![]() ![]() ![]() I truncated the heights by 1/10th so that the sharp bits are not printed. I fitted trend lines to 2 parts of the M series to back calculated what my pitch could be per screw diameter and settled on: diameter 17 = 7.85%D+1. Next I calculated the Pitch using the ISO Metric series as a base. Turns out it is pretty straightforward: Choose the thread angle, the pitch diameter for the centre of the thread then truncate it with the major and minor diameters. So I created a spreadsheet to help me determine the correct diameters that Fusion360 uses to create threads. I started from here: Īnd realised I didn't know anything about threads even though I work with them often. I created a thread library for 45° threads with 0.2mm clearance for easy printing. Both of these take far too long for producing a thread and are PITA if you want to change your mind. I have printed threads a few times to join parts together, but all the examples on the web are either to use the built-in ISO metric thread and offset the 3 thread faces it until it works for you OR use the coil tool and draw the shape of your thread on a perpendicular plane and then form it around your cylinder. TLDR: Want easy thread creation in Fusion 360? Copy my XML thread library from to your Fusion 360 install folder and create 45° threads with specific clearances using the built-in Thread command. ![]()
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