i have an 80's Atala bike. i replaced many parts and got to the bottom bracket last (did things out of order). It used to have a cotter pin system and it was worn out. I removed the cranks and the non-drive side lockring and even the spindle, bearings, etc. The only part left to remove is the drive-side locking cup. I know that it's an Italian style threading (right handed) on both sides. I've tried almost everything to remove that cup. After being unsuccessful trying to remove it, I soaked it in liquid wrench for two days and tried again... Nothing. I drilled slots into the cup to created a way to put a flat headed tool in and improvised a large torque wrench. Again nothing. I am out of ideas. What else can i do?