reomizers off the classies and both times the person assured me they were are RM2s. I can't even remember who I bought this one from.

*ETA: Or maybe not.

 

[six]

Okay...

I don't know how to tell if it's ceramic or not, but my guess is you're right about it being an RM1.

I can't answer your other questions (no experience - I honestly just started rebuilding two days ago).. But if the deck is white, it's ceramic. If it's silver, it isn't. The screws in your pic (even though upside down and on the table) look like the screws in my RM2. The center pin, however, looks just like my RM1.

EDIT: Also, my RM2 has some ribs milled in to the cap and my RM1, the cap is smooth.

 

[The Ocelot]

I can't answer your other questions (no experience - I honestly just started rebuilding two days ago).. But if the deck is white, it's ceramic. If it's silver, it isn't. The screws in your pic (even though upside down and on the table) look like the screws in my RM2. The center pin, however, looks just like my RM1.

EDIT: Also, my RM2 has some ribs milled in to the cap and my RM1, the cap is smooth.

Hmmm...

All of my caps have 3 lines milled in the top. All of the decks are (were) white (need cleaning).

 

[six]

Well. Then they are RM2. The ceramic deck is the dead giveaway on that. Not sure why your center pin is different than the current one... Maybe it was an early one from when the RM2s began. ... As to performance, I'll repeat my idea that for whatever reason, the air hole in the side of the cap isn't lining up with your coil. It doesn't have to be dead center but like superX says "anywhere 10 and 2 over the coil". If the airhole isn't right by the coil, it won't operate properly.

 

[The Ocelot]

Well. Then they are RM2. The ceramic deck is the dead giveaway on that. Not sure why your center pin is different than the current one... Maybe it was an early one from when the RM2s began. ... As to performance, I'll repeat my idea that for whatever reason, the air hole in the side of the cap isn't lining up with your coil. It doesn't have to be dead center but like superX says "anywhere 10 and 2 over the coil". If the airhole isn't right by the coil, it won't operate properly.

I'm back to where I was then.

I have 3 other RM2s built and running. The location of the hole on the cap in relation to the coil adds to the performance of the device, but it's not necessary for it to work properly, in my experience.

Thanks for trying.

ETA: I found a blog about disassembling an RM2 from last year. It appears an older version of the RM2 had a notched bottom, so that's not it.

 

[slappy3139]

With the top cap off, does the atty produce adequate vapor?

 

[JimzDogz]

Dang it! I've bought 2 Reomizers off the classies and both times the person assured me they were are RM2s. I can't even remember who I bought this one from.

So, your the one the keeps snapping up all the RM2s off the classifieds. I finally gave up on getting one on the cheap and bought mine from the Reo site. I can't wait for it to arrive.

 

[The Ocelot]

With the top cap off, does the atty produce adequate vapor?

Sorry, I was re-wicking and trying to take pictures. I'm surprised at the little coil. I thought I had ruined it earlier when I forced it into a paper towel covered Beanie Baby to get a picture of the bottom.

I don't know how people get pictures of coils firing in focus without a tripod.

1.5Ω √

Wicked with cotton √

Cotton wetted; coil fired. Couldn't get a picture. There was vapor. I don't know what counts as adequate, but it didn't look weak.

Vaped. Just a little puffs were all I could get. I tried the other RM2 and got normal poofy clouds. Granted the other coil is 1.2Ω, but the 1.5Ω one shouldn't be that wimpy.

Anyway, now that I found the disassembling blog I'm going to take it apart. I like to take things apart.

 

[The Ocelot]

Dang it! I've bought 2 Reomizers off the classies and both times the person assured me they were are RM2s. I can't even remember who I bought this one from.

So, your the one the keeps snapping up all the RM2s off the classifieds. I finally gave up on getting one on the cheap and bought mine from the Reo site. I can't wait for it to arrive.

I've bought two from Reosmods and it looks like I will buy another one. I wanted 4, so each reo would have one.