Creating Surface Fillets

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To create a surface fillet

  1. Select the Creating Surface Fillets command icon button from the Surface toolbar or the Fillet (Surface menu) command.  

  2. Check the End Points box if you want to digitise the start and end points of the fillet. An end may be free digitised or it may be trimmed to a specific plane.

  3. Check the Trim Surfaces box if you want to trim the selected surfaces back to the fillet edge.

  4. Enter the start and end radii of the surface fillet in the Start Radius and End Radius boxes respectively. Variable radius fillets can be produced by entering different values in these fields. EdgeCAM interpolates between the two end radii.

  5. Alter the default interpolation Tolerance for the calculation of the fillet, if required. The higher the tolerance the more accurate, but also more lengthy, the calculations.

  6. Amend the default Search Grid Density, if required. This is the density of the search grid used when searching for the intersection. In most cases a density of 2 x 2 will suffice (Search Grid Density = 2). However, for surfaces which overlap in a number of places, or only overlap by a small amount, a higher search density may be required to find all possible solutions. The higher the density, the longer the command's calculations will take.

  1. Enter a name for the fillet, if required.

  2. Select Display to set the surface display parameters.

  3. Enter the required number of patches in the U and V directions into the U Patch and V Patch boxes respectively.

  4. Enter the required number of display points in the U and V directions into the U Display and V Display boxes respectively.

  5. Click OK to accept the parameters for the command.

  6. Enter a digitise in response to the 'Digitise primary surface' prompt.

An arrow shows the side of the surface which will be used to generate the fillet. If there is more than one possible side, you will be prompted to select it (see example).

  1. Enter a digitise in response to the ‘Digitise secondary surface(s)’ prompt.

  2. If you selected the End Points check box, enter a digitise in response to the ‘Digitise entity/position to define start of fillet’ prompt. Enter a digitise in response to the ‘Digitise entity/position to define end of fillet’ prompt.

  3. Perform a finish.

This example shows two fillets produced on a part: