GearHeads Forum

Thanks Art. I am sure that list is very long. I hadn't really considered this until recently either. Is there a way to make arbitrary shaped rotary gears? I can see the elliptical and logarithmic, but it would be great to be able to input a spline or a CSV file to dictate the shape. I have a laser ...

Hi,

I would like to create an arbitrary profile gear and matching rack to counter some non-linearity that appears in the linkage it is driving. Any thoughts as to how I could do this? It would be awesome if I could input a table or a spline and tooth along the profile. Any help would be greatly ...

I will second Sheetcam, it is incredibly fast and easy to use. It has limited capabilities, but they are well selected and well worth the price.

Art,

No problem and thank you for the continued replies. Nutating gears do create a lot more headaches with the shaft angles and such, but there are possibilities for CVTs and other functionality that I need for a project that are more difficult with other types of gearing. It is just a concept at ...

Nutating is probably more accurate. Something like:
http://www.eurekamagazine.co.uk/design-engineering-features/technology/wobbling-gears-achieve-high-ratios/2448/

or

http://scholarworks.wmich.edu/cgi/viewcontent.cgi?article=2946&context=honors_theses

On a completely different note, would it be ...

Thanks Art.

That works and I can reproduce them. I was trying to make gears with an angle higher that 90, and it never kicked an error, just kept making them 90. I swear I tried some 60 degree gears, but I guess I didn't.

I am looking to make a wobble gear. Any idea of a good way to do it?

Tim

Thanks for the quick reply Art. I feel like a moron, but no matter what I do I can never get the angle to change. I feel like I am missing something basic, but I can get pretty much every other feature of the program working. Could you possibly make a simple file and post it with non-90 degree ...

Hi,

This may be crazy simple, so sorry if it is. However, despite what number I put into the bevel angle box, the only gears it generates are 90 degree shaft angle. Any idea what is going wrong? Thanks

tim