Integrated Router and Saw: Planning Mixed Toolpaths

Draw the operations on the panel

Start with the fabrication outline and the populated assembly at the same revision. Assign a cut identifier to every separation segment, including a straight segment that ends next to an arc. The identifier should survive export to the supplier and appear on the returned sample record. Mark each line as a saw candidate, a milling candidate or an unresolved transition. A candidate is a request to review access, not a released machine instruction.

A saw candidate needs room for the blade to enter and leave. A line may look straight in a drawing while a nearby connector, clamp or retained rail occupies the blade's swept space. Ask for that space to be drawn over the populated panel and fixture. For a milled contour, review the cutter approach, the corner geometry and the surface the fixture will support. Evaluate the endpoint shared by the two methods separately; an acceptable saw segment and an acceptable arc do not automatically make an acceptable junction.

Plan the support after every cut

Draw the panel as it looks after each operation. A rail that locates the incoming assembly can cease to locate the remaining piece after the first separation. Likewise, a tab used to hold a board during milling may be unavailable if a proposed saw path removes it first. Label the features used as datums, clamps and temporary supports, and identify the operation after which each feature disappears. This gives the fixture designer enough information to challenge the order before making a fixture.

Do not prescribe saw-first or router-first for every panel. Instead, compare the two sequences against the location and support they leave for the next cut. For a small board near a perimeter rail, check who or what retains the board as its last connection is removed and how it is collected. If the next tool has to approach a newly free edge, ask how the board is held during that approach. Keep the offcut in the drawing too: it needs a place to go without obstructing the next movement.

Check the change of tool and coordinate reference

The integrated router and saw catalog lists straight cuts for the saw and straight and shaped contours for milling. It distinguishes manual milling cutter replacement from the optional automatic arrangement. Confirm the quoted configuration before asking for a trial sequence; a replacement method does not by itself describe when the programmed process changes between the two cutting operations.

For each transition, record the last verified datum, the fixture state and the first path on the next tool. Include the location of reference marks and any features that disappear after separation. Automatic camera compensation is listed in the catalog, but the drawing review still needs to identify what the process is expected to reference at each stage. Ask the supplier to show the first cut after the transition on the same drawing revision used for the initial alignment. Keep that check separate from a tool replacement check.

Turn the drawing into a reviewable trial

Send the supplier the original panel drawing, the populated assembly views, the cut register and the proposed sequence. Ask for a marked return drawing identifying paths accepted for review, changes requested and open questions. When a route is unresolved, give the trial a defined decision: for example, whether the residual material at the junction can be removed without moving the finished edge outside its drawing tolerance. Treat the example as an acceptance question, not an assertion about a result.

Choose samples that represent the assembly features most likely to restrict access. Keep the part numbers and revisions visible on the sample record. Identify edges cut by each method and record the joint between them independently. Note which face was inspected and how the edge was measured. A photo showing a clean long straight edge does not document what happened where the blade stopped or the cutter entered.

Release a mixed recipe with revision limits

Before approval, separate dimensional acceptance, edge appearance and successful handling into distinct checks. State what happens when only one check fails: a handling problem may call for a new fixture while an edge geometry problem may call for a revised path. Do not bury those differences in a single pass box. Return the marked drawing with the sample identifiers so another engineer can reconstruct what was run and which cuts were actually inspected.

Make the released record identify the selected tools, fixture revision, panel revision and sequence. List the changes that require a new review, such as a relocated connector, altered rail or changed contour. For a purchase handoff, send the same package to the team comparing station and panel envelopes. That comparison answers whether the candidate configuration can accommodate the assembly; the cut register answers what the process must do once it is inside.

Example: a straight cut that meets a milled corner

Suppose a panel drawing has a long straight separation line that stops beside a rounded corner. Put the junction on the review drawing at a scale that makes the approach visible. If the blade needs to pass the intended endpoint to complete the straight cut, mark that region as unresolved rather than extending the nominal finished outline. Ask whether milling a short portion of the straight segment would move the transition away from the obstructed area. The supplier can then assess both alternatives using the same board and fixture constraints.

Keep each proposed change separate in the trial record. If the trial changes both the transition location and the order of operations, record both changes so the accepted recipe is reproducible. Review the application package with JELIO technical support before treating any trial suggestion as a production instruction.

Two tools, one finished edge

Saw and milling review by cut

Published specifications for the application review

JLO-CXJ3235/JLO-CXJ4550: source catalog values for this product family.

Cut register to recipe release

1. 01

   Map

   Assign each cut an identifier.

2. 02

   Check

   Draw swept space and support.

3. 03

   Trial

   Inspect identified junctions.

4. 04

   Release

   Record the recipe and revision.

Related equipment and guides

• Integrated Depaneling: Comparing Station and Panel Envelopes
• PCB Depaneling Component Clearance: Drawing Review