G-ZERO Lathe

Pipe Threading - Reading your blueprint

• Blueprint reference point

Major and minor OD as the thread ends

PIPE        ret0 tpf.75 x2.2 z-3
THREAD   maj2.2 tpi8 min2.1 S300 z.2 zfin-3 num5 a60

Major and minor OD slightly past where the thread ends

PIPE        ret0 tpf.75 x2.2 z-3
THREAD   maj2.2 tpi8 min2.1 S300 z.2 zfin-3.2 num5 a60

Major and minor OD at start point

PIPE        ret0 tpf.75 x1.7 z0
THREAD   maj1.7 tpi8 min1.6 S300 z.2 zfin-3 num5 a60

Major and minor OD inside the thread: Incremental values

PIPE        ret0 tpf.75 x1.85 z-1.5
THREAD   maj.05 tpi8 min-.05 S300 z.2 zfin-3 num5 a60