Stick Welding Patterns: The Complete Guide to Stringer, Weave & Whip Techniques

What Stick Welding Patterns Are and Why They Matter

You strike the arc, the rod starts to run, and you freeze: do you drag it straight, or start swinging it side to side? Every welder hits that moment, and the answer comes down to one word — pattern. The pattern you choose decides whether the bead fuses cleanly or fails inspection.

In shielded metal arc welding (SMAW), a stick welding pattern — also called electrode manipulation or a weave pattern — describes how you move the electrode along the joint. It matters because stick is still the dominant arc process in the US, accounting for roughly 45% of materials usage, ahead of GMAW (~34%) and FCAW (~17%), according to an EPA-referenced analysis in a peer-reviewed study.

Every pattern traces back to two fundamental families. Stringer beads use minimal side-to-side motion, dragging with modest oscillation at most, and typically finish about 1.5 to 2 times the electrode diameter wide. Weave beads use deliberate oscillation — steady side-to-side swings — and commonly run 2 to 4 times the electrode diameter wide. Neither is automatically better; the joint decides.

Pattern choice isn’t cosmetic. It governs penetration, bead width, heat input, fusion between passes, slag behavior, and final appearance. A tight stringer concentrates heat and digs in; a wide weave spreads heat and flattens the profile. Choose wrong and you invite lack of fusion, slag entrapment, or undercut and overlap defects that surface fast under inspection. Picture a 3/8-inch V-groove on a bridge bracket: a too-narrow stringer can leave cold lap at the sidewalls, while a too-wide weave overheats the base metal and slags up the toes. Both are pattern mistakes, not sloppy work.

Mechanically, the pattern you run shapes five things at once:

• Penetration depth and sidewall fusion

• Bead width and crown height

• Heat input, which affects cooling rate and hardness

• Slag control and where it releases

• Appearance and inspection results

Pattern vs. Parameters: The CLAMS Framework

Pattern is the shape you trace; parameters are the settings and angles that make it work. Arc length, travel angle, work angle, amperage, and travel speed all interact with the path you draw. Amperage sets how fluid the puddle is; arc length controls voltage and wetting; angles steer the arc; travel speed sets deposit per inch. Miller’s “Five Steps” framework condenses stick technique into five variables: current setting, length of arc, angle of electrode, manipulation of electrode, and speed of travel — remembered as CLAMS. Manipulation is your pattern; the other four must support it. Change one and the pattern behaves differently.

Note: Pattern is not the same as process choice. Running a weave does not make it a different welding process; it’s a technique inside SMAW. Confusing the two leads to mismatched settings and poor fusion.

Across this guide we cover the full pattern catalog, position-by-position recommendations, electrode-driven choices, code limits, common mistakes, and practice drills. Patterns apply in every position — flat, horizontal, vertical, and overhead — and no single pattern is best for everything. The right one depends on your joint, position, electrode, and the code you’re welding to. We’ll also show when a pattern that looks perfect on a flat plate becomes a defect once gravity joins the conversation.

That’s why pattern work belongs in deliberate welding practice, not just on the job. Build the motion until it’s automatic, and the freeze at the start of the arc disappears.

Stringer Beads vs. Weave Beads: The Foundation of Every Pattern

Every stick welding pattern you’ll ever run is a variation on two fundamental motions. A stringer travels in a straight line. A weave oscillates side to side. Once you understand what each motion does to heat, penetration, and the weld puddle, the rest of the catalog — whip, J-weave, figure-eight — starts to make sense.

What Is a Stringer Bead?

A stringer bead is straight-line travel with only incidental lateral motion, producing a narrow bead about 1.5–2x the electrode diameter. Because the arc stays in one tight spot, heat concentrates: you get deeper relative penetration, a narrower heat-affected zone (HAZ), and lower dilution from the base metal. That concentration is exactly why stringers are the default for heat-sensitive materials like stainless steel and for thin sections where a wide, hot puddle would blow through.

The trade-off is coverage. A stringer fills slowly and demands good travel-speed control — let it dive and you groove the plate; let it race and you leave a rope of cold metal sitting on top. This is the motion to drill first, which is why any serious look at welding practice starts with straight beads on scrap plate.

What Is a Weave Bead?

A weave bead adds deliberate side-to-side oscillation, spreading the arc across a wider area. Amplitude typically runs 2–4x the electrode diameter — sometimes more in the flat position — which distributes heat, flattens the bead profile, and raises dilution. You cover more joint per pass, and a single weave can bridge gaps a stringer never could. The cost is heat spread over a wider HAZ and more stirring of base metal into the puddle. Think of it as painting with a brush instead of a pen.

