Quick CAD Tutorial: Frame Length Modifications in Fusion 360

Published on October 8, 2021
Duration: 8:41

This tutorial demonstrates how to modify the length of a 3D-printable firearm frame using Fusion 360. It covers techniques for shortening a frame by splitting the body, extruding a section, moving the remaining part, and rejoining them. The process is illustrated using the 'Big Chungus' frame for compatibility with different Glock slide lengths, emphasizing the use of native CAD files over STLs for modifications.

Quick Summary

Learn to modify firearm frame lengths in Fusion 360 by splitting the body, extruding excess material, and rejoining the parts. This expert CAD tutorial focuses on adapting frames for different Glock slide lengths, emphasizing the use of native CAD or STEP files over STLs for precision.

Chapters

  1. 00:00Introduction & Tutorial Overview
  2. 00:24Glock 17L vs. Glock 34 Frame Lengths
  3. 00:58Why Native CAD Files Over STLs
  4. 01:31Preparing the Frame for Modification
  5. 02:08Slicing the Frame Body
  6. 02:48Extruding and Moving Frame Sections
  7. 03:31Combining Frame Bodies
  8. 03:57Re-adding Debossed Logos
  9. 04:27Exporting and Availability
  10. 04:53Conclusion & Future Tutorials

Frequently Asked Questions

What is the best file type to use for modifying firearm frames in CAD software like Fusion 360?

For modifying firearm frames in CAD software, it's highly recommended to use native CAD files (like Fusion 360's .f3d) or STEP files. These formats preserve the model's geometry and features, allowing for precise edits. STL files, commonly used for 3D printing, lack this detail and are not suitable for accurate CAD modifications.

How do you shorten a firearm frame in Fusion 360?

To shorten a firearm frame in Fusion 360, you'll create an offset construction plane at the desired cut point. Then, use the 'Split Body' tool to divide the frame. Next, select the section to be removed and use 'Extrude' with a negative value. Finally, move the remaining part to close the gap and use the 'Combine' tool to rejoin the bodies.

What is the typical length difference between a Glock 17L and a Glock 34 slide/barrel?

The difference in barrel length between a Glock 17L and a Glock 34 is approximately 0.71 inches. This translates to about 18.034 millimeters. This measurement is crucial when modifying a frame designed for one slide length to accommodate the other.

Can you add custom logos or text to a modified firearm frame in Fusion 360?

Yes, you can add custom logos or text to a modified firearm frame in Fusion 360. This is typically done by importing an SVG file of the desired design, sketching it onto the frame, and then using the 'Extrude' command with a negative offset (e.g., -0.5mm) to create a debossed effect.

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