#stackup

[mjikthize]

For the 2024 CallToArms campaign I did 3 StackUp themed Pet Toy Decorations from Warframe. STL files will be free to download on Cults3d soon. Thank you stackup & warframe

[quackity1999]

anons i'm obsessed with you all

[ OOC: me too. its such whiplash going from like . getting an ask that's intentionally cruel @ quackity and then above it theres like "i fart.ed" ans its like SURE BUDDY I GET THE VISION HERE I RLY DO ]

[preemptive-absoluution]

update (6437 weakness)

BROOOOOOOOOO

[perlina-hitechcircuits]

Tips for PCB Stackup Layout

With the continuous emergence of high-speed circuits, the complexity of PCB boards is also getting higher and higher. In order to avoid the interference of electrical factors, the signal plane and the power supply layer must be separated, so it involves the design of multilayer PCB, that is, the design of laminated structure.

1. Avoid Direct Connection of Two Signal Planes

In a multilayer PCB, it usually includes a signal plane (S), a power plane (P) plane and a ground plane (GND). How are the three arranged?

Power and ground planes are usually undivided solid planes that provide a good, low-impedance current return path for current from adjacent signal traces. Therefore, the signal plane is mostly adjacent to the power plane or the ground plane. Moreover, the power supply layer and ground plane use a large area of copper (so the power supply layer and ground plane are also called copper layer), and the large copper film can provide shielding for the signal plane, which is conducive to impedance control and improvement of signal quality.

In addition, should try to avoid two signal planes directly adjacent to each other. Crosstalk is easily introduced between adjacent signal planes, resulting in circuit failure. Adding a ground plane between the two signal planes can effectively avoid crosstalk.

2. Most Top and Bottom Planes are Signal Planes

The top and bottom planes of a multilayer PCB are usually used to place components and a small number of traces, so they are mostly signal planes. Generally, the top plane is the component, and the bottom plane (the second plane) of the component can be set as the ground plane, providing the device shielding layer and providing the reference plane for the top plane wiring.

In addition, note that these signal traces on the top and bottom planes cannot be too long to reduce direct radiation from the traces.

3.Reference Plane Preferred the Ground Plane

Both the power plane and the ground plane can be used as reference planes and have a certain shielding effect.

The difference between the two is that: the power supply layer has a high characteristic impedance, and there is a large potential difference with the reference level; while the ground plane is generally grounded and used as a reference point for the reference level, its shielding effect is much better than that of the power supply layer.

Therefore, when choosing a reference plane, the stratum is preferred.

4. The High-speed Signal Layer is Located in the Middle Plane of the Signal

The high-speed signal transmission layer in the circuit should be the signal intermediate plane and sandwiched between two copper layers. In this way, the copper film of the two copper layers can provide electromagnetic shielding for high-speed signal transmission, and at the same time, it can effectively limit the radiation of the high-speed signal between the two copper layers without causing external interference.

5.The Power Plane and the Ground Plane are Preferably Paired

The power supply layer and the ground plane appear in pairs, shortening the distance between the power supply and the ground plane can reduce the impedance of the power supply, which is beneficial to the stability of the power supply and reducing EMI. In particular, the main power supply should be as adjacent to its corresponding ground plane as possible. In the case of high speed, you can add extra ground planes to isolate the signal plane, but it is recommended not to add more power planes to isolate, because the power plane will bring more high-frequency noise interference.

6.Copper Layer Balance Design

The copper layer, that is, the power plane or the ground plane, is best arranged symmetrically, such as the second plane and the fifth layer of the 6-layer board, or the third layer and the fourth layer should be copper-plated together, which is considered to be flat and horizontal in the process. Structural requirements, as unbalanced copper layers may cause warpage as the PCB expands.

7.Multiple Power Planes away from High-speed Signal Planes

Multiple power supply layers should be kept away from high-speed digital signal wiring. Because the multi-power supply layer will be divided into several physical regions with different voltages, if the signal power is close to the multi-power supply layer, the signal current on the nearby signal layer will encounter an unsatisfactory return path, making the return path A gap appears.

8.Use Even-numbered layers

The classic PCB stack-up design is almost entirely even-numbered, not odd-numbered. Even-numbered layers of printed circuit boards have cost advantages, and even-numbered layers are more resistant to board warpage than odd-numbered layers.

9.Arrange Routing on Adjacent Layers

In order to complete complex wiring, the transition between layers of traces is inevitable. The two layers spanned by a signal path are called a "routing combination". The best routing combination design is to avoid return current flow from one reference plane to another reference plane, but rather to flow from one point (surface) of one reference plane to another point (surface).

Therefore, wiring combinations are preferably arranged on adjacent layers, because a path through multilayers is not clear for return currents. Although the ground bounce can be reduced by placing decoupling capacitors near the vias or reducing the thickness of the dielectric between the reference planes, it is not a good design.

