What did you actually use as a query?
Recall that having finally “winterized while skipping the butane” once, you’re actually happy with the product…but you couldn’t for the life of you find instructions for doing so (because you were asking incorrectly).
Pretty much. Here is my first attempt.
And the final version about a year later.
why does the final version have THREE penetrations? one dip-tube goes to the very bottom so I could empty it without removing any fittings (N2 push).
This was designed to replace the glass in one of these, but works just as well in a dry ice slurry.
Think we paid $200 for ours and ran it for years…
I searched “coldtrap, homemade coldtrap, condenser, and diy coldtrap”. All I’ve been doing lately is scanning through this site. That’s how I found the duda sheets.
You’re really leaning on that incorrectly asked title aren’t you? I asked the question wrong, because I didn’t know. People don’t know what they don’t know. And I didn’t say I was happy with anything I’ve made yet, where did I say that?
you’re correct. I’ve been extremely unhelpful…I’ll stop now and leave you to your own devices
My bad. You merely pointed out how meticulous you are in everything you do…
Ok man, where did I say you’ve been unhelpful? Not once did I say that, or even insinuate that. AND I didn’t say anything about me being meticulous. I’m just covering all the steps that I took.
the “meticulous” is sarcasm.
you told us the qwet smelled great, but still tasted bad. then told us that, nope, just neglected to clean my dab tool (mission critical if the goal is to evaluate taste…).
right. huge problem. without knowing, how can you ask, in order to know?!?
which is why I handed you a more appropriate query.
same reason I asked to explore the query used to find cold trap designs.
turns out the ones you used are decent. and the information really isn’t here in an easily accessible fashion (so I dug up and posted some for you). biggest problem most have is using too many words. or not exploring synonyms. sometimes the best response is to use a better search tool. do you know how of “site:”
check this… https://www.google.com/search?q=site://future4200.com+diy+coldtrap&tbm=isch 1k word substitutes, mostly of coldtraps. which might help you design one
why am I bent out of shape?
rather than digging in and doing the ethanol extraction you ostensibly came here to learn, you doubled down on destroying weed with the tek you claimed you were trying to ditch.
I agree that destroying weed is the only way to learn this trade…it’s just that you asked how to destroy it in a NEW way, then scaled the OLD way that you said wasn’t working for you.
I find it amusing when folks pay for my advice and ignore it…
just remembered what the current cold trap on our purge oven looks like…
1l media bottle, two holed rubber stopper, ptfe tubing…gets the job done
…but we are not asking as much from it as you would be. the coil shown above, running the incoming vapor, is considerably more effective. stainless has better thermal conductivity AND bounces better.
A 2L boiling flask with 2 barbs in a 3 gallon pot works as a cheap easy to find and make cold trap. Just fill the flower pot with dry ice on top of the flask
And conversely we don’t know what you don’t know, so we have to ask…eg with the red hot nail.
if you look at the number of page reads vs the number of posts, one can absolutely conclude that it WILL be read by someone who DIDN’T know of cold starts.
Presumably we ALL started there…unless initially trained otherwise.
again, while it may not apply to you, it is also true that many just don’t know how to construct functional search queries.
Nor how important good ones are (or where until recently).
No way of knowing if that was the problem with out exploring right?
These folks went ahead and published theirs…so their peers could critique them.
A Systematic Review of the Link Between Autism Spectrum Disorder and Acetaminophen: A Mystery to Resolve - PMC
I went to home depot to get stuff to build a cold trap but didn’t search the effects of ethanol on brass/copper/nylon/vinyl until I got there and turned my ass right back around and came home. God I wish I had a rotovap right now. I bought a rosin press a long time ago and never used it so I sold it and wish I had spent that money on a rotovap instead.
I googled all the same things that I used to search here for coldtrap, and I’ve seen all those pictures and more, but what I’m still confused on is the length of tubing on the inlet/outlet. Can it just be 2 holes in the lid of something? Does 1 of the tubes have to sink to the bottom of the collection vessel? Do they both have to sink to the bottom?
I think you can answer those questions yourself if you think about it.
What are you trying to achieve? (Not drown your pump)
What was the coil I built about?
How did it help?
Why is stainless better than glass?
What are the commonalities and differences you’ve seen?
Tube length; explore pros and cons of inlet/outlet both high and low. Should be pretty obvious which is optimal if you’ve explored your goals and options.
Bubbling your vapor through any condensate, although quite effective for solvent recovery is probably not a great idea in a cold trap.
I have a little stonylabs lab pump now, gets to just under -23. So the hole going to the vac pump definitely shouldn’t be reaching the bottom of the vessel. I was thinking of coiling some tube at the bottom for the “vapor” and covering it with a little bit of ethanol to help with recovery. The most ethanol that I’d be working with at a time is 300-400ml. I’ll have to check back once I’ve built one.
No need for a cold trap with a diaphragm pump. You might route the exhaust outside or give it a cup to dribble into.
You may even find that entire thread useful. Threads more often were back then…
Really? Well shit I just ordered stainless fittings and hose. I’d like to recover as much of this solvent as I can. So just drip it into a cup huh? Will the -22 be enough to do the final purge? I’d like to preserve as much of the terps as possible. I’m seeing people say go as high as 120f? Really? Right now I’ve got all the bulk of the solvent vaped off and it’s in my vac chamber at 32f.
Not really. Probably pass OR standards.
There are at least a couple of discussions on the subject around here.
You will loose some terps. A (likely) unsolvable problem with ethanol extraction (keep them terps!)
With a cold trap, you’ll also get terpshine. Which I suggest you keep separate from your bulk recovered solvent.
Once you get around to ethanol recovery (also extensively covered).
I read a few of those yesterday. I was doing ethanol because I don’t have a closed loop but everything is pointing to butane just being better in every way. Fuck me…
Update on the flower qwet, ditched using the diaphragm pump to try to purge and hit it with full vac (or as low as my gauge showed, -29ish) and 34c. It’s not completely done yet but took a little taste test and it doesn’t taste bad anymore, and now that it’s not totally disgusting there is a discernable taste to it, it tastes almost chalky after the hit. Still doesn’t really taste like how it smells but I guess I’m going in the right direction.
My charcoal got here today and I have some winterized bho sitting in my freezer in solution so I decided to try to use it. Some of the charcoal was getting past my duda sheet around the edges because I couldn’t get it to seal properly. I got the .5um one and I noticed that one side has a ptfe coating and the other side is more “felty”. My first attempt was a massive failure because 1 I think I used too much charcoal and 2 in an attempt to get it to seal I cut way too big a piece. It still didn’t seal so I lost alot of what I was running to absorption. After a few tries I figured out that the sheets work best with the coated side down and I guess I’ll just have to do multiple runs to get all the charcoal out. I’m not expecting this open blasted stuff to be any good, but I figure I should learn the process with the crappy stuff before going anywhere near any good stuff.
I would be posting pictures along the way for visual aids because that’s way better than huge bricks of text but any pictures could give people clues as to where I live and I don’t want that.
This is how I’m using the duda sheet. I use the buchner to trace the outline, then cut out that circle and shove it into the funnel ptfe side down.
Buchner filters should lie flat in the filter cup without coming up the sides. Make sure to wet the filter before using so it sticks to the bottom.
I tried that by using a filter paper to trace the sheet but it seemed like stuff was still getting past it.
