Signal Ditch
Signal Ditch
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Building an Oxikit DIY Oxygen Concentrator
This time we're talking about Pressure Swing Adsorption and how we can use fancy sand to pull pure oxygen out of thin air.
Errata and Clarifications:
- If you are going to use PVC pipe to store pressurized gas of any kind at any pressure, you MUST use pressure rated pipe and not "thinwall" or "DWV" pipe. I chose Schedule 40 pipe, which is the thinnest walled pipe that has a pressure rating, but there are such things as Schedule 80 and 120 pipe. Using pressure rated pipe does not make it safe to do, it just makes it safer. (Cheers, @Spirit532)
- Some concern has been raised about material fatigue caused by pressure cycling. I'm not convinced that a 30 psi pressure swing meets the threshold to cause this kind of failure, but the concern is probably well-founded. A failure of this kind at 30 psi could be scary, but probably not lethal. The chances are good that a failure would be unexciting, if it ever occurred. PVC is not a brittle material and is also very resistant to oxidative reactions. I will be sheathing my cannisters in something to prevent shrapnel just in case. (Cheers, @NicolasBana)
- Sieve is pronounced /sɪv/ and I _know_ that in any other context (I pronounce it correctly in the idiom "leaks like a sieve") but I learned to pronounce "molecular sieve" from @NurdRage, for better or worse, and his incorrect pronunciation has stuck with me. (Cheers, @nilo70)
- My description of the PSA cycle is not entirely accurate. I state that the equalizing valve is mostly responsible for purging the nitrogen from one tank to another, but that's not exactly true. Most of the purge actually happens via the orifices in the output junction. The equalizing valve theoretically "primes" the unpressurized canister with the last bits of pressurized O2 from its counterpart (because the tank will adsorb nitrogen better under pressure, so if you already have some O2 pressure in there when you start pumping in air, you'll pass less nitrogen as the pressure ramps up) I may address this in a follow-up video, but this is still not a bad introduction to the PSA cycle.
- Some of the PSA cycle diagrams show out of order, mostly when I cycle through them quickly. What I'm describing is still correct and any diagram that is discussed for any length of time is correct, it's just some of the quick ones. This section is a Google Slides stack that I recorded with a screen recorder and at times I advanced the slides in the wrong direction without noticing.
- If it is working properly, the oil in an oil-filled pressure gauge will never contact the process gas. What I describe as a hazard is absolutely still true, however. Please do not use oil-filled gauges in oxygen service. In fact, if I were building this machine for someone else to operate, I would take apart the cheap pneumatic valves, wash them in degreaser, and re-oil them with a fluorinated oil for reactive gas service. Take care to look into the oxygen compatibility of anything that has to carry pressurized O2 (Cheers, @AdvancedTinkering)
- When describing the tool used to agitate the sieves in the OxiKit video, I call it a "pneumatic vibrator." In my head, they used a concrete vibrator. Watching the footage back, they're clearly using an air hammer. If you go looking for that tool, it's called an air hammer. I don't necessarily recommend using it for this, however. They make a point to run it at low pressure and to only contact the fittings with it and not the pipe wall directly, but it still seems easy to damage your PVC this way. Buy a muscle massager instead, you deserve it.
- I describe the gas separation mechanism as "having to do with the relative size of the molecules" which is sometimes the case with molecular sieves but in this case, the mechanism is actually electrostatic and ion exchange interactions! This is why the metal cation (Li vs Na) bound to the zeolite affects the selectivity. (Cheers, @justliberty4072)
Check out the Oxikit project here:
oxikit.com/
You can stay up to date and support me on Patreon here:
www.patreon.com/integratedtherm
And if you want more info on my build, you can read the blogposts here:
www.nickpoole.me/
And check out the Github Repository:
github.com/NPoole/PSA_Oxygen_Concentrator
Переглядів: 25 790

