Recent content by Engy

  1. Engy

    The Bud Toaster - (currently: Model 14, version 3)

    The heater coils behave pretty linearly around there, which is just fine for PID.
  2. Engy

    The Bud Toaster - (currently: Model 14, version 3)

    Nice build, yayvape. Looks like fiddling with the I, D terms can get you better stability around the setpoint. Have you tried Ziegler-Nichols for tweaking the PID? Yours looks pretty decent already, but its something you might consider trying. Should be pretty straightforward, compared to...
  3. Engy

    The Bud Toaster - (currently: Model 14, version 3)

    To drive the MOSFET, I'd take a look at something like the MCP1416 IC from Microchip. It can provide a lot more current than the output of a uC can. The gate capacitance of the MOSFET can reach 1000s of pF during high current switching and the 20mA or so output a uC is capable of will take a...
  4. Engy

    The Bud Toaster - (currently: Model 14, version 3)

    Ah, I didn't catch the supply voltage. You could always keep the uC at 5V, though, and level-shift the SPI signals between the uC and the MAX31855. Then again, minimizing the number of components is always good, so having all the peripherals use 5V is convenient. This app note on level...
  5. Engy

    getting rid of toxins at 202 C (395 F)

    Statistical mechanics says this is absolutely true. However, at such low temperatures, the probability of single THC molecules acquiring enough energy to leave their neighbors and become airborne is exceedingly low.
  6. Engy

    The Bud Toaster - (currently: Model 14, version 3)

    The MAX6675 is $14 at digikey and mouser!? Thats quite expensive for an 8 pin chip:(. Additionally its successor, the MAX31855 is out of stock everywhere... grumble.
  7. Engy

    Discontinued VapeXhaleLabs Presents: The Cloud

    Sweet, thanks for clearing that up. I just like knowing how things work ^_^. Interesting choice of copper. It has such a low resistivity!
  8. Engy

    Discontinued VapeXhaleLabs Presents: The Cloud

    You're probably right here. By ceramic, he probably meant, "ceramic in the airpath" and was comparing having those materials present in the airpath vs not having them present.
  9. Engy

    Discontinued VapeXhaleLabs Presents: The Cloud

    I read that post. A "proprietary heater that can shape around our glass" is very nonspecific. The only time stonemonkey55 used the word "ceramic" in one of his posts in this thread was when he was differentiating the Cloud from other vaporizers eg: post 1183 see google...
  10. Engy

    Discontinued VapeXhaleLabs Presents: The Cloud

    Thanks. To be fair, the type of heater used in the Cloud was never stated in this thread. Look for yourself google: site:fuckcombustion.com vapexhalelabs ceramic heater Here's the quote from vaporpedia for those who are interested: "The Cloud Heat Injector uses a unique heater design that...
  11. Engy

    Discontinued VapeXhaleLabs Presents: The Cloud

    Hey, the Cloud looks quite impressive. It's evident that a lot of work went into it. I had a few questions that I didn't see the answers to in this thread / your site that I was wondering about. Where is the temperature sensor located? I think I remember you mentioning that you used a...
  12. Engy

    Discontinued The Oracle Infrared Vaporizer

    Good to know, thanks.
  13. Engy

    Discontinued The Oracle Infrared Vaporizer

    I sincerely hope this is an early unit that dime is showing. There are some serious fit and finish issues that shouldn't be in a $450 vaporizer.
  14. Engy

    Discontinued The Oracle Infrared Vaporizer

    Hey, which IR emitter are you using in The Oracle?
  15. Engy

    The Bud Toaster - (currently: Model 14, version 3)

    I'm quite excited about putting my knowledge of embedded electronics to good use :). I'm a C, AVR guy (paying for compilers sucks) and tend to stay away from assembly unless absolutely necessary, so I commend your ability to implement PID control in PIC assembly with that damn W register!
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