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102 lines
4.5 KiB
Markdown
102 lines
4.5 KiB
Markdown
# Sourcing parts
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Welcome to part sourcing! Here's a ton of tips for you to optimize your part selection & costs!
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If you're ever unsure of your BOM, send it in #highway! People can definitely help you pick better parts and make better decisions.
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## Overview
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When picking parts, PLEASE be resourceful! Make the most out of every dollar and don't take the entire budget just because you can
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#### Do's
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- Lots of research into what parts to use!
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- Ask in #highway for advice on picking parts
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#### Don'ts
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- Buy a $100 Oscilloscope
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- Buy extra parts for "later projects"
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- Buy a $40 module on amazon instead of waiting 2 weeks to get it for $5 instead
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At the end, everything should be in a BOM with links to specific parts.
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## Specific parts
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### General
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Generally speaking, try to reference parts off of other projects since you'll eliminate more unknowns with the hardware
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### Modules (TP4056, LED matrices, etc)
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Almost always the cheapest option is to get it from AliExpress; the only downside is that shipping *may* take awhile - usually a 2-3 week buffer is safe.
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If you're in a pinch, Amazon actually has OK prices all things considered. I would avoid it though, unless you're going to miss Undercity if you don't use them
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### SBCs (Raspberry Pi, Orange Pi, etc)
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Raspberry Pi
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You can get Orange Pis from aliexpress.
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Depending on your application though, you can also repurpose old laptops/desktops for your specific application if it's not space-sensitive
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### Microcontrollers (arduino, RP2040, etc)
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AliExpress is still usually your go-to for this!
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Arduinos are fairly outdated by todays standards
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### PCBs
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- If you're in India, use [SEEED Studio's Fusion Service](https://www.seeedstudio.com/fusion_pcb.html). They take HCB cards and are by far the cheapest option
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- If you're from another country, use JLCPCB, they offer PCBs for under $6 shipped as long as its under 100x100mm
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- If you're from the US specifically, use PCBWAY. They're roughly half the cost of JLCPCB because they're able to avoid tariffs somehow
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- Read here: [link](https://www.pcbway.com/blog/News/Impact_of_the_New_U_S_Tariff_Policy_on_Customs_Clearance_51dff4fd.html)
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### Batteries (Li-Po, CR2032, AA, etc)
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## Country Specific Notes
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### Egypt:
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#### Parts
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- Egypt has a store called RAM Electronics, which holds a certificate from Cytron, and it offers products at a significantly lower price. ([link](https://www.ram-e-shop.com/))
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- Additionally, there is Flux Electronics, which offers a wide range of 3D printer Parts and a vast selection of electronics. ([link](https://fluxelectronix.com/))
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#### 3D printing service
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- There is Printfy3d, it accepts HCB cards, and it is a good choice. ([link](https://www.printfy3d.net/3d-printing))
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### India:
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- Most vendors do not take international cards [cards issued outside India], which unfortunately, HCB falls into the category of. Contact your local vendors to try to get that changed!
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- Here are some vendors that are documented to work with HCB cards currently, segregated into categories
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* Electronic parts (RPIs, modules, power supplies and the like)
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* [Silverline Electronics](https://www.silverlineelectronics.in/)
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* [RoboSap](https://robosap.in/)
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* [RoboticsDNA](https://roboticsdna.in/)
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* [EBhoot](https://ebhoot.in/)
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* [Electronicscomp](https://www.electronicscomp.com/)
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* [Sharvi Electronics](https://sharvielectronics.com/)
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* [Novo3D](https://novo3d.in/)
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* 3D printed parts (3D printing as a Service, JLC3DP-alike)
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* [3Ding](https://www.3ding.in/)
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*
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> confirmed more vendors? wanna add specific notes for your country? contribute [here](https://github.com/hackclub/highway/edit/main/app/views/advanced/part-sourcing.md)!! You'd be helping a ton of people!
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## Tips for specific vendors
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### AliExpress
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Aliexpress is one of the highest skill ceiling stores out there - there's a ton of optimisation you can do. Here's some tips:
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- The welcome deal only works once when you make your account, so don't budget off of that - you will be hit by significantly higher prices afterwards.
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- Pay attention to the estimate shipment date. This will vary by region, but generally speaking it's actually fairly reliable
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- Also pay attention to the shipping cost! Usually items that don't have free shipping but a lower initial price actually end up being more expensive when you tally the costs
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- There's specific vendors that are useful:
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- AITXEM ROBOT: Any microcontroller you can think of
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- Trianglelab: 3D printer parts!
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## Other resources
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COMING SOON!
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<!-- ### VORON Sourcing guide
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### ANNEX ENGINEERING Sourcing guide -->
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