Re: Tooth profile for designing synchronous drive sprocket?
Did you ever find the belt profile for an 8mm pitch GT2 pulley? I am in search of the same thing. I would like to make some aluminum pulleys for a boat out drive to try different belt ratios. I emailed gates directly and they sent me some of the drawings. I am trying to get them entered in fusion 360 to eventually output to the CNC mill.
Here are somethings I found so far:
https://capolight.wordpress.com/2018.../#comment-5093
https://build-its-inprogress.blogspo...68354574899572
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Re: Tooth profile for designing synchronous drive sprocket?
Here is the progress I made using Fusion 360 and the data Gates sent me for a 34 tooth GT2 tooth profile. I took the x,y values to make the circles in the first drawing. Then extruded one tooth and then did a circle mirror to get the full 34 teeth. I am going to try on the cnc soon. My only question if anyone is following this at all would be, changing the number of teeth need more than just a diameter change? I received a few tooth profile sheets and the main x,y values stay constant but there are some other values that change per size. Wondering a way to streamline this so it would be easy to change my cam model to try different sizes without having to do the trig each time. Also if you use the values of the tooth profile sheet and compare them to the ones of the downloadable 3d cad files on Gates website, they appear to be accurate. Most of the cad files will only show 1 tooth though so you will need to probably make your own cad drawing.