MILLTRONICS VM17 G32 Z HEIGHT ALIGNMENT WITH CAROUSEL CHANGES
Help!
I purchased a used VM17 and when the machine turns on, after the homing sequence, I go to do a tool change and the spindle height to match the carousel is off. It can be from a 1/4" to 3/4" high or low.
I then have to go into F7 Parameters..... F4 Axis.... To "Tool Change" and adjust the Z# to move the spindle to the correct height. Anyone know of another setting in the machine I'm unaware of needing to be set to avoid this?
The indicators for the Z limit switch shows it works. The value for Z is different after every homing cycle.
In the words of Slim Pickens in Blazing Saddles, "I am deepressed..." Help!
Re: MILLTRONICS VM17 G32 Z HEIGHT ALIGNMENT WITH CAROUSEL CHANGES
One of two things is going on, either your z home switch is on the verge of not making, or the z drive has been changed and someone didn't widen the marker pulse width in the drive. Check the pitch of your z screw, and make marks at where it happens to find it's home on the column, see if the marks aren't a consistent distance apart. consistent such as the same as one revolution of the screw, or sometimes two or three.
Re: MILLTRONICS VM17 G32 Z HEIGHT ALIGNMENT WITH CAROUSEL CHANGES
Also, check the home switch itself. Make sure it is not sticky with built-up gunk or clogged with chips. When the switch re-opens will affect the location when the axis makes the last change-of-direction to look for the marker pulse on the encoder.A sticky switch may not release reliably.
During the Home Sequence, you want the last move the motor makes to be a half of a turn, as close as you can reasonably get, to give you the best chance of finding the marker at the same place in the travel.
Re: MILLTRONICS VM17 G32 Z HEIGHT ALIGNMENT WITH CAROUSEL CHANGES
I was having the same problem as well as homing issues turned out the drive was changed and marker pulse was not set correctly. I went through everything for over a year trying too figure it out.
