Fitting an encoder on a Tormach 1100

No, the code above should just work

But try tapping air with an air tap first

What is a sensible length of DB25 cable between the 5i25 P2 and the 7i78s I have a short 26 pin IDC to DB25 1.5mtr !!

Thanks

if you need a longer cable, its better to use a:

Short flat cable --> PC bracket with DB25 --> IEEE1284 parallel cable --> 7I78

the "Short flat cable --> PC bracket with DB25" is a standard thing = DB25F-IDC26 CABLE you can get from Mesa

(or elsewhere, its basically the second parallel port expansion hardware for a dual parallel port card)

Thanks Peter . I did not know if it was better to have a longer PP cable or longer cable going to the encoder on the spindle of the mill.

Probably better to have a longer encoder cable (especially if the signals are differential)
with TTL encoders its more of a toss-up

Update: With this code
%
G21
G90 (set absolute mode)
G0 X0 Y0 Z2
S100 M3
G33.1 Z-20
M2
%
I have now successfully tapped some M8 holes:) But the code does not release at the end of it. When I try a MDI command its telling me that it requires a " K value with g33.1 " I have tried this without the % as well

Am I not terminating the program correctly? the stop button and escape does not release and terminate the code.
This might be a PP thing