Recent content by teliocide

It is to drive a piston.

Forget about 3:1 it does not work. https://vimeo.com/manage/videos/886060121 This is the piston motion This is the path of the big end I tested 2:1 with 40 and 20 teeth gears The small dip at the peaks can be removed by changing the position of the Big End relative to the the axis of the...

Here we go...................

Perfect flatness is probably not desirable as the mechanism needs to move smoothly, so approximate is probably better. I will put together a static model and once you give my interpretation your approval I will animate it

Thanks I know this well. Unfortunately it involves a "engage-disengage" mechanism suitable only for very slow speeds

Very impressive. It is very much what I anticipated from the fusion of the two graphs i posted earlier. Please can you send a rough diagram showing me the arrangement of the gears I will then make a 3D model. After months of questions your solution is the only one that comes close. Many Thanks.

CAMs? .... I meet a lot on internet forums. X

I have many of these but they are a compromise. To get the ideal function a cam would have large flat sections and at any speed faster than snail speed the cam follower would bounce. Rounding of the flat sections means less time is spent at peak displacements. The two attached videos show the...

Thanks That is a solution, an electrical solution, not a "mechanical" solution and not the solution. I am sure there is some ancient mechanical solution out there.

Piston displacement as a function of time produces a sine wave. I need to modify the motion so the the time the piston spends at both the bottom of the stroke and the top of the stroke are extended. The motion curve would approximate a clipped audio wave. The attached image shows three motions...

No Idea what I am expected to disclose here????