3d editing acad 2004

[tomrowley101]

im drawing technical 3d models. ive filleted an edge and its wrong, i made the mistake too long ago to undo all the way back. how can i either put the fillet back to a straight edge or alter the radius of the fillet? cheers. tom rowley

[fuccaro]

Welcome!
Did I understand you correct? You used the Fillet command on a 3D solid, right?
If so, try this: SOLIDEDIT > FACE > DELETE and delete the curved surface resulted from the Fillet operation. After that Fillet it again with the correct radius.
It is no way to change the radius of an existing Fillet.