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As the error message indicates:

Is invalid syntax for python 3. Possibly you imported the 'nc_files' folder from an older version of linuxcnc?

You might want to replace your "nc_files/remap_lib" folder with the one available here:

github.com/LinuxCNC/linuxcnc/tree/2.9/nc_files/remap_lib

In the zip file you posted the only "extra" unneeded files I see are all of ones ending in ".halscope". You can safely delete all of those without causing any harm.

As to your issues with booting to live media or reinstalling Linuxcnc. You probably need to turn off those protections in the computer bios, and to do that may require the password to enter the bios editor. If you've forgotten the password, it might be possible to reset this by removing the cmos battery, to return the bios to its default settings.

I've also found the included file browsing/file open ap within Axis to be very limiting to use. The work around we often used was to use the file browser of your choice on your Linux desktop to find the g-code file you want to run, then with a right mouse click use the "axis-remote" command to open to open the g-code file in Axis directly from the file browser. This was especially helpful when wanting to run files saved in network directories that you could not easily find or access using file open in Linuxcnc.

I don't know if this works using other Linuxcnc GUIs or if any of the other GUIs offer an equivalent command to axis-remote that can be used to open a g-code file from another file browser.

I got bad news from the spindle repair shop. They gave me an estimated quote of 8-10k€,,, thats a little bit to much. I think I need do it on my own. 

Need to watch some Robin Renzetti videos to get in the mood to touch that thing

My plan is to replace the bearings on my own and than search for a service provider, that can regrind the taper on the machine. 

Thanks a lot for your replies.

The stahlwerk-plasmacutters look good.
 
I already have a THCAD10 that I use for my hypertherm powermax 1000g3, but the cut quality on the hyptherm is not the best because there is a thermal dynamics-torch mounted on the machine and it doesn't cut without an angle at 10mm steel (2mm bevel to the other side). I already changed most of the parts exept the starter cartrigde, and if I can't get it to work properly I need to buy another plasma-machine. 

So I could change the Plasmacutter and still use the THCAD-10 if I add series resistors.
Maybe you can explain which exact resistor(s) I need and how exactly the resistors should be added to the plasma-cutter ? I
Somewhere I read that the THCAD should not be placed inside the controller-box ? Is that right ? So where should I put the THCAD 10 and the resistors ? 

Thanks

Ich hatte das gleiche Problem und mit sudo dpkg -P raspi-firmware gelöst

Also just realised that when I start with the remap line in the ini file commented out the error still occurs, without the 2 lines after "Python plugin configure() failed, status = -11"

ich danke dir für die bestätigung das mit dem smart serial versteh ich zwar noch nicht wenn man´s aber nur wie du schreibst nur einstellen braucht wird das schon laufen irgendwie

Ein schönes Projekt ist es auf jedenfall und danke für dein angebot mich an dich wenden zu dürfen

  Went to startup linuxcnc today and am getting the following error

Found file(REL): ./custom.hal
initialize: module '/home/peter/cnc/taigmesa/python/toplevel.py' init failed:
Traceback (most recent call last):

File "/home/peter/cnc/taigmesa/python/toplevel.py", line 19, in <module>
import remap

File "python/remap.py", line 19, in <module>
from stdglue import *

File "python/stdglue.py", line 59

print "change_prolog: Toolchanger soft fault %d" % int(self.params[5601])

^

SyntaxError: invalid syntax

Interp ctor: can't instantiate Python plugin
initialize: module '/home/peter/cnc/taigmesa/python/toplevel.py' init failed:
Traceback (most recent call last):

File "/home/peter/cnc/taigmesa/python/toplevel.py", line 19, in <module>
import remap

File "python/remap.py", line 19, in <module>
from stdglue import *

File "python/stdglue.py", line 59

print "change_prolog: Toolchanger soft fault %d" % int(self.params[5601])

^

SyntaxError: invalid syntax

Python plugin configure() failed, status = -11
Python plugin required for prolog=, but not available: 78:REMAP = M6 modalgroup=6 prolog=change_prolog ngc=change epilog=change_epilog
Python plugin required for epilog=, but not available: 78:REMAP = M6 modalgroup=6 prolog=change_prolog ngc=change epilog=change_epilog

emc/task/emctaskmain.cc 3084: can't initialize interpreter 

If I comment out the
REMAP=M6 modalgroup=6 prolog=change_prolog ngc=change epilog=change_epilog
from my ini file all is well, but obviously no tool change.
With it in it eventually starts up after the error above but is unusable.

Chacking against git history show no significant changes that I can see.

Linuxcnc version 2.9.3
UI is Gmoccapy
Python version is 3.7.3

Unsure where to start.

I looked at the official site for this pendant and the hal file is similar to yours. 
Try this: I just flipped vc-p1as.jog.0.minus and vc-p1as.jog.0.plus   
net jog.0.cont-plus       vc-p1as.jog.0.minus           halui.axis.x.plus         halui.joint.0.plus 
net jog.0.cont-minus     vc-p1as.jog.0.plus              halui.axis.x.minus     halui.joint.0.minus
I this does not work perhaps you could double check the pendant configuration for errors.

I found how to "enable" the parport without reboot with
echo 1 | sudo tee /sys/bus/pci/devices/0000:03:00.0/enable
which removes the "disabled" from lspci -v

but it doesn't cause the stepper to work again unless I reboot. Also, i was jogging before at low speed. I tried with higher speeds and it still has alot of that "pausing" going on even though latency is now like 4000. Plus, on starting my configuration it still has "error : unexpected realtime delay on task 1... run the latency test..."

Tried several times , Bios is correct settings , will not boot with the ISO . The machine will run with the other machines control plugged in . I posted a zip of the backup files. But there seems to be alot of extra files.

It seems to work better while it works, but it shortly stops and the parallel port becomes disabled, and I have to reboot. The pausing problem stopped and the latency is much better, but it gets disabled pretty quickly

avalon 841

www.linuxcnc.org/iso/ubuntu-10.04-linuxcnc3-i386.iso
Download, burn to USB, boot from that USB in LIVE mode, open file browser, insert the USB with the backup files, find the .ini file, right click on it and choose "open with", type emc2 or linuxcnc below, hit enter.
Does the machine run properly?