Milling Profiles with a Router and router table How to Mill Perfect Profiles

A profile can be routed quickly—and ruined just as quickly. A scorch mark on the curve, a tear in the end grain, a counter-profile that doesn’t close up when the pieces are joined. The routing itself takes minutes—but the decisions you make beforehand determine whether you’ll do it once or twice.

This article walks through the sequence of steps involved in the machining process: machine, tool, speed, direction, and feed rate. Throughout, it refers to manual feed, which is the norm in woodworking.

Profile on the edge, milled using a manual feed

Table of Contents

• Which machine are you using for profiling?
• The tool must be compatible with the machine
• Rotational Speed: It All Depends on the Diameter
• Direction: Counter-rotation is set when feeding by hand
• Service and Scheduling
• Heartwood: It's All About the Order
• Safety: First the machine, then the person
• When a Tool Should Be Taken Out of Service
• What You Can Do Now

Which machine are you using for profiling?

The table router is the machine for large profiles. The tool is mounted on the router spindle, which is wide open at the top, and the feed mechanism allows long runs to be processed smoothly. Full-size frame and window profiles are processed here.

Bench Router with Feed Mechanism – The Machine for Large Sets of Profiles

The router table —the under-table router with built-in router motors—uses shank-style tools in a collet. This limits the profile size but saves setup time: Withrouter table RUWI router table , depending on the model, three to ten cuttersrouter table clamped at once; you simply move to the appropriate motor instead of having to change tools. For chamfers, curves, panel profiles, and smaller frame profiles, this is the faster way.

RUWI router table Performance and Premiumrouter table

The handheld router is used in situations where the workpiece cannot be brought to the machine: assembled parts, large panels, construction sites.

Hand-held router for parts that are already assembled

The rules regarding direction, delivery, and tools apply to all three.

The tool must fit the machine before it fits the profile

Mounting. The large profile sets run on the router table’s spindle. The shank diameter collet in the collet : The RUWI router table a standard motor comes standard with an 8 mm collet; alternatives include 6, 6.35, and 10 mm. The Classic Performance model accommodates larger shanks with a 12 mm collets and collets 3 to 10 mm. The 6.35 mm collet is theshank it’s worth checking this before ordering tools from the Anglo-American market.

Diameter. On router table , the limit router table 40 mm in diameter; with the Performance, it’s 55 mm. This helps determine which machine is used for which job: cassette profiles and small frame profiles fall below that limit, while a full set of counter profiles for interior doors exceeds it and belongs on the router spindle.

Shaft tools in the Classic Performance series – collet 12 mm, tools up to Ø 55 mm

Marking. On bench routers, only tools approved for manual feed may be used—identified by “MAN,” “HANDVORSCHUB,” or the BG-TEST certification mark. For shank cutters used in hand-held routers, labeling is required for tools with a cutting diameter of 16 mm or greater. If a tool has no markings, check it using the test template—and take it out of service if it fails the test. The maximum speed is also marked on the tool and must not be exceeded, not even briefly.

You buy counter profiles as a set and have them resharpened as a set. If the profile and counterprofile are resharpened separately, they will no longer match properly afterward. In general, when it comes to profile cutters, resharpening reduces the diameter, and as the diameter changes, so does the contour. Where the same shape must remain reproducible for years, indexable inserts are the safer solution.

You can find the right tools under "Milling Tools." The standard profiles are also available from other manufacturers in good quality—what matters is that they fit your mount, not the logo.

Rotational Speed: It's the Diameter That Matters, Not the Hardness of the Wood

The common rule of thumb—"hard wood slowly, soft wood quickly"—is misleading. The decisive factor is the cutting speed at the circumference, and that depends on tool diameter: The larger the cutter, the lower the speed. The type of wood is only a secondary factor, because resin-rich wood tends to smear, while dense woods tend to burn.

Continuously variable speed control, 8,000–25,000 rpm

That is why stepless speed control on a machine that processes profiles of varying diameters is not a convenience, but a necessity. The RUWI covers a range of 8,000 to 25,000 rpm, while the performance version covers 3,500 to 30,000 rpm.

