Adam Savage Machines a Brass Bottle Cap!

[@tested]

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[@iddeegee]

Why didn't you make it solid from the beginning w/o any cuts and pressing 2 parts together in the vise? you could just cut the bottom part of the cap to match the length...

[@dbomber69]

You're supposed to tighten all 3 jaws on the chuck! Otherwise the holding force is one sided and unequal. And you should laser engrave the cap.

[@333Liger]

Nothing Wrong With Camera Fails Adam, The Main Thing Is Your Trying The Best You Can:3

[@Theexplorographer]

Hey Adam, I know you probably don't read this but... Threads on a bottle neck are called the neck finish, and are standardized under ASTM D2911 if you google that, you will learn something. Also, the sheer trauma that I go through from camera spills on this channel is unfathomable. Let's machine a better camera bracket eh?

[@Jackman781]

Question… is that a seiko watch?

[@GeneDascher]

Stuff like the camera falling behind the lathe and the unlocked tailstock is why I love these builds: they're so far from polished and Adam leaves in his mistakes!

[@mm9773]

Yeah, but - and I say this with no ill will - if he didn’t leave his mistakes in, the videos would be super short.

[@jonathanpuccetti9258]

So what exactly happened with that first piece? Something wasn't tightened, so it moved around during the drilling process?

[@Drakoman07]

@@jonathanpuccetti9258yeah, the tail stock that’s meant to stabilize the stationary drill bit came loose and bound up

[@ARDIZsq]

This is exactly the kind of weird and oddly specific thing that only Adam could provide. You love to see it.

[@TLZ]

As soon as Adam showed the bottle, i imagined him finishing this bottle cap and immediatly dropping and shattering the bottle.

[@chrthiel]

It would have been on brand for him

[@tested]

@@chrthiel #Truth

[@Lheticus]

NGL the thought did cross my mind too...

[@gerryg505]

I was expecting an errant elbow while it was next to him at the lathe.

[@harbl99]

Adam: "Long story short: now I have to learn glassblowing...and find room in the cave for the equipment."

[@arstd99]

Making a bottle cap could only be entertaining coming from Adam Savage! His next video is watching paint dry. I can't wait!

[@wayneswonderarium]

He showed us how to make paint dry back when he built The Shining maze 😂

[@tested]

@@wayneswonderarium #Truth

[@Throdrim]

Wait. This Old Tony would be perfect for the job 😂

[@Throdrim]

Or Clickspring in another style now that I think about it.

[@houdin654jeff]

25:32 I'll say it again as an amateur magician, Adam does a pretty good French drop sleight. Well done sir.

[@KevlarIlluminati]

he slowed it down and I STILL didn't see the hand off!

[@kevinalder3511]

I replayed that probably 20 times.

[@mikekmit6045]

I am by no means a machinist, but in my years as a maintenance tech, I've come across times when I needed to use a lathe, and cutting threads always seemed, to me, to be this side of alchemy. Kudos.

[@mac.jenkin]

I replayed the slight of hand trick at the end on half speed and still am amazed with the misdirection. Bravo, Adam!

[@im1fadedRob]

The little "clink" of his ring hitting the bottle cap as he fakes palming it in that hand is soooo good.

[@cheekychappy1234]

I single stepped through the trick frame by frame and only on one frame is there even a sliver of a hint of the bottle cap in the lower hand.

[@EasternTriad]

I know this is going to sound trivial to most, but I love that you included close-ups of drawers where materials and/ or tools are stored.

[@CindoBaby]

Idk but I think it's cuz we'd definitely be looking in them if we were standing there. It's nice to feel included.

[@draggonhedd]

Good to know adam also cannot deny the allure of random glass bottles. They really are commodity works of art.

[@mattcastleman6708]

That slight of hand though 👌🏻👌🏻👌🏻

[@L0nl3yb0y1]

i really appreciate that adam is willing to share his "failures" on camera. i go into most projects with a semi subconscious idea that i can get a perfect product in one go and i usually dont and feel terrible about messing up. seeing someone more experienced in making have a slip up of some kind in a very solid reminder that everyone makes mistakes.

