Uploaded December 2025 | Updated September 2026, 2 weeks ago

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Challenge Number 25-12-06 - TooTallToby shows as STEP by STEP tutorial on how to build this complex part in FreeCAD.
👉 Library of over 250 REAL WORLD parts -- TooTallToby.com

References:
Toby's FreeCAD Shortcuts:
youtube.com/watch?v=38IsxrJzSoc&list=PLzMIhOgu1Y5fhIJJ3f6qfpUtpbJirCBxo&index=2

Using the CENTER OF MASS Macro:
youtube.com/watch?v=Y-iDnaOTw7U&list=PLzMIhOgu1Y5fhIJJ3f6qfpUtpbJirCBxo&index=1

TooTallToby Discord: discord.gg/cj9GbkE6Tg

0:00 Intro
1:51 Making a plan
4:10 Create a new document in FreeCAD
5:09 Extrude the head of the HEX BOLT
5:23 How to create a HELIX in FreeCAD
7:40 Create a PROFILE PLANE which is PERPENDICULAR to the path (helix)
9:45 Create a sketch of our CUSTOM THREAD PROFILE
13:20 Sweep a custom thread profile along a helix in FreeCAD
14:55 Extrude the main 20mm dia shaft of the HEX BOLT
16:38 Create the lead in chamfer for the HEX BOLT
18:55 Create the Head Chamfer for the HEX BOLT
20:10 Assign a material to this body (ABS Generic - not correct, but close)
20:30 How to measure or calculate Mass in FreeCAD
21:00 Entering our answer

#FreeCAD #tutorial #Sweep #helix #threads