Richard Sewell

@UPS_UK - your useless driver abandoned a huge (and valuable) parcel on our front path, and didn't even knock on the door. You're meant to actually deliver the parcel, not just chuck it out of the van. Hopeless.

@KennethCassel A thing I have discovered over the years is that drill boxes last much longer than drill bits, so now I'd buy the ones that come in a metal box.

comments boil down to - yea I agree it’s annoying - you bought the wrong tools - hahah wow you got soft hands brother / skill issue

@cafreiman No.

If it’s unfair for a CEO to receive 100x more money than others if they aren’t working 100x harder than them, is it unfair for Bernie Sanders to receive 100x more votes than other politicians if he isn’t working 100x harder than them?

Fun!

Hire Jonty. He will make everything better.

@SighSam That looks like it's a long way up.

Nearly there. 🚲 ⛰️

@asta_darling I'm not sure that's a story you really want to be in. Ended badly for many of the participants.

Sorry what 😳😱

@nfinf5 @NydkPols @gak_pdx @octal This is not so much about how strong they are as it is about how certain they are to be as strong as they are meant to be.

@NydkPols @gak_pdx @perrymetzger @octal Depends on how crummy, no? Normal bolts are not crummy, they're just normal. If normal bolts are e.g. 50% worse than fancy bolts, then 4 normal should be the same as 2 fancy ones. As for new point of failure, I'd rather have 1 of 4 bolts fail than 1 of 2.

Fun fact; In the outskirts of Portland is a nice little shop in an anonymous industrial park. You walk in to a little foyer with a folding card table and 9 thick, vacuum sealed Mylar bags, each about 1' long and 4" in diameter. They are sitting on top of about 70 pages of paperwork. This is the entirely daily production of this facility. Inside are a bunch of old Mori Seiki NLX lathes - the old ones, before Mitsui bank let Dr. Mori train wreck the company with the DMG merger. Aside from a little wear on the interior paint, the 7 lathes look like they just came out of the showroom. In fact, the whole place looks like a machine tool showroom - spotlessly clean, with a thick, perfectly level urethane floor that a product photographer could use as a mirror white background plane in an Apple ad. There are a few big things in our lives that are literally held together with a couple of fasteners. One example; every Boeing and Airbus engine is held onto the wing by only 2 bolts, and this is the shop that makes them. Boeing and Airbus both require multiple suppliers for critical components, so this is not the only shop that makes these bolts, but the nearest competitor is in Seattle (close to Boeing, but far enough away that the Cascadia Subduction Zone quake won't take both out). The shop bay next door is equally clean, but contains a vacuum furnace and the most through inspection lab I've ever seen. X-ray and magnetic particle inspection, CMM, optical comparators. In the corner is a cherry red custom painted Lista cabinet where raw blanks are stored. An identical Lista cabinet in Green is at the opposite side of the shop. Raw material comes in, gets inspected, heat treated, inspected again, and moves from the Red to Green cabinet, collecting about half the paperwork along the way. The blanks take about 3 days to go from a cylinder of Sandvik or Thyssen-Krupp steel into a bolt. One machine, the oldest, is used to rough the blank into a pair of concentric cylinders, the second oldest machine roughs the hex head, before the bolt is stress relieved and allowed to rest for 36 hours. Another machine finishes the hex and applies chamfers, these are final surfaces. The final step is the threads, where things get interesting. They are cut in 3 steps; roughed, semi-finished, and finished. The secret sauce here is that a new insert is always used as the semi-finisher, and the semi-finished state is very very carefully measured to compensate that exact insert. The final finishing pass is taken in one (surprisingly healthy) hit using the data from the semi-finishing pass to be on-dimension within about 2µm. The key insight they had is that you get a better surface finish off of a tool that has already taken a couple of cuts. The threads look like you wrapped a mirror around a spiral staircase; their process is so dialed-in that their work competes with thread-grinders for dimensional and surface quality. Even so, just before inspecting with old-school thread wires at the machine - the guy running the lathe spins it at about 500rpm and reaches in with a Bright Boy stick and touches them up, runs his fingers over them, and gives them the most important QC they'll receive. This guy has been on this machine for 15 years; nearly every aircraft passenger aircraft in the sky is held together by at least one bolt that has passed his touch inspection. Of course, the engineers in Renton or Toulouse won't just accept that Mitch in Gresham touched this bolt so it is good... so whole reams of paperwork are geared by regularly calibrated Zeiss metrology gear that does a complete dimensional inspection, another magnetic particle inspection (3 in total), and an X-ray. Having said that, Mitch rejects more than Zeiss does (about 2-3%). You want to pay more than $45 for each of these bolts.

@AnotherHowie I've had fancier CA glue in the past that had a steel pin built into the inside of the cap. So, maybe ?

Is there some alternate timeline where I *don't* have to ream out the nozzle of my CA bottle every time I go to use it?

@kaleider Looks fabulous.

We're at Valoilmiö in Hämeenlinna, Finland for the international premiere of Twist & Shine. 🌟 Not only that: for the first time ever, we have scaled up to a 20+ sculpture installation – in the centre of Hämeenlinna Market Square. 😍🙌 #TwistAndShine #Valoilmiö

@Licia_He @moskovich Not that it necessarily fixes this problem, but you are also free to offer your own contract for them to sign.

@moskovich Exactly!

Note to myself (and my artist friends): if anyone (gallery/platform/curator and etc) wants you work but doesn’t want to give you a contract, telling you that asking for a contract means you are “being difficult” RUN

I want to undertake more projects that combine Arduino/robotics, coding and 3D printing with more traditional crafts (knitting, crochet, sewing). Can anyone recommend makers who do this, that I can follow? I know SheBuildsRobots and PerriKaryal on Instagram... Any others? On any channel (YT, Insta, Tiktok, here, Threads)?

@SighSam I'm crossing all the crossable parts. Good luck!

Please pray to the grant funder gods. We have the team. We have the tech. We have the patient community. We have the experience. LET US COOK. For patients globally. For Great British Engineering. For the economy! Let us cook.

Guys, a couple of weeks after I posted this I was googling and found a grant opportunity... After working with the patient group this summer, I'm more certain than ever that this tech deserves to be built and would have a huge impact. OUR FATE IS DECIDED NEXT WEEK.

@JeremySCook Yes. Might be worth making a super simple program that just does short timed hits, and see if you can find a time that always sounds good.

@jarkman Interesting. That makes a lot of sense, thx! I've got a couple of auto modes where it times the strikes, but the solenoids seem somewhat inconsistent. As you note, this seems like a bit of a tweaky process!

Am I the only one who finds the rude comments on YouTube shorts to be refreshing? Seems like they're not as censored as normal YouTube.

@JeremySCook Once you've done that, changing the texture of the tip changes the tone - a harder tip gets a brighter tone.

@JeremySCook You can do that with just a solenoid by tuning the length of the drive pulse you use - you want to stop driving it before it actually hits. This can be tweaky but is possible. Or you build a mechanical arrangement where the solenoid throws a free-moving hammer at the resonator.

@vicnaum @KennethCassel There's a lot more money in that.

@KennethCassel But first I would like a startup to make better sleep, so I’m not so rekt every day

Still waiting for someone to build a startup to cure our need for sleep trillion dollar opportunity

Fun!

@dinosaurrparty I look forward to your seminar.