Відео

An Update on the DIY Glassblowing Lathe
Переглядів 4,3 тис.10 місяців тому
This time we're talking about the lathe again. It may not look it, but we're close to finished. In fact, I'm already using it a little. Check out my feature in Make Magazine: www.makershed.com/products/make-magazine-volume-86-pdf You can stay up to date and support me on Patreon here: www.patreon.com/integratedtherm
I Built a Custom Controller for my Vacuum Chamber
Переглядів 3,4 тис.11 місяців тому
This time we're talking about automation! This Arduino-based vacuum chamber controller can pump down the system and bring it back to atmosphere without any supervision. Check out my feature in Make Magazine: www.makershed.com/products/make-magazine-volume-86-pdf You can stay up to date and support me on Patreon here: www.patreon.com/integratedtherm
I Built A DIY Vacuum Tube Diode
Переглядів 6 тис.Рік тому
Just a quick update on what I've been up to in the lab while it ices over. I made a vacuum tube, gave a conference talk about it, passed 1000 subs, and almost finished the vacuum bench. You can watch my Hackaday Supercon talk here: ua-cam.com/video/39-5WgcvaHk/v-deo.html You can stay up to date and support me on Patreon here: www.patreon.com/integratedtherm
High-Vacuum Basics and Evacuating Electron Tubes
Переглядів 26 тис.Рік тому
This one's all about the basics of high-vacuum systems and how I designed the bench that I'll be using to pump down my homemade electron tubes. You can stay up to date and support me on Patreon here: www.patreon.com/integratedtherm Channel Credits: @AppliedScience @AdvancedTinkering @glasslinger @EdwardsVacuum
Sourcing Uncommon Materials for Vacuum Tube Manufacture
Переглядів 11 тис.2 роки тому
In this video, I talk about 4 rare components that I've managed to collect in my ongoing quest to build vacuum tubes. I cover what each item is, what it's used for, how I sourced it, and even the names of the suppliers! Gather 'round, adventurers and look at my wares, this episode's all about rare loot! You can stay up to date and support me on Patreon here: www.patreon.com/integratedtherm If y...
Designing an Open Hardware Glassblowing Lathe
Переглядів 11 тис.2 роки тому
(FIXED AUDIO REUPLOAD) In this video, I'll introduce the concept of glassblowing lathes, walk you through the CAD for my Open Source Hardware design, and show you what parts have been fabricated so far. You can stay up to date and support me on Patreon here: www.patreon.com/integratedtherm If you enjoyed the music in this video, please support my brother's musical project "petrichor." ua-cam.co...
Introducing the Vacuum Tube Manufacturing Series
Переглядів 21 тис.2 роки тому
In this video, I set out the plan for a series of projects going forward that will culminate - hopefully - in a bunch of handmade vacuum tubes. You can stay up to date and support me on Patreon here: www.patreon.com/integratedtherm Thank you to all of these creators and makers. Please go check out their channels! Ron Soyland (Glasslinger) ua-cam.com/users/glasslinger Dalibor Farný ua-cam.com/us...
Oskitone's Scout Synthesizer Sounds as Cute as It Looks
Переглядів 5332 роки тому
Thanks again to Tommy for sending me this adorable synth. You can find the Scout-as well as his other musical creations-at www.oskitone.com/ or on Twitter at @oskitone Of course you can feel free to follow me on Twitter as well at @northallenpoole Or just get YT Channel updates at @signalditch SUPPORT THE SIGNAL DITCH ON PATREON! www.patreon.com/signalditch Thanks! Go Make Something!
Transfer flux from one syringe to another WITHOUT making a mess!
Переглядів 3,6 тис.2 роки тому
Answering a few questions about using syringes to dispense solder flux
DIY Vacuum Pen
Переглядів 2,2 тис.2 роки тому
Make a quick and dirty vacuum pen for hand placing components that are difficult to grasp with tweezers
Building a Liquid Cooling Loop for the Laser Cutter
Переглядів 25 тис.5 років тому
In this video, I'll be using PC cooling components to build a custom water cooler for an 80W CO2 laser tube. Here's a list of things I bought for this build: Asixx PC Cooling Radiator - www.amazon.com/gp/product/B07FF1WV29 Noctua NF-P12 redux-1300 - www.amazon.com/gp/product/B07C5L4QGN Thermaltake Pacific TF1 - www.amazon.com/gp/product/B07KR8VQQL Barrow Reservoir with Acrylic Tube - www.amazon...
Building a Wooden Shop Door from Scratch
Переглядів 2,7 тис.5 років тому
The Shop is in need of a new door, so I thought I'd try my hand at building and hanging my own scratch-built door slab.
Cloning the Boring Company Flamethrower
Переглядів 1,7 тис.6 років тому
Cloning the Boring Company Flamethrower
Afternoon Hacks: Chameleon Box
Переглядів 45311 років тому
Afternoon Hacks: Chameleon Box
Phone Phreaking and an Arduino BlueBox
Переглядів 6 тис.11 років тому
Phone Phreaking and an Arduino BlueBox
Pinball - Playfield Components
Переглядів 29211 років тому
Pinball - Playfield Components
LEDs + Lightbulbs: Making a Toy Raygun
Переглядів 47311 років тому
LEDs Lightbulbs: Making a Toy Raygun
Measuring your Heartrate with Photoplethysmography
Переглядів 3,1 тис.11 років тому
Measuring your Heartrate with Photoplethysmography
New Year Update 2013
Переглядів 10211 років тому
New Year Update 2013
Episode 3 - The SFE80 Micro Computer System
Переглядів 33011 років тому
Episode 3 - The SFE80 Micro Computer System
Episode 2 - Etching Circuit Boards at Home
Переглядів 67111 років тому
Episode 2 - Etching Circuit Boards at Home
Episode 1 - Introducing Fringeneering Labs
Переглядів 26311 років тому
Episode 1 - Introducing Fringeneering Labs