The Universal Rule of Weaving

Here’s the rule that separates a good weave from a ruined one: move quickly across the center and pause briefly at each toe. The fast center keeps the puddle from piling up and overheating; the toe pause lets molten metal wet and fuse into both sidewalls. Skip the pause and you get cold lap, undercut at the toes, and a humped center that looks fine and fails inspection. Weave width is commonly limited to about 2.5x the electrode diameter as a rule of thumb, with other industry sources allowing up to 3x before heat input and cracking risk climb.

The Real Trade-Offs

The two motions pull in opposite directions, and every pattern choice is really a decision about which trade-off you can live with.

• Speed vs. control: Weaves throw more metal per pass; stringers give tighter, more predictable fusion.
• Heat input vs. penetration: Weaving spreads heat for a flatter bead; stringing concentrates it for deeper relative penetration.
• Code preference: Many procedures restrict weave width and favor stringers on critical or heat-sensitive joints — limits that trace back to standards like AWS D1.1.

In practice, a pipeline root pass leans on a stringer while a flat fill pass on thick plate often leans on a weave.

Parallel Stringer Stacking

When a joint is too wide for one bead but you still want stringer control, stack parallel stringers. Run the first bead, then overlap each subsequent bead by roughly 30–50% of the previous bead’s width. That overlap guarantees inter-pass fusion and lets you fill big joints without the heat spread of a giant weave. Done well, the stack becomes one solid mass. It’s slower, but it’s a favorite for repair and code work.

The Rule of Thumb

Reach for stringers when the material is thin, the position is out-of-position, or the alloy is heat-sensitive. Reach for weaves on wide, flat joints and when surfacing or hardfacing, where broad coverage matters more than a tight HAZ. Neither motion is “better” — context decides every time. Master both, and every pattern in this guide becomes a tool you choose, not a guess.

The Complete Catalog of Stick Weave Patterns

Once you understand stringers and weave beads, the real toolbox opens up. Every SMAW weave is really just a controlled side-to-side motion with a specific personality — some lay metal fast and flat, others build shelves to fight gravity, and a few exist purely to widen coverage. Documented weave motions include zigzag, crescent, figure-8, V, square/box, J, T, and circular patterns. Here’s how each one behaves.

Zigzag (sharp Z). Move the electrode in tight, angular Z-strokes from toe to toe. It suits flat and horizontal positions, ties in well at both edges, and lays general fill quickly in a straight line. The trade-off: it’s comparatively slow and generates higher heat input, so thin material can suffer.

Crescent / C-weave. Sweep the rod in smooth half-round arcs, dipping at each toe. That rounded path gives a smooth, flatter cap profile and works in all positions — flat, horizontal, vertical, and overhead — which is why it’s a favorite for cover passes. It’s forgiving but demands steady rhythm.

Triangle / pyramid weave. Trace a triangle, moving up one side, across the top, and back down, pausing at the toes. This is the vertical-up workhorse because the triangle builds a shelf behind the puddle that stops slag from running ahead of it. No triangle, no shelf, and gravity wins.

Figure-8. Overlap continuous loops in a figure-eight rhythm. It covers extra-wide grooves and build-up in flat and horizontal positions, tying both toes with less cold-lap risk than a pure zigzag. It eats travel speed, though.

Circular / cursive-e. Roll small circles, or “e’s,” as you advance. Ideal for flat build-up and surfacing where you want smooth, wide coverage without sharp edges. It’s slow and heat-heavy.

V-pattern. Tracing a V lets you pause at the toes and cross the center quickly. That makes it a solid choice for hot passes and cap passes, spreading heat to the edges where fusion matters while keeping the middle from bulging.

Square / box. Move in straight lines with sharp corners, pausing briefly at each corner. The flat top and even edges suit flat joints, large gaps, corner joints, and T-joints where you need consistent fill without weaving thin.

J-pattern. A J-shaped stroke — straight up one side, curved across the top, then back down — stacks neat, controlled beads for flat and horizontal hot passes.

T-pattern. The T combines a weave with a straight drag, making it useful for fillet welds in vertical and overhead positions, where you need width without overheating the toes.

Shared Timing Rules

Regardless of which shape you trace, four timing rules hold every pattern together: keep a consistent rhythm, maintain a consistent arc length, pause at the toes, and don’t linger in the center. Lingering mid-bead piles up metal and traps slag; freezing at the edges gives the walls time to fuse. An irregular motion produces an irregular weld — that’s the whole game.

