Sabitlenmiş Tweet
Directed Energy Deposition is such an under developed additive manufacturing technology.
E-mot@LaserWelderPlo
モヤる人の為にこちらもご用意しました💁🏻♂️ 是非ご賞味ください。
English
Patrick Tash
1.4K posts
Patrick Tash
@PatrickETash
Mechanical Engineering PhD student @ CU Denver previously @yorkspacesystem, @HB_robotics additive manufacturing research / homebrewing
Denver, CO Katılım Ocak 2021
498 Takip Edilen201 Takipçiler
I was getting conflicts with my load cell boards (all nau7802) and I found that over stemma QT (i2c) they are all registered at the address 0x2A so my main board couldn’t differentiate between them
might seem obvious to some, but it wasn’t to me. a mux is on the way!
Patrick Tash@PatrickETash
First make it work, then make it pretty.
English
@i2cjak Learned this the hard way, tried to daisy chain multiple nau 7802 boards only to find they share the same address…
English
there’s nothing to master you just tell the LLM to do it
i2c devices share lines. one master, slave devices have an assigned address. It’s slow.
spi is faster and, while can be multi-slave, requires n+3 control lines total
uart just works. Make sure u have pull-ups
Mustafa@oprydai
if you’re getting into embedded systems, learn these protocols in this order: 1. i2c two wires. many devices. perfect for sensors, displays, rtc modules, eeproms master/slave architecture simple to wire, easy to prototype this is where most beginners should start. 2. spi much faster than i2c separate lines for data in, data out, clock, and chip select ideal for displays, sd cards, high-speed sensors more wires, much higher performance when speed matters, spi wins. 3. uart point-to-point communication tx + rx no clock line used for debugging, gps, bluetooth modules, microcontroller communication if you’ve ever opened a serial monitor, you’ve already used uart. learn them in this order: i2c → understand device communication spi → understand high-speed peripherals uart → understand serial communication and debugging these three protocols are everywhere. master them once, and you’ll find them in almost every embedded system you build.
English
Is this like a $19/mth thing or $99/yr thing? You know it’s good when they don’t offer a monthly
The Hormuz Letter@HormuzLetter
BREAKING: Trump Media to sell "faster millisecond access" to Trump's Truth Social posts starting August 1, letting traders, hedge funds, and high-frequency trading firms pay for real-time millisecond access to Trump's Truth Social posts. This comes a day after Iran calculated $9 billion in profits from market manipulation by Kushner and Witkoff through insider access to Iran negotiations.
English
Patrick Tash retweetledi
@_baldtires You know that’s some *tonnage* when you can see the layer lines in the part itself
English
@DabsMalone I thought this exact thing when nTop crashed last week (multiple hours of work) but when I reopened there was this option to try to recover the last session.
It worked to my astonishment. I love that program.
English
@DavidBGrys I just discovered this method this week, kudos to you!
English
@PatrickETash Have been doing this for many, many years :)
English
kapton tape is super underrated for holding headers in place while soldering
no residue, heat tolerant, and very strong
English
I would be digging ditches
doomer@uncledoomer
the german system where they identify early which kids are gonna be aerospace engineers and which kids are gonna be ditch diggers and separate them into different schools that better suit their aptitude or lack thereof is an infinitely better system than "no child left behind"
English
@cosmosarcive one of my favorite alloys is kovar (iron nickel alloy) which was tuned to perfectly match the thermal expansion of glass so that it can be used in glass-metal joints without cracking
nitinol on the other hand is just straight up black magic
English
Alloys are mixtures of two or more elements, where at least one is a metal. They are made to improve properties such as strength, hardness, corrosion resistance, and durability compared to pure metals.
This chart summarizes the composition of some common alloys. Focus on the main metal first, then remember the element added to it. For example, brass is copper and zinc, while bronze is copper and tin. Recognizing these patterns makes alloy compositions much easier to remember and helps in chemistry exams.
English
real jobs I’ve had:
selling costco candy on the bus
lawn mower
car detailer
sign painter
estimator at a sign shop
forklift operator at office depot
pancake artist
manufacturing business owner
fake jobs I’ve had:
selling radio advertising
b2b saas
em m0shouris@emm0sh
real jobs i’ve had: cook (pretzels at auntie anne’s in the mall) cashier bus boy computer repair technician drywaller receptionist advisor VJ tutor engineering at amazon fake jobs i’ve had (i quit each one): engineer at the iphone team engineering manager engineering director
English
Patrick Tash retweetledi
if people are seeing much more stuff from their moots, then retweets become far more important for discovery
English
I have some big news... I'm going on my first ever factory tour next week!
@voltera_io invited me to come see their office, factory, and a new Alta pick and place machine!
They said I will be allowed to film and ask a bunch of questions. So if you want me to ask anything, let me know!
You have no idea how excited I am for this, touring factories is literally a dream of mine.
English
@emm0sh Nothing teaches you more about time management and accepting your circumstance than being a Busser.
English
real jobs i’ve had:
cook (pretzels at auntie anne’s in the mall)
cashier
bus boy
computer repair technician
drywaller
receptionist
advisor
VJ
tutor
engineering at amazon
fake jobs i’ve had (i quit each one):
engineer at the iphone team
engineering manager
engineering director
English
@_baldtires Hmmm. Well I’m curious, seems like yours is doing something materially better
English
More test dies on the printer. Once again we're predicting more wrinkling than Altair and i bet we're right
Peter Holderith@_baldtires
Our in-house instant-quote sheet metal stamping sim vs Altair vs the real formed part. We printed another in a series of verification dies to see how good our sim is.
English
@andyfang Remind me to search Google trends in 3 months for
“how to cancel a $1,000 openclaw McDonald’s order QUICKLY”
English
Today we're opening up the DoorDash CLI in limited beta.
`dd-cli` lets you order DoorDash directly from your agent: search stores, find the best deals, check out, and more.
Early access for US/Canadian macOS developers by waitlist. Excited to see what folks build!
English
@CalebChamberla6 Can’t imagine how much iteration must’ve went into getting all of these systems working so seamlessly
English
As a rule, the first person who looks at your part is the operator pulling it off the laser, after it's been cut. All the usual office, scheduling, ordering, invoicing, and data-entry overhead is 100% automated. The result? You get quality parts for an insanely low price.
English
About 10% of incoming orders are now on the new "standby" lead-time. Most are shipping a week or more early.
These are so low priced that just two minutes of office work would make them unprofitable.
It's only possible because of a couple dozen in-house SW/process innovations.
Caleb (OSH Cut)@CalebChamberla6
Introducing "standby" production. Still faster than traditional shops, faster than Xometry, and lower cost than China. You can now order parts for single-digit dollars and stop by either of our two US factories and pick it up. Or we can ship it to you. @OSHCutInc
English