# ! Rushabh | Linux Shill - Why does this board r...

Channel: #contributor
Source: https://discord.com/channels/1233487248129921135/1542425164355215420
Started: 2026-08-27T06:46:56.689000+00:00
Last activity: 2026-08-27T08:37:34.524000+00:00

## ! Rushabh | Linux Shill — 2026-08-27T06:46:56.056000+00:00

Why does this board require maxDecouplingTraceLength="6mm" instead of the default 1 mm? Is there a way to fix the routing by repositioning the components, or is 6 mm the safest solution without
  significantly changing the physical layout?
Attachment: image.png — https://community.tscircuit.com/media/1542425163360903168
Attachment: image.png — https://community.tscircuit.com/media/1542425163742580766

## ! Rushabh | Linux Shill — 2026-08-27T06:47:28.926000+00:00

Removing pcbX/pcbY enables automatic placement, but the solver placed C1 near the board edge and farther from U1, so it made the situation worse.

## ! Rushabh | Linux Shill — 2026-08-27T06:47:40.493000+00:00

<@&1420812538421051555>

## ! Rushabh | Linux Shill — 2026-08-27T06:50:49.484000+00:00

is this a bug, our automatic placement should respect maxDecouplingTraceLength, right ?

## 0hmx — 2026-08-27T08:05:24.052000+00:00

dose the auto router fail with 1mm ??

## ! Rushabh | Linux Shill — 2026-08-27T08:19:13.916000+00:00

1  mm is the default and yes it fails

## ! Rushabh | Linux Shill — 2026-08-27T08:19:47.007000+00:00

i had to explicitly add maxDecouplingTraceLength="6mm" for it to route

## 0hmx — 2026-08-27T08:37:34.524000+00:00

any bug report will be good  do you have the tsx code