Eric 🐇
@Mammoth
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Sheet metal, rabbits, cameras | bnuuy
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This machine is going to unlock a new era of manufacturing and nobody's talking about it
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We have entered the metal fabrication renaissance. Evict your car. Adopt a press brake. Make some cool shit faster and cheaper than you ever imagined.
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ACCELERATE... Literally. The extra degrees of freedom on this tube laser allow cutting of small features an order of magnitude faster than regular systems.
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Because if you have a car, you should sell it. Now you've got the garage space and the money to buy a Langmuir plasma table and a matching CNC press brake. In fact with todays used car prices, you'll probably have leftovers for tooling and a spot welder.
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I cannot overstate what a game changer this is. CNC precision sheet metal fabrication used to be something you'd take a second mortgage to get into, and now you can get a full shop started on a single credit card bill. How fast has this changed?
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Sheet metal parts are everywhere. Your computer case, your furniture, the machines in the factory that makes your food. Like other manufacturing processes, you used to have to build a relationship with a fabricator and spend a bunch of money on your custom parts...
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Enter: SendCutSend. They and other services have done for sheet metal what OSH Park and PCBWay have done for PCBs. Upload your files, instant price, no bullshit. From upload to parts-in-hand in less than a week.
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...Or you'd buy your own equipment to the tune of hundreds of thousands or millions of dollars. Oh, and the real estate and skilled workers to run the machines. But what about the internet?
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But like any online service, they've got rules to follow. One bend radius per material/gauge, a limited catalog of inserted hardware, no formed features, no hems, etc. A small price to pay for the convenience.
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@OgLakyn
@laneybabyart
Not only that, automated soft goods manipulation is famously hard. Textiles will probably one of the last manufacturing processes to be fully automated.
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And if you're too good for plasma, companies like Fablight and Full Spectrum Laser have fiber lasers for SUV money, and it's only a matter of time before they're in the four digit range as well.
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Check out this article from 2020 where they make a big stink about Trumpf offering a budget press brake. It's six digits and you still need an industrial shop. Obviously it's on another level than Langmuir, but that was the floor four years ago.
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And what if you want to break the rules? You want louvers and hems and thread extrusions. You want the ultra-thin sheet PEMs and the thin steel to match. Back to the local shops that have a million jobs to run before they even see your email, right? Well, do you have a car?
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@JonathanDrake
Yeah maybe "nobody" is an exaggeration. 🤭 (Who ever did that on Twitter?) Looks like a lot of people got to be one of todays lucky 10,000
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It was cutting a bunch of pieces that snap fit by hand into this crazy ball.
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It's a bummer that those have lead in them. Anyways, here's the wild story of how I made $0 but 100x'd production speed of face shields with a cordless drill during the COVID lockdowns by rapidly creating a manufacturing jig in 7 days.
This is the wild story of how I made $1,036,175 during the COVID lockdowns by rapidly creating a new physical product in 7 days.
In April 2020, during the lockdowns I created 2 things that changed my life:
1. – I launched Shepherd (eventually renamed Somewhere[dot]com). 4
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I'm not 100% sure but I'm pretty sure I know 1) Why steel gauges aren't really that random, 2) Why none of the different materials have the same thickness per gauge, and 3) Gauge is even weirder than you might think... 🧵
eradicate the gauge system for metal
12ga stainless and 12ga aluminum are two different thicknesses
insane system
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@andrew_ventura
@ACES_thatsus
450k covers the entire project including design, site prep, materials, labour, etc. It does seem high to me but not as much as you'd think.
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Other example parts. Tube lasers are fairly niche which is a shame because they can unlock a lot of manufacturing power. The cost savings of tube stock, the design freedom of laser cutting, and the high mix of automation.
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Manufacturers put a list of design rules and constraints on their website instead of making me redesign everything after their manufacturing engineer finally opens the files (impossible)
manufacturers put a price on their website instead of forcing me to get on a call with them challenge (impossible)
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@83dollaroring
Undisputed champions at cutting metal, nowhere close to the podium for responding to RFQs or doing low volume/high mix
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One of my DEFCON highlights: Having my badge QCed and stickered by the
@strangepartscom
crew. Still waiting for the 99.99% genuine inspection report 😉
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@themitch22
Yeah I mentioned it somewhere else but in most cases this will revolutionize small job shops rather than in-house fabrication. A press brake on every block!
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As far as I'm aware, OSH Cut is the only instant quote sheet metal service that offers tube laser. I hope that changes soon.
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Why didn't anyone tell me that mechanical engineering was just shopping for connectors.
Why didn't anyone tell me that electrical engineering was just shopping for connectors.
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@chelscore
@MissGinaDarling
I am now going to benchmark my lifting by rabbits instead of plates.
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@RM_Transit
This station is beside a public golf course that has cross country skiing trails in the winter. Supposedly one of the only cross country skiing areas in North America with direct train access.
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@__drewface
That book is the reason for my username. (Fave animal until seventh grade when I discovered rabbits)
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Pro tip: If you're making things out of thinner gauge mild steel, look at G90 galvanized steel. Sometimes it's cheaper, and for use in dry environments you can often get away without having to powder coat or paint.
