[sdiy] 45 vs. 90 degree pcb traces

Didrik Madheden nitro2k01 at gmail.com
Sun Feb 16 20:07:01 CET 2020


This was addressed earlier in the thread. Acid traps are a non-problem in
modern board manufacturing techniques.

/Didrik


On Sun, Feb 16, 2020, 19:16 Kylee Kennedy <kmkennedy at gmail.com> wrote:

> I know the comment about electrons not liking corners was in jest but you
> don’t want 90 degree angles on your PCB designs due to the chance they
> could become acid traps when the boards are made.
>
> https://electronics.stackexchange.com/questions/445614/what-is-an-acid-trap
>
> Now back to my TB-303,
> Kylee
>
> On Friday, February 14, 2020, Didrik Madheden <nitro2k01 at gmail.com> wrote:
>
>> Jimmy Moore <jamoore84 at gmail.com> wrote:
>> >
>> >(Notable exceptions being RF, high speed, or high voltage layouts)
>> >
>> >This and another
>> ><
>> https://electronics.stackexchange.com/questions/226582/pcb-90-degree-angles
>> >
>> >resource
>> >debunk the pcb corner myth on EMI effects.
>> >
>> >Is there any other tangible (audible) impact this decision could have for
>> >music electronics?  I think not, but I'd love to hear from other more
>> >experienced engineers on this (hopefully not tiresome) topic.
>> >
>>
>> There's a simple and tangible, although not much audible, reason to
>> prefer 45 degree angles. They can be routed more tightly on the board. Of
>> course, 90 degree angles will still be perfectly fine in every non-critical
>> situation.
>>
>> /Didrik
>>
>
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