Taper

Now they are the correct bore size and once again concentric to the spindle Adding a taper to your jaws

Andrew cuts the taper in the jaws With the taper cut and the work piece clamped at full pressure

The spindle sweep measurement will show that the spindle axis is perpendicular to the table surface

Place the work probe in the spindle

Attach the magnetic base to the spindle

The spindle warm up should now be complete

Attach the magnetic base to the spindle nose

During automatic recovery, the spindle drawbar unclamps and you will hear a blast of air coming from the spindle nose

Along the bottom, we have the spindle information box with the override values for spindle speed, feed rate, and rapid rate

You can eliminate the need to add a taper to the jaws

Regardless of which tool ends up in the spindle

Remember, spindle speed also affects outside diameter holding force

The spindle will turn at a maximum of 750rpm

It will taper each wall four thousandths of an inch (0.004 , 0.102 mm)

Remove any tool that's in the spindle using TOOL RELEASE

Remove the fasteners holding the spindle head bracket in place

Select program O02020 Spindle Warm up and press SELECT PROGRAM

Let's find out just how much taper should be added to the jaw bore

They go in opposite directions while they generate their spindle fibers.

And we'll keep the spindle speed below the recommended 900 rpm

With the machine geometry verified, start the Spindle Warm Up program

To compensate for this deflection, cutting a slight taper in the jaws may become necessary

After the taper is cut and the correct force is applied to the work piece

The inverse of this, is one thousandth of an inch (0.001 , 0.025mm) too little taper

If necessary, move the tailstock or 2nd spindle to the HOME position

To remove the spindle head bracket press Z , ZERO RETURN , and SlNGLE

Press CYCLE START and the spindle will begin turning at 500 rpm

Move the spindle head down to the middle of Z axis travel

Now, let's look at what too much, and too little taper look like using our setup

Along the bottom, we have the spindle information box with the override display

Place boxes filled with packing foam under the spindle and tool carousel pocket

Detach the Red Security Bracket between the Turret Face and the Spindle Bulkhead

If your program spindle speed does exceed 750rpm, the program will not run

Centrosomes are the things that are pushing back the that generate the spindle fibers.

The spindle sweep values are also affected by the precision of the leveling sequence

Errors because of twist or bow will cause errors in the spindle tram values

This will taper the face so the bore is larger diameter at the bottom than at the top

In either case, another pass can be made to either remove or add a slight amount of taper

For DS models, detach the Security Bracket connecting the Second Spindle to the Machine Base

Take special note of how fast the spindle will be rotating during actual part machining

Now Andrew uses a slow drying bluing compound to check if he needs to make another slight taper cut

Next, press ATC reverse repeatedly until the tool change arm has moved away from the spindle

If the primary tool has life remaining, it will call that tool to the spindle first

I decided that I did not want to stop the spindle so I wrote myself a note