КОМЕНТАРІ

  • @interstellarsurfer
    @interstellarsurfer 2 години тому

    Excellent. 👍

  • @deckerjwd
    @deckerjwd 20 годин тому

    love this i have a thing from a nitrogen generator its a tube with a sensor that is suppose to tell you what gassed in ppm are in the flow, its yours if you want it

  • @magic.marmot
    @magic.marmot 23 години тому

    Similar dessicant dryer on the air input line mau help.

  • @willjackson6407
    @willjackson6407 День тому

    Dude this is really nice!

  • @hignaki
    @hignaki День тому

    Antifa, vacuum diode hackaday, professional content, and only 5k subs??? What a travesty! You're wonderful.

  • @kyoteecasey
    @kyoteecasey День тому

    Hey that's a Sack Barrow in NZ

    • @SignalDitch
      @SignalDitch День тому

      Wow, it sounds like sack truck or sack barrow is the word in every other English speaking country just about

  • @chazlabreck
    @chazlabreck День тому

    I have two old medical oxygen concentrators I want to convert into an oxygen generator.

  • @kyoteecasey
    @kyoteecasey День тому

    Fantastic build mate, practical if a little complex, solution for a real cost. What is the rough hours of use to pay back the system I wonder? Also just a thought if that condenser safety valve would be better upright to reduce risk of it freezing shut?

    • @SignalDitch
      @SignalDitch День тому

      Thanks! That's a good question, I don't think I can know that until I find it what the maintenance cost will be e.g. replacing zeolite. As for the safety valve, I think you're probably right. Someone else has brought that up as well.

  • @philliplopez8745
    @philliplopez8745 2 дні тому

    Now you need to built an acetylene generator , then you would be cooking with fire .

    • @SignalDitch
      @SignalDitch День тому

      Just a big bucket of water that you toss calcium carbide into

  • @alandavis6429
    @alandavis6429 2 дні тому

    You ought to contact Elon Musk, he can do it a lot more efficiently...hay it's just like an air hockey table.

  • @weetarted3715
    @weetarted3715 2 дні тому

    Yes please do a video on the clean build you have made for the spot welder.

  • @steveh8724
    @steveh8724 2 дні тому

    Great video! Thanks very much for sharing and especially for the wonderful, high-quality video and narration! Liked & Subscribed! AND thanks very much for the added information in the video description text which fleshes out the narration and clarifies some key points.

