Hi Terry, I  just finished a job using "Equal Scallop" that allows you to use avoidance. So just to see i went back and changed it to "Scallop" and avoidance is grayed out. Don't know why.

try changing the post to this.

#Rotary axis travel limits, always in terms of normal angle output
#Set the absolute angles for axis travel on primary
pri_limlo$   : -9999
pri_limhi$   : 9999
#Set intermediate angle, in limits, for post to reposition machine
pri_intlo$   : -9999
pri_inthi$   : 9999

#Set the absolute angles for axis travel on secondary
sec_limlo$   : -65
sec_limhi$   : 110
#Set intermediate angle, in limits, for post to reposition machine
sec_intlo$   : -65
sec_inthi$   : 110

I tried it and it output the "B" axis as a B90.

HTH

Ok, that's what I thought you meant.

Thanks!

I re-set up the part on a 5 degree angle and the toolpath looks great.

 

So did you make a fixture that tilted the part 5 degrees, or set a workoffset 5 degrees from zero?

I had the same thing happen to me. I ended up spliting the model in half and cutting it in sections. I programmed a part a couple monthes before using a swarf cut and it ran ok. Never did figure out why one worked and the other one didn't.

Johnaka

Yes. We also have a stevens plate on it and we shimed it up .121, and still had to put .121 in the post. Now the stevens plate measures 1.250 so when I place my solid in mastercam the botttom of the part is at 1.250 plus whatever fixturing i might be using.

This is what I have in my post. As you can see the only shift is in the "Z" axis. Never did understand why Haas couldn't put their "A" axis on center of rotation.

#Axis shift
shft_misc_r : 0	 #Read the axis shifts from the misc. reals
#Part programmed where machine zero location is WCS origin-
#Applied to spindle direction, independent of RA
#Table/Table -
#Offset of tables to secondary axis relative to machine base.
#Tilt Head/Table - Head/Head -
#Part programmed at machine zero location-
#Offset in head based on secondary axis relative to machine base.
#Normally use the tool length for the offset in the tool direction
saxisx	 : 0	 #The axis offset direction?
saxisy	 : 0	 #The axis offset direction?
saxisz	 : 0	 #The axis offset direction?
r_intersect : 0	 #Rotary axis intersect on their center of rotations
				 #Determines if the zero point shifts relative to zero
				 #or rotation with axis offset.
#Nutating axis shift, used when calculations are based on mtype 3 or greater
#'top_map' and toolplane tool paths use the axis shifts above, 5 axis use these
n_saxisx	 : 0	 #The axis offset direction?
n_saxisy	 : 0	 #The axis offset direction?
[color=#ff0000]n_saxisz	 :.121    #The axis offset direction?[/color]
n_r_intrsct  : 0	 #Rotary axis intersection with nutating (normally zero)

Do you have your Working coordinate system set to top? Then Tool plane & Comp/construction plane set to your intended rotations?

Started in Sept 1978 learning to setup & run Brown & Sharpe automatic screw machines. In 1981 I started running a Mori Seiki SL1 lathe. Before long I was setting up, running and doing a little pencil programming on the Mori’s, Citizen’s And Okuma’s. In 1984 -1990 I move to the hand mill department learning all I could to become a mill machinist and possible tool maker. 1990-1998 I got into CNC milling, setting up & running Mazak’s, Hurco’s & twin pallet Monarch’s with 4^th axis. In 1999 my boss asked if I wanted to learn to program CNC mills with Smartcam instead of the pencil I had been using, I said sure why not. In 2007 we got our seat of Mastercam mainly for the new 5^th axis the company bought. Been using it ever since. Still use Smartcam for Strippit jobs & some turning.

_{Under Stock Setup tab, click cylindrical in the shape section then click for your axis direction. Then I always use the bounding box feature to set my stock.}

_HTH

Thank you for the invite and for the help. I already tried the 0 in the WCS and wend I post it I get a warning (0 – Work offset number used in more than 1 view) so I did not think it was right because I do not have any trouble with 5 axis.

It's just informing you that you chosen to have one offset for multiple views, or rotations if you will. That's OK, just click ok and your post should code out with only one G54 for all rotations.

HTH

And welcome to the forum

You should be able to change them in the WCS view manager. Change the -1's to 0's for each WCS

Make sure your chain is running clockwise around the boss and your cut parameters compensation type is set to left.

HTH

If programming using both control cutter comp. and wear comp. in the same program, would a typical machine tool be able to differentiate between the two comps. using the same offset number?

No. You will need to add another 'D' offset call for wear.

