SXmini M Class (TEMP CONTROL)

[Bikenstein]

2leggs, I am using 20J when using 26ga due to the thicker wire. With 28ga I like 14J. Right now I am using about 80%VG and I am reaching my temp at 415F. My calculated resistance is at .070 ohms. With the thicker wire I am now setting the Joules first to 20J and the temperature real high, around 500 and see how high the temperature will settle in when firing it, and then I change it to that temperature.

My current wire is a twisted 26ga NI200 with 18ga Kanthal on my Lemo 2. The vape is just incredible in flavor and hugh cloud production. Since I changed the drip tip from the supplied massive tip to the tip from my original Lemo, the flavor is perfect. It used to take around 4 seconds to heat that coil up when I had it secured in the post holes, but I since cut them shorter and managed to wrap them around the screws and that brought down the resistance and also the ramp up time due to the long legs. Much better combination. No more long legs for me with NI200 or else the ramp up is just too much waiting time.

Thanks for that info on the post holes versus the screw heads. I set my joules similar to you to correspond with the temp setting so the mod doesn't have to work hard at keepin a steady temp. You would think that Busardo would have known not to run at 50 joules. But I think we will see better TC reviews from him as he learns more about these.

 

[jstrong]

When adding juice to the Lemo 2 I have not had any leakage as long as I fill the tank when horizontal, close off the air intake, and use a fill nozzle that fits into the opening and goes down close to where it touches the chimney. I also ensure that I keep the nozzle to one side so there is room for air to escape. With 100% VG you just have to take it slow and ensure that it doesn't jell up on the opening preventing the air to escape otherwise it will run over for sure. With higher PG juice, it works very easily. The top fill is a very nice feature and one that will high on my list for future tanks.

That is how I have been filling mine as well. I think my o ring was slightly off because I cleaned the tank and let it air dry. Other then that I hate that my finish is messed up on a 2 day old mod

 

[JimScotty0]

Thanks for that info on the post holes versus the screw heads. I set my joules similar to you to correspond with the temp setting so the mod doesn't have to work hard at keepin a steady temp. You would think that Busardo would have known not to run at 50 joules. But I think we will see better TC reviews from him as he learns more about these.

Exactly Bikenstein! I really enjoy watching PB's videos, but when I watched it I already had my SXM for about 2 weeks and I was cringing while watching his video on the SXM. I think he did a big disservice running it so high in Joules with his testing. I think most reviewers just push the mods to their upper limits during their testing because one of the selling features of a mod is how high a power setting it will go. That may work well for testing the limits of a non TL mod running in Wattage, but for TL it isn't all about how much power you put to the coil. I think it is good that the SXM can be set at 50J so we have some more tolerance and not have to run your mod at the maximum, but my experience when running that high is unacceptable and unpleasant vaping.

BTW... I know we all use different terms such as TL (temperature limiting) and TC (temperature control), but Yihi using the term TS (temperature sensing) on their documentation which I think is a more accurate description of what the SXM is actually doing.

 

[Bikenstein]

I could be wrong but it seems that it's actually sensing resistance changes in the coil to translate to a temp reading and controlling the temp by maintaining the preset value. That's why TC seems more appropriate to me or TL

 

[Sgt. Pepper]

Exactly Bikenstein! I really enjoy watching PB's videos, but when I watched it I already had my SXM for about 2 weeks and I was cringing while watching his video on the SXM. I think he did a big disservice running it so high in Joules with his testing. I think most reviewers just push the mods to their upper limits during their testing because one of the selling features of a mod is how high a power setting it will go. That may work well for testing the limits of a non TL mod running in Wattage, but for TL it isn't all about how much power you put to the coil. I think it is good that the SXM can be set at 50J so we have some more tolerance and not have to run your mod at the maximum, but my experience when running that high is unacceptable and unpleasant vaping.

BTW... I know we all use different terms such as TL (temperature limiting) and TC (temperature control), but Yihi using the term TS (temperature sensing) on their documentation which I think is a more accurate description of what the SXM is actually doing.

agree completely. running my sx at 20J with 26gauge and a coil at .058. really nice vape.

 

[2legsshrt]

How do I tell if I have the older or newer ST Mini? I have one in a box (with an extra tank) that I just received from a co-op.

That's the older they quit putting the extra tank in.

 

[Bikenstein]

That's the older they quit putting the extra tank in.

