Parametric Pulley DXF

by geobruce, published

Parametric Pulley DXF by geobruce May 12, 2017


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I had the need for parametric pulley dxf's so I could import them in Fusion 360 and other software.

With this scad file you can choose the 3 parameters you'd like.

  • shaft diameter
  • tooth profile
  • number of teeth

after you set the values you'd like press F6 to render and than export to DXF.
for more instructions check my instructable: https://www.instructables.com/id/Design-a-Parametric-Pulley-DXF-STL

UPDATE: there is a file called V2 which is a little faster.

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You are a savior! I needed a large pulley for an electric skateboard I'm making, and I had a pulley before and I needed it to be bigger (I modeled the first one with a tiny bit of math and TRIAL AND ERROR. It was such a pain) This is so much bettwer than guessing and hoping it works, thank you so much!

I'm not a openscad guru myself
but i found this tool: https://github.com/lautr3k/odmt OpenSCAD DXF Merge Tool (odmt)
which you could try please let me know if it works

other than that I would suggest to see the original project this is forked from and than you can export a 3d model and import it in fusion360. And on to that face you can start a new sketch and you'll have your polyline

I ended up just tracing one tooth and doing a circular pattern, and after 5+ minutes of it loading it worked.

username checks out! :p
maybe some inkscape magic could do the job also

Nice to hear I was able to help you out!
Have fun with your board and be safe!

Please don't let me know if you have an accident with your board because of my DXF or i'll feel bad.. :p

Good luck and keep doing projects!

Ok so I got the file from your awesome program, but there are over 5000 lines and Fusion 360 keeps crashing. I tried to find a DXF line reducer but this "free demo" wouldn't let me save the reduced dxf :( Do you have any ideas on how to reduce it

I wished this worked, unfortunately it is completely useless for any CAD software when you set parameters with more than a handful of teeth. Using this to make a pulley with greater than 100 teeth is impossible and will crash any and every up to date CAD software available on the market today.

for me this works perfect please tell me what kind of pulley you're trying to make and I'll test it

Worked flawlessly, thank you so much!

I'm happy I could help someone

I cannot export it to STL no matter which variables I choose. It always says "Top level object is a 2D object:" How do I make a 3d object?

the title says it's a dxf so it is a 2d file for the 3d file check the original design where this is forked from.
This is to get the profile in 2d to extrude in your favorite 3d cad software.

worked flawlessly, however is the exported file measured in mm or inches? I have to choose when I import it into another cad program?