3D printing common 60° V thread profiles can be a frustrating experience. To generate an accurate profile thread needs to be printed in the vertical position, but this leads to overhangs of 60°, and that can be problematic to print. How problematic it is depends on a few factors, the filament in use, the print speed, and how much cooling is employed. The most common ways of guaranteeing a good print, are increasing cooling, or decreasing print speed. Increasing cooling can cause bad layer adhesion if taken to far, and slowing down the print speed can drastically increase print time.
A lot of people work around the issue by using custom thread profiles. Depending on what cad software you use, this can be easy or a very daunting task. I’m a Fusion 360 user, and I find it to be a fairly tedious task. To try and avoid manually creating a thread every time I want to print one, I decided to do some research a few weeks ago, and see if custom profiles can be loaded into Fusion 360. I found this Autodesk support article that explain how to load custom profiles. It’s kind of a hack, but it works well.
Given that custom profiles are possible I sat down and wrote a simple PHP script that generates the needed xml files for fusion. To ensure that the profiles are strong as well as easy to print, I chose a trapezoidal profile. The script generates 5 profiles with thread angles ranging from 50° to 90° (65° to 45° overhangs). The profiles also use a simpler and more generous tolerance system. The Fusion 360 xml files as well as the php script to generate them can be downloaded from the GitHub repository. If you are so inclined, you can easily update the script or json configuration file to generate completely custom thread profiles.
30mm dia, 10mm pitch 90° thread angle
I can’t believe it, but it’s been almost a year since I published a video. Dad life has really kept me busy lately, but i’ve started to find more time to play in the shop. last weekend I was able to sneak out into the shop and make this video about a topic that I find really interesting, rust bluing. Rust bluing is the process of generating the red rust everyone knows and hates in a controlled manner, and then turning it into a black oxide finish. A black oxide finish is the the finish found on older guns, and lots of machine tooling. I apologize in advance, i missed focus in one shot, and I was rushing a little because it was super hot in the shop, and I was racing against nap time!
In this video I show the maching of a simple aluminum adapter. The adapter will allow me to mount A Tentacle Sync E timecode generator to any cameras hot shoe. The Tentacle Sync E comes with Velcro hooks built into it’s body. It’s designed to be mounted to the cameras and camera gear with sticky back Velcro loop material. Since I Don’t won’t to apply the sticky back velcro directly to my cameras, nor do I think it would work well on my small mirrorless bodies, I designd this custom adapter.
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July 24, 2019 Comments are disabled
I recently purchased an excellent SmallRig cage for my Panasonic GH5, But the screw used to attach the camera to it didn’t live up to my expectations. Thus like any other home shop machinist, I made a custom one. The video shows how I took a standard button head cap screw and modified it to work with the camera cage.
The watch has a sturdy case back with pilot torpedoes and is part of Panerais history as a Royal Italian Navy watch supplier. Price 11, it was also a basic cheap
rolex replica with a burnt bezel and so on. Sale best
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My latest weekend woodworking project, was to turn an Osage Orange pencil holder to jazz up the office. Now all I have to do is wait for the wood to age to the color I want.
