how to clean bow ties in corridor, when i create corridor with templet on corner he create bow tie, i can't create curve on the corner, my corner should be 90, pls help solve my problem

Additional options:

1. Use small radius curves at any sharp corners with key stations at PC, Midpoint and PT, with parallel alignments at outside edges as point controls. This will pull outside edges to parallel alignments. along with their grading solutions.
2. Combine the above approach with using end condition exceptions to turn off grading at selected locations where the grading solution is not acceptable. Then, fill the gaps opened up with linear template grading.
3. Or use approach #1 with no grading (backbone only) and use linear template grading along the entire model.

Additional options:

1. Use small radius curves at any sharp corners with key stations at PC, Midpoint and PT, with parallel alignments at outside edges as point controls. This will pull outside edges to parallel alignments. along with their grading solutions.
2. Combine the above approach with using end condition exceptions to turn off grading at selected locations where the grading solution is not acceptable. Then, fill the gaps opened up with linear template grading.
3. Or use approach #1 with no grading (backbone only) and use linear template grading along the entire model.