Tapping Calculator for 3D printend Objects
This tool is a part of the open-source 3D Printing repository authored by Pieter Geelen.
The goal of this project is to create better, accessible standards and a standardization process for 3D printing, with a specific focus on FDM. You can find the full repository on GitHub: https://github.com/psmgeelen/3DPrinting.
The calculator helps you determine the ideal dimensions for FDM printed threaded holes based on metric screw standards. Adjust the parameters below to find the perfect balance between thread strength, printability, and ease of tapping for your specific needs. There are also 3D printable samples to test the strength of these threads available in the repo. A static model has been provided with the default settings. In the future a paremterized model will be made available so that pull and torque tests can be done easily.
Robustness
These parameters control the strength of the surrounding part to prevent cracking and ensure durability. Adjust them to achieve the desired wall thickness for your print.
Controls the multiplier for the diameter difference.
Adds an extra buffer for a stronger print path.
Tightness of Thread
These settings define the fit of the screw and the required depth for a secure thread engagement, affecting how tight the final connection will be.
Controls the inner diameter for tapping (e.g., 80% of major diameter).
Sets the hole depth as a multiple of the thread pitch.
Tap Preparation
This parameter governs the chamfer at the top of the hole, which is crucial for guiding the tap easily and preventing print errors or cracks.
Adjust the chamfer angle. This will affect the minimal depth calculation.