[@the_cheese]

The conflict in this story was not provided by Adam vs the material or the process, as one would expect; it is the continued struggle of Adam vs the camera that provides tension today. Thanks for this cool little video!

[@canobenitez]

adam vs camera? what's the lore?

[@the_cheese]

Sometimes it seems as if the camera has a life of its own and defies Adam's attempts to control it.

[@rebeccafluffypace1766]

Omg! That little tool you used for information on the threads.. I have one from my late father and had no idea of what it was for! Mine is really old and still in it's original box from the 60s? So excited to see it in use. Now I know ❤

[@shubinternet]

I think we have a new demerit badge! "Forgot to lock the tail stock" I love learning new things! Thanks, Adam!

[@PikkaBird]

Yes! Make it happen!

[@PBMS123]

he did it more than once, he does it when drilling too

[@RyanLRaben]

Beautiful bottle cap. I was hoping when we saw the knurling tools in the one shot that he was going to add knurling. Came out great though.

[@lermanct4486]

I was thinking it would be nice to see but honestly, as much as I love the look of knurling, it would not look good on this perticuar piece.

[@KurtJester42]

I had thoughts of "what kind of knurling is he going to do" even before I saw the box of knurling tools in the background.

[@Szlater]

Mightn’t knurling encourage over-tightening of the bottle cap?

[@hazbutler]

@@lermanct4486 It would look like a bad men's aftershave bottle top.

[@azgarogly]

@@Szlater It might, but when the sweet liquid in the bottle dead sticks the cap, Adam will regret not knurling it.

[@aserta]

2:55 Adam, even if it's new, you should still check it for swarf. Remember, in the factory, they do check them to see if they run free, so in theory, it should be free-er than that. That's quite a bit of force there, even for a new one. Admittedly, the last new new check i got was 8 years ago, but i still don't remember having to haul on the handle quite like that. As they say, better to be safe than sorry. If you've never cut hardened metals, in theory, if it's a piece of swarf, it will be spat out at some point, but if you remember cutting something harder than brass, there's a chance and they can mess the scroll. All you have to do is take out the jaw bases, if it's in the scroll, you'll know it. I had a piece of brass wedged in one a three jaw and the whole scroll was golden by the time i got to it.

[@sithus1966]

He does like using the air around his chuck, and Mr. Pete222 will always tell you, never to do that because it blows junk into the chuck.

[@ssl3546]

Lol have you seen some of the Ebay import tooling that This Old Tony takes apart? They don't do diddly in the factory once the parts are made, just slap them together and put them in a cargo container. Even some high-end brands like Starrett need clean-up these days.

[@tangolettuce3538]

LMAO I was bouncing my leg, which was shaking my desk a little bit and happened to stop just when he said "stop you're rockin!" @1:24

[@GeomancerHT]

I'm saving to get my dad a small lathe, thanks for this kind of videos, very inspiring!

[@Kindyno]

Thank you for not cutting out your learning moments. As someone that doesn't do these sorts of things, but enjoys watching them, it's nice to see when experienced people make mistakes they "aren't proud of". Lets me know if I ever try any of this that I will make mistakes and that's ok.

[@tmiklos4]

My grandfather was a machinist for 47 years at the Pittsburgh Screw & Bolt Corporation. After retirement he bought a South Bend lathe. He did all kinds of fun projects over the next 16 + years. He had no issues with turning wood on his metal lathe. I also have a friend who ran his own machine shop that had no issues with running mahogany classic speedboat stern light poles boreing the wire hole for me. He did it like you would rifling a gun.

[@briansavage932]

I would have never thought to turn a bottle cap. This is oddly fascinating.

