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zeroday
Well-Known Member
SPD Rig, purchased part by part.
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One big question is how big of a heated water bath is sufficient for the set up . The average on ebay is about 15L .
gotcha .. the ones I have been looking at are circulating and in the 500 dollar range on ebay.My heat bath is 2 liters, and heats up to 100c. But its just a "bath", it doesn't circulate on its own. I use a solar circulation pump to circulate the water from the heat bath to the condenser head and then back to the heat bath. The condenser head itself will only hold about 100ml of water at a time, as it is circulated constantly.
The larger setups are assuming you are going full on pro. The big units do heating and chilling and circulation. They look like a desktop tower PCs. I'd love to afford one, but those alone are like $2k.
My specific model is an ISOTEMP 202. If you google it, you'll see what it is. Very basic, but it will get the temperture of the water up to where you need to be to get oil.
Again, spend more money, get a better result!
gotcha .. the ones I have been looking at are circulating and in the 500 dollar range on ebay.
Just quietly though: a micron is a unit of length, not pressure. The OED has it at a millionth of a metre. I have micrometers that measure to 100th of a millimeter. That’s about where a micron lives.A Micron is a unit that can be used to measure pressure. The lower the value, the better. To provide scale, at sea level average atmospheric pressure is around 760,000 Microns. We are shooting to be under 150 Microns. My last run, I was at 140 Microns most of the time, but it did bump down to 130 Microns here and there.
Hey man. Well done! Top job extracting the goodies.
I really love that so many people are benefiting directly and their health is in better hands than the corporates. Hopefully they read your directions on caring for trim and set you up with better stock next time.
Just quietly though: a micron is a unit of length, not pressure. The OED has it at a millionth of a metre. I have micrometers that measure to 100th of a millimeter. That’s about where a micron lives.
Barometric pressure is typically measured in bar or kilopascals. When you talk about a micron I suspect what you mean is either millibar or pascal.
Also the grease. Is it food grade? You know it’s only a small amount but you can be sure that small amount is getting into your product. Food grade greases are around, just typically more expensive.
Loved the rig, the science, the result. Not nit picking. Hoping to help.