What Should Be on a CNC Machining Drawing? A Complete Checklist
A CNC drawing has to answer twelve questions before the shop can quote you. Here is the complete list, what happens when you skip each item, and the ten-point pre-send check.
Read MoreInsights and Updates on Precision Manufacturing Technologies
Buyer's guides written from our own machining data: choosing an alloy, deciding between 3-axis and 5-axis, designing tolerances and wall thickness, comparing surface finishes, and getting a CNC quote you can trust.
A CNC drawing has to answer twelve questions before the shop can quote you. Here is the complete list, what happens when you skip each item, and the ten-point pre-send check.
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Where a CNC quote actually goes, which cost drivers you can pull without touching the function, and the ten small changes that add up to $24–63 saved per part.
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Powder coating, e-coating, hot-dip galvanizing and anodizing are not interchangeable. How each one behaves on your part, how much it grows the dimensions, and what to write on the drawing.
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The minimum wall thickness for CNC machining is 0.5 mm in aluminum, 0.8 mm in steel, 1.0 mm in titanium and 0.4 mm in engineering plastics, but the recommended figures are 1.0, 1.5, 1.5 and…
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A tolerance stack is where the assembly stops fitting. How to run the worst-case and RSS calculations, which fit to use where, and what each machining process can actually hold.
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DFM means designing a CNC part so it can be machined repeatably at a predictable cost. The five checks, the wall thickness and tolerance numbers, and the design changes that cut the most…
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Ra from 0.05 to 6.3 µm explained: what each value looks like, which finish reaches it, how much material finishing removes, and what a buyer should actually write on the drawing.
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3-axis, 4-axis, 3+2 and simultaneous 5-axis milling compared on cost factor, accuracy, surface finish, part size and batch size, with a decision table and the design rules that keep a…
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Ti-6Al-4V and Grade 2 titanium compared with 6061-T6, 7075-T6 and 2024-T4 aluminum on strength, density, specific strength, machining speed and real cost, with a decision table for drawings.
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Aluminum and steel compared on density, tensile strength, specific strength, machinability and weldability, with a decision table for choosing between 6061, 7075, 1045, 4140 and 4340 on a…
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6061-T6 and 7075-T6 aluminum compared on yield strength, tensile strength, fatigue strength, fracture toughness, corrosion resistance and machinability, with a decision table you can apply…
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Live from the show floor at FABTECH 2026: booth N9650, real machined samples, and the North American job shops walking up to ask about tolerance, traceability and who signs the inspection report.
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BMW's annual audit team walked into our factory. Full traceability in under 15 minutes, 100% original records on the spot, zero critical non-conformances. This is the confidence of Chinese precision manufacturing.
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Sinbo Precision team visited the 27th ITES Shenzhen Industrial Exhibition, experiencing cutting-edge manufacturing technology, automation solutions, and precision components. Discover AI-driven manufacturing innovations and industry trends from this premier industry event.
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Sinbo Precision will exhibit at FABTECH 2026, North America's largest metal forming, fabricating, welding and finishing event, October 21-23 at the Las Vegas Convention Center. Visit our booth to discover precision CNC machining solutions.
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Sinbo Precision Mechanical Co.,Ltd. successfully held its 2026 Spring Reception and Annual Award Ceremony with the theme "Dreams Set Sail for the Future, Sinbo Spring Reception Opens a New Chapter". Company leaders and all colleagues gathered together to honor outstanding employees, hold interesting interactive activities and lucky draw, and unite as one to start a new journey on the precision manufacturing track.
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Sinbo Precision team visited Foshan International Machine Tool Exhibition to gain insights into the latest CNC machining technologies, smart manufacturing solutions, and industry development trends.
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Sinbo Precision recently concluded a highly successful participation at the prestigious Dubai World Trade Center Exhibition, showcasing our cutting-edge precision manufacturing capabilities.
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