[@nikolaceh]

I'm not quite sure how to describe what I feel for Adam. Respect, definitely. Admiration? To some extent. But most of all, strange as it may appear, it feels like love. For a person I've never met, probably never will, whom I've only seen on a screen. You are a treasure, Mr. Savage.

[@damongarner3792]

Thank you for including footage of the mistake. It is refreshing to see the self-own when it could have easily been edited out of "existence."

[@KevinsChili]

I absolutely ADORE these kind of videos from Adam. They are a medicine for my soul. An international treasure. Thank you ❤

[@PropGuru702]

Beautiful French drop there Adam! I love that you're proficient in so many arts.. reminds me of myself!

[@doriWyo]

He is a great teacher...of what NOT to forget!

[@ryan_j_peck]

That little magic trick was so clean that even slowing the video down to .5 speed during the slo-mo I couldn't really see the cap switch hands. Well done!! And the cap looks great too! Much better than the original.

[@Ittiz]

Your videos when you mill random SH like this are my favorite. Keep them coming.

[@heyspookyboogie644]

This was the first of adams videos i've seen where i was more captivated by the filming than the thing he was making. Like the killer shot he got of the first cap drilling attempt, and then when he switched angles and his wrench / hammer were going through their pendulum thing for a while.

[@ThorPalsson]

Going to make an Apple Shrub tomorrow Thanks Adam! Had no idea this was a thing - Glad that it is so super easy to make

[@jamiecruz4421]

Hey Adam! Have you thought about making a better camera support system? Seems like the camera falls at least a couple of times per episode. It's definitely something that is needed and it will also add to the overall betterment of the channel. Thanks!

[@AleksandrMotsjonov]

I am so glad Adam sharing his failures. Thx.

[@linusboden7050]

Love that you still make longer videos, hate that the yt algo only prefers anything shorter than a min today.. so braindead

[@Jack-sf5yp]

Fun ... just plain fun. Makers and Healers ... my favorite people in the whole world. Best 30-min of my day, today. Thank you, Adam & T-Family!!

[@TroubleChute]

Almost fell out my chair was not expecting Adam to whip out a magic trick 😂

[@possumgrits825]

I love that you show the mistakes. They are important learning moment's. Thank you.

[@cowslaw]

"What a great bottle!" "I know, I set it aside!" True love.

[@Josefsson9013]

25:34 Wow that was one clean slight of hand you did there, i could not see the switch at all and i slowed it down to 0,25 on the slow-mo part

[@corrinastanley125]

I alway appreciate a one day build, thanks Adam and the Tested team.

[@peterfox2565]

Having very recently done almost the same thing making threaded plastic end caps for some spare flashlight battery tubes. It is very interesting to see how some one else attempts the same thing

[@djeeno]

I actually spent an entire weekend once researching threads to model a gasmask cap and a replacement bottlecap. it's a surprisingly complex area of engineering. beautiful work. also, my grandfather had a friend who owned a machine shop, they usd to call brass shavings "suicide glitter" due to if it got in your hair or clothes it could drive you to absolute madness

[@Jay22222]

Is it particularly worse than steel or most other materials? I would have thought the factors in determining the chip size/shape would contribute far more to how bad it could be than the material itself. If you manage to get a bucket of it dumped on you that is. (This is clearly generalised and oversimplified, not blanket black and white true)

[@djeeno]

@@Jay22222 from what i understand brass is more prone to produce microscopic chips due to its "grippiness" (as you can see it gripping the tools causing stuttering in the video). steel and alu tend to string instead. note: these are assumptions as I am not an engineer or machinist.

[@Jay22222]

@@djeeno Oh, I’m aware of the potential concerns of machining it, I just think equivalent particulate waste of most materials would be equally unpleasant to deal with in clothing and that machining operation is probably the more significant factor in determining the chips physical characteristics. Obviously highly influenced by one another but... Is brass any worse than an identical particulate made of a different material, even if brass has a propensity towards those characteristics I think the actual operation is probably more influential in determining those properties. You’re not going to get great big chips out of a surface grinder, regardless of material nor will you get a fine particulate from a shaper say, as extreme examples, regardless of material. Anything in between is going to be extremely unpleasant to have a ‘mishap’ with and my point is, I think the operation is a bigger factor in the significance of the ‘mishap’ Unless you were making some thoriated chopsticks with old weld rods or something, then I’d be more concerned about material properties.

