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Haas spindle encoder
- Thread starter fraserjim
- Start date
- Replies 4
- Views 6,294
khogg
Plastic
- Joined
- Mar 21, 2008
- Location
- Kansas, USA
Does it orient to the SAME wrong place every time? Or does it orient to a DIFFERENT place every time?
sudtechcnc
Cast Iron
- Joined
- Mar 13, 2007
- Location
- chennai ,south india
Hello Fraserjim
Based on my experience with encoders , What you say (" but seems to do it in exact
steps")can happen if the following happens.
There is a parameter which tells the machine how many encoder revolutions equals one revolution of the spindle . If this got changed somehow then the error keeps cumulating and keep overshooting or undershooting the position . ( I know you checked the parameters ....)
Either that or the timer pulley was changed and the number of teeth didn't match the the earlier one.
Any teeth missing on the timer Belt ???
Just some wild hunches that I just put on paper in the hope that it will trigger some thought process elsewhere....
MJM
Based on my experience with encoders , What you say (" but seems to do it in exact
steps")can happen if the following happens.
There is a parameter which tells the machine how many encoder revolutions equals one revolution of the spindle . If this got changed somehow then the error keeps cumulating and keep overshooting or undershooting the position . ( I know you checked the parameters ....)
Either that or the timer pulley was changed and the number of teeth didn't match the the earlier one.
Any teeth missing on the timer Belt ???
Just some wild hunches that I just put on paper in the hope that it will trigger some thought process elsewhere....
MJM
GearBrains
Plastic
- Joined
- Oct 13, 2008
- Location
- North Carolina, USA
Check your contacts- Believe it or not we had the same problem- replaced contacts and it lives to machine another day.
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