Amplitude and Weave Width Limits

Amplitude matters as much as motion. How wide you can weave is limited by electrode diameter and material thickness; push too far and the arc loses the puddle, slag rolls in ahead of you, and penetration dives at the toes. Some sources put a typical maximum weave width around 3x the electrode diameter, while the 2.5x rule of thumb — echoed in Miller’s own technique guidance — stays safer for many jobs. Wider coverage is usually better handled with multi-pass stringers than one enormous weave.

These motions share one discipline: every shape is a rhythm you can repeat. Students often drill one pattern per session in the flat position before chasing a vertical triangle, and that repetition is where control actually comes from — a point we dig into in our guide to welding practice. If a bead ends up cold at the edges or puddled in the middle, the timing is almost always the problem, not the pattern. For a wider comparison of bead appearance across processes, our good and bad MIG welds breakdown is worth a read, and if you’re switching to wire later, gasless MIG welding covers the flux-core equivalent.

Whip, Pause, and the J-Weave: Patterns for Roots and Hot Passes

Not every stick pattern is a side-to-side weave. Some of the most valuable motions welders learn are forward-and-back techniques that live or die by timing—the tools you reach for when a root pass has to be sound on the first try.

The Whip-and-Pause Cycle

Whip motion is used almost exclusively in SMAW root passes and is most commonly paired with fast-freeze cellulosic electrodes such as E6010 and E6011. Their thin, fast-solidifying slag and forceful digging arc are exactly what an open-groove root demands. Rather than dragging a continuous bead, you cycle the electrode through a repeating rhythm:

1. Establish the keyhole. Strike the arc and let it burn through to open a small hole at the joint’s leading edge.
2. Pause and deposit. Hold briefly at the leading edge so the arc fills the gap with a drop of molten metal.
3. Whip forward and slightly up. Snap the rod ahead of the pool, lifting roughly an electrode-diameter, to let the trailing edge of the puddle freeze.
4. Return to the leading edge. Come straight back to the front of the solidifying bead and deposit the next drop, keeping the keyhole open.

The keyhole is your real-time heat gauge. Maintain it at roughly 1.5–2x the electrode diameter—about 3/16 inch for a 1/8-inch rod. If the keyhole opens wider than that, the molten root bridge can collapse and you’ll leave a hole or burn-through. If it closes up, you’re running too cold and won’t achieve full penetration.

As the joint heats up, you must increase your whip frequency and shorten the pause. Early passes on cold plate tolerate a slower rhythm; by the third or fourth inch, the metal stays hotter longer, so faster whipping keeps the pool from running away. Learning to read that shift is a core skill—one worth drilling deliberately, as we cover in our guide to welding practice.

The J-Weave for Hot Passes and Fills

The J-weave is a hybrid of crescent and whip. Instead of staying on a straight line, you sweep toe-to-toe across the joint like a crescent, but add a forward whip on one side to shed heat and control the crown. It’s used primarily for hot passes and fill passes on V-groove and pipe joints, where you need both coverage and heat management.

Think of the shape: the arc traces a “J,” pushing forward and up on the side where the pool runs hottest, then returning to lay metal evenly across the face. That forward move on one side buys a fraction of a second of freeze time, flattening the crown and keeping the puddle from sagging into an overlap defect.

In both techniques, keep a short arc—cellulosic rods need it to maintain digging force. Aim for an arc length close to the core diameter: long enough to avoid sticking, short enough to preserve penetration. For travel angle, the usual SMAW guidance is a 5–15 degree drag (backhand) for flat, horizontal, and overhead work; vertical-up flips to a 0–15 degree push (forehand) so the arc drives slag uphill and out of the way. Miller’s guidance on improving stick technique stresses consistent angles over raw speed.

That steady stop-and-go rhythm is exactly why a whip root reads as a uniform, evenly rippled bead rather than the flatter profile of a stringer root. Each pause deposits a controlled drop, and each whip lets it freeze, so the root stays consistent corner to corner. A stringer root runs hotter and faster—fine in skilled hands, but with far less freeze time across a gapped open root.

Codes care about root quality for a reason. AWS D1.1 sets the workmanship and inspection criteria a whipped root is designed to meet—full fusion, controlled reinforcement, no burn-through. Nail the rhythm and your bead will pass visual inspection without a grinder.

Matching Patterns to Welding Position: Flat, Horizontal, Vertical, Overhead

Gravity is the referee in every stick weld. Flat, it quietly helps you build a puddle. Tilt the work toward vertical or overhead and it turns into an opponent that drags molten metal where you don’t want it. That is why out-of-position welding clusters almost every defect around two skills: heat control and puddle management. The pattern is simply the tool you use to win that fight.

