Boxford 125 lathe Tool Changer Comp FERROR (SOLVED)

I have started a new post to keep all the is one place.
I started looking at this:- forum.linuxcnc.org/38-general-linuxcnc-q...anger-setup?start=20

That is using this:- wiki.linuxcnc.org/cgi-bin/wiki.pl?Contri...oolchanger_component

Now this seems an old comp. I have tried to follow all the instructions from the readme in the boxford.tar.gz.

The Lathe does not have any sensors on the ATC it is an 8 position changer that only goes in one direction but then reverses a small amount to lock it. ... According to the above the segments are not equal at 45' they vary slightly between odd and equal numbers. ie. All odds are the same and all equals are the same.
.
Q1. Will the Carousel comp be better to work with this. linuxcnc.org/docs/2.8/html/man/man9/carousel.9.html
.
I have not used an A axis before so might not have set it up correctly. I have set is up as angular degrees but am getting following errors. no matter what I change in the ini file. I have tried changing MAX_VELOCITY - MAX_ACCELERATION - STEPGEN_MAXACCEL - FERROR - SCALE etc. the error always seems to be 1.3mm

I don't see a way to set it up with stepconf foa a lathe with A axis
.
I have attached the complete config in the rar file and the hal and ini files as well.

I have had to change quite a bit of the original files because they were from 2.4 era and pins have changed.

I am now using 2.7.14 but also have tried 2.8.

Bump. No replies

This suggests that the tool changer component has large steps in its position output.
You might just set both ferror limits to 10 or so and let the stepgens acceleration
limit smooth out the motion...

PCW wrote: This suggests that the tool changer component has large steps in its position output.
You might just set both ferror limits to 10 or so and let the stepgens acceleration
limit smooth out the motion...

Ok I have changed
[AXIS_A]

TYPE = ANGULAR
#HOME = 0.0
MAX_VELOCITY = 0.005
MAX_ACCELERATION = 5
STEPGEN_MAXACCEL = 200
SCALE = 160
FERROR = 1 To 10 and 20
MIN_FERROR = 0.25 To 10 and 20
MIN_LIMIT = -99999
MAX_LIMIT = 99999
#HOME_OFFSET = 0.0

Same result, it immediately errors and moves the same amount 1.001. Not sure if this is in degrees or linear

Thanks for the help.

Edit; I have tried setting ferror to 50 as well.

A ferror?
What happens if you set the ferrors to 1000?

PCW wrote: A ferror?
What happens if you set the ferrors to 1000?

No change using a 1000.
Where would I find ferror in hal config? as I don't see it anywhere . only in the ini file

Edit: In the hal file I have stepgens 0, then 2,3 so 1 is missing. configs are in the first post. Could it be that is is not reading the correct part of the hal