linearize evrything

Started by DUM1, May 01, 2024, 12:41 PM

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DUM1

the programmers at the shop I work at use linearize on everything, roughing and finishing.
I ask why,? because I can't read the code to see if for instance, they are using too big of a lead in lead out or right pitch on a thread mill and so on and so forth .
they say because its more accurate.
from all your experience is it really more accurate to have everything in .0002 to.0005 increments?
or smaller

RobertELee

I have never seen a huge issue with it when you can load the entire program to a machine. However with the HUGE size of programs it makes, they don't fit into machines with smaller memories.   So you need to drip feed it, which can occasionally cause stall/buffering during the cut.

One thing that can be an issue is faceting on curves and if you have a surface that requires a smooth finish it can be a problem, where an actual G02/03 code should make a smooth cut.

But the biggest issue I have ran into is program size and like you said not being able to quickly read it/make changes.
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CNCAppsJames

Quote from: DUM1 on May 01, 2024, 12:41 PMthe programmers at the shop I work at use linearize on everything, roughing and finishing.
I ask why,? because I can't read the code to see if for instance, they are using too big of a lead in lead out or right pitch on a thread mill and so on and so forth .
they say because its more accurate.
from all your experience is it really more accurate to have everything in .0002 to.0005 increments?
or smaller
"More accurate" is bullshit. Pure, unadulterated, steaming, bullshit!

Now, "can" linearizing a path or certain paths be helpful? That's a different discussion not even related to accuracy. For example, If I want to spin C-Axis as opposed to XY contour around a part, in Mastercam I'll linearize that path then in CAMplete change from a 3+2 path to a 5-Axis path and do a few other things. At no time do I EVER linearize a path to make it more accurate. I change the high speed mode.

JM2CFWIW

:coffee:
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Dylan Gondyke

Quote from: DUM1 on May 01, 2024, 12:41 PMthe programmers at the shop I work at use linearize on everything, roughing and finishing.
I ask why,? because I can't read the code to see if for instance, they are using too big of a lead in lead out or right pitch on a thread mill and so on and so forth .
they say because its more accurate.
from all your experience is it really more accurate to have everything in .0002 to.0005 increments?
or smaller

Maybe they got burned one too many times on the controllers flipping/reversing small arcs  :whistle: In that case, linearization is indeed more accurate than cutting a big honking trench.
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Toolpath Systems Product Owner- Mastercam

DUM1

Quote from: RobertELee on May 01, 2024, 02:33 PMI have never seen a huge issue with it when you can load the entire program to a machine. However with the HUGE size of programs it makes, they don't fit into machines with smaller memories.   So you need to drip feed it, which can occasionally cause stall/buffering during the cut.

One thing that can be an issue is faceting on curves and if you have a surface that requires a smooth finish it can be a problem, where an actual G02/03 code should make a smooth cut.

But the biggest issue I have ran into is program size and like you said not being able to quickly read it/make changes.


thats what I tell them all the time, but my 20 years programming and making parts dont count now because I am not a programmer here , just the setup guy

DUM1

Quote from: Newbeeeeâ„¢ on May 01, 2024, 03:00 PMThat is HUGE code....you must have fast controls to process this.
I tried it once on a machine (0iC) and she choked in no time flat.
What work are you doing - what materials and tolerances do you have to hold?

the programs are huge as chit , the HICUT chokes the machine even more , and the facets are common occurrence
chit all day long 

gcode

sounds like someone got burned by a filtering error back in the day
I used to work with a guy who refused  to filter surfacing toolpaths
He insisted on point to point output, even on old machines limited to 125K
memory.
We'd try to drip feed those old dogs, but they stuttered and stumbled really bad.
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RobertELee

Quote from: gcode on May 02, 2024, 06:39 AMHe insisted on point to point output, even on old machines limited to 125K
memory.
We'd try to drip feed those old dogs, but they stuttered and stumbled really bad.


Ugghhh....don't get me started. Machines that were converted from tape back in the early 90s can't handle much more than a slow roughing cycle.

DUM1

the arc filter settings and the HICUT settings are always an issue I try to tell them but as I said I am just a set up guy here. I interviewed for the programming position and the set-up position they needed a setup guy worse, so they said.
meanwhile always waiting on the programmers. sometimes weeks at a time just running repeat parts while waiting.

CNCAppsJames

Any chance your machinesntake G10.8 (tolerance control)?
"That bill for your 80's experience...yeah, it's coming due. Soon." Author Unknown

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CNCAppsJames

Quote from: DUM1 on May 02, 2024, 07:09 AMthe arc filter settings and the HICUT settings are always an issue I try to tell them but as I said I am just a set up guy here. I interviewed for the programming position and the set-up position they needed a setup guy worse, so they said.
meanwhile always waiting on the programmers. sometimes weeks at a time just running repeat parts while waiting.
I've been victim to that before. The company advertises for a "programmer" when they have exactly ZERO intention of adding a programmer. I only lasted a month or so there. 
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JParis

Quote from: CNCAppsJames on May 02, 2024, 07:15 AMI've been victim to that before. The company advertises for a "programmer" when they have exactly ZERO intention of adding a programmer. I only lasted a month or so there.

Went down that same road too many times in my younger days...never lasted long
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Flycut

Quote from: CNCAppsJames on May 02, 2024, 07:15 AMI've been victim to that before. The company advertises for a "programmer" when they have exactly ZERO intention of adding a programmer. I only lasted a month or so there.

I've had many job interviews.
After a while you get to recognize their true intentions.
I interview them just as they interview me.
Some times "getting the job" doesn't mean you want the job.
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JParis

Quote from: Flycut on May 02, 2024, 08:24 AMI've had many job interviews.
After a while you get to recognize their true intentions.
I interview them just as they interview me.
Some times "getting the job" doesn't mean you want the job.

^^^^^This, so much this^^^^^
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Jeff

Quote from: DUM1 on May 02, 2024, 07:09 AMthe arc filter settings and the HICUT settings are always an issue I try to tell them but as I said I am just a set up guy here. I interviewed for the programming position and the set-up position they needed a setup guy worse, so they said.
meanwhile always waiting on the programmers. sometimes weeks at a time just running repeat parts while waiting.
What are they using for the HiCut settings?
Also is this HiCut PRO?  There's a huge difference between the Pro and non pro. Non pro is dogshit.