Flat (1G/1F): Your Pattern Laboratory

Flat welding is the most forgiving position, and gravity works with you by holding the molten puddle in place on the joint. That freedom means the widest range of patterns is allowed here: straight stringers, wide side-to-side weaves, figure-8 motions, and crescent or C-weaves you’d barely dare run overhead. Stay inside your procedure’s weave width limit, but treat flat work as your pattern laboratory. It’s the best place to learn any new motion, because mistakes show up as cosmetic flaws rather than fusion defects. In 1G groove welds the same logic applies—you can run a stringer root and then a wide weave cap without fighting gravity at all.

Horizontal (2F/2G): Control Over Coverage

On horizontal fillets, gravity pulls the puddle down toward the lower plate, so a straight stringer usually gives better control than a weave. If you must weave, keep it tight. Set a 45-degree work angle split between the two members and a 5–15 degree drag travel angle—this is the classic adjustment that reduces undercut on the vertical leg. On the bottom leg, the risk flips to overlap, where molten metal piles up without fusing. The overlap welding defect behaves exactly that way in horizontal work. A 2F fillet rewards a steady, slightly tilted drag that keeps the arc on the joint rather than the puddle.

Vertical-Up (3G/3F): Fighting Sag With a Triangle Weave

Vertical-up is the slowest, hottest position because you’re pushing the puddle uphill against gravity, and the molten shelf wants to fall back into your arc. Stringers are strongly preferred for clean fusion; when you need width, a triangle weave—zigzagging up and pausing briefly at each toe—builds a shelf that holds the next layer. Keep the weave narrow, watch the toes for wash-out, and use a slight upward (push) angle so the arc force supports the puddle rather than letting it sag. For 3F vertical fillets, stack stringers rather than weaving wide, and pause at the top toe to prevent undercut.

Overhead (4G/4F): Small Puddle, Big Consequences

Overhead is where welds go to fail. 4G overhead joints fail inspection more often than any other position, and almost every droop, slag trap, or incomplete fusion traces back to heat control and puddle management against gravity. Many shops require straight stringers here for that reason; wide weaves invite slag inclusion and drips that harden before you can fill them. If the joint demands more coverage, use a tight parabola-type motion only as needed and keep the puddle as small as you can. Novices often set flat amperage, then wonder why the puddle drips through the arc—fix the settings before you fix the motion.

To buy that margin, overhead work commonly runs 10–15% lower amperage than flat settings—the same dial-it-back logic behind our 3/16 E7018 amperage guide. The Miller welding resource makes the same point: turn the heat down, shorten the arc, and keep the bead small.

Electrode Angles, Drag, and Travel Speed by Position

Two angles govern consistency. Hold a 90-degree work angle to the joint, then tilt slightly along the travel direction: drag for flat, horizontal, and overhead so the arc pushes slag and metal forward, and push for vertical-up so the arc force holds the puddle up. Travel speed shifts too. General SMAW guides put 1/8 in electrodes around 5–10 inches per minute, with overhead work at the faster end to limit heat build-up. Standardize these numbers in your welding practice, then adjust as conditions demand.

Because position changes heat input so dramatically, codes like AWS D1.1 treat position-specific qualification as mandatory—a welder certified flat is not automatically cleared to run the same joint vertically. In other words, let the position pick the pattern, not the other way around.

Choosing a Pattern by Electrode: E6010, E6011, E7018, E7024

The electrode in your stinger is not just filler metal — it is a chemistry set that decides how the puddle freezes, how much slag you fight, and therefore which pattern actually works. Pick a weave that fights the flux, and you get slag entrapment, porosity, or a bead that fails inspection. Match the pattern to the flux class and the weld practically runs itself.

Fast-Freeze Cellulosic: E6010 and E6011

Cellulosic electrodes burn a cellulose coating that produces a forceful, digging arc and a thin, fast-freezing slag. That fast freeze is the whole point: the puddle sets quickly enough to hold onto a vertical or overhead joint without sagging. These rods are the classic root-pass choice, and they pair naturally with the whip-and-pause technique — you push forward, let the puddle cool, and step back to deposit more metal. The digging arc also cuts through mill scale, rust, and poor fit-up.

For amperage, expect roughly 40–70 amps on 3/32 in E6010 and about 75–125 amps on 1/8 in. Thin rods need tight motion; as the electrode diameter shrinks, your whip amplitude should shrink with it, or you’ll outrun the puddle. E6011 is the AC-friendly cousin: it runs on alternating current as well as DC, which makes it handy on older transformer machines. Note that AC’s constant reversal softens arc force slightly, so you may need a touch more amperage to keep the same bite.