  • @schnauzpig
    @schnauzpig 2 дні тому

    Never thought anything good would have come out of Covid. Nice video.

  • @DanielMoss-i7c
    @DanielMoss-i7c 2 дні тому

    Respect bro. Near cracked my screen hitting thumbs up. Love tubes. Love your work.

  • @TheBrick2
    @TheBrick2 2 дні тому

    Cool project well explained, nicly put together in a compact package. Do you think that would have enough flow for cutting? I suppose with a larger filter and acumulator it could up flow rate. In the UK we would call your trolly "sack trucks" (point of interest, not a criticism of some bullshit UK terminlogy vs North Ameriacan termnology). P.S.Love the tats on your fingers. I always fancied e^i pi as in a preveosue life I was a mathermetician for a few years post uni. P.P.S. Excuse the spelling Spell check has stopped working on youtube comments for me!

  • @JagerEinheit
    @JagerEinheit 2 дні тому

    Would a version 2.0 include an air conditioner in the path of the air you are ingesting help? I know a/c is great for dehumidifying , and my brain is trying to fit one in after your dessicant issues in the SE USA was noted. They make portable A/c units that you could pipe the output directly into your intake potentially. Likely overcomplicating your design, but I thought I'd ask anyway. Great video regardless.

  • @Metalwolf765
    @Metalwolf765 2 дні тому

    That was cool, exactly the right kind of needing out for me. Subbed!

  • @kayakMike1000
    @kayakMike1000 2 дні тому

    1300 bucks???

    • @SignalDitch
      @SignalDitch 2 дні тому

      You never told me what you wanted it to cost so... I had to guess 👉👈 I've published a complete Bill of Materials in the github repo linked under the video. I'm sure if you look through it you'll be able to find cheaper alternatives to some of the parts, especially if you can source them locally/second-hand/salvage.

  • @robertpeters9438
    @robertpeters9438 3 дні тому

    Your oxygen tank is a muffler.

  • @ulwur
    @ulwur 3 дні тому

    I especially like the exposed parts of the live wires at the solid state relay.

    • @SignalDitch
      @SignalDitch 3 дні тому

      I especially like the sarcastic comments

  • @edgeeffect
    @edgeeffect 4 дні тому

    Is that mica you're cutting on the laser/plasma cutter and using as isulators(?)

    • @SignalDitch
      @SignalDitch 4 дні тому

      Yeah it's mica board. It doesn't end up being part of the vacuum seal, it's really just a convenient heat-proof material for cutting the wire jigs and keeping the vacuum wax from flowing out of the part during potting.

  • @user-hw9ui8pu9s
    @user-hw9ui8pu9s 4 дні тому

    Very informative. I would like to know the composition of the sealant you use, which you pour when heated and which behaves well in a high vacuum.

    • @SignalDitch
      @SignalDitch 4 дні тому

      In the video, I use "Apiezon Wax W," which isn't strictly meant to be poured in thick sections, but I've pumped this down below 10^-5mbar without incident. The Apiezon Wax is very expensive, but it is easy to work with and dissolves in mineral spirits, so it's easy to clean up. I only used it because it was given to me. I believe you could do the same with Faraday Wax, which you can make yourself (search for a video by @chromatogiraffery3104 on the subject)

  • @Tibbs_Farm
    @Tibbs_Farm 4 дні тому

    So with very little modification, couldn't you extract the nitrogen exhaust and pump it into an air compressor and have NEA. Maybe have another stage of zeolite to get closer to N2 in your air compressor. 2 bangs 1 buck. N2 and O2 in separate containers.

    • @SignalDitch
      @SignalDitch 4 дні тому

      Yeah, in theory, you could certainly do that

  • @KeritechElectronics
    @KeritechElectronics 4 дні тому

    Lovely tech, awesome craftmanship! I'm picking up a lot of Dalibor Farny vibes here. Looking forward to seeing more.

  • @DCBpower
    @DCBpower 4 дні тому

    💡Watch offer-up and occasionally you'll find used medical oxygen concentrators for as low as $50 and sometimes even free.

