On topic- rigid tapping ?

clay wrote in news:zc2Rj.2234$ snipped-for-privacy@news02.roc.ny:

Don't know what MX2 expects. Fanuc likes this: M29 = orient spindle G99 G84 Z5.51 R6.71 F4.1667

No, just need helical inerpolation, which say you have.

Clay:

A call to the manufacturer might help get the correct G-codes. Ask if they have any user manuals they could send you as well.

No, completely different process.

If you've never thread milled before, peruse the following sites. Cut air the first few times, then cut something really soft. Make sure your hole is deeper than the depth your thread mill will go when entering the hole.

Here's a code snippet for thread milling on a Fadal (1/2-13 .75 deep). ============================================================= % N1O1*THREAD MILL.NCF N4* OUTPUT IN ABSOLUTE INCHES N5* PARTS PROGRAMMED: 1 N7L0100 N8* SUB NUMBER: 1 N9G91 N10G1Z-1.771F2.4 N11G8 N12G41G0X-.0088Y-.0088D1 N13G1X.0058Y-.0006 N14G3X.003Y.1344Z.021I.003J.0672 N15Z.0769J-.125 N16Z.0769J-.125 N17Z.077J-.125 N18Z.0769J-.125 N19Z.0769J-.125 N20Z.0769J-.125 N21Z.077J-.125 N22Z.0769J-.125 N23Z.0769J-.125 N24Z.0769J-.125 N25Z.077J-.125 N26X-.0386Y-.0061Z.0038J-.125 N27X.0443Y-.1269Z.021I.0207J-.0639 N28G1X.0054Y.0023 N29G40G0X-.0111Y.0057 N30G90Z1. N31M17 N32M30 N33T1M6 N34* OPERATION 1: THREADING N35* WORKGROUP001 N36* TOOL 1: .25 THREAD MILL N37S400M3 N38G17G90G0X0.Y0.E1 N39Z0.H1M8 N40Z1. N41L0101 N42G0G90M5M9 N43G53Z0 N44X0Y0Z0E0H0 N45M30 % ===============================================================

Same thread milling op for a Haas. =============================================================== % O1(THREAD MILL.NCF) ( OUTPUT IN ABSOLUTE INCHES ) ( PARTS PROGRAMMED 1 ) N1 N1T1M6 ( OPERATION 1 THREADING ) ( WORKGROUP001 ) ( TOOL 1 .25 THREAD MILL ) N2G0G90G54G40G80G17 N3G0Z0 N4G0G90G54X0.Y0.S400M3 N5G43Z0.H1M8 N6Z1. N7M98P2 N8M9 N9G91G28Z0.Y0.M19 N10M5 N11M30

O2(THREAD MILL.NCF) ( SUB NUMBER 2 ) N1G91 N2G1Z-1.771F2.4 N3G41G0X-.0088Y-.0088D1 N4G1X.0058Y-.0006 N5G3X.003Y.1344Z.021I.003J.0672 N6Z.0769J-.125 N7Z.0769J-.125 N8Z.077J-.125 N9Z.0769J-.125 N10Z.0769J-.125 N11Z.0769J-.125 N12Z.077J-.125 N13Z.0769J-.125 N14Z.0769J-.125 N15Z.0769J-.125 N16Z.077J-.125 N17X-.0386Y-.0061Z.0038J-.125 N18X.0443Y-.1269Z.021I.0207J-.0639 N19G1X.0054Y.0023 N20G40G0X-.0111Y.0057 N21G90Z1. N22M99 % ===============================================================

Rigid tapping on a Fadal (1/2-13 .75 deep). =============================================================== % N1O1000*RIGID TAPPING FADAL.NCF N2* FORMAT 1 N3* 4/27/08 N4* OUTPUT IN ABSOLUTE INCHES N5* PARTS PROGRAMMED: 1 N6* FIRST TOOL NOT IN SPINDLE N7T1M6 N8* OPERATION 1: HOLES N9* WORKGROUP001 N10* TOOL 1: .5 RIGID TAP N11S400 N12G84.2 N13G17G90G0X0.Y0.E1 N14Z1.H1M8 N15G84.1G99X0.Y0.Z-.75R01.F400.Q.0769 N16G0G80Z1. N17G0G90M5M9 N18G53Z0 N19X0Y0Z0E0H0 N20M30 % ===============================================================

Rigid tapping on a Haas (1/2-13 .75 deep). =============================================================== % O1000(RIGID TAPPING FADAL.NCF) ( OUTPUT IN ABSOLUTE INCHES ) ( PARTS PROGRAMMED 1 ) N1 N1T1M6 ( OPERATION 1 HOLES ) ( WORKGROUP001 ) ( TOOL 1 .5 RIGID TAP ) N2G0G90G54G40G80G17 N3G0Z0 N4G0G90G54X0.Y0.S400M3 N5G43Z1.H1M8 N6G84G99X0.Y0.Z-.75R1.F30.77 N7G0G80Z1. N8M9 N9G91G28Z0.Y0.M19 N10M5 N11M30 % ===============================================================

There is often the option of using a tapping head.

One great thing about Yasnac is you can download manuals online for free.

You have a Yasnac MX2 control, book mark this page and/or download the manuals.

Funny reading the descriptions of the canned cycles though "Wood Pecker Feed"

Tom

M19 ?

Wes

M19 orients ( positions ) the spindle. M29 Synchronizes the spindle for rigid tapping.

Every Yasnac I have used uses the following

G93 G98 G84 Z-1.0 R.1 F.05 G80 G94

The G93 puts the machine in IPR (Inches Per Rev) mode G94 switches back to IPM (inches per minute)

A bit confusing because G93 puts a Fanuc into inverse time

So is IPR required for rigid tapping?

On the Yasnac a M35 is spindle orient. I haven't found a M code for rigid yet.

ca

I have been using tapping heads for years, just tired of dealing with their sometimes minor issues. Thought it was time to get current. I have some Bilz style T/C tap holders. Will they work for rigid tapping, or do you need rigid tap holders too?

What does the Q parameter do on the Fadal G84.1 for rigid tapping?

ca

Clay:

I use compression/tension holders about half the time. They can compensate for minor lead errors of the machine.

It's the pitch of the thread (1/2-13 tap, 1 divided by 13 =3D .

BTW If you're going to E-mail the same exact question as your post, it's easier if you send them both together so I can respond to both of them together.

-- BottleBob