Fill-Freeze Low-Hydrogen: E7018

E7018 is a low-hydrogen, iron-powder electrode with a smoother, more fluid puddle and a heavier slag that tends to “freeze” as it fills. That fluidity is a strength flat but a liability out of position. Run E7018 as stringers or tightly controlled weaves — a slight side-to-side step, never a wide, lazy swing. Excessive weaving with low-hydrogen rods risks slag entrapment between passes and can hurt ductility in the heat-affected zone.

Typical settings: 1/8 in E7018 runs about 90–150 amps flat, often narrowed to roughly 90–120 amps overhead. Step up to 3/16 in and you’re in the neighborhood of 180–260 amps. If you want the settings deep dive, see our guide to 3/16 E7018 amperage.

Keep that weave within about two to three times the electrode diameter, and shrink the amplitude as the rod gets thinner. A 3/32 in E7018 wants a narrow, almost stringer-like step; a 3/16 in rod can tolerate a slightly wider motion but still nothing dramatic.

Fast-Fill: E7024 and Iron-Powder Rods

Fast-fill electrodes carry a thick iron-powder coating that melts into the puddle and deposits heavy metal fast. They love flat and horizontal work, high travel angles, and long stringers where deposition rate matters more than position flexibility. Drag them, keep the weave minimal, and don’t expect them to behave out of position — the puddle is simply too fluid to freeze overhead without running.

Polarity Changes the Whole Equation

E6010 and E7018 run on direct current electrode positive (DCEP) for overhead work, because DCEP concentrates heat at the electrode tip and drives a focused arc force into the joint. Reverse to DCEN vs DCEP and you trade penetration for deposition — more metal, less bite. On thin sheet, some welders switch E6010 to DCEN to reduce burn-through, accepting a shallower root in exchange; for heavy plate and open roots, DCEP remains the standard. Polarity interacts with technique directly, so verify it before you blame your hands. Our TIG polarity guide explains how current direction reshapes the arc across processes.

Read the flux, choose the motion, and check polarity — then the pattern becomes a decision instead of a guess. For a broader skills foundation, our welding practice guide covers the drills that make these choices automatic. Miller’s five steps to better stick technique reinforces the same idea: control the puddle first, patterns second.

Heat Input, Weave Width Limits, and Welding Code Requirements

Here’s the uncomfortable truth: a wide, beautiful weave can be a metallurgical liability. When you swing the rod side to side, your travel speed drops. Slower travel means the arc lingers, dumping more heat into the joint. That’s heat input, and it changes the metal itself—not just how the bead looks.

Heat input is roughly voltage × amperage ÷ travel speed. Widening a weave without speeding up travel is mathematically the same as pouring more heat into the plate. On carbon steels, excessive heat input can coarsen the heat-affected zone grain structure and lower impact toughness. On stainless, sustained heat raises the risk of sensitization—chromium carbide precipitation that leaves the steel vulnerable to intergranular corrosion. On quenched-and-tempered alloys, wide, slow weaves can over-temper the base metal, softening the properties the part was purchased for—a problem welders meet constantly when they weld hardened steel.

Then there’s residual stress and distortion. Wide weaves spread heat over a broader footprint, raising residual stress as the plate cools and contracts. But stringers aren’t automatically innocent: stacking many narrow passes creates sequential heating cycles that often produce more angular distortion than a single controlled weave. The lesson isn’t “weave bad, stringer good.” It’s controlling heat, sequence, and restraint.

What the Codes Actually Say

Shop folklore loves tidy rules like “never weave wider than three electrode diameters.” Reality is more nuanced. AWS D1.1 doesn’t flatly prescribe a weave-width-to-electrode-diameter ratio for SMAW. What it controls is layer thickness: a single SMAW pass is typically limited to about 1/4 in (6 mm). That single number quietly governs weave width—wide, slow weaves deposit thick layers that can violate the limit.

Other processes carry explicit numbers. For FCAW and GMAW, D1.1 limits layer width through a split-layer requirement and offers a suggestion on the ratio of width to depth in groove welds. ASME permits a single-pass submerged-arc layer up to 1/2 in thick, and allows a 0.035 in GMAW wire to deposit a 1/4 in weld in one pass—figures that surprise anyone who assumes narrow is always mandated. High-deposition processes like robotic submerged arc lean on those allowances deliberately. What’s legal for SAW isn’t the target for SMAW.

Where does the familiar 2.5–3x electrode-diameter rule come from? It’s a field heuristic, not a code clause. It works because it keeps heat input and bead profile in a range that consistently passes visual and bend tests. Treat it as guidance, not gospel.

The real enforcement happens through workmanship acceptance criteria. Undercut, convexity, overlap, and incomplete fusion are rejectable regardless of how pretty the bead is. Excessive convexity under AWS D1.1 Clause 8.7.1.3 is limited to roughly 1/8 in plus 0.07 times the weld face width. A weave that rolls over the toe creates overlap—a defect no code accepts, and one that quietly caps how wide your technique can legally go.