[@ScorpiusZA.]

I have looked for channels that do things like lathing. Watching Adam do it is just epic.

[@frojoe2004]

Adam does something embarrassing to which he feels shame. Instead of editing it out and pretending it never happened, he apologizes for us HAVING to witness it. 😂 What a legend!

[@patriottowing4973]

Hilarious 😅

[@StefanGotteswinter]

Dont listen to people. The chuck SHOULD be tight. This is what gives repeatability. It means the jaws sit tight in their guides and the spiral also sits very tight in the body. Deburr and clean, yes absolutely, thats a good thing. It beeing tight? Absolutely a good thing.

[@rambysophistry1220]

So, three things I noticed, two from watching other shows about machining and one from just being a bit fly with chemistry. The first two are; that looks like it could use chamfers, and some knurling would look great and help grip. The second is that you want to get some kind of plastic liner, because acid and that brass are gonna play together like water and paper, and are gonna make whatever you store in that taste like metal and have copper salts, so lining the threads and inside with some ptfe would do wonders for both the taste of what you store and the safety of your beverages.

[@Stalport]

If you look at 25:43, you can see that he added a plastic insert that seals against the rim of the glass bottle so that no brass is exposed to whatever is stored inside

[@pbbbt7893]

I wish we got to see the part where he sourced and applied the plastic liner inside the cap.

[@treborrrrr]

@@pbbbt7893 Probably just stole it from the old bottle cap.

[@rambysophistry1220]

@@Stalport That is a insert at the very top of the cap, I am also concerned about the threads themselves. Really, just a coating of beeswax over the whole thing would be my go to thought, but that might be a little over kill and a ptfe liner for the threads and the inside would be the compromise.

[@captianmorgan7627]

@@rambysophistry1220 True, but the plastic cap should keep any liquid from leaking past to the threads .... assUme-ing that it seals tightly and nothing spills onto the threads when pouring.

[@davidcahan]

That chuck was bouncing all over the place. Then he says (paraphrase}, 'oops, i forgot to lock the tail stock.' Adams ability to be a normal person without trying is underrated

[@Noeland]

Adam fires up the metal lathe and we all just love it!!

[@RobbBoswell]

The slight of hand was the added cap to the bottle.. 😂🤘🏼🇺🇲 nice

[@EvanCops]

5:56 😂 Im glad my camera isnt the only one who misbehaves 😅. Awesome video dude

[@axel_is_gaming]

i love bottles and specific shaped bottles. I think all bottles that are not the standard bottle shape are beautiful.

[@grantclinch2496]

An old school machinist taught me, tighten the jacobs chuck in all 3 holes, it’s surprising how much better is grips

[@MathewHarwood-g5f]

Hey Adam, for a camera angle what about a mirror up above the lathe on a 45deg angle and your phone could sit on the shelf above (like old cooking shows use to do to film top-down shots with film cameras). Or a mirror on a movable arm and the camera stationary in a safe place. iPhone 3x zoom should work great 👍

[@bigmouth0317ab]

So amazing! Truly a master craftsman/maker! I was imagining rounded flutes like a revolver cylinder though

[@bullarmike]

Love the channel Adam. Always a fan. From one machinist to another. When its squealing slow your rpm or increase feed rate. Haha that's what she said.

[@theBrightman]

That was an amazing clean french drop. Especially that close to the camera. Good job.

[@babbagebrassworks4278]

I take a fine diamond hone to the two cutting edges of twists drill and put a tiny zero rake flat on them for brass drilling, then there is none of those screechy grab issues. I have a twist drill set modified just for brass and bronze.

