Machine-Readable
Papa’s Best STL Thumbnails icon

Amigurumi Crochet Patterns - Complete Step By S... Apr 2026

A shell extension that adds preview thumbnails for STL files to Windows Explorer. Runs on Windows 7 or later.

Can also be used with Total Commander and FreeCommander.

Papa’s Best STL Thumbnails displaying a folder with random STLs from thingiverse

Download

Updated (changes, license).

Feel free to donate if you like my program!

64-bit Setup

recommended

32-bit Setup

for old systems

Video Guide

Michael from Teaching Tech made a video guide about the installation. He was so kind to allow me to embed it here! Thumbnail installation starts at 1:49.

Fast

Thumbnail generation is based on the fastest STL viewer available. Folders full of STL files are no problem, and most STL thumbnails are generated as fast as those of JPG photos.

Free

Compatible

Papa’s Best STL thumbnail viewer displays countless STL variations, even where other programs fail:

Custom colors

a folder with thumbnails, their background purple and the objects mint green

Custom object color is ignored if the STL comes with embedded color information! Changes do not take effect on existing thumbnails until you clear the Windows thumbnail cache! This is a Windows limitation.

Via Papa’s Best STL Viewer

  1. download and run my STL Viewer (if you don’t want to install it on your system, choose the portable version)
  2. from the menu, select an object color via ViewSelect Default Material …
  3. select a background color via ViewSelect Default Background …
  4. clear the Windows thumbnail cache

Via registry (for advanced users)

For automation and easy deployment, the color settings are loaded from the registry key HKEY_CURRENT_USER\SOFTWARE\Papa’s Best. Create values according to the following table. If a value is missing, its default is assumed.

Name Type Default Meaning
DefaultBackgroundColor DWORD 0x00000000 Background color for thumbnails. Format is 0xRRGGBBAA.
DefaultObjectColor DWORD 0xffffffff Object color for files without built-in color information. Format is 0xRRGGBBAA. Transparency is not supported.
InitialEyeYawDegrees DWORD 28 Horizontal rotation of the viewer, in degrees. Positive rotates right.
InitialEyePitchDegrees DWORD 331 Vertical rotation of the viewer, in degrees. Positive rotates down.

Installation for all users

Papa’s Best STL Thumbnails installs for the current user by default. To install for all users on a system, open a command prompt or a PowerShell and run msiexec /i "Papas Best STL Thumbnails.msi" MSIINSTALLPERUSER="".

Repeat with every update!

Amigurumi Crochet Patterns - Complete Step By S... Apr 2026

Amigurumi is a style of Japanese knitting or crochet that involves creating small, cute, and often cartoon-like characters or objects. The term “amigurumi” comes from the Japanese words “ami” (to crochet or knit) and “nuigurumi” (stuffed toy). Amigurumi crochet patterns typically feature small, rounded shapes, cute facial expressions, and intricate details.

Let’s create a simple amigurumi crochet pattern, a cute rabbit. Follow these steps: To start, create a magic ring using your yarn and crochet hook. A magic ring is a technique used to create a small, circular foundation for your project. Step 2: Crochet the Body Crochet 6 single crochet stitches into the magic ring. Pull the yarn tail to tighten the ring. Step 3: Increase Stitches Crochet 2 single crochet stitches in each stitch around (12 stitches). Step 4: Continue Crocheting Continue crocheting in rounds, increasing stitches as needed to shape the body. Step 5: Stuff the Body Once you’ve completed the body, stuff it with polyester fiberfill or cotton batting. Step 6: Crochet the Ears Crochet 2 small triangles for the ears using single crochet stitches. Step 7: Attach the Ears Attach the ears to the top of the head using a tapestry needle and some yarn. Step 8: Add Facial Features Use embroidery floss or yarn to create the facial features, such as eyes, nose, and mouth. Step 9: Finish and Enjoy Fasten off the yarn, and your amigurumi rabbit is complete! Amigurumi Crochet Patterns - Complete Step By S...

Amigurumi crochet patterns have gained immense popularity in recent years, and it’s easy to see why. These adorable, cute, and often quirky creatures have captured the hearts of crafters and enthusiasts worldwide. If you’re interested in creating your own amigurumi crochet patterns, you’ve come to the right place. In this comprehensive guide, we’ll take you through a complete step-by-step process to help you get started. Amigurumi is a style of Japanese knitting or


Dark background on some thumbnails

a folder with two thumbnails whose background is entirely black

Clear your Explorer thumbnail cache (see above) or copy the file to a different location.

This is a bug in Windows 10 that also affects other thumbnails – for example transparent PNG images here and here.

I can’t do anything in my program to work around it, I’m afraid. Please use the Windows 10 feedback function to report this to Microsoft. If enough users do it, they may eventually fix it. Windows 7 does not have this bug.


Something Missing?

Encountered a problem? Have a suggestion? Let me know: