Category Archives: Guides

You’re Properly Doing 3D Printing Tolerancing Wrong. Here’s a Better Way.

Do you use 3D printing to make functional parts? Do your printed parts have slight dimensional errors, such as undersized holes? It is essential to take care of this if you use your FDM 3D printer to make precise or functional parts. Here’s the easiest and most elegant fix, using nothing but your slicer and a caliper.

Because the extruded molten plastic gets squashed by the nozzle and also flows outward toward the sides, everything you print is fattened, creating overall oversized prints and undersized holes.

Fortunately, there are ways to fix this flaw. First, I would recommend against these methods, if you currently use them:

Bad methods

  • Compensating by slightly changing the values in CAD: this is cumbersome if you use different printers or have collaborators, and problematic if you work with assemblies in CAD.
  • Changing the size in the slicer: FDM 3D printers generally have undersized ID and oversized OD, so enlarging or shrinking the size is bound to reduce one problem while worsening the other.

The Elegant Way: Horizontal Expansion

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MateBook X Pro Bottom Creaking Fix

The Problem

The bottom of the Huawei MateBook X Pro makes a creaking or squeaking noise when you lift the laptop by a bottom corner.

The Cause

The noise is not caused by the laptop’s body but by the crinkling of the battery’s wrapping. You are exerting pressure on the battery area, slightly bending the bottom panel and pressing the battery.

The Solution

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Improving MateBook X Pro’s Speakers

The MateBook X Pro has some of the best speakers on any ultrabook. Unlike most laptops, it has 4 speakers instead of 2: there are a pair of up-facing tweeters under the speaker grill and a pair of down-facing woofers on the laptop’s bottom corners. The crisp up-firing tweeters greatly enhance soundstage and imaging. Nevertheless, these speakers are not perfect, and here’s some ways we can improve them.

Analysis in Stock Form

You can refer to this graph to adjust your equalizer setting in the Dolby app. You can also right click and download my Room EQ Wizard file to generate an equalizer setting for Equalizer APO. But to get much better sound, read on.

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