[@petermoore9504]

Funny thing about lathes is sometimes you only get one mistake.

[@DerekHubbard]

Sometimes it's that you get one mistake per work piece. Sometimes one per tool. Sometimes one per hand.

[@talltale9760]

They really scare the shit out of me

[@PikkaBird]

@@DerekHubbard and to add a morbid angle: Sometimes just one, full stop.

[@DerekHubbard]

@@PikkaBird Truth. I knew someone who unfortunately made a "last" mistake.

[@MattOGormanSmith]

@@DerekHubbard Clearly you haven't seen the old training films where a person's entire body has been turned into a turkey ywizzler because they had long shirt sleeves, or were wearing a tie. edit. actually in those old films, they were all wearing ties of course (and smoking a pipe), but they were well tucked in

[@aserta]

I made a couple out of aluminium for a CO2 system for a fish tank and i was majorly lazy in finding out what the pitch was, so i just chucked the bottom in the lathe with some leather and selected the closest by eye (which happened to match perfectly) and watched to see if the cutter met the peaks. While i had fizzy water bottles (reinforced, meant to take CO2 pressure from the get-go) i wish i could find pressure bottles, they're molded with buttress threads. Partly because i've never cut those on a lathe. Rambling aside, awesome bottle cap, matches the bottle's chic aesthetic perfectly.

[@chiparooo]

Machining and Magic! Nice. Thanks for sharing!

[@caleb_dreams]

BRASS BOTTLE CAP, BABY! LET'S GO!!!

[@danthemakerman]

Bespoke Bottle Cap! Love it!

[@timparsons3565]

That French Drop at the end. Well done, sir. I immediately thought of my dad, who passed away in 2020. Same trick, same rough hands, even the same big gold ring. That was an unexpected connection to him. :)

[@karelhoogendoorn]

To turn such a simple object into this... Beautiful!

[@n0follow]

adam is ready to crash post nuclear wasteland's economy

[@frankrino]

Can't wait to challenge him to a game of Caravan

[@smashyrashy]

Not really if it takes half an hour for one

[@ktgame2640]

​@smashyrashy is a joke my guy

[@ThatPNWGuy2024]

@@smashyrashythat’s cut and edited down. More like 2-3 hours I’d say.

[@n0follow]

@@smashyrashy he was getting the crafting recipe, should be easier now

[@32bitDK]

Everything you do Adam are truely amazing to watch.

[@LincolnWorld]

I'm about 6 min in and I'm thinking the next video is probably going to be Adam making a new stand for his camera that keeps falling over. LOL I've been wanting to make some custom screw on lids in Fusion 360 for some glass bottles and 3D print them, but hadn't looked up how to figure out how to match the threads on existing bottles, so this worked out great. I have also be really loving the all the videos as the place that prints all the fake products for the movie biz.

[@vlmellody51]

This was a lot of fun to watch, Adam, and your new bottle cap is gorgeous!😍 Thanks for bringing us along for the ride. ❤

[@douglasthomashayden2566]

12:13 Just a thought: Thank you for showing us how you aligned the thread cutter. I was wondering if it would have made sense to also spin the lathe chuck by hand to a few other positions just as confirmation that it wasn't wavering at all from that center?

[@steve-175]

This was a really great one. A bottle cap ! Too bad we can't have his passion for things, some do, but alot of us don't sadly 😮😮😮😢😢😢😢 We'll done Sir

[@JonarRoman]

Any day I get to see Adam be a mad scientist with his lathe is a good day indeed.

[@DannyBeans]

I like putting these videos on while I work on chainmail - it kind of feels like I'm working alongside Adam. Appropriately enough, I'm making bottle sleeves today.

[@jasmeralia]

Synchronicity!

[@jasonpowley4913]

10:38 gorgeous optical illusion! ❤

[@DieselTjuv]

That was surprisingly satisfying to watch, thanks!

