Drawing more Flexible Screw Threads in Fusion 360

I will probably publish it tomorrow. Just have to test it one time watering the plants tomorrow morning. I discovered today that I can put 2 of them together. That should work even better. I now have to add a tab3 for fine tuning coil options. A rectangle profile with changeable width height would be appropriate for this design.

2 Likes

I decided to see if I could code this garden hose wrap in OpenSCAD now that I understand drawing a helix. It only took 73 lines of code when I take out the comments & print statements. I might think about converting my thread routines to OpenSCAD to get Real offsets. I used the Hull command to combine each rectangle profile along the helix path. It is actually pretty fast since they added that manifold speedup feature to the program.

1 Like

After making the OpenSCAD source for the garden hose wrap, I went back & made a fusion 360 python script that does essentially the same thing. The source files I have here:

I also posted this to thingiverse and printables & linked to GitHub for the source files.

https://www.printables.com/model/914558-garden-hose-wrap-for-kinks-in-the-hose

1 Like

I added coil & spirals to my thread add-in on a 3rd tab & got a little carried away. I added profiles for circles, polygons, rectangles & stars. I do want to add profiles for triangles in different orientations. That’s all the profiles I could think of for now. Anyone have other profile suggestions? I don’t know how useful stars would be but were fun to put them in there & ChatGPT was happy to write the code for those. For the polygons or stars, you can use as many sides or points as you want. I will test it a little more before releasing this version. Most of the code is essentially separate from the threading, so hopefully I didn’t break any of that. Here are what some of the examples look like.

5 Likes

I was talking to a friend a breakfast & he mentioned that some liquorice sticks having a shape similar to that star shape which made me think that might be an interesting shape to use with the Cocoa Press printer.

I also did a quick google search for geometric shapes to get some more ideas for profiles. Ellipse, trapezoid, diamond, channel, Parallelogram, kite profiles I didn’t think of before. Most of these shapes could be manually created after the initial run of the program & go back & edit the profile. Ellipse would be an easy one to add though.

I uploaded the new version with Coil options today.

3 Likes

Dude, this is so cool. I just installed it and ran it. Neat.

1 Like

Thanks. It was fun to write.

I fixed numerous bugs in the coil & spiral part of the code.

  1. For ellipse sections, I was using radii for ellipse instead of diameters
  2. I had the inside & outside section position backwards from the way Fusion uses them, so I made that consistent with fusion

I still have to add the English units to the Coils section but will see if any more bugs in current code need fixing first.

1 Like