SAME PART, 5X PRICE? How Tolerances Drive Up CNC Costs

Why does the exact same 3D model with identical dimensions cost $10 on one quote, but $50 on another? The hidden culprit is often a single decimal place on the drawing's tolerance callout. In this video, we compare ±0.05 mm and ±0.005 mm to explain how tighter tolerances affect machining time, finishing operations, inspection requirements, and the risk of rework and scrap. First Mold can achieve CNC machining tolerances as tight as ±0.005 mm when required. Before production, our engineering team reviews critical dimensions, datum schemes, tolerance stack-ups, and inspection requirements to determine where that level of precision is truly necessary. ⏱️ CHAPTERS / TIMESTAMPS 00:00 - The $10 vs $50 Quote Mystery 00:28 - Cost Driver #1: Machining & Processing 00:58 - Cost Driver #2: Inspection & CMM Requirements 01:18 - Cost Driver #3: Rework, Scrap & Risk 01:33 - How First Mold Optimizes Tolerances & DFM 01:57 - Common CAD Drawing Mistakes & GD&T 02:26 - Upload Your 3D Models for Free DFM Review 📩 Need a DFM review or custom CNC quote? Upload your 3D CAD files (.STP, .STEP, .IGS) to First Mold: https://firstmold.com/quote/?utm_sour... #cncmachining #dfm #manufacturing #engineering #tolerance #gdandt #FirstMold #hardwaredesign #mechanicalengineering