[@OhHeyTrevorFlowers]

If you want to avoid removing your work from the chuck and losing concentricity then it's dang handy to make a center height gauge that sits on your cross-slide. Inheritance Machining has a lovely build video of one.

[@patrickdiehl6813]

Out of all my machine tools I love my lathe the best 👍 nice addition to a very nice bottle!

[@WdyWP]

Looks Great!!!!

[@daveboatman4024]

When I’m polishing something in my lathe, I use an old leather belt to polish with. It holds the polish well and I have 2 different sides to use, one the smooth tanned side the other is the coarse split side of the leather.

[@strawberryoes]

im not even a machinist and i was crying watching this 😅 my spouse yelling "debuuurrrrrr adam debur!”

[@troychristian6635]

I learned this along time ago from my best friends father. You can tighten the chuck much tighter if you tighten it at all three holes.

[@BGP_23]

An idea to help with camera issues when machining. Get a double ball joint Manfrotto style and mount a 92# magnet on each end. Put a metal adhesive disc on your phone or camera. Now, your phone/camera can be mounted on any metal surface; mill lathe, cabinet, rack, etc. Adjustment is pretty unlimited with one knob that locks both ball joints. The magnet holds very well. #Tested

[@componenx]

Very nice! The very first lathe project I did on a full sized lathe was a series of broom-thread adaptors. (I hate the way most brooms have a plastic head to handle interface that doesn't stand up to normal usage!)

[@timkohchi2048]

I modify drillbits for brass and bronze to 0 rake. a few swipes of a diamond hone does the trick, and no drama!

[@Lily-cx1vo]

I love watching you make mistakes. Thank you for sharing that with us, it means a lot.

[@tracy121171]

@Adam Savage's Tested I really enjoy your videos. Would you ever consider making an historically correct crystal skull? It seems like a daunting task but so does every other task you take on. Keep up the great work!

[@joejust9269]

I think I saw them in Home Depot. And they are knurled for outdoor spicket covers😮

[@quirkyqwerssie]

"This cap, it offends me" Is the best way to start a project.

[@AJMansfield1]

How did you fit the gasket? I can see you ended up with a gasket in the clips at the end, I assume that piece was just salvaged from the original bottle? I had expected you'd cut an o-ring groove into the inside corner of the cap and fit an o-ring, but I agree that that that's probably a better solution, since it completely covers the brass and solder and prevents contamination issues.

[@edwardwahnstrom6907]

I am wondering also!

[@DNMNC]

Only just starting out would love to have a workshop at 10% of what he has. Just keep creating great content you always have me taken in.

[@LostButMakingGoodTime]

I love all of the levers and mechanical settings on that mill. Like starting up a steam engine. Or the Wonkamobile! 😅 I can hear Adam… “Hang on, I’m gonna really open her up this time, see what she can do!”

[@RyanTaylor228]

Can we talk about how smooth that sleight of hand was. Nice cap Adam, no cap!

[@dwaynepenner2788]

There is a way o thread by moving the cutter away from the chuck by putting the lathe in reverse so no need to worry about crashing. Joe pie and blondihacks have videos covering this.

[@travislee9396]

Don’t you dare apologize for anything you do man. It’s nice just to watch you do your thing. I understand it’s just you being humble. But man I’ve been watching you for years and even your mistakes have a Bob Ross vibe. Just happy little accidents. Carry on good sir! 6:22

[@ghostbanana271]

Fun fact - Lead free brass can contain up to 0.25% of lead

[@Szlater]

I was very disappointed by the lack of discussion of how he made that cap food-safe. He used solder and brass, both of which contain toxic metals and neither of which react well to acidic liquids (the shrubs he talks about in the beginning contain not only fruit juice but vinegar too). I see at the end that he has placed a piece of plastic in the top of the top, presumably to prevent liquid leakage, but not mention of this was made. I hope that anyone thinking of copying him does a little research of their own.