If the speed drops noticeably while milling, you’re removing too much material at once. The electronics keep the speed constant under load—if it drops anyway, that’s an indication of the feed rate, not the motor.

Direction: When feeding by hand, counter-rotation is not an option—it is set by default.

On a table router and router table , the workpiece router table from right to left past the stop. If the feed were synchronized with the router’s rotation, the cutting force would act in the direction of the push and pull the workpiece toward you—with manual feed, this self-feed cannot be controlled.

There are two situations where the direction of the operation can change without you noticing: machines with reversible rotation, and profiles that are wider than the tool and are created in multiple passes. Be sure to reset the stop between passes, and never place the workpiece on the other side of the milling cutter.

Both topics are covered in detail in the section on counter-rotational milling; the section on synchronous milling explains when synchronous rotation is permissible.

Service and Scheduling

Deep grooves are created in several passes. The workpiece will tell you how many: As soon as the feed force becomes so high that you can no longer guide the piece smoothly, the feed rate is too high. The final pass is the finishing cut—small chips, even feed, no stopping. Every spot where you hesitate will leave a mark on the wood.

The real danger lies in the initial positioning: The workpiece must be in contact with the stop before it touches the moving tool. Plunging freely into the tool and then trying to find the stop is a classic way to cause kickback. When performing insertion operations, kickback protection and a cross stop are essential.

Adjusting the cutter height – Fine adjustment in 0.1-mm increments

Adjust the height using a dial gauge, not by eye. Onrouter table RUWI router table , thisrouter table the fine-adjustment mechanism in 0.1-mm increments. Before doing so, perform a test cut on a scrap piece of the same wood species and thickness—not on just any board—and only with the safety guards in place.

Heartwood: It's All About the Order

The edge tears out at the fiber exit, and the tearing is most severe at the end grain. For frame parts, this is addressed by the following sequence: first profile the end-grain edges, then the long edges. The longitudinal cut removes the tear-out.

If that’s not possible, use a support block or a piece of scrap wood that runs behind the workpiece and supports the grain as it exits. A sharp tool and a steady feed will prevent more tear-outs than any trick you try afterward.

Round bar on router table

Safety: First the machine, then the person

Safety measures on the machine come first. Whatever is worn on the body is what’s left.

• Install the tool covers, pressure elements, and clamping elements, and leave them in place. Even for that quick cut.
• Short workpieces belong in a clamping tray, not between your fingers. On router table , the guide ring further router table the gap around the router bit so that small pieces don't get caught.
• Place your hands flat on the workpiece with your fingers closed, and move them forward evenly—this is the position that prevents a finger from getting caught in the gap.
• When routing curves, use only a guide ring and a curve stop. Trying to position the router freehand against the ball bearing is where things typically go wrong; on router table , the curve guide router table the guidance.
• Dust extraction is a technical safety measure, not a convenience feature. The RUWI router table dust from both above and below the table top; it has a 120-mm connection, a flow rate of approximately 170–230 m³/h at 20 m/s, and is DGUV-certified.
• Only then: ear protection, safety glasses, close-fitting clothing, no jewelry.

The German Wood and Metal Workers’ Compensation Association has compiled this information in a concise format—for machine tools in “Working with Table Routers” (Occupational Safety Compact No. 044), for cutting tools in “Routing Tools for Woodworking” (No. 092), and for hand-held tools in “Working with Hand-Held Routers” (No. 080).

When a Tool Should Be Taken Out of Service

A dull cutter gives warning signs before the workpiece is ruined: The motor audibly struggles more, burn marks appear on the edge, and the tear-out on the end grain increases. Anyone who continues to cut through three more doors will end up with scrap.

Check the cutting edge before starting production

Resin and glue residue can clog the cutting edge and create the illusion of dullness—clean the tool after each use, and it will stay sharp longer.

What You Can Do Now

Before moving on to the next profile, ask yourself three questions: Is the clamping secure? Is the diameter within the machine’s capacity? And is the tool marked for manual feed? Then cut a test piece from the same type of wood, feeding in stages, starting with the end grain.

If you're stuck at a certain point or want to know which profiles should router table to the router table and which should stay on the table router: Give us a call or schedule a workshop consultation.