# Maximum corner distance, minimum residual block length

To avoid any "degeneration” of the polynomial, the following limitations apply additionally:

- The corner distance may assume a maximum of 50% of the original block length. If the corner distance selected is greater, the distance of the pre-block and post-block is limited accordingly. If the corner distance at block start and block end is 50% of the original block length, the block is skipped completely.
- When parameterising the contouring function, the minimum residual block length can be set between 0% and 100%. This corresponds to a variable maximum corner distance from 50% to 0%. At every program start, the minimal residual block length is first set to 0% (block can be completely contoured). If the minimum residual block length is specified as 10%, for example, the corner distances of this block can be maximum (100% - 10%) / 2 = 45% of the original block length.
- In circular blocks the maximum corner distance (distance travelled on circle) is limited so that the angle covered does not exceed 90°.