Fabricators Handbook app icon

Fabricators Handbook

Sheet metal pattern development tools, flange/ tube tables, useful calculators

Gellis apps · appinventor.ai_1954gellis.Fabricators_handbook

Not rated yet 100K+ downloads vOctober 25 update 5.9 MB Android 4.0+ PEGI 3 · Everyone

  • Signature matches the Google Play version Details

At a glance

Latest version
vOctober 25 update (13)
Updated
Feb 28, 2026 (7 months ago)
APK size
5.9 MB
Requires
Android 4.0+ (API 14)
CPU support
Any (no native code)
Category
Tools (app)
Listed since
Feb 18, 2021 (at least)
Permissions
2 (1 sensitive)
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

Fabricators Handbook is an app by Gellis apps in the Tools category, listed since at least February 2021. It has no native code, so it runs on any Android processor.

Since version Sept 23 update, the minimum Android version rose from 2.1 to 4.0. It asks for 2 permissions, 1 of them sensitive: read shared storage. It asks for the same permissions as version Sept 23 update.

Description

From the listing uploaded by “appupdater”.

Sheet metal pattern development tools for cones, segmental bends, set on pipes. Plus flange/ tube tables, various calculators and more. This could be the most useful tool in your toolbox. As a fabricator of 45+ years, the last 30 or so as the workshop manager, I have constantly used trigonometry etc. to calculate cones, segmental bends and much more. Nowadays I am constantly asked by the fabricators to calculate developed lengths etc. to save them the time and effort of laying it out. I have developed this app so that they can do it for themselves and therefore save “MY TIME”. The Fabricators Handbook is a collection of apps useful to the experienced fabricator and novice. Various pipe and cone developing app for wraps and plate. Tables for flanges, tube schedules, elbows and tees, as well as metric and unc drilling / tapping sizes. Calculators include, Angle Calculators to enable the fabricator to layout accurately small or large fabrications, Pitch Calculator for PCD's and straight pitches, Diameter and Circumference calculator for working out the required developed length for rolling and a Bisecting Chord calculator that works out the inside or outside radius of an object using a straight edge and a ruler. How to examples are available where needed. I hope that from your feedback/comments I will be able to add extra relevant features and amendments in future editions. For details on how to use the apps in the handbook and tips, please visit the Website http://fabricatorshandbook.simplesite.com or click on the link l below.

Version history

2 versions are listed, going back to vSept 23 update. Since vOctober 25 update it requires Android 4.0+.

All 2 versions

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Feb 28, 2026.
  • Certificate issued to “AppInventor for Android” This is the certificate of the Google Play version.
  • Same certificate as the other version checked

Store checks and file details

  • Developer signature verified Feb 28, 2026
  • Validated against Google Play Feb 28, 2026
  • Signed by[email protected], O=AppInventor for Android, C=US
  • Signing certificate (SHA-1)F7:48:7A:11:3C:52:AD:97:AD:6E:9C:6B:5E:57:EE:A7:CE:D2:FE:7D
  • File MD5be7cae6acf7fb5df9fd2ee2c9fa13075
  • Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (2)

Fabricators Handbook requests 2 permissions, 1 of them sensitive.

Required hardware & features

Fabricators Handbook APK: questions and answers

Is there a version of Fabricators Handbook for older Android phones?

The current version needs Android 4.0 or later. Version Sept 23 update is the newest listed build that installs on Android 2.1 and later. Get version Sept 23 update · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Fabricators Handbook APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the other version checked. After downloading, check that the file's MD5 is be7cae6acf7fb5df9fd2ee2c9fa13075.

Tags

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