Tool Length Offset

[masterfabr]

I am using AlibreCAM to post. I have the tool length offset set in the machine controller,Fadal 88HS Format 2. I have adjusted register number to correspond to tool number in AC. I have Z offset set to zero in create/edit tool dialog for both tools,saved edits to tool generated & posted the tool path with AC. Tool 7 is following tool length offset but tool 4 plunges into part the distance of the tool offset it appears. Here is the post for the 2 ops.It appears correct to me. I think it is a controller issue. What could I be doing wrong?


%
N1O1
N2G40G49G80
N3T7M6
N4G0G90E1X0.001Y0.S534M3
N5G43Z0.25H7M8
N6G0Z0.25
N7M08
N8M46
N9G81G99R+0.1Z-0.3F4.0
N10Y1.532
N11X-1.327Y-0.766
N12X1.328
N13G80Z0.1
N14G0Z0.25
N15M9
N16M5
N17G91G28Z0
N18G40G49G80



N19T4M6
N20G90E1X0.001Y1.532S798M3
N21G43Z0.25H4M8
N22G0Z0.25
N23M08
N24M46
N25G83G99R+0.1Z-0.625F6.0P0.01Q0.125
N26X-1.327Y-0.766
N27X1.328
N28G80Z0.1
N29G0Z0.25
N30M9
N31M5
N32G91G28Z0
N33G40G49G80


Thanks for the help.

[Delw]

I forgot what m46 does but you dont have a cancle for it ie m47?
I dont know if its needed or not. and your using g99 instead of g98 in a peck drill cycle


heres a more simple code for what you have doing the same thing in My opinion this is how all my code is done, you dont need all the BS in all the lines, keep it simple ovbiously change the dims for your part

N527 M6 T17 ( 0.375 DIA. SPOT DRILL )
N528 G0 G17 G40 G80 G90 E11
N529 M3 M8 S8500
N530 X0.001 Y1.532
N531G8
N532 Z0.1 H17
N533 G98 G82 Z-0.15 R+0.1 F15.0
N534X-1.327Y-0.766
N535 X1.328
N538 G80 G40 M5 M9
N539G9
N540G49 Z0.0
N541M01

N542 M6 T18 ( 0.236 DIA. TWIST DRILL )
N543 G0 G17 G40 G80 G90 E11
N544 M3 M8 S8500
N545 X0.001 Y1.532
N546G8
N547 Z0.1 H18
N548 G98 G83 Z-0.75 R+0.1 Q0.1 F15.0
N534X-1.327Y-0.766
N535 X1.328
N553 G80 G40 M5 M9
N554G9
N555G49 Z0.0
N556M01


Delw

[DareBee]

Del

The extra code is created by the cam software.

Fabr

If your other tools are cutting at proper zero, I would be inclined to clear the tool 7 data from the MCS tool table (including any A/B values that may be there) and input it again freshly.

[masterfabr]

The post process generator in AlibreCAM is posting the code. I see little reason to have a CAM program if I have to rewrite the post every time.

M46 is positive approach in a Fadal according to the manual .M 47 would cancel it.G99 is return to RO plane after final Z in my Fadal manual. G98 is return to initial plane after final Z in the manual. I don't understand where that is of any help.

Is there ANYONe using AlibreCAM with a fadal successfully? Without having to rewrite the post?

[masterfabr]

DareBee,it appears that all tool after T4(first tool) are not picking up on the tool offsets,not just T7. I'll recheck that today.

[Delw]

Maybe a zero memory is in order? then reset all offsets and fixture offsets.


I realize the software is writing the code for the machne, so is mine( not the same software). you should be able to edit your post file and save it, then if should always wrote the correct code everytime.

Just for the heck of it delete all the stuff in your program thats is not needed or try my code but change your position. if that works then you know its stuff that your post is posting , if it doesnt than I would do a zero memory as its a machine problem.

[masterfabr]

Maybe a zero memory is in order? then reset all offsets and fixture offsets.


I realize the software is writing the code for the machne, so is mine( not the same software). you should be able to edit your post file and save it, then if should always wrote the correct code everytime.

Just for the heck of it delete all the stuff in your program thats is not needed or try my code but change your position. if that works then you know its stuff that your post is posting , if it doesnt than I would do a zero memory as its a machine problem.

Ya,I was beginning to think the same thing.

Problem is that I don't know what to do to correct it before I can save it.
I'll do so.

