L9601 & L9701 Code Problem

[donl517]

I keep getting an "Improper use of canned subroutine 96" error when trying to run this program. I'm looking at the code in the manual and nothing jumps out at me; any thoughts?

Thanks,
Don

%
N1O100
N2M6T6
N3M3S3500
N4G0H6Z1.M8D6G43
N5(RECTANGULAR POCKET CW
N6G0X4.Y-1.75G54G90
N7Z0.1
N8G1F5.Z-0.398
N9L9601R+40.R1+0.25R2+8.R3+3.5
N10G0Z1.
N10.1G0Z0H0
N11M30
%

[donl517]

I did this program in the page editor with the function tool. The machine control generated the whole program and I get the same error.

Thanks,
Don

%
�N1O101
N2(TOOL CALL
N3G0G17G40G80G90M5M9
N4T6M6
N5X4.Y-1.75E1S3500M3
N6Z1.D6H6M8
N7G40
N8(RECTANGULAR POCKET CCW
N9G0X4.Y-1.75
N10Z0.1
N11G1F5.Z-0.398
N12L9601R+40.R1+0.25R2+8.R3+3.5
N13G0Z0.1
N14(ENDING PROGRAM
N15G0G80G90M5M9
N16Z0G53
N17X0Y0Z0E0H0
N18M30
%

[donl517]

OK the book says that:

"R1 represents the radius on the corner of the tool."


Note:

This can be used to regulate the step over distance. The larger this
number, the less the amount of step over.


That is not true; regarding the R1, it does control the stepover but it does not represent the radius of the tool. If I set this value to .25 the machine gives me the fault. If I set it to 0 the program runs and the tool steps over .215 per pass. If I change it to 0.01 it steps over the same amount. If I set it to .249 it steps over a negligible amount. Can some one tell me what R1 really represents?


Just a thought are they referencing a bull nose cutter?

Thanks,
Don

[billystein]

make sure you enter the diameter in d6. i put d6 in the l9601 line.

[donl517]

Originally Posted by billystein make sure you enter the diameter in d6. i put d6 in the l9601 line.

Yep I've got the diameter in the tool table. I'll try putting the D6 in that line and see what happens.

I get the same result as my latest post on this.

Thanks,
Don

[billystein]

d6 must be larger than .500.

[billystein]

it is kind of like a pocket routine. if you put like .005 for the radius it leaves islands but it makes less passes. if you put .24 on a 1/2 em then it takes very small stepovers but leaves no islands. start with small value and keep adding untill you get rid of islands.

[donl517]

Originally Posted by billystein d6 must be larger than .500.

I'm not sure what you are getting at. The tool is .500.

I see that the R1 value must be less than the radius of the tool in order to work. I just can't figure out what R1 is supposed to represent. I'll see if I can bounce this off Fadal support and get some clarification.

Thanks,
Don

[billystein]

it is supposed to represent the corner radius of the end mill.

[Neal]

The problem is not with the code itself. The issue is the diameter in the tool table for D6. With an R1+.25 the tool diameter MUST be a minimum of .501". Any tool larger than that will also work as long as it fits the pocket.

Neal

[warstoned]

On the Fadal Mill,

When you are using the L9601,L9801 Fixed Cycles R1 is used to control the step over distance.

You may use the following formula to get your value for R1:
---------------------------------------------------------
R1 = [(Diameter of tool - (desired step over)) / 2]

desired step over = [Diameter of the tool * stepover %]
---------------------------------------------------------
For example if i have a .25" flat endmill and i want a 37% stepover then

R1 = [(.25- (.37*.25)) / 2 ] = [(.25-.0925) / 2] = 0.07875

or If I want a 50% stepover then

R1 = [(.25-(.50*.25)) / 2] = [(.25-.125) / 2] = .0625


Hope this helps.

-Daniel E. Garcia

dannygda@cox.net


(San Diego City College Machine Technology Student)