Shoe Pattern Making Curve Ruler

Model: SPR-32 / SPR-40           

Specification	SPR-32 Standard Pattern Type	SPR-40 Extended Layout Type
Material	High transparent acrylic (PMMA)	High transparent acrylic (PMMA)
Total Length	32 cm	40 cm
Scale Accuracy	1 mm	1 mm
Scale Unit	Centimeter scale, dual-side marking	Centimeter scale, dual-side marking
Thickness	2 mm	2.5 mm
Positioning Holes	5 pcs (different diameters)	6 pcs (different diameters)
Built-in Contour	Shoe upper arc, collar curve, tongue profile	Shoe upper arc, collar curve, tongue profile, side panel curve
Surface Treatment	Wear-resistant ink printing, scratch-resistant	Wear-resistant ink printing, scratch-resistant
Package Form	Individual OPP bag + export carton	Individual OPP bag + export carton
Pcs Per Carton	100 pcs	80 pcs
Net Weight Per Piece	18 g	28 g
Carton Gross Weight	2.2 KG	2.8 KG
Carton Size (L×W×H)	340×120×80 mm	420×130×90 mm

Shoe Pattern Ruler, Pattern Making Scale Ruler For Footwear Pattern Layout

This shoe‑pattern‑making French curve ruler is made of high‑clarity acrylic material for excellent light transmission, enabling precise alignment with pattern outline lines during drawing and improving overall accuracy for upper pattern drafting and size grading. Precisely engraved graduations filled with wear‑resistant special ink stay legible and resist fading and abrasion to maintain consistent measuring standards under heavy‑frequency long‑term use.

Its ergonomic comma‑shaped curved profile perfectly matches common upper arcs such as shoe collar, tongue, side panel and heel curves, covering most daily drawing and pattern‑checking tasks in shoe factories. Multiple locating holes of different diameters allow pattern‑makers to mark fixed points and draw circular spots, assisting pattern grading and material layout optimization. Complete clear scales are printed on both sides for convenient operation by both left‑handed and right‑handed users, cutting adjustment time and boosting pattern‑room efficiency.

All finely‑polished smooth burr‑free edges prevent scratches on paper patterns, genuine leather and microfiber materials during marking. Lightweight yet sturdy, it resists breakage under normal workshop conditions and serves as an essential standard tool for professional shoe‑pattern rooms, sample‑development studios and custom‑shoe workshops. Adopting industry‑standard graduations compatible with mainstream shoemaking‑pattern‑making systems, it is easy to operate for both veteran pattern‑makers and beginners. Multi‑functional for arc‑length measurement, smooth arc drawing and full‑size pattern grading, it supports design and sampling for leather shoes, sneakers, casual shoes and boots. Compact and portable, it fits permanent workstation placement as well as on‑site sampling. The smooth surface can be easily cleaned with a soft dry cloth to retain transparency and legible scales.

Standardized mass‑production ensures minimal consistent dimensional tolerances across batches and meets production‑management requirements for unified tool specifications and measuring standards in large‑scale shoe‑factory pattern rooms. Widely supplied to shoe‑factory pattern rooms, original‑footwear‑design studios, custom‑shoe workshops, shoemaking‑training centers and brand‑enterprise new‑product‑development departments, this multi‑functional curve ruler is mainly used for upper‑pattern drawing, full‑size grading, arc‑dimension measurement, contour tracing and point marking for sampling and mass‑production pattern‑making across all footwear categories, suitable both for mass‑assembly‑line pattern development and small‑batch custom‑sample production.

Two overall‑length sizes are offered for basic daily drawing and large‑area upper layout measurement respectively, delivering an accurate, durable and integrated measuring‑drawing toolset to enhance pattern‑room precision and productivity. Simple standardized operation: inspect surface scratches and scale integrity before use and confirm suitable ruler size; lay flat against paper patterns or shoe‑material blanks, align graduations and curved edges with reference lines and perform drawing‑measurement under sufficient light for reliable readings. Use locating holes of matching diameters for point marking to avoid pattern deviation caused by offset spots; draw smoothly along curved edges and refrain from heavy scratching with sharp pens to extend service life. Wipe dust and residual marks with dry soft cloth after daily work and keep away from corrosive chemical solvents to protect printed ink.

Follow complete periodic‑maintenance and storage specifications: clean surface stains with soft cloth, store separately away from sharp tools such as blades and awls to prevent surface scratches. Weekly routines include checking scale abrasion and edge cracking and clearing paper debris from locating holes. For long‑term storage lay flat in cool dry warehouse away from direct sunlight and temperatures above 60 ℃ to avoid acrylic yellowing and thermal deformation. Avoid dropping, heavy impact, forced bending and cutting materials along ruler edges to prevent edge damage and accuracy loss. Clean undamaged rulers can be reused repeatedly with low wear‑and‑tear rates, helping factories reduce tool‑procurement costs and satisfying workshop management requirements for green consumption and standardized circular production.