Re: Z cutting deeper the more time goes by ???
Originally Posted by
Mr.Chips
Thanks
Didn’t see a “rapids” figure on that screen, maybe it’s called something else there?
Motor tuning is a mystery to me I just came up with these settings and didn’t change them for years, maybe they are not what they should
be.
Here are my motor tuning settings, IN PER MIN
VELOCITY .................70.02
ACCELERATION....... 5
G’s ..............................0.0129509
STEP PULSE .............5
DIR .............................5
Thanks
HH
Yes those are the 'rapids' ... basically the fastest speed the machine can run at They look reasonable, but as you say, after 10 years things may need an overhaul. Missing steps is the most likely cause of the problem, but what is causing it may not be so clear. Reducing the Velocity and Acceleration are just a quick fix to try to get a job out, but may be necessary if the stepper motor is 'struggling with old age' or it may be that there is simply a tight spot due to dirt that is the cause ...
Lester Caine - G8HFL
http://medw.co.uk - Home of electronics for the Model Engineer