(superseeded) Linuxcnc on Linux Mint 19.3 quick and easy installation

forum.linuxcnc.org/49-basic-configuratio...rallel-port-bob-g540

I was in that setup but under board name there is no 7i96 listed

is linuxcnc running on linux mint 19.1 as a simulation or controller?

You can control a machine with Mint & the RT_PREEMPT Kernel

unfortunately this only works on 64 bit pc.

Yep.
Tho there is nothing to stop you from installing a 32 bit version of Mint, building a kernel & building Linuxcnc yourself.
In all seriousness if you are using a parallel port and a 32 bit machine the Wheezy ISO is your best choice. Yeah yeah Wheezy is end of life, but that wont stop it from running.