[masterfabr]

Did the memory clear thing.Re-entered tool length offsets. Nothing changed. I've been carefully trying to figure out what is wrong in the post. Help me out please guys with the post as it is. I realize that as I get better at this I can edit/write a lot of it differently but I gotta start somewhere and this is what I have to work with. If you can bear with me I think I see the issue with the post but have no Idea how to correct the ACAM editor so it will post right. Another person has stated that he is only able to get his post "correct" is using the ACAM Fadal Format2.spm post generator so I have decided to concentrate only on it for now.
Here's the post with the same 2 ops.

%
N1O1(Fadal_Format2.spm)
N2G40G49G80
N3(Center Drill)
N4T7M6
N5G0G90E3X0.001Y0.S534M3
N6G43Z0.25H7
N7M8
N8G0Z0.25
N9M46
N10G81G99R+0.1Z-0.3F4.0
N11Y1.532
N12X-1.327Y-0.766
N13X1.328
N14G80Z0.1
N15G0Z0.25
N16M9
N17T4M6
N18G90E3X0.001Y1.532S798M3
N19G43H4
N20M8
N21G0Z0.25
N22M46
N23G83G99R+0.1Z-0.625F6.0P0.0100Q0.125
N24X-1.327Y-0.766
N25X1.328
N26G80Z0.1
N27G0Z0.25
N28M9

Doesn't N15 put the tool at the clearance plane without allowing for tool length offset?Then after the tool change it returns to z.025 before the Y move since G00 is modal?
Seems to me that this Y move ,just after the tool change, is occurring before these moves that bring the tool up to clearance plane Z with the tool offset H4 included.
Seems to me the moves must be reversed before this G83 cycle without plunging the tool into the part before the Y m ove and also before it's even drilled.

[Delw]

Not trying to be a dick, but see if the machine will work with simple code before you start playing with everything
did you try running the program I made above? taking out all the bs thats in your?

if you tried it and it still doesnt work then its your control issue and you may need to do a ZERO MEMORY (instructions are in this forum) if you havent tried it then you could very well be wasteing your time playing with everything else.

once you try it then worry about the cam post.
If you have a legal copy of the software its one simple phone call, if you dont then go search the forums under visual mill ( I believe AlibreCAM use that cam software) they dont have there own, they use somone elses.

I am looking into buying the cad version of Alibre for drawings and m.o.t.s and the salesman threw in the cam for me to play( said they used visual mill or something like that) with as well, I havent even tried it as I didnt need it.

[Delw]

also make sure your "E" numbers fixture offsets are set correctlly somethign tells me they are not and
your first hole MUST BE AFTER THE the canned cycles not before.
I always postition the machine in the firs goo x what every y what ever to something other than the hole usually X0 Y0

and the colored text is hard to see.

[masterfabr]

I did a zero memory on the machine today. It solved nothing. Also not trying to be a dick but as I said I don't know what to remove from my program . I have a legal copy with all maintenance paid and have had for a very long time. I got news for you their support could use some support. I have been talking to them also. One call? LOL!!I have no problems with ACAD and the ACAM works nicely. The CAM posting is a joke tho . Can you or not tell me if I'm right about the code. Are you an experienced Fadal programmer? No,I didn't try your program as I don't know what it takse to make it run,what it is, and I've crashed enough stuff. I know what this should do,the first op runs perfectly and there has to be a reason the code is outputting what I THINK I see above.Do you see it or am I all wet?

[Delw]

do you know how to enter a program by hand? have you ever programmed a machine or are you new to this.
the problem with cam software is everyone thinks the could draw a pretty picture hit the button and be running parts when in fact most cant do that.

So I am going to assume you never programmed a machine nor have any clue what each function does.

GOTO Welcome to FadalCNC.com down load all there fadal manuals and read them, then input code in by hand and leave the cadcam stuff alone till you know what the functions do.

first thing you need to do is set your tool and fixture offsets,( I am guesing this is your major problem) its in the book on how to do it, with out them your going to crash all day long. then after you set your fixture and tool offsets start with a simple center drill code NOTHING ELSE do it exactly like I have written, with your dimensions. starting AFTER the g98g83 line

if you rely on cad cam and dont have a clue about how the machine works or what a program looks like your in for an expensive lesson. sometimes its best to turn the machine off and learn how things work before you turn them back on as it will be very expensive otherwise.

This is one major problem with todays society, every tom Juan and Achmen thinks they can be a machinist by buying a machine and a cad cam program., its not that simple.
to answer your question am I an experianced fadal program? NO I just play one daily.


BTW "ZERO MEMORY" is NOT "Did the memory clear thing"
DO NOT DO A ZERO MEMORY OR MESS WITH ANY CONTROL PARAMETERS UNTIL YOU LEARN THE MACHINE AND THE CONTROL AND HOW TO READ/WRITE A PROGRAM.

Delw