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i found this is also true for my heating element - 1/8" wide nichrome80 ribbon. i finally settled on a physical connection - sheet metal screw holds the end of the ribbon against a flat copper post. thermal expansion / contraction has not loosened it over several years. i opted for a k-type...

i have my vape set to timeoff at 7.5 minutes from startup. roughly 1.5 minutes to get to temp and heat saturate, then 6 minutes of inhales. i like long-ish inhales. seems to work well. i need to do the math to figure out how much heat transfer from heater to incoming air vs air flow rate...

@Polarbearboy - 1968 is when i started tokin' also. thanksgiving break, sophomore year in college. i'm still a hippie (in my own mind) ... sit around naked most of the time, at least. spend the first half of the 1970s in california - it blew my mind.

anybody measure their heart rate while doing aerobics? i hit 167 toward the end of my 30 minute session today on the NordicTrack skier. theoretical max for a 53 year old ... i'm 76. there is a theory of longevity that there are only so many heart beats and one can use them all up too soon. i...

what is the MOSFET gate voltage from the pwm? i can't tell if it is 3.3v or 4.5v from the description. should be eq or above 4.5v (for the one i use) or the source to drain resistance can skyrocket and burn it out. mine used to get wicked hot before i learned this.

trust ... but verify or have faith ... but get references

my life long motto (for 54 years): know your chemist.

and here it is 4 and a half years later ... damn pandemic ... i got distracted

it is fully integrated into VS Code, via github. i can use the sidebar chat and do the inline code chat. i used to do #include under classic ASP, but that has been replaced under ASP.NET - seems to be a share problem but i can't prompt a solution to the problem.

just came across this recent O'Reilly article about LLM lessons. still reading but it looks pertinent. https://www.oreilly.com/radar/what-we-learned-from-a-year-of-building-with-llms-part-i/ i am trying to do too many things at once and getting pissed off that i can't get anything done. my...

the top AIs now have extensive coding capabilities - or so they say. it certainly helps with understanding visual studio code syntax and structure. it has been about 20 years since i was current with MS programming tools. this helps navigate the docs to teach me what i need to do. but i want...

interesting. i have an excel sheet(s) that generate and export GCODE as a text file. do you think the AI (do you use Copilot) could turn this into a web app?

i am kind of annoyed with the current "AI". i have been trying to get it to handle some of my use cases, but it seems to be throttled. only seems to support entertainment - videos, music, emails. i can't get it (Copilot) to look at my code base. i can shove one file at a time into the prompt...

thank-you for your interest. two decades for me.

nice post. my vape may meet what you describe in 9). my herb vial is a confined space with the draw tube resting on top of the vial. i let the vial + bud heat soak for 90 seconds after reaching vape temp - my current setting is 420°F (215°C) so 2 minutes from start. the center of the herb...

nothing new to share yet. i plan to take all my work into some maker space. i think i have some useful information to share. couple of days ago i was vaping on the balcony and thought of a new way to fabricate the cube body. i realized that my cnc router makes it possible to revisit the...

me too. this is the middle of the coil for my heater.

that is my approach also. the temp in the vial is about 50°F below setpoint until the draw starts, then it is at setpoint within a few seconds. spouse got a mighty recently and it goes +5/-2 as how it maintains the setpoint. not very well tuned, and pretty slow to reach setpoint from startup.

i had trouble tuning the PID also. i found that it was very sensitive to being over controlled with too much swing over/under setpoint. i tried to use an algorithm to calculate the duty cycle for the PWM but the PIC 12F683 has very primitive add/sub with no carry or borrow. so i resorted to a...

ok, my bad - 12v gate should be plenty - i think you're right it must be the current draw. my MOSFET (FDB8832) is rated for 30V, 80A and i think the 16agw cable limits the current below that.