10.The Routing Directions of Adjacent Signal Planes are Orthogonal

On the same signal plane, the direction of most wiring should be consistent, and it should be orthogonal to the wiring direction of adjacent signal planes. For example, the wiring direction of one signal plane may be set to the "Y-axis" direction, and the wiring direction of another adjacent signal plane may be set to the "X-axis" direction.

On the other hand, how to do impedance control is a headache for many users, but Hitech Circuits makes everything so easy. Hitech Circuits will automatically calculate the line width and line spacing corresponding to different impedance controls according to different stacks, so as to do impedance matching for the user, without the need to perform complex impedance calculations manually, saving effort and worry!

[jalina268]

Multilayer pcb is circuit boards composed of two or more conductive layers (copper layers). The copper layer is pressed together by the resin layer (prepreg). 

King Credie manufacture multilayer pcb up to 32 Layer ,We accept pure single material or mixed-press materials ( e.g., FR4,Rogers,Polymide,metal Core).

[andmaybegayer]

OP is that a split ortholinear keyboard in wood casing and moss colored keycaps!! i am absolutely boggling my eyedbarls in excitement i have wanted an ortholinear keyboard for ages (purely aesthetic, i like how the keys line up) but never committed and i would love to observe your beautiful Keyed Boared.

You can find the history of that keyboard in the #galena tag on my blog, it's a custom job that's kind of still in progress. I'm currently planning to upgrade it to wireless, switch to low-profile switches, and maybe incorporate some kind of tenting capability.

The case is cut from a block of ironwood by hand and the plate is laser cut brass, the switches are Kailh Box Light Blue which are so very loud and I'm not sure if they're good but they are clicky.

If you have the ability to get laser cut acrylic and optionally metal, key switches, wire, and a microcontroller a custom keyboard is shockingly achievable, the honorable acrylic stackup is a very quick way to make one of these.

[javert]

I HATE DOING TOLERANCE STACKUPS [my psychic powers cause a nearby mcmaster carr catalogue to explode into its constituent pages]

[nostalgiclittlespace]

Characters I want added in Mario Kart World

Fun fact: I’m a huge video game nerd who is very excited about the upcoming Nintendo console+Mario Kart 9. Given the expansions from 12 to 24 racers per match, Nintendo has really been bloating the cast by throwing in the most obscure characters anyone has ever heard of into the game. (Pokeys? Cows? The BONE FISH???)

So here’s a complete list of all the characters I would personally love to see added to the game—as far as I know none of these are confirmed cast members. I marked any characters that are not from main line Mario games

E.Gadd (Luigi’s Mansion)

Goo-igi (Luigi’s Mansion)

King Bob-omb

Cappy

King K Rool (Donkey Kong Country)

The Critters (Donkey Kong Country)

Funky Kong (Donkey Kong Country)

Cranky Kong (Donkey Kong Country)

Snifit

Prince Florian

ROB (NES: Gyromite, Stackup) Homeboy appeared in Mario Kart DS—GIVE HIM BACK I BEG YOU NINTENDO

Monty Mole

Boo

Ninji

Toadsworth

Captain Toad

Luma

Boom Boom

Goomboss

Baby Yoshi

Fire and Boomerang Bro—Hammer Bro has been confirmed but I would love to see all three as ‘outfit/color variants’

Flutter

Crossover Picks:

Kirby (Kirby)

Fox McCloud (Star Fox)

Samus (Metroid)

Captain Falcon (F-Zero)

[lordvermire]

Happy Thanksgiving!!!!!!! And its the final day funding for Stackup!!!!! Please donate any amount if you can!!!! We will be playing Jazzpunk before I must leave!

[ilikekidsshows]

"I can see their parachutes, they're okay"

*laughter*

That's how you know something's no longer an issue, when the characters play stackup with them

"My honor orb will show you your folly!"

[morepcb1]

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No matter your application, our team works closely with you to understand your technical requirements and deliver boards that exceed expectations.

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Whether it's high-volume orders or through hole PCB assembly projects with complex layouts, our goal is to deliver zero-defect PCBs that perform flawlessly in their intended environment, every single time.

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Let me know if you'd like this adapted into a landing page, brochure copy, or SEO-optimized blog!

[rigormorta]

Hello, my little creatures~! I'm fundraising for StackUp: a charity dedicated to the betterment of mental health for our veterans and advocating for mental health awareness for the people. If that's a cause that resonates with you then please consider donating here: Morta's Charity Campaign

[viasiontechnology]

Dive into the complexities of 10-layer PCB stack-up with this comprehensive guide. Viasion outlines key design principles, layer configurations, and considerations to ensure optimal performance, signal integrity, and reliability in multilayer board designs.

[ppcseo]

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[beantpcbcircuits-blogs]

Standard 2-layer PCB Stackup

A Standard Two-layer PCB stencil typically consists of a top layer for component placement, a bottom layer for routing traces, and a core layer in between for signal transmission. This configuration offers balanced impedance control, ease of manufacturing, and cost-effectiveness for a wide range of electronic applications.