Amada FO-3015NT .500" Cut conditions 5

[L A S E R guy]

Hello all, new here but have been lurking for quite some time. We have a 2005 FO-3015NT that has been quite troublesome to us. The previous owners didn't take care of it to much. Anyhow I'm trying to cut some 1/2" mild steel today and at first things started off decent but tapered off about halfway through the sheet. I'm having a really hard time with the pierce. It's bubbling up and with that I loose the cut. Nozzle is center with a decent lens, also the HS sensor program ran just fine. I didn't have any issues cutting some thinner mild last week with the same oxygen bottle. I have attached pictures of my cut condition pages. Any advice would be appreciated.

Thank you!!

[URL unfurl="true"]https://res.cloudinary.com/engineering-com/image/upload/v1556725836/tips/Cut_Cond._1_hgr5ch.bmp[/url]
[URL unfurl="true"]https://res.cloudinary.com/engineering-com/image/upload/v1556725877/tips/Cut_Cond._2_xayykj.bmp[/url]
[URL unfurl="true"]https://res.cloudinary.com/engineering-com/image/upload/v1556725921/tips/Cut_Cond._3_f1gvwy.bmp[/url]

 

[LaserSpyder]

laserguy id say ur pierce is wrong try pierce M103A7 and ill post my cutting condition in just a min

 

[LaserSpyder]

my cutting conditions are .....FEED RATE.40. POWER.3700 FREQ.1500 DUTY.100 GAS PRESS.0.10 GAS tIME.2.0 NOZZLE GAP.0.0300 FOCAL INCH-0.098
and my material info is set to STD
these should get you at least going in the right direction hope it helps 2thumbsup

 

[LaserSpyder]

if you search ((.500 CUT CONDIOTIONS)) on this site it will show you some posts that should be very helpful to you, let us know if your problem is solved

 

[L A S E R guy]

Hello LaserSpyder! Unfortunately after trying your condition, I am left with a part that is not cut all the way through, and still very inconsistent pierces. I tried also swapping for a brand new lens with the same results. Could my problem be deeper than just a cut condition?

Thank you!

 

[LaserSpyder]

what kind of nozzle are you using?

 

[LaserSpyder]

and can you show pics of ur pierce and cuts please

 

[L A S E R guy]

I'm using a 1.4 double. Here's some picture on the cuts, these are the better ones. The rest are still stuck in the sheet. Whats confusing for me is how inconsistent it is. Some pierces will be just fine, some whole parts even. And the next pierce will splatter everywhere.

 

[LaserSpyder]

are your slats worn down? I just recently drew our slats .0125 taller and got incredible improvements on our cuts, I did this because I figured the slat holders have had to sag over time so I made up the difference and got really good results......back to what u were saying ive noticed the same inconsistencys in my pierces CAN ANYONE ELSE CHIME IN PLEASE

 

[AR550]

Hi Laserguy. I've also been a frequent lurker and thought it time to help if i could, so here are my settings for 1/2"

Looking at you photos you are cutting similar parts that i do, so i assume you use E3 for the holes etc and E4 for outer edge cutting.

Change cutting type from Standard to Thickness, Focus at 0.039

Cut
E3. FR 37.48, Power 3100, Freq 1500, Duty 70, GP 0.08, GK 1, GT 1.5, NGap 0.040, Offset 0.0105, Edge Data 203, App Data 0, Fine 0, Pierce 103
E4. FR 39.02, Power 3100, Freq 1500, Duty 70, GP 0.08, GK 1, GT 1.5, NGap 0.040, Offset 0.0100, Edge Data 0, App Data 0, Fine 0, Pierce 103

Pierce
103. Power 4000, Int Freq 100, Int Duty 100, Incr Freq 0, Incur Duty 0, ST 0, SC 0, Pierce T 1.0, GP0.08, GK 1, GT 0.5, NGap 0.1570, AC offset 0, Blow 1, After Pierce 0, B cut 0, Pierce Type 0.

Edge.
203. Ang 170, Edge Power 2000, Edge Freq 10, Edge Duty 25, PT 0, GP 0.08, GK 1, Recov Dist 0.0300 Recov Feed 1.97, Recov Freq 10, Recov Duty 25, NG 0.0400.

Hope this helps.

 

[L A S E R guy]

LaserSpyder, our slats have been replaced early on this year, they're holding up well so far. But I think that is a great idea though, I'll have to give that a shot when these need to be replaced.

Hello AR550! Ill give those conditions a go sometime later today and get back with my results. And actually we're using E4 for everything but our nesting software certainly has the capabilities to run multiple so I will set it up to do so.

Thanks everyone!!

 

[LaserSpyder]

I just noticed etching!! are you etching all parts? if so are they getting all etched at the beginning of program or is every part getting etched and cut one at a time? im asking because I lose the first few cuts after an etch no matter what I do.

 

[L A S E R guy]

Each part is getting etched and then cut. That's interesting you say that because only recently I've started etching part numbers. Also I use the same etch condition for all of the materials, and it uses nitrogen. I haven't been able to get a good etch with oxygen but I haven't messed with it much. That could be my problem all along! I haven't had a chance yet to test AR550's condition yet but I'll also try messing with adding oxy to the etch again.

 

[LASERNINJA]

It takes a bit to bleed out nitrogen after you etch.

Most folks do all the etching, the purge for a sec and the go to oxygen.

You can add a big gas time to the Pierce page, or, G31 P1 T10; GO4 X3.0

This will fill the head with oxygen before you go to cut

 

[LaserSpyder]

yes I can almost guarantee that's what is causing you to lose cuts try etching entire sheet first then cutting I think your cuts will improve.

 

[L A S E R guy]

Today I'm cutting more mild steel and I noticed that even my 11ga, 7ga and 1/4" mild conditions aren't performing like they used to. Same thing as the 1/2", inconsistent pierces. I tried etching all the parts first with the same results. I noticed a trend on the first two sheets I've cut and that is in every part the first hole cut, it is always "exploding". This was 11ga and 7ga. But more puzzling to me is that halfway though the 1/4" sheet it started to cut everything like it used to. No exploding pierces and parts dropped out like butter with very little to no dross. Could this be something related to the oxygen supply, like somethings is not quite failing? Has anyone experienced something like this? I can't think of anything off the top of my head that's changed like the G code for instance.

Edit: Beam purge filters were replaced last fall at the 10,000 hour mark.

Thank you!!

 

[LASERNINJA]

I have seen leaks in the nitrogen solenoid before.

When you are done etching, close off the nitrogen completely, bleed off the gas in the line, then cut with oxygen. See if that makes a difference.

 

[L A S E R guy]

LASERNINJA, Thats it! So far after shutting the nitrogen off and bleeding the line my 1/4" and 7ga mild cut conditions are cutting great! I did not make any changes to these conditions as well. Recently we moved to a bulk tank. After installing it and turning the nitrogen on for the first time it tripped the safety. I'm wondering if this had damaged the solenoid or something now.

