RIGID TAPPING TUNE IN

[DMAXAM]

I just had VMC Tech from troy michigan come to my shop to replace my CPU and fix all lost perameters, well He did'nt no S**T
so my machine still is broke.
I just bought a thread gage for tuning my rigid tapping but don't know
where to find the info for tuning in the rigid tapping.
Does any one know what to do for this.
Thanks Dan

[Neal]

Dan--
Enter TA,7 to load a few selected service programs from the eproms. Select program number O6000 from memory. Read all the notes in the program before running.
Place the Thread standard into a 1" endmill holder and ensure that it is running true. 1. run the program.
2. press slide hold at ethier top or bottom of the stroke.
3. set .0001" finger style indicator inside the upper or lower square ground thread of the test piece and zero the indicator as appropriate
4. press auto
5. read the deflection. It should be less than .0005"
6. to adjust change the ramp and or gain parameter in SETP.(Not xyz ramp on page 3)
7. Retest
8. Repeat until .0005" or less is acheived.

If you can not reach the desired deflection then verify the ZERO balance of the Vector drive.

Hope this helps.

Neal

[DMAXAM]

Thank you for the reply Neal....
I have found the program and it jumps about a .001 at bottom
But I no nothing about the vector drive and how to adjust zero balance
could you xplain what needs to be done with that.
again thank you for your help..
Dan Maxam

[alex gitzel]

First you need to adjust the backlash in z axis that is most likely were your trouble is.if not the manual can be downloaded from fadal.com.

[alex gitzel]

also .001 bounce sould not break taps we usualy dont get calls about breaking taps untill they are out more than .010.some machines are hard to get any closer,the .0005 is on a new machine..001 is aceptable to me in the field on a used machine and have never had any calls about it not being ok in production.

[Neal]

Alex--
FYI---If you are trying to produce a GH3 class thread, a .001" deflection is right on the edge of pushing or pulling the helix. This results in the NO GO gauge going in.
Always go for the smaller the deflection the better and fix whatever is the root cause of the issue.

Neal

[Bwana Don]

Another option to VMC Technologies is;

Davis CNC
420 Industrial Parkway
Bowling Green, Ohio 43402
419-733-1333
Dan Davis

I'm in Oakland County and Dan is now my first call, he's really good. He's out of Ohio but services Michigan as well.

On a side note;
I am moving away from taps and going to thread mills. Couldn't be happier with the outcome. We do mostly stainless and titanium though.