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If your controller can be programmed using polar coordinates you can write a macro to cut tapers. I run a bar with a siemen's control and have programs to cut tapered threads, tapered bores, cone...

I run a G&L bar with a siemen's control so I'm not sure it would be the same. I haven't used it too much but have a couple of times. There is a GEOAX command which will make W=Z and Z=Z_1. This will...

At the end of the program just add R1=R1+1 this should do what you need. Every time the program finishes it will add 1 to R1, you can go to the R parameters screen to check it. Hope this helps.

Carefull on your depth of cut. I do this on a horizontal boring bar quite a bit and only take .002" each stroke, it can be very hard on the thrust bearing on the back of the spindle. Also it's a good...

I've never used mach 3 so can't help you there but it's pretty easy to do it if you just write a program manually in g-code.

I've only done this on a cnc boring bar so not sure this will help at all. I do it using a sub which needs to be written incrementally so you can move to hole location and call the sub. For me the...

I run a siemens 840d don't know if it will be the same but if you program G4 S5 the machine will dwell for 5 revolutions of the spindle or if you program G4 F5 it will dwell for 5 seconds. Hope this...

dcoupar's program looks right. I run a 840d on a boring bar and you just need to replace the R with CR and it should run.

i think what is messing you up is that you have to remember that G91 is active so all your coordinates are incremental. so you move to y-10 then do a 180 degree arc to y22 which is incremental so...

looks like a nice little program. the i and j in line 60 are the way they are because it looks like the program will move down to the minor radius as programmed in R6 then ramp in to the major radius...

if you start at zero zero x and y this should work

G3 X0.25 Y.25 I0 J0.25 F2
G2 X.5 Y0.5 I0.25 J0 F2
G2 X0.75 Y.25 I0 J-0.25 F2
G3 X1 Y0 I0.25 J0 F2

hope this helps.

I will try to look in my manuals today for some more info. Another way to do this is just put that program in the subprogram file and you can call it from any main or subprogram by simply entering...

what kind of machining are you trying to do with the canned cycles? i'm not too familiar with the lathe cycles but i have looked at them and they are similiar to the milling ones.

the first few lines of the program are loading the tool and getting the offset designated.
D1 TURNS ON TOOL LENGTH
G54 OFFSET I AM USING
G90 DESIGNATES ABSOLUTE COORDINATES
G95 IS INCHES PER REV....

here is a simple program used on a boring bar.

T5 M6 ;TOOL CHANGE
T6 ; PRE SELECT TOOL
D1 G54 G90 G95 S500 F.012 M3
TRANS Z-10 W10
GO Z0
X0 Y0 W5 ;position cutter in...

Thanks for the program should come in handy. Does anyone know of any similair macros for letters.

You can use the standard cycles to load the actual dimension straight into one of the R parameters. all the probing i do i use the cycle for "only measurement". To do this i turn the chbits off by...

Hey BWay I use the standard siemens probing cycles but furtunately for me there are alot more cycles for probing on the boring bar than the vtc. I use the cycles in my programs alot. For example one...

Hey BWay i am new to this furum but hope i can help. I run a Giddings and lewis HBM PT1500 and do alot of probing and checking parts with the probe in many different ways. I don't know if i can help...