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@RealVladG
@vxunderground
At this point I think it's just hotel capacity. Not many cities in North America can handle a sudden burst of 30k+ visitors
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@BenderDrummer
Got a link/pics? 👀👀 I've seen 3-in-1 manual brakes and small but still very industrial CNC brakes, but nothing like this.
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@EERandomness
Ah, but you may well be ordering the parts from someone down the street with this press rather than Sendcutsend. I just made an order with them and it won't ship until the 12th.
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@SethLikesTrains
Every time I do it I'm convinced that the proper way is something else and I'm a total moron and the locals are all laughing at me.
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@mattparlmer
Doesn't help that they hide behind "Request a Quote" bullshit. If it's a stock item then where's the price tag?
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I'm in the Casino Royale food court. Behind me, a slot machine blares the Oompa Loompa song. The bar is playing Major Tom. I have a foot long hot dog and a free beer as I browse McMaster Carr on bootleg WiFi from the Denny's next door. I have never felt so alive.
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Have you ever wanted to spend $3 million to have a 22-year-old give you a PowerPoint of quotes from The Art of War?
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Of my many classmates from engineering school that moved to the US for work, almost none have moved back. Maybe I should join them. 🤔
I've written a lot on the US having the fastest GDP per capita recovery in the G7, but ppl often ask what it looks like adjusted for Purchasing Power Parity
We just got 2023 data—the US is still ahead!
2019-23 Growth:
🇺🇸+6.0%
🇮🇹+5.2%
🇯🇵+2.9%
🇫🇷 +0.4%
🇬🇧 -0.5%
🇩🇪 -1.0%
🇨🇦 -1.6%
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I never understood why steel gauge thicknesses looked so random. Inch, mm, cubit... all nonsense. That is, until I looked at a weight chart. Pounds per square foot of mild steel! Makes sense when you're buying by the coil.
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The laser in the video is by BLM Group. I forgot to write down which model it was but I think it's an LT7.
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Why does aluminum use AWG instead of weight per area, or just being similar to steel? Well... I have no clue. But now you know where the numbers come from. They're not random, they're just really annoying!
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I hope she's got some Nordlocks on that table
Woman set up a table for First Friday in
#PortlandME
this arvo to share her collection of washers. Nothing was for sale. She was happy to describe any and all of them. These are so my kinda humans.
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@supersat
@TC_Johnson
@SecureThisNow
@defcon
That con was Teardown and it was really fun. It's not the craziest idea to use an entire mall, though. Each store could be a village. The real problem is hotel capacity for 30k+ people.
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What sheet metal topic should I yap about next? I'll cover all of these eventually. Descriptions in 🧵
Hand & 3D printed tooling
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Save $$ ordering online
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Sneaky design tips
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Convert 3D printed part
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@legoruthead
Any time I see someone driving a new car I think to myself "Damn they could have started a job shop instead"
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@RealFrogchin
@cirkelnio
Foundations of Mechanical Accuracy. A PDF scan is one of the top Google results. A first edition is one of my grail items.
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@thorstencs
@OskariOinonen
@GreenpeaceUK
They're LCDs but daylight brightness models. They consume a lot more power to be bright enough to be seen in full sunlight. More expensive than OLED since they're rated for 24/7 use and ruggedized. Also some extra power for the computer driving them.
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Stainless steel is pretty much the same as mild steel. Phew! There's no appreciable difference in density in most steel alloys.
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@Virgokilla0922
@6ixbuzztv
Just watched this episode today, Hank did not hold back in this scene 🤣
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@jimbelosic
If I type "s" into my browser address bar at work the first suggestion is the page for G90. 😉
Might I suggest adding some diagrams explaining some of the bending properties? E.g. Minimum flange length: measured from the outside or inside? That's tripped up my coworkers.
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Galvanized steel is different, what gives? Well, they just take the mild steel and galvanize it. The coating adds some thickness and weight. Usually the difference isn't enough to care about. However 20ga galvanized can often take PEMs that 20ga mild is too thin for... 😉
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But what about aluminum? Those numbers might look familiar to our electrical friends: American Wire Gauge! Each change in AWG is a 1.12293 multiple of circular cross section. Diameter is a byproduct, and it's the same used for aluminum sheet thickness 🤯
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Gauges all have tolerances since reality isn't perfect, but what's really fun is that sheets don't even have the same thickness across their width! The rollers that squeeze them to thickness will flex outward in the middle.
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@NCressman
@IanRunkle
It's not just capacity, it's US export laws that make it a bad idea. And since C-21 importing parts into Canada is probably dicier than it used to be, even if it's legal by the letter of the law.
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@CobraEconomics
@LouisvilleGun
Precision and speed, mostly. Even just the fact that it uses precision ground tooling is a big difference compared to manual brakes.
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@acheronix
@asingleoat
Don't tempt me... I've got a day one preorder on that press brake and a 400sqft studio apartment. And no car.
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@servomechanica
Not me using the OSH Cut 3D simulation for my DFM reviews and never ordering because they don't ship to Canada 🫣
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@Fabius1453
Yeah you got it. It's not comparable to the multi million dollar setups in precision and quality, but it's probably 90% or so, and that's plenty for most applications.
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