Here’s where the code is surprisingly forgiving: AWS D1.1:2025 Table 6.6 doesn’t list electrode work angle or travel angle as essential variables. So changing your angle or pattern doesn’t force PQR requalification. But that freedom is a trap—the resulting defects still get rejected at inspection. In practice, you can change your weave on the floor without a paperwork headache, but the weld still has to meet the same acceptance criteria. Your practice matters more than the paperwork.

Your WPS ties it together. It defines heat input ranges, layer limits, and technique. Where low-hydrogen deposits, notch toughness, or pressure service are specified, that paperwork pushes hard toward stringers and tight weaves—less heat, finer structure, dependable properties. Low-hydrogen fillers like E7018 are moisture-sensitive, and trapped hydrogen under restraint is a direct route to cracking—one reason tight, stringer-style technique pairs so naturally with disciplined electrode handling.

Common Pattern Mistakes and How to Troubleshoot Them

Every defect tied to pattern work traces back to a handful of root causes: the arc is too long, the weave too wide, the toe pause too short, or the travel speed fighting the puddle. The good news is that each mistake leaves a signature in the bead. Learn to read the profile, the toes, and the slag line, and you’ll fix most problems with technique alone — long before you ever touch the dials.

Undercut: The Wide Weave Trap

Undercut is a groove melted into the base metal along the toe of the weld that the filler never fills back in. It’s the most common complaint in overhead work, and it comes from excessive amperage, fast travel, a long arc, a wide weave, or a bad electrode angle. Left unfixed, it thins the joint exactly where stress concentrates. Narrow the weave, shorten the arc, and pause briefly at each toe so the metal wets in before you move on — the fixes used in Miller’s stick technique guidance.

Slag Inclusions

Overhead welding is where gravity makes the molten pool want to drop out of the joint before it wets into the base metal, and that drives most defects. A runny puddle lets slag creep ahead of the arc; a tight arc and proper drag angle push it back. Weaving over a runny puddle, dragging slag forward, and skipping inter-pass cleaning all invite inclusions. Skipping inter-pass slag removal is the fastest way to fail a bend test in destructive weld testing, so chip and brush every pass as AWS D1.1 requires before the next bead.

Cold Lap and Overlap

Cold lap happens when you spend too little time at the toes, or when your travel angle rolls molten metal over the edge instead of fusing it. The result is a bead that looks bonded but is only sitting on top. It passes a quick glance and fails under load — a dangerous combination. Run a finger along the toes: a cold lap feels like a sharp ledge, while a sound weld blends smoothly. For the full breakdown of causes, detection, and repair, see our overlap welding defect guide, and compare finished beads against our good and bad weld examples to train your eye.

Lack of Fusion

Low amperage, too-fast travel, or a long arc leaves the sidewalls unwelded, producing a bead that looks fine on the surface but lacks penetration where it matters. Wash into the sidewalls with a deliberate hold before you crank the amps — fixing fusion with heat alone can create undercut in its place. Watch the puddle wet out at the edges; if it sits up and refuses to bite, you need more time, not just more heat. Confirm your settings against references like our 3/16 E7018 amperage guide.

Burn-Through, Humped Caps, and Erratic Ripple

On thin material, weaves dump heat too fast, so switch to stringers or a smaller electrode. Humped, convex caps come from dwelling in the center of a weave; move quickly across the middle and pause at the sides. An erratic ripple points to an unsteady rhythm, a wandering arc length, or inconsistent travel speed. Consistency is a trained skill, which is why structured welding practice pays off.

The Quick Diagnostic Sequence

When a bead goes wrong, resist the urge to turn knobs. Work through this order before changing anything else:

1. Verify electrodes are dry — moisture causes spatter, porosity, and an unstable arc.
2. Clean the metal — remove rust, mill scale, oil, and paint at the joint.
3. Shorten the arc — long arcs are the hidden cause of much of the above.
4. Correct the angle — set a consistent drag or work angle for the position.
5. Narrow the weave — a tighter pattern keeps heat and slag under control.
6. Adjust amps and speed last — fine-tune only once the mechanics are right.

Fix technique first, then heat. Most pattern defects disappear before you ever move the dial.

Practice Drills, Setup, and Safety for Pattern Work

Pattern control isn’t talent; it’s muscle memory built one bead at a time. Treat every bead as a rep, not a race. Run these drills in order on scrap plate before you trust a pattern on real work.

