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Graphs, graphs! Im keeping track of the last 128 temperature readings as there are 128 pixels horizontally, they are roughly the same timeperiod apart but there may be a tiny difference depending on timers but when the display is so small i dont think it matters. Bar chart which resizes the y...

Well the weekend was mostly just working on the code as im still waiting for some glass straws with (I hope) a wide enough internal diameter so no experimenting on the induction heater / glass side of things. So pretty much dealing with user input and made a decent start at decoupling the...

@TigoleBitties theres no plan to make a product from this and just enjoying some tinkering - if some one want to run with this and make a device that would be pretty cool (pop one in the post for me to test if you do please) Hopefully once i have a bit more done ill get all the code and a...

After sleeping on it i think there is a more fundamental issue at play the and after a test with just the thermocouple messing turning the coils on and off and moving it about in the tube i pretty sure im getting an induced current in its wires. Im not sure i can compensate as in when the...

Looking good on initial testing - only one coil and need to mess with power and heater element size as i think the big one is too much Getting some odd readings from the thermocoule - its weird all ok and then a sudden drop by up to 20C which is messing with the PID big time: time...

No deliveries of yet so cant finish off the final bit however have been sorting out code to make it a bit more maintainable and even added the start of some kind of ability to get to a menu/settings screen but mostly just making the code easier to maintain and read. i have had a test with...

I dont think it is possible to increase the length of the coil wire in the circuit with out adjusting other components as there is an oscillation back and forth so any change in the coil length will mess with that. The larger tubes arrive 30mm and 24mm outer diameters - the 24 is a great size...

Well i had a thought when going to bed i had to give a quick test to see if i could make a very basic heated tube with the SS and a mod box. I dont know much about custom coils and hit an issue with too long wire and to higher resistance for my little mod box. But hacked something together in...

Heating testing with various metals - i got some stainless steel 316L strip wire i think the same the TM2 uses in its heater - a nightmare to work with but managed to wind some around my glass inner tube and get it to stay there which was the hard part - unfortunately it got hot and i droped it...

Well work cut in to the experimentation today but i did get 2 zvs coils lines up next to each other and have the code to switch on/off the heaters I decided to get the code going first and finished off a really nice class class InductionHeater(object): def __init__(self, coil_pins=None...

@TommyDee cheers i have decided to treat myself and ordered one of those pen like ones plus a set of 510 heads in case i need extra heat. @Hippie Dickie wow - your build is class thanks for the link! Also thanks so for confirming my suspicion re the thermocouple being fast enough - im using...

Glad to know this is of interest to other people. Im hoping once i prove the initial idea is a runner other people will give it a go. There are so many tunables and other people trying stuff out would be great maybe ill start a new thread once the initial list of needed bit and pieces, I hope...

I was itching to get the coil and micro controller working together and remembered I had some DS18S20 1-wire thermometers so decided to see if I could get a low temp test working. Again it only took under and hour to get it all wired up and coded - the tests took much longer. For the testing I...

Initial setup of control stuff pretty much done - pi pico and other bits arrived yesterday afternoon - took a hr or so to get connected and familiar with it as never used a proper microcontroller before but its so nice and easy to develop/prototype with that by the time i went to bed i had...

While i await my deliveries I have been doing some research and looking at some code to control it all - looks like the glass bits may take a while to arrive but I only need a few bits more of the electronic parts to make a start on the pid/temp control stuff. Seems there are some hard limits -...

As long as the coil can wrap around it and pump in more heat than it looses while heating up you should be all good - may take a while to get up to temp though. The balls are there just for heat reserve like a ball vape - with the screwball i need to leave it on for a good 5 mins before rubies...

@TigoleBitties thats great! I did think about getting a vaponic but they are just too small bowl wise for me - same goes for the dynavap. I do think that getting the temps regulated is very important as the ih can get the metal really hot really fast - i do like the idea of a sort of induction...

Thanks - i did think of the metal tube idea as well just hard to find one of the correct diameter to fit the glass perfectly hence using some wire wrapped around Using wire would allows for easy adjustment to add a bit more wire on it or maybe in bands so there are gaps to see whats happening...

Thanks - that blue stuff has already been stripped off and getting some more thermocouples with glass fibre protection only - no need for the shrink wrap as i need the probe to be in direct contact with the metal - im hoping i can wrap the ribbon around it without shorting it out or if need be...

Hi Long time reader first time poster here - i have a collection starting with a digital volcano from many years ago which i never really used plus other shit vapes over the past 10 years or so. I finally switched to vaping fulltime with a dynavap about a year ago. Since then i have had quite...