Hi there, I am designing at the moment a new printer. Rather than ordering a few closed loop belts to see which one fits, is there a way in fusion 360 to work out the belt size based on the distance apart of a 20 tooth and 40 tooth pulley for the GT2 belt? If so I would love some hints please as I do not have the pulleys just yet. Thank you.
Using pitch diameter on the gears should work but it's far easier (and definitely more reliable) to use - SDP/SI eStore.
That is very useful for the use of 2 gears BUT, what if there are 3 gears being used?? Kinda like a V shape of gears where the main is 20t and is driving 2- 40t gears??
Same story, lay it out using pitch diameter and then let the program calculate the continuous length. Not sure what program you're using but I know it's fairly simple in AutoCad. (I use the 2008 version)
First determine pitch diameter for the pulleys. Pitch diameter = (number of teeth x tooth spacing) / pi. So in this case pitch diameter = (40 x 2) / pi = 25.46mm. Draw the diagram based on the pitch diameters located at the proper center-to-center spacing. Connect the circles with tangential lines. Total belt length equals the 3 tangential lengths plus the 3 radial lengths. Radial length = (the included angle divided by 360) x (number of teeth x tooth spacing). In Autocad rather than doing all the math you just trim away anything unnecessary, join all the line segments together, and then take a properties on the combined line form and it'll give you the total length. Sorry, not sure how to do that in Fusion360.