  • @JustAverageJeff
    @JustAverageJeff 4 дні тому

    I love your tattoo's!

    • @SignalDitch
      @SignalDitch 4 дні тому

      Thanks! My head piece was done by Brad Wooten, if you like the style you should look him up!

  • @davidcoates4852
    @davidcoates4852 5 днів тому

    Hand truck = sack barrow 🏴󠁧󠁢󠁳󠁣󠁴󠁿🔧👍

  • @scottsammons7747
    @scottsammons7747 5 днів тому

    Tube dimensions are generally tighter than pipe. As usual, I have a choice to be a maker or a patron. Maker it is.

    • @SignalDitch
      @SignalDitch 5 днів тому

      "I have a choice to be a maker or a patron" I hear you, absolutely choose maker whenever you have to choose.

  • @RA-II
    @RA-II 5 днів тому

    Can you oxygen pressure gauges?

  • @Live.Vibe.Lasers
    @Live.Vibe.Lasers 5 днів тому

    20:40 an oil (glycerine) filled gauge..the oil is confined to the outside of the Bourdon tube. unless the Bourdon tube develops a leak..no risk.

    • @ulwur
      @ulwur 3 дні тому

      Exactly. And If the bordoun tube is leaking the entire gage will pop open.

  • @andrewdegozaru74
    @andrewdegozaru74 5 днів тому

    Really interesting project. I've saved it in my playlist, passed it on to a couple of mates to watch and subbed.

    • @SignalDitch
      @SignalDitch 5 днів тому

      I appreciate it, glad you enjoyed!

  • @IXIOM
    @IXIOM 6 днів тому

    For something that got randomly recommended to me on UA-cam this is great stuff! Love the content!

  • @habaristra6248
    @habaristra6248 6 днів тому

    Am I shtupeed? Inches of Water? Inches of Mercury ?

    • @SignalDitch
      @SignalDitch 6 днів тому

      I don't understand your question. Are you confused about why those units aren't covered? Those are more common in low/rough vacuum, like you might find in refrigeration and HVAC. As I mention in the video, we do use a measurement derived from millimeters of Mercury called the Torr (which was later redefined, so it's not strictly 1 mmHg, but it's close). You're not likely to find InAq or InHg on a commercial high vacuum gauge.

  • @evanbarnes9984
    @evanbarnes9984 6 днів тому

    This is the first video of yours I've seen, and I'm only two minutes in, but I love it! Instant sub. Also you look futuristic as fuck, it's great

  • @u1kim
    @u1kim 6 днів тому

    Thank you for the video. My interest is for nitrogen and wondered if the exhaust output is sufficiently pure nitrogen for oxygen shielding in welding application, or is there a more economical alternative method for removing oxygen?

  • @patrickfrantz2466
    @patrickfrantz2466 6 днів тому

    Some applications may want the low oxygen (N2) output discharge. I have an amazon plasma torch for cutting steel/aluminium/stainless. I am a NOOB with this type of tool. It would be interesting to see if the low O2 air would work well for that application. I noticed when cutting SS that there was a lot of oxidation in the cut. Who knows....?

  • @fisherteladi1837
    @fisherteladi1837 6 днів тому

    I'm always surprised on how precise you choose topics that have my main interest. That's something awesome with you. You disappear and when you come back it's with something really big. Really thank you. It reminds me by the way of the glass lathe project. Are you still on it?

  • @wcglass
    @wcglass 6 днів тому

    I bought a medical oxygen concentration system for my glass shop last year i wonder if this would have been more or less cost effective.

    • @SignalDitch
      @SignalDitch 6 днів тому

      If you got a good deal on it and it's been working for you then you probably did well. Part of the audio I lost in the microphone issue was me explaining why I decided to build instead of buy and I still recommend buying if you can and if you know how or are willing to learn how to service the commercial one.

  • @paranoidzkitszo
    @paranoidzkitszo 6 днів тому

    Pro tip- fill the copper pipe with sand....if requiring to create nice round, tight bends or loops. Shape the pipe with the sand filled within it. This will almost completely remove the chance the pipe will crimp down on tighter bends.... you will have nice and smooth and round piping...remove sand when finished.