Drill 1: The Full-Electrode Stringer

Lay straight stringer beads across flat plate and burn one complete electrode without stopping. Keep a short arc and a steady travel speed. You’re training two things at once—consistent arc length and consistent forward motion. When the arc shortens and the puddle tightens, your hand is learning. Rest your forearm on the plate and glide rather than stab. For a deeper look at building these basics, see our welding practice guide.

Drill 2: Pad Beads

Run stringers side by side to build a pad, overlapping each pass by about half. The goal is uniform width, uniform height, and ripple spacing that repeats like clockwork. Practice until you can close the pad with no valley or high crown. If your third bead wanders, your travel angle drifted—correct it before moving on. Slow down on the first pass and ignore speed; accuracy comes before pace.

Drill 3: Weaves Flat, Then Every Position

Introduce each weave pattern on flat plate first: zigzag, C, crescent, figure-eight, then whip and J. Lock the motion in flat, then run the same pattern horizontal, vertical, and overhead. Vertical-up weaves often need a slight pause at the toes; overhead demands the tightest arc and smallest weave. Overhead, brace your body and keep leads clear of the arc. Miller’s five steps to better stick technique echo this build-up approach.

Read the Arc and Puddle

A correct short arc makes a crisp, crackling, bacon-frying sound. A hiss or pop means the arc is too long; dead silence with sticking means too short or too cold. Watch the puddle: uniform ripple spacing means consistent travel speed, while a pinched or irregular edge tells you to adjust. Keep a steady rhythm in your head so travel speed stays even, and listen as much as you look.

Setup That Sets You Up to Succeed

• Clean metal: grind to bare, shiny steel—rust, mill scale, paint, and oil cause porosity and arc wander.
• Amperage: set per the electrode manufacturer’s chart, then fine-tune in small increments. Start with our 3/16 E7018 amperage guide.
• Electrode storage: low-hydrogen rods like E7018 absorb moisture, so keep them in a heated holding oven; damp rods invite porosity and hydrogen cracking.
• Ground: clamp it close to the arc, on clean metal, to avoid a wandering arc and erratic current.
• Machine: a stable constant-current (CC) power source holds your chosen amperage as arc length changes—exactly what weave work demands.

Safety: Fume, Slag, and Skin

Stick welding generates heavy fume and molten slag, so protect your lungs, eyes, and skin. OSHA’s welding fume fact sheet lists chromium, manganese, nickel, and gases, and notes prolonged exposure may cause lung damage and cancers. Keep your head out of the plume and stay upwind. Run local exhaust ventilation with capture velocities around 100–200 fpm at the arc, plus general ventilation; when that can’t hold exposure below limits, wear respiratory protection. NIOSH considers welding fume carcinogenic and recommends keeping exposure at the lowest feasible level. Fit-test your respirator and store it clean. Never weld galvanized or painted steel without stripping and ventilating, and wear a jacket, gauntlets, and face shield when chipping slag.

For PPE, match lens shade to amperage with our protective eyewear for welding guide, and pair it with a well-planned shop using our welding facilities setup resource. Consistency beats raw speed every time. Build the reps, respect the fume, and patterns stop being guesswork.

Conclusion: Putting Patterns Together Into a Repeatable Technique

Every pattern in this guide answers the same question: how do I move the rod so the puddle goes where I need it, at the heat I need, without losing fusion? Strip away the shapes and you are left with a decision tree you can run in seconds before every arc strike.

Identify the position first, because gravity decides more than preference ever will. Then weigh material thickness, electrode type, joint geometry, and any code or WPS requirement that governs the job. With those inputs in hand, the defaults fall into place:

• Stringers are the default for most stick work—excellent control and consistent results across positions and materials.
• Controlled weaves suit wide groove welds (over about 3/4 in) in flat position, cap passes for appearance, and hard-surface buildup. Keep width to roughly 2.5–3× the electrode diameter.
• Whip and pause handle cellulosic roots; the J-weave cleans up hot passes.

Never push a pattern past the limits that raise heat input or invite defects. The AWS D1.1 structural welding code exists precisely because weave width and heat input affect the finished weld’s soundness, not just its looks.

It Was Always About Puddle Control

Here is the insight that ties the whole catalog together: consistent travel speed, travel angle, and arc length are prerequisites for a uniform bead no matter which pattern you trace. Mastery is really puddle control—reading the molten pool, keeping a steady rhythm, and adjusting before the bead goes wrong. The shape follows. As Miller notes in its guidance on improving stick technique, the fundamentals of arc length, angle, and speed carry every pattern.

Think of the pattern as a delivery system, not the product. A stringer dragged dead straight teaches you heat control just as well as an elaborate weave, and it is far easier to repeat at 6G. When the joint demands more metal in one pass, the weave is simply the tool that spreads the puddle—your speed, angle, and arc length still do the real work.