[@garthor]

@@Szlater Early on in the video he does say he's going to solder the top piece on, but later on in the video it looks like he actually does a pressure fit with the vice. The actual clip is only a second or so long of him doing the pressure fit. Not sure about the plastic insert though... seems like that doesn't get covered at all. Wonder if he'd considered the lead content of the brass at all... that'd be interesting. I'm always kindof interested in stuff like this, 'cause I see a lot of makers on youtube do food-related stuff, but then almost never say where they got their materials or anything about food safety... except for maybe when they are talking about food safety with resins (like peter brown/shoptime)

[@2testtest2]

​@@garthor He does indeed seem to press it on, but also keep an eye on the interior afterwards, and you can see the solder. Also the tell tale discoloration of the brass, indicating it was heated to a high temperature. I honestly don't understand why he didn't just make it a solid piece though. It shouldn't be that big of a deal to make an undercut at the end of the thread for the plastic seal piece to sit, and it's not like he took advantage of the two piece design, and put the seal in before pressing them together either.

[@kylemilford8758]

​@2testtest2 it is much more work, accurately drilling, setting precise stops for the threading, and then needing to be at an exact depth to fit the bottle. I would have preferred to see him tackle the challenges but I fully understand why he went this way instead

[@2testtest2]

@@kylemilford8758 I get your point, but think you might be overestimating the difficulty in doing it as a solid piece. He could have drilled and bored it to a very approximate, but exessive depth, just like he did, then come in with the grooving tool and made the undercut before threading. This is the standard way of turning internal threads, because it grants some leeway in when to stop the tool. He might not have the right tool for this, but if he cut the thread in reverse (starting inside the hole, and cutting outward) it would be even easier than what he actually did. Then after cutting the thread, he could face the piece to lentg, to suit the threads on the bottle. Finally part it off long, turn it around and cuck it back up for the rounded shape on top. No need for soldering or press fits. Thinking about it now, maybe he doesn't have an ID-grooving tool. Then this method would not be possible.

[@goober24787]

I’ve been a fan of Adam and his brilliant quirkiness:) since the beginning days of MythBusters. he has inspired that maker mindset that we all have, And enjoy, while having the opportunity to watch him, build some obscure quirky thing. I’m grateful that he continues to put out Content:) keep inspiring buddy.

[@s.h.v.c2865]

I did see you added a the plastic seal to the cap, but I would be very hesitant to make a cap that would come into contact with acidic liquid (like shrub) out of brass, as many brass alloys contain lead (eg 360 free machining brass is 3% lead) that could leach out. Unless you specifically chose a low lead brass (which can still potentially contain lead), I would've gone with aluminium (which is what the original cap is made from haha). Probably isn't as big a deal as using a lead crystal (24% lead or more!) decanter for long term storage with constant contact, but still. The bare brass could also just get corroded and go green and nasty anyway, from direct contact and from fumes, completely seperately from any concern about lead.

[@robo5013]

I doubt the liquid will be in the bottle long enough for lead leach to be a concern. Lead in small amounts is only really dangerous to children's developing brains. In an adult you would have to ingest enormous amounts of lead for it to be harmful. Even moderate amounts of lead will possibly lead to erectile dysfunction in men. The amount that may come from that bottle cap will be so infinitesimally small that it will not harm adults, who would be the only ones drinking anything stored in it.

[@cghn2714]

That was well worth watching, knowledge gained.

[@jwigum]

Adam! You’ve got a couple Bambu printers ready to churn stuff out… Is it time to ditch the flex arms and print magnet fixtures for all your shooting angles? You could deploy a couple magic arms for the areas where you’ll need some play. Time to say goodbye to that wobble!

[@MakeitZUPER]

I knew the tailstock wasn't locked as soon as I saw the endmill wobble, lol. Didn't you hear me yelling at you from the east coast? lol.

[@klehma]

There is no such thing as failure only the making of parts for future builds!