  • @Real_Tim_S
    @Real_Tim_S 7 днів тому

    This project looks like it wants air bearings for chuck alignment, and some kind or rotary air cylinder to handle chuck holding force.

  • @WarlordEnthusiast
    @WarlordEnthusiast 7 днів тому

    This video gives me an idea that might put me on a watch list. Say you have a large amount of uranium hexafluoride gas and you wanted to purify it to get some U-235, could you not pressurize the gas through zeolite of a certain pore size to trap just the U-235? Sort of like how a centrifuge works, just line up loads of these connected in line and just keep running them in a cycle until all that's left is U-235. Btw, I love your tats!

    • @SignalDitch
      @SignalDitch 7 днів тому

      Yeah, I'm not sure if there's a zeolite that has the selectivity you're looking for, but there are processes that do the same thing with ion-exchange resins. Molecular Sieves _can_ be used to separate U from other stuff, but it would have to be pretty exotic to affect isotope separation, I think. Either way, I hope you use your danger rocks to make clean energy instead of **checks notes** murdering thousands of people.

    • @WarlordEnthusiast
      @WarlordEnthusiast 7 днів тому

      @SignalDitch all I want is the nuclear powered car that I was promised in the 60's, is that too much to ask? lol

  • @HenryKlausEsq.
    @HenryKlausEsq. 7 днів тому

    This whole video was a beautiful example of humans being bros. You were reasonable in your expectations, did your research, and those who had capacity provided samples and useful information. And now hobbyists are blessed with more paths to success as a result of your efforts. I applaud everyone involved. This is how it should work.

  • @slicedbread9003
    @slicedbread9003 7 днів тому

    Good video. I enjoyed it and all that you went through. For many of us we may not need as much O2 and therefore may be able to use a used oxygen concentrator. The thing is that your video highlights the internal workings of these concentrators. They use the same mechanisms. Your video should be helpful as well to anyone that is using an old medical O2 concentrator for soldering or brazing.

    • @SignalDitch
      @SignalDitch 7 днів тому

      Thanks, yeah, that's my hope! It made sense in my circumstance, but it's definitely not practical or cost effective for everyone.

  • @animeniac978
    @animeniac978 8 днів тому

    Great vid. but www.google.com/search?q=pronunciation+sieve

  • @bigguy8586
    @bigguy8586 8 днів тому

    if the zeolite is dangerous, how will that be great for hospital? How do you know you got it 100% out of finished product? Just a filter doesnt give me 100% assurance.

    • @SignalDitch
      @SignalDitch 8 днів тому

      This is the way that almost all on-premise medical oxygen in the world is generated (bottled oxygen is often fractionally cryo distilled) It's only dangerous because it's a rock, and breathing rock dust is bad. A mechanical filter is the best (and only?) way to remove it. We're talking about relatively massive particulates in the world of air filtration.

  • @InductorMan
    @InductorMan 8 днів тому

    Sweet! I wonder if there's a cheap way to pre-desiccate your air so your dryer doesn't saturate as quickly, using crushed ice? Air that's flowed over crushed ice has very low absolute humidity (at least once the fog droplets have separated out). Maybe a cooler full of crushed ice, with a perforated false bottom to create an air plenum? Honestly not sure whether this is actually more convenient than just regenerating the desiccant though, that sounds pretty easy and ice is a consumable one would need to go get.

    • @kayakMike1000
      @kayakMike1000 2 дні тому

      I think you could use a few tanks of desicant. Once one tank of desicant is too full of water, maybe it cycles with reasonable warming coils to purge the water out.