Controlling heat input is the common thread behind both good bead appearance and sound weld metallurgy. That is true whether you are running a stringer on thin tube or a weave on a heavy cap.

Practice Deliberately, Change One Variable

Pick one pattern and drill it until your hands stop thinking. Then change a single variable—travel speed, or rod angle, or amperage—and observe what the puddle does. That deliberate loop builds real skill faster than welding random scrap. Our guide to welding practice walks through how to structure that repetition, and good E7018 technique is a great place to start for steady arc control.

Your Final Checklist

1. Read position, thickness, electrode, joint, and WPS before striking an arc.
2. Default to stringers; weave only when the joint calls for it.
3. Keep weaves within 2.5–3× electrode diameter.
4. Hold travel speed, work angle, and arc length steady.
5. Control heat input—it drives both appearance and metallurgy.
6. Never let aesthetics beat safety or code compliance.

Continuous improvement is the whole game. Keep practicing, keep notes on what your puddle tells you, and let every bead teach the next one. Pick a pattern this week, run a full plate, and judge the result by fusion first and looks second—that is how technique becomes repeatable. Practice is the only shortcut.

Frequently Asked Questions

What is the most common stick welding pattern for beginners?

Start with the stringer bead—a straight line with minimal side-to-side motion. It teaches arc length, travel angle, and travel speed without the added complexity of weaving, and it is the default technique for most real-world stick welding.

How wide should a weave bead be in stick welding?

A common rule of thumb is to keep the weave no wider than about 2.5 to 3 times the electrode diameter. Wider weaves slow your travel speed, raise heat input, and increase the risk of slag entrapment, undercut, and distortion.

When should I use a whip-and-pause technique?

Whip-and-pause is used mainly for root passes on open-groove joints with fast-freeze cellulosic electrodes like E6010 and E6011. The forward whip cools the pool edge and lets it freeze, while the return maintains the keyhole and deposits each ripple of the root.

Is weaving stronger than running stringers?

Not inherently. Stringers concentrate heat for deeper relative penetration and a narrower heat-affected zone, while weaves distribute heat and cover wider joints faster. Strength depends on fusion, heat input, and code compliance—not on pattern choice alone.

Can I weave with E7018?

Yes, but keep weaves limited and controlled. E7018 produces a smoother, more fluid puddle, and excessive weaving can trap slag and affect ductility. Many shops and procedures prefer stringer beads or parallel stringer stacking with low-hydrogen electrodes.

Why does my weave bead have undercut at the toes?

Undercut usually comes from excessive amperage, a long arc, fast travel, too wide a weave, or failing to pause at the toes. Narrow the weave, shorten the arc, slow slightly, and pause momentarily at each toe so the puddle fills the edge.

Which pattern is best for vertical-up stick welding?

Stringers are safest for control, but a triangle or pyramid weave is commonly used vertical-up because it builds a shelf that holds the puddle and stops slag from running ahead. Keep the weave narrow and manage heat carefully.

Does AWS D1.1 restrict weave width in stick welding?

AWS D1.1 does not flatly prescribe a weave-width-to-electrode ratio for SMAW, though it limits layer thickness and enforces workmanship criteria for undercut, convexity, overlap, and fusion. The 2.5–3x electrode diameter figure is an industry rule of thumb often written into WPS documents.

Do stick welding patterns affect fume exposure?

Indirectly, yes. SMAW is one of the highest fume-generating arc processes, and wider weaves or higher heat input can increase fume output. Regardless of pattern, keep your head out of the plume, use ventilation, and follow OSHA and NIOSH guidance on welding fume.

Authoritative Sources & Further Reading

• https://www.millerwelds.com/en-US/resources/knowledge-hub/stick-welding/five-steps-to-improving-your-stick-welding-technique
• https://pubs.aws.org/Download_PDFS/D1.1-D1.1M-2015-second-printing-PV.pdf
• https://www.osha.gov/sites/default/files/publications/OSHA%5FFS-3647%5FWELDING.pdf
• https://www.cdc.gov/niosh/welding/about/index.html
• https://stacks.cdc.gov/view/cdc/13115
• https://stacks.cdc.gov/view/cdc/187775/cdc_187775_DS1.pdf
• https://pmc.ncbi.nlm.nih.gov/articles/PMC4764053/
• https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1026
• https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.252
• https://www.cdc.gov/niosh/hhe/reports/pdfs/2019-0215-3371.pdf
• https://www.weldfabworld.com/welding-beads/
• https://www.codinter.com/en/advanced-stick-welding-techniques-for-challenging-applications/