Sunday, February 26, 2023

Methods To Learn How To Draw Threads In Fusion 360

Choosing How To Draw Threads In Fusion 360In my experience, tapping a plain hole in a 3D print runs the risk of delaminating the print. Fusion360 offers the option of just showing a thread form in a drawing/model or actually modelling it in the file. It is a simple check box in the thread dialog box. If the cone angle is not constant, you'll have to model your own thread type. You'll need to do a sweep cut of the profile along a path. Therefore, one of the things you can do with your 3D printed threads is to add a fillet or nice round over to the edge of the threads. There are so many factors in play between 3D printers being different, setting up the file in slicing software, and so on. Just keep in mind that as threads get smaller they’ll lose some of the finer details, and their clearance may need to be tweaked even more. This first thread and nut, is going to be our first clearance test. Depending on the size of the thread and the tolerance of your 3D printer, this default clearance typical needs modifications…but we’ll use it as the start of our test. The next step would be for us to apply the internal thread to the nut. To do this we can activate the thread feature. Simply select the inside cylinder. I’m going to use the circumscribed polygon to create the hex nut. From the center origin, I’ll type out a radius of 12mm. You can also clear out the command with the escape key, select the horizontal constraint in the toolbar, and select an edge. This will make sure the sketch is fully-constrained. Lastly, is the ability to check the β€œremembered size” which will remember all of these thread settings for the next thread feature you create. Because I’m going to copy this first component, I’m not going to worry about checking this option. Size the boss diameter to the largest diameter of the insert. Apply a small bead of glue before installing. Make sure the part is fully dry. Cured for best results. Maybe that has already been answered. You can point me in the right direction. For very fine threads, the answer is always simple - NO.


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