Checking for Trace Crossings and Adding Jumpers

Checking for trace crossings (Auto-Check Wires)

This is not the same as Auto Wire, which creates new connections in the Diagram tab — this is a separate tool that checks whether 2 copper traces geometrically intersect on the same layer. The tool only reports and highlights — it does not automatically add a jumper.

1. Click Auto-Check Wires.
2. The panel shows a count, e.g. "2 trace crossings" (or "No trace crossings" if clean).
3. When the panel opens, all traces involved in any crossing are highlighted in dashed red.
4. Click 1 result in the list to highlight only the specific pair of wires for that result. Click the same result again to return to highlighting all of them.
5. Handling: select 1 of the 2 crossing wires, click Add Jumper (mid-trace) — or manually drag a waypoint to separate the two wires.

Result: you know exactly which pair of wires crosses and where, with 2 ways to fix it: add a jumper or manually reshape the wire.

Jumper — a bridge for crossing wires

A jumper is a hand-soldered bridge (2 pins) that lets one trace "jump over" another trace on the same copper layer. This is different from the Jumper component (a mode-select header) in the catalog.

How to add one: select a wire → click Add Jumper (mid-trace) in the wire panel, or right-click the wire → Add Jumper.

Result: the original wire splits into 2 segments through a new jumper node, synced across both the PCB and the Diagram (a new Jumper node appears in the Diagram). On the board, the jumper appears as a bridging arc.

Customizing a jumper (select the jumper module, and the "Module Properties" panel shows a "Jumper — bridge for crossing wires" block):

• Pin spacing (mm): default 5×3mm — changing this value actually moves the pads, with a minimum of 5mm.
• Height (mm): similar, with its own minimum.
• Jumper wire soldered (checkbox): a note that a real wire has been/will be soldered.
• Drag to move: drag it like a normal module — the bridging arc redraws itself according to the new pad positions.

Saving the PCB layout and reloading the page still keeps any jumper changes.

To remove all jumpers and route from scratch, use Reset PCB (see the article "Resetting Wires / Resetting the Whole PCB") — this removes every jumper and restores the original wires in the Diagram.

Example

After Autoroute on a 4-module board, the panel reports "Routed 8/8 nets — 1 crossing." Click "Auto-Check Wires", click the single result in the list to highlight just the 2 wires involved, select 1 wire, then click "Add Jumper (mid-trace)" — the wire splits into 2 segments jumping over the other wire via a bridge, and the crossing warning disappears immediately.