Radioactive Alert Badge Embroidery Design: Nuclear Symbol Patch Machine Embroidery File

The Radioactive Alert Badge embroidery design is a two-color circular patch composition featuring the international radioactive hazard symbol rendered in vivid yellow and dark charcoal-black fills within a thick dark circular border frame, built from three evenly spaced black trefoil blade fills radiating from a central black disc hub against a fully filled yellow background field. The design replicates the official trefoil radiation symbol in patch format with precise rotational symmetry across all three blade elements and clean color boundary management between the yellow field and the black trefoil geometry. Total stitch count is 9,494 stitches.

What distinguishes this design from other symbol or warning badge embroidery files in a graphic collection is the strict rotational symmetry requirement of the trefoil symbol. The three black blade fills must be positioned at exactly 120 degree intervals around the central hub disc, and each blade must be geometrically identical in shape, size, and fill angle relative to its own radial axis. Any deviation from perfect rotational symmetry in the blade placement or shape is immediately recognizable as an error in a symbol that is universally understood to be rotationally uniform.

Design Details

The outermost element is a thick circular border band in dark charcoal satin fill, stitched with a curved fill direction that follows the ring circumference and provides the patch with a clean dimensional edge. Inside the border, the circular field is filled with a dense vivid yellow satin stitch across the full disc area, creating a bright, saturated background that maximizes the contrast with the black trefoil elements applied over it.

The trefoil symbol is centered within the yellow field and consists of four elements. The central hub is a small filled black circle disc at the exact geometric center of the composition. From the hub, three identical blade fills extend outward at 120 degree intervals, each blade being a broad wedge-shaped fill that widens from its inner radius near the hub to its outer arc at approximately two-thirds of the disc radius. The blades do not reach the outer border of the disc, leaving a yellow annular band between the outer blade edges and the border ring. Each blade is filled with dark charcoal satin stitch using a fill angle specific to each blade's radial orientation. Between adjacent blades, the yellow background is visible as three equal-sized curved gap zones that alternate with the three black blades around the hub circle.

Size Guide

Formats Included

• PES, PEC — Brother, Baby Lock, Bernina
• DST, DSB — Tajima
• JEF, SEW — Janome, Elna
• VP3, VIP, SHV, HUS — Husqvarna Viking
• PCS, PCQ, PCD — Pfaff
• XXX — Singer
• ART — Bernina software
• 000 — Singer/generic
• 100 — Toyota
• CND — Melco/Conde
• CSD — Singer/POEM
• DGT — Barudan
• DSZ — Tajima older
• EMD — Elna
• EXP — Melco/Bernina
• INF — design info

Digitizing Quality

The primary technical challenge in this design is maintaining clean yellow-to-black color boundaries at all six blade edges across the three trefoil blades without applied outline stitching to mask boundary drift. Each blade has two straight radial side edges and one curved outer arc edge, and all six straight edges plus the three outer arcs must terminate cleanly against the yellow background fill without color bleed in either direction. Pull compensation on both the yellow background fill and the three black blade fills is calibrated to draw each fill inward away from the blade boundaries, keeping the color transitions sharp and the blade geometry clean on fabric.

The rotational symmetry of the three blade fills requires that each blade's path geometry, fill angle, and pull compensation produce visually identical results on fabric despite the three blades being oriented at different angles relative to the stitch direction. A fill angle that is well-aligned with one blade's radial axis will be cross-grain to another blade's axis at 120 degrees of rotation. Each blade is therefore digitized with its own independently set fill angle aligned to its specific radial orientation, ensuring consistent fill surface quality across all three blades regardless of their angular position in the composition.

The small central hub disc shares the same boundary management challenge as the pit disc in the Organic Style Avocado Patch: a small black circle whose boundary must read as a true circle against the surrounding yellow field without an applied outline to define it. At the hub scale within a 2.86 inch composition, the hub disc is compact enough that any boundary pull asymmetry between the black hub fill and the surrounding yellow fill would produce a visibly non-circular hub on the finished embroidery. The hub boundary uses equal and opposite inward pull compensation on both adjacent fills to maintain its circular form after fabric response is accounted for.

License

This design is licensed for personal use and small commercial production of finished physical goods. You may sell embroidered items created with this file. The digital files themselves may not be resold, redistributed, shared, or included in any digital product collection.

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Files are available immediately after purchase with no waiting and no shipping. This listing includes 1 size in 26 embroidery formats. Complete your purchase and download your full file package directly from your order confirmation.