# First PCB Critique

**URL:** <https://forum.arduino.cc/t/first-pcb-critique/949491>\
**Category:** General Guidance\
**Created:** [January 21, 2022, 4:23am UTC](https://forum.arduino.cc/t/first-pcb-critique/949491 "2022-01-21T04:23:30Z")\
**Posts on this page:** 1\
**Showing post:** 90

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**Author:** ![LarryD](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/larryd/32/215550_2.png) [@LarryD](https://forum.arduino.cc/u/LarryD)\
**Post date:** [February 20, 2022, 6:34pm UTC](https://forum.arduino.cc/t/first-pcb-critique/949491/90 "2022-02-20T18:34:16Z")

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FYI  
Paracord.

> **[0ab8d824fcc2444afea97557a115b5cc3ed81ed7.pdf](https://europe1.discourse-cdn.com/arduino/original/3X/0/a/0ab8d824fcc2444afea97557a115b5cc3ed81ed7.pdf)**
>
> 602.37 KB

**Is the casing nylon ?**

**Do you have a web link to the casing ?**

- Twisting the signal wires will probably not be of much benefit however plastic insulated wires can be handled as here:

> [@Share tips you have come across](https://forum.arduino.cc/t/share-tips-you-have-come-across/428745/116):
>
> Twisting wires can help keep your projects more organized and manageable. Twisting can cause some signal cross talk between wires, however, for short distances and the frequencies seen in Arduino projects this is usually negligible. The images below present some ideas you might want to use in your next project. .

- Also heating the wire twist helps keep its memory.

* * *

If you have access to silicone insulated wires, the cable remains very flexible and can withstand extremes in temperatures.

18AWG wire has 150 strands.  
 ![s-l400](https://europe1.discourse-cdn.com/arduino/original/4X/7/f/6/7f611e1a7549106b0c5b54bb44d12aaef7c354ef.jpeg)

**Why 18AWG ?**

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