Free

Universal Smartphone Case Generator

Fitted TPU phone case for any phone you can measure, with your own port and button cutouts

Universal Smartphone Case Generator is a free browser tool on MakerWorld for cases for phones with no ready-made options. Free; MakerWorld login needed. Selling cases requires the creator's paid commercial membership (price not shown on the model page). Exports STL and 3MF. Last checked .

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About this generator

Universal Smartphone Case Generator is a free MakerWorld customizer by Manufact3D_Hamburg that builds a fitted case for almost any phone from measurements you type in, which helps when no shop sells a case for your model. It runs an OpenSCAD script in MakerWorld's Parametric Model Maker, so you fill in a form in the browser instead of opening a CAD program.

You enter the phone's length, width and thickness in millimeters, then place the openings: the USB-C or Lightning port, speaker, microphone and headphone jack, zones for the power and volume buttons, and cutouts for cameras or sensors. Wall thickness is adjustable so the buttons stay easy to press, and a 2 mm rim stands above the screen to protect it in a face-down drop. The case is meant for TPU 95A or softer, so it flexes to snap on. For a rigid case, the same creator has a separate version 2 for PETG, PLA, ABS and ASA.

It has been customized more than 43,000 times. The catch is the measuring: you take every dimension and cutout position yourself, and several commenters asked for help with a specific phone or said the settings were hard to follow. It suits makers with calipers and a phone that is hard to buy accessories for.

What you can make

  • Flexible TPU phone cases
  • Cases for older or niche phone models
  • Fitted cases with port, button and camera cutouts

How to use Universal Smartphone Case Generator

  1. Measure the phone's length, width, thickness and the position of each port, button and camera with calipers
  2. Open the model on MakerWorld, click Customize and log in
  3. Enter the dimensions and cutout positions and check the preview
  4. Generate and download the case
  5. Print in TPU 95A or softer with at least 3 walls and 15 to 25% infill

What you'll need to print it

Filament and parts that suit what you make with Universal Smartphone Case Generator.

Also handy

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Universal Smartphone Case Generator pros

  • Works for any phone you can measure, including models with no cases in stores
  • Separate position settings for ports, speaker, mic, headphone jack, buttons and cameras
  • Adjustable wall thickness and a raised screen rim, tuned for a snap-on TPU fit

Universal Smartphone Case Generator cons

  • You measure the phone and every opening yourself, with no ready-made sizes for specific phones; commenters have asked what some settings mean
  • Buttons are open cutouts and there is no MagSafe ring or raised camera lip, all of which commenters have asked for
  • The print profile on the page is set to PETG or PLA even though the description recommends TPU, so switch the filament before slicing

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