I should say, that comment about you all helping me was directed at the wider crowd! I’d hate to leave folks out in a call out. Great community here!
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Hey late to the party here, but if you ever have any questions on vacuum equipment, feel free to shoot me a message. I flip pumps on the side and 90% of the time that involves some kind of rebuild, so I’ve been inside most common pumps for this industry. If you find the Welch to be too slow let me know and I’ll keep my eye out for something with higher throughput.
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If you haven’t made the purchase already, I’d say the 250ml spd kit being offered up is a good bargain. And you wouldn’t have to worry about gathering so much crude for a run.
I was curious, but couldn’t justify all the other costs associated with getting started. Plus the amount of material needed for any spd run kinda rules it out for me.
Anyway, good luck with it all!
I agree with @Demontrich ~20lbs of trim usually yields me close to a liter of finished crude. With 10oz’s, even if it’s high quality you’re looking at maybe just over 100g of crude. Maybe 100-150? And I don’t think you’d wanna wait another 3 months just to run, so the 250 ml might be right up your alley.
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I can’t find a thread that has the info on the @Beaker glass. I’m looking to find out what is included.
It’s the most of the glass needed and the heating mantle. You’ll still need a cold trap from my understanding.
I was looking at prices on just the glass for a 250ml kit, and it was like 350.
Make em an offer!!!
@cyclopath, care to add any information to entice this man?
I’m curious why most always refer to yields in crude? Why never the final pass amount? I’d love to hear some results. I’ve heard numbers like 70% yield from crude usually but just curious!
I hit 75% on average of mains
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Thanks @Demontrich
On average, where does that leave you on potency? Assuming you reduced the crude to 75%.
P.S. what do you have the most trouble with remediating?
Well I usually do go off of final yield, however I was going off finished crude yield so that the OP could see just how much he’ll actually have to load in the flask.
We are yielding about 60-65% mains on our crude.
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The runs I’ve done, 86%, 91%, and 92%
75% is what I pull from the decarbd crude.
Imo, potency depends on how you swap flasks. Swap too early you adding Terps, too late tour adding tails. I’m still refining my flask swap times.
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mono cow?
@Curious_Roberto posted a link.
the “kit” is pictured in post four of: 500ml or 2L - #4 by cyclopath
what’s included (essentially as pictured…):
mantle, boiling flask, cow, several receiving flasks (I think there might be 4).
pretty sure I can come up with an analog thermometer that fits.
I don’t know what @beaker was using for a cold trap, so you’ll need one of those.
what’s not included: pump, vac gauge (I’ve seen it done without, I don’t recommend starting out that way). I did run into a JB DV-22N digital gauge that measures down to 10um for $150 just the other day. not ideal, but might be sufficient. I’m currently running a JB DV-41 ($250) on our 2L systems. It’s better than running blind…
Also missing klet clips and GL14 connectors. Some folks just run them as if they were hose barbs (push the hose over the threads rather than using the correct adaptor).
I don’t believe that the mantle has built in stirring (I’ll check). even if it does, @beakers stirbars did not make it into my hands, so you’re on your own there as well. [can anyone address how no stirbar will work?!?]
I’m doing a training run for our new crew members this morning, and if I don’t run into any snags, it might be amusing to fire up the little rig and see how it behaves.
If I was to guess, I’d say @beaker was running this on a robinaire hvac pump at one point. He eventually threw several $k at an edwards EM30 & an appropriate vac controller. although I don’t know that he ever hooked this little SPD up to it.
If i do have time to run it, I’ll probably try it with the hvac pump. or at least try pulling the system down with said robinaire.
I’d say it was a decent deal for $250. with the understanding that @Roguelab offered that mostly on sentimental value.
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How do you know when to switch to mains?
Do you use ultraviolet light or some other method?
Best way to learn working with uv light assist is running normal runs with the uv on close to the glass wear and dimmed light
Thc turns. Mostard green in first pass and a broccoli stem green on second pass
It takes some practice but the advantage is that once under the belt
You can start with hot. Condensor of the start and use this as one of tour parameters
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Still eyeballing it. Getting better however.
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I’ll happily take this learners kit if others decline.
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Select the 100 LED version.
https://www.amazon.com/gp/product/B077ZNBQ83/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
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Is the BF 1 neck or 2 neck?
One or three. I’m gonna run it with one tonight, because there is no temp probe in the mantle. Happy to ship the 3-neck as well. The two stage robinair looks like it pulls down to 80microns, not ideal, but it will probably work well enough.
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