Originally Posted by
Cnczack
So this isnt specific to the control but every program I write (for a c axis lathe) program to do any sort of milling with g12.1 active before it starts it does this little dance i call it. it starts off away from the center of the part then begins to rotate the chuck (c axis) while moving the x axis, it goes towards the center of the spindle then back out before milling. What even is that and why would that happen? also in relation to program i do not program this, its not in the code but it is as soon as it hits the g12.1
on a related not we have a fanuc 21-iTB control, doosan vtl with c axis. while it does this dance it will spin so hard and fast it alarms out the spindle servo. ive tried messing with param. 5462 to slow it doesn but doesnt seem to help. any suggestions or ideas of this would be great.