  • @spark2957
    @spark2957 8 днів тому

    hi thank you so for the amazing video and all the info can you pls let me know if i can use 6 mm od copper tube instead of 3/4 9.5mm like is mentioned in oxikit website i live in a city Humidity: 69% according to google im just rebuilding a Concentrator that i found in flea market im using it to get the parts i need because everything its expensive if i want to by all new part thank you so much

  • @waynoswaynos
    @waynoswaynos 8 днів тому

    This is awesome. Inspirational stuff, thank you. But I wonder, for US$1500 in parts and materials plus the amount of hours I would have to put into this to get my 20 litres per minute of oxygen… say it took me 80 hours to complete. In my experience, things take way longer. For example, I study the plans and endeavour to understand the science, do drawings, and spend time thinking and visualising, I search online for the parts, usually from China so they are affordable, but also I need to wait a month sometimes for delivery, then I do the fabricating, testing, changes, upgrades, maintenance, etc. But lets still just say it took only 80 hours, Multiplied by a low hourly rate of 30 bucks per hour, Equals $2400 plus parts $1500, Totals $4k ! Then I look around online and discover I could buy 2 or 3 of the commercially available 9 litre per minute O2 Accumulator Machines, that are quite small and cost US$250 each, that I could plumb together and mount them to the same trolley you have to give me 27 litres per hour. For a third of the money and all that time saved that I could actually spend on practising my glass blowing skills and buying borosilicate tube. I made this very mistake when I made 3 or 4 versions of a large HHO generator cell for welding gas, spending hundreds of hours and eventually succeeding but not with a super reliable machine, and its currently broken! I found a company in Russia that makes pretty much the same thing for the same money I spent on materials. Which will be under warranty for 2 years and reliable. And the manufacture answers my questions. As a bonus I achieve actual results! So, although making stuff provides invaluable knowledge of materials and fabricating, inventing etc, which I am personally wired for and love to spend time with such, doing a feasibility study prior to commencing a project such as this, and being brutally honest with yourself, is very important.

    • @SignalDitch
      @SignalDitch 8 днів тому

      This is a great lesson for somebody who makes things to learn. That being said: 1) Assume you have another goal, which is to grow your UA-cam channel and consider which solution is more interesting to watch. 2) "...then I look around online and discover I could buy 2 or 3 of the commercially available 9 litre per hour [sic] O2 Accumulator Machines, that are quite small and cost US$250 each," Did you try to buy them? Or did you just see them for sale? Because those are different things as I discovered last year. 3) I enjoyed doing it. I could also just, you know, buy vacuum tubes. It's pragmatic to do a feasibility study if you're concerned about "productivity" or "efficiency" but this is literally just the stuff I do in my free time to keep me sane.

    • @waynoswaynos
      @waynoswaynos 8 днів тому

      @@SignalDitchThanks for your reply SignalDitch, re your 3rd point, there is probably is no better reason for the makings, I am there with that but I have time constraints and budget to consider. Re your 2nd point, I fixed my [sic] but maybe this wasn't far from the truth, and no, I've not seen one or used one. Are they terrible? Your honest opinion of them would be great to hear. I met a glass blower close to me (South Island, New Zealand) and she has a small medical O2 Accumulator filling a huge mofo storage tank probably 3 feet across and 3 high that she pumps 24-7 into (didn't get into the details of modifications, pressure shutoff, flashback, etc). And although she might only do a couple of hours of Lampwork per day, it suffices. And to your 1st point, I totally dig it. Its just that people watching may not consider this. I was sharing my views from the point of view of a full time artist/designer/inventor trying to make his way in this bizarre ol world, efficiently. Speaking primarily to other makers that don't have so much skin in the game and meaning no ill toward you all. Its actually awesome and unexpected to get some solid responses from a content creator. <3

  • @bobw222
    @bobw222 9 днів тому

    Is the output sufficient to run the torch with Acetylene and cut steel with it?

    • @SignalDitch
      @SignalDitch 9 днів тому

      Theoretically, yes. Propane actually requires more oxygen for complete combustion than Acetylene. There are some videos that another commenter alerted me to of a guy cutting steel with an oxy-propane torch and oxygen that he compressed from a refurbished medical concentrator. He was having issues (I think due to the condition of his concentrator) with the cut quality.

  • @aggese
    @aggese 9 днів тому

    Wouldent a one way valve be usefull right befure the buffer?