But I guess my question would be why? Stick with control comp OR wear comp to avoid confusion and a possible crash.

JM2C

HTH

Would it be easier to copy the surfaces that you need to different level?

HTH

flattensurf.dll in c-hooks dir

Works better then ever

Maybe this?

Hi everybody,

We just got a Tongtai Turning Center, model TB25Y-ATC. It seems the guys are having trouble getting the coolant to work with the live horizontal tooling. From what I understand the only coolant coming out when the tool is in position, is from behind the holder. There are no external coolant lines to feed coolant to the tool, so there must be something they are missing.

Any and all help is always appreciated.

Thanks,

I have a 2007 Haas VF4SS and I'm having a problem with the arc moves on the machine. The tool in a roughing cut will start to squeal going from Y neg to X neg and from a y pos to x pos arc moves. I've had our local repair guys come out and they said it was a bad tool holder and that seemed to fix my problem for a while. Now I'm trying to rough with a 1.25" 3 flute, Sandvik inserted cutter on a Capto holder and still getting the same squealing. I cannot figure it out. I'm only taking a 1" depth of cut and a 10% step over on dynamic core mill and 2500 rpm and .005 fpt. I'm starting to think this particular machine cannot take that heavy of cut and I should try the same tool path on the new machine I'm getting and see if that makes any difference.

Maybe you should have your spindle taper checked. We have a 10 year old Kitamura 4x ,( CT 40 ), that has repeat heavy cut jobs on it and we noticed a difference in tool cutting sound and bad surface finishes. After speaking to the operators we found out there had been some unreported crashes. Turned out the spindle taper had been damaged. Had a company come in and grind it back true. Finishes are back and it sounds good. Had them check all of our Haas's, 3 of 9 needed ground. Made a difference. Might be worth a check as you said, "local repair guys come out and they said it was a bad tool holder" .

HTH

OK,

File>File Merge/Pattern>Open target folder>click file>Green check mark.

And your done.

HTH

Is peck taping a Mastercam option or a post setting?

 

Thanks

 

John

John,

I don't know about the option but I would think the post could be altered for it. Like I posted before I usually hand edit in Cimco editor. I guess it depends how many you have to tap as to how much work it would be to copy and paste the G84 line. Sorry but I don't know what to edit to make it happen in the post setting.

They did not offer me a cold form tap, not sure if they make them?

Look to the bottom of the Spiralock chart

Pg. 3 & 4

Hi,

 

I have a bunch of 4-40 and 6-32 blind holes to tap in 17-7ss. They are drilled 0.420" deep and threaded 0.25" deep.

 

Spiralock sent me some spiral fluted taps and the first one broke on the first hole. I drilled the hole with a HSS drill close to the largest recommend minor diameter and I used CoolTool II for tapping fluid. They are sending me some Spiral Pointed taps now.

 

Can somebody please advise on how to tap these parts? Do I need to Peck tap (never done that)?

 

Thanks in advance.

 

John

John,

I prefer to use form taps when ever possible especially on blind holds. Yea they are harder to elox out if or when they break but they seem to be stronger than cut taps.

I've have some jobs that are pecked tap in a VMC. Usually I just post the cycle out than hand edit the code, copying the g84 line but reducing the depth in the first line by half. On some materials pecking more than twice will lead to a o/s thread.

HTH

Your welcome

Don't know how to make it work with mach def. So I just change my post to limit the A axis to my preference. Not the correct way, but it works for me.

As always BACK UP BEFORE CHANGING.

See below in bold to change.

HTH,

Brian

#Axis shift

shft_misc_r : 0 #Read the axis shifts from the misc. reals

#Part programmed where machine zero location is WCS origin-

#Applied to spindle direction, independent of RA

#Table/Table -

#Offset of tables to secondary axis relative to machine base.

#Tilt Head/Table - Head/Head -

#Part programmed at machine zero location-

#Offset in head based on secondary axis relative to machine base.

#Normally use the tool length for the offset in the tool direction

saxisx : 0 #The axis offset direction?

saxisy : 0 #The axis offset direction?

saxisz : 0 #.1212 #The axis offset direction?

#Rotary axis travel limits, always in terms of normal angle output

#Set the absolute angles for axis travel on primary

pri_limlo$ : -185

pri_limhi$ : 185

#Set intermediate angle, in limits, for post to reposition machine

pri_intlo$ : -185

pri_inthi$ : 185

#Set the absolute angles for axis travel on secondary

sec_limlo$ : -30

sec_limhi$ : 120

#Set intermediate angle, in limits, for post to reposition machine

sec_intlo$ : -30

sec_inthi$ : 120