Tolerance Stack-Up Analysis — Why Your Parts Don't Fit：核心...

[henry_huang]

Tolerance stack-up analysis explained:

What: Calculating cumulative effect of individual tolerances on final assembly fit.

Methods:

1. Worst-case (simplest, most conservative)
2. RSS (Root Sum Square, more realistic)
3. Monte Carlo simulation (most accurate)

A good rule: design tolerance 30-50% tighter than required to account for stack-up.

Full guide: https://www.mfgabc.com/guides/tolerance-stackup-analysis.html

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有没有同行遇到过同样的问题？分享一下经验。

[高65]

材料选型阶段多花点时间，后面量产能省很多麻烦，我们吃过材料选错的亏。

[邱78]

研发阶段多花点时间做验证，量产阶段就能少踩坑。我们流程是DFM提前介入，跟模具厂沟通好再开模。

[丁80]

我们做结构设计一般会用仿真软件先验证强度和变形，比直接开模试错省成本。