Has anyone ever tried to design something like this? We need a function in the sketching that allows us to define some parameters and then sweep the sketch from one point to the next in order to create a constant thickness. You get modern Finite Element Analysis (FEA) tools, experimental CFD, dedicated BIM, Geodata or CAM/.
As you can see in the picture we have tried doing a manual interpolation manual locking it to two virtual bearings so as to maintain the 12mm thickness when looking to the centre of the cam but even this is not creating a smooth enough profile and is locking the bearings. FreeCAD equips you with all the right tools for your needs. However when the cam rotates to the bottom section of its profile, the rounded profile no longer points to centre when looking perpendicular to the tangent of the cam and hence locks the two bearings as they need to point directly to the centre.
We are manufacturing a cam and with this design, the two bearing cam followers will be placed on either side of the 12mm thick profile and will always sit exactly above and in line with the centre rotation of the cam. We have a difficult design that we are struggling with at work at the moment.
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