Is the new one an upgrade?
ETA: Anybody done a Ni build in the STM?

 

[TheotherSteveS]

Is the new one an upgrade?
ETA: Anybody done a Ni build in the STM?

it has an extra air slot on the afc as I said, so like your photo but on both sides of the tank!

Ni build on STM

twisted 30g hardened Ni200 - 5 wraps on 2.5mm came out to 0.08 or so. From here just pulled the wicks up through the chimney and screwed it down. Cut about 2mm above the chimney top (without the lid!) and push back down to the base. Juice it up, screw on the lid and good to go. 15J, 400F - lovely vape with MBV hawk sauce at 80:20 VGG.

 

[dr g]

Exactly Bikenstein! I really enjoy watching PB's videos, but when I watched it I already had my SXM for about 2 weeks and I was cringing while watching his video on the SXM. I think he did a big disservice running it so high in Joules with his testing. I think most reviewers just push the mods to their upper limits during their testing because one of the selling features of a mod is how high a power setting it will go. That may work well for testing the limits of a non TL mod running in Wattage, but for TL it isn't all about how much power you put to the coil. I think it is good that the SXM can be set at 50J so we have some more tolerance and not have to run your mod at the maximum, but my experience when running that high is unacceptable and unpleasant vaping.

BTW... I know we all use different terms such as TL (temperature limiting) and TC (temperature control), but Yihi using the term TS (temperature sensing) on their documentation which I think is a more accurate description of what the SXM is actually doing.

Proper temperature control should work regardless of power setting. So busardo was correct to test it. If you can overdrive it, that's a fail. And that is one of the areas the SX J board fails, but busardo did not call it out as the failure it is.

 

[Bikenstein]

it has an extra air slot on the afc as I said, so like your photo but on both sides of the tank!

Ni build on STM
View attachment 456086

twisted 30g hardened Ni200 - 5 wraps on 2.5mm came out to 0.08 or so. From here just pulled the wicks up through the chimney and screwed it down. Cut about 2mm above the chimney top (without the lid!) and push back down to the base. Juice it up, screw on the lid and good to go. 15J, 400F - lovely vape with MBV hawk sauce at 80:20 VGG.

Thanks for the pic and info on your build. I don't know how you could know what's on the other side of my tank from the photo but I guarantee you their is another slot. Dual AFC ports. I think my cruise control on my wife's SUV is faulty. You can set it at 70 and it stays around 70 but it won't hold it there if you mash the pedal. It will keep gaining speed until it gets over a hundred!

 

[TheotherSteveS]

Thanks for the pic and info on your build. I don't know how you could know what's on the other side of my tank from the photo but I guarantee you their is another slot. Dual AFC ports. I think my cruise control on my wife's SUV is faulty. You can set it at 70 and it stays around 70 but it won't hold it there if you mash the pedal. It will keep gaining speed until it gets over a hundred!

sorry, i thought you had said earlier it only had one. Do you have a spare glass tank tube then? I think there were a couple of iterations with the stm none of them advertised! Anyway, i think its probs the latest or near latest version

 

[JimScotty0]

Proper temperature control should work regardless of power setting. So busardo was correct to test it. If you can overdrive it, that's a fail. And that is one of the areas the SX J board fails, but busardo did not call it out as the failure it is.

But Yihi is not stating that the SXM does temperature control, it states the device does "Temperature Limiting which provides intelligent power regulation" which is not the same thing as Temperature Control. The chip determines the temperature based on the calculated resistance of NI200 wire characteristics. I don't know of anything that does actual temperature control which would need an accurate way of reading the actual temperature of the coil, or even better of the ejuice.

Their chip is designed to maintain a constant power to the coil to maintain the same resistance it has calculated out to reach a set temperature based on their calculations. Regulating the Joules setting gives the unit more power to achieve a higher temperature achievement.

SXmini M Class manufacturers,SXmini M Class exporters,SXmini M Class suppliers,SXmini M Class OEM service.

 

[2legsshrt]

Is the new one an upgrade?
ETA: Anybody done a Ni build in the STM?

Thats all I use with the nickel works well. I don't know how the new ones are as far as air flow but I was more than happy with the old. I ordered 2 more so I could have them built with NI200 for different flavors.

 

[Bikenstein]

sorry, i thought you had said earlier it only had one. Do you have a spare glass tank tube then? I think there were a couple of iterations with the stm none of them advertised! Anyway, i think its probs the latest or near latest version

Yeah, spare glass, O-rings , coil, cotton, screwdriver. I just haven't decided to keep it or go with another Lemo 2 or Delta 2.

 

[a tez]

But Yihi is not stating that the SXM does temperature control, it states the device does temperature sensing which is not the same thing.

SXmini M Class manufacturers,SXmini M Class exporters,SXmini M Class suppliers,SXmini M Class OEM service.

The device is powered by the YiHi SX350J with Temperature Limiting which provides intelligent power regulation.

If it was just sensing, it would only tell you the temperature. The SX350J doesn't let the user pass a temp they set (or at least doesn't pass it by much in my experience).

 

[JimScotty0]

SXmini M Class manufacturers,SXmini M Class exporters,SXmini M Class suppliers,SXmini M Class OEM service.



If it was just sensing, it would only tell you the temperature. The SX350J doesn't let the user pass a temp they set (or at least doesn't pass it by much in my experience).

I corrected my statement after reading again the Yihi SXM website. Yes they are calling it Temperature Limiting.

 

[dr g]

But Yihi is not stating that the SXM does temperature control, it states the device does "Temperature Limiting which provides intelligent power regulation" which is not the same thing as Temperature Control. The chip determines the temperature based on the calculated resistance of NI200 wire characteristics. I don't know of anything that does actual temperature control which would need an accurate way of reading the actual temperature of the coil, or even better of the ejuice.

Their chip is designed to maintain a constant power to the coil to maintain the same resistance it has calculated out to reach a set temperature based on their calculations. Regulating the Joules setting gives the unit more power to achieve a higher temperature achievement.

SXmini M Class manufacturers,SXmini M Class exporters,SXmini M Class suppliers,SXmini M Class OEM service.

Right, I'm using the term in the manner it is used in colloquial discussion in this forum. Such as in the name of the forum. And in YiHi's collateral:

Though personally I think temperature protecting/limiting mods do in fact do temperature control.

Semantic dodges aside, if you can overdrive the temperature setting with more power, the temperature control, limit, or protection is failing.

 

[JimScotty0]

Right, I'm using the term in the manner it is used in colloquial discussion in this forum. Such as in the name of the forum.
Though personally I think temperature protecting/limiting mods do in fact do temperature control.

Well if you set your temperature to say 480F but don't give it enough power to achieve that temperature setting you will not be controlling the temperature at all unless the device will be able to give the coil enough power to do so. It will just do its best to get to that temperature. If you give the SXM enough power to reach your set power it will effectively maintain that temperature to the coil based on the calculated resistance of the NI200 wire which then performs the necessary adjustments to maintain temperature. Isn't that temperature limiting? Maybe semantics but in effect it does maintain a consistent voltage to the coil as the resistance changes due to heating.

In effect it works just like what it states and in my experience it does just that.

 

[Bikenstein]

If you can set the applied power to it in a reasonable range in relation to the temp setting, it will control the temp. It does control it. I know this because I've ran wicks completely dry without burning them so that leads me to believe what I see happening on the screen. That plus the quality of the vape. The AC in my house works but if it's 100 degrees outside and I open all the doors and windows it will fail to do it's job. That's not a fail on Carrier but more of stupidity on me.

 

[JimScotty0]

Right, I'm using the term in the manner it is used in colloquial discussion in this forum. Such as in the name of the forum. And in YiHi's collateral:

Though personally I think temperature protecting/limiting mods do in fact do temperature control.

Semantic dodges aside, if you can overdrive the temperature setting with more power, the temperature control, limit, or protection is failing.

With the SXM you could attempt to overdrive the temperature setting by giving it too much power. That is why you would then see fluctuations as high as 30F as it tries to limit the temperature to what you set the device. If you give it the right amount of power then it is smoothly achieving the set temperature and not fighting to keep it lowered. What you might be asking for is a governor to keep the power lower even if you set it higher when you set a temperature. The SXM doesn't do that but instead will do its best to throttle the higher than necessary Joules setting that was chosen. This device isn't totally automatic and does require some manual adjustments to make it perform. They do say that the "SXMini is designed specially for professional and high end vapers" so their statement is correct. Not everything is done for you in an automatic mode, but when you get the feel for the device and how it works you will achieve temperature limiting to your liking.