| Electronics > Beginners |
| Why should I route traces by hand when I have my autorouter? |
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| iamericmin:
Hi everyone, I'm a teenager and as my hobby I design PCBs. I always autoroute them since I'm already so busy with learning about new chips, programming, peripherals, etc. I mean, why painstakingly hand-route when my computer can do it for me? However, as I quickly found out that many hobbyists and experts hand-route most, if not all the traces on their boards. This got me worried since I want to be an EE major in college(I'm a senior) and I still don't know how to hand-route. I also still don't get why I would route everything by hand when the autorouter does everything perfectly for me. So, why should I learn hand routing and when should I get started? How do I learn it? To me it just seems like a really hard math puzzle that I will never be able to learn. It looks scary and complicated. Thanks! |
| wraper:
Because simply trowing task on autorouter generally will result in very shitty PCB. Getting decent result out of it is not trivial. --- Quote ---does everything perfectly for me. --- End quote --- Probably you just don't realize how shitty it is. |
| iamericmin:
Hi wraper, thanks for the quick reply. Can you please explain on the "shitty" aspect? Like, how does the autorouter screw up my board? I thought this only mattered for high-signal or high-power circuits. |
| ataradov:
It also matters for analog performance. And if you look close enough, everything is analog. It also depends on complexity, If you have something like Arduino board, I bet even auto-router will not screw it up bad enough. But you still need to do placement by hand. And once you do this, routing is not all that hard. You learn by doing and also looking at other people's routing. |
| wraper:
--- Quote from: iamericmin on November 20, 2019, 12:30:36 am ---Hi wraper, thanks for the quick reply. Can you please explain on the "shitty" aspect? Like, how does the autorouter screw up my board? I thought this only mattered for high-signal or high-power circuits. --- End quote --- Post example of your board to discuss what's screwed up there. |
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