Tuesday, August 9, 2022

I Think You Meant Marginal Cost

What The In-Crowd Will not Tell You About How To Draw Threads In Fusion 360I have created a macro / spreadsheet to create XML files for Fusion 360 threads. The screw thread feature only works on cylindrical faces, but if the cone angle is constant you could use a tapered thread type like NPT or BSPT which are used in pipe fittings. In one part of the tutorial you mention using tap & die to clean up 3D printed threads. The first one, which used the default clearance that Fusion 360 applies, is a little bit too tight. It actually got stuck on there and I had to use a vice and wrench to get it off. This default often doesn’t work on smaller thread sizes. We also want to make sure to add the same radius to our internal thread of the nut. I’ll turn the visibility of the nut component back on. I’ll make sure it’s active. Before reactivating the fillet command, I’ll select the edge again. This time, I’ll add a fillet radius of .15mm, which equals a total of .3mm, something that will make a significant difference in the print. If you look at the threads on most plastic parts, for example, the threads on a disposable water bottle, you’ll notice they’re almost always rounded over. As we all know, most metals are stronger than plastics, and they hold up better long term. I like to type out the clearance added to the default. For this one, I’ll type out -0.1 and I’ll extrude cut this down -.2mm to make a simple emboss. The second to last option is the thread direction. The majority of the time you’ll want to leave this on the default of right-hand. However, if you do find yourself working on a project where something loosens anti-clockwise, you’ll want to use left-hand, which will prevent loosening over time. Watch what happens to the pitch of the threads in the model as I change this to a lower pitch. The size option lets you change the size of the thread. If I switch this to 20mm, you’ll see that the designation switches to m20.


I used it a bit a few years ago and have that copy, and they continue to sell a "permanent" license version that is fairly reasonably priced. Plus, it looks like they have done a fair bit of additional work to make it work better for 3d. I bet all the personal licenses are running on a single cloud instance, while the paying users get reasonable response times. I wonder how much work it would be to turn it into a proper CAD tool. I would donate a significant chunk of my paycheck to Blender if it supported parametric CAD. 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.


It's an amazingly capable software, and you don't have to fear it will one day be bought by autodesk and ruined. Support free/open projects like FreeCAD. Let's boost it to Blender levels of incredible. The most popular platforms also are more in demand for jobs. So, future practitioners learn the most on demand platforms increasing the number of users of that platform. FLOSS software is also part of a capitalist market after all, especially via crowdfunding sites like Kickstarter, Indiegogo, Patreon etc. Mostly, what we need is more real competition and less focus on monopoly platforms as the only kind of "success" in this market. At the same time, companies can still capitalize on the different needs of the enterprise software. Creating threads is possible to do using the options in Fusion 360 but the method needs a little guidance. Most people initially end up with cosmetic only threads rather than fully constructed models. Don’t try to tell me though that for someone just starting out with experience in neither programming nor traditional CAD those other tools are easier to

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