z axis speed Amada fo-3015NT 3

[hookie1985]

Ok we had our internal z cable replaced in the head this week. "aka the short cable" but now our z axis is super slow when it goes in the negative. Theres no in between. we usually run on standard at a decent pace but now its so slow we cant, and medium is so fast it crashes every time. I know theres a pot by the main board that controls that. would anyone happen to know what it is?

 

[hookie1985]

ok but wont that affect the material im currently cutting??

 

[LASERNINJA]

The "thickness" value just tells the sensor where to turn on. More or less. If you turn off the sensor, "trace off", the machine looks to the "thickness" setting to tell where the material is. The other day I had you run with the trace off. You said that it was way off the material and just welded. I would be willing to be that it was 2.5" plus "thickness" off the top of the material.

When the sensor is on, the cutting head starts at the home position, travels down to Zero + Thickness + 1" and then turns the sensor on to start "looking" for the material.

What I am proposing is, starting from the home position, going to zero + (-2.5) thickness then + 1" to turn on the sensor and start looking.

On another note. On the utility screen there is a button for 2nd machine position. Does it have a place for a "z" value? I have never used this feature before but it could certainly mess up the position for home.

 

[hookie1985]

i need coffee. my brain is not functioning right today. so when i zero it chang the thickness or while its cutting? lol im sorry im lost somewhere

 

[LASERNINJA]

No biggie. If I was there I would just fix it for ya. Easier. Plus I speak my own little laser language.

Super easy experiment.

Put the machine in 25% speed
Set the "thickness" to -2.5"
hit save.
Call up your program.
Turn the shutter key off the first time around.
Make sure the trace light is NOT on. (sensor active)
Hit start
Keep you had on the stop button just in case.


Keep in mind that its very cool you have an interest in your machine, how it works, and making it better. Your also saving your company a service call, possibly. Most operators would have give up about 39 posts ago. And, You helping me procrastinate from my paperwork.

 

[hookie1985]

Hey i appreciate all the help. I was the programmer for 8 years and then inherited the machine. So im trying to learn and get her back up to par. Ok quick question. If I set the thickness to -2.5 when i start the program the first line tells it what material it uses. Won't that make it default back to where its at??

 

[LASERNINJA]

The material call out m102, calls a specific cutting conditions file. That's the one u want to change.

For example, if you are cutting cold rolled 16 ga, your m102 will say, M102(CRS0.060). I would manually call up that file, then put in the -2.5 then hit save.....

 

[hookie1985]

so M102(-2.5)??

 

[LASERNINJA]

If you look right in the center of the attached file you can see it says "THICKNESS". That is where you put the -2.5

So, no, to answer your question. The M102 stays the same. It the cutting condition that you want to change, not the program. The other day I asked if the program has any z values. The program should have nothing to do with controlling the head motion.

 

[hookie1985]

Ahh gotcha!! ok i will do that next!!

 

[hookie1985]

It wont allow a - to be inserted??

 

[LASERNINJA]

okay,

What about the "2nd Machine position" on the Utility screen?

 

[hookie1985]

it has a z of 1.407 in it

 

[LASERNINJA]

Please set it to zero. Retract z, and tell me if z still says 5.5 (something)when its all the way home.

 

[hookie1985]

ok did it and it is at 5.437

 

[LASERNINJA]

Darn it. I am out of ideas for now. Maybe a day of gorging on turkey will jog something.

Oh, one quick thing, What if you put a G90 G92 X120.8661 Y61.0236 Z7.847 in the program.

I know... It goes against my moral fiber to put a z in the program. Its just in the name of science.

 

[ausman]

the code to switch the trace mode on is G32
Head will come down at the maximum allowable speed in trace mode (i.e it's sensing all the way down)
now slip the ruler between the sheet & the nozzle (shutter closed)

 

[hookie1985]

I will try both of the ideas and see if they work lol

 

[hookie1985]

What exactly causes a cone to go bad? It seems like a pretty simple piece so it's weird they go bad.

 

[ausman]

impact

 

[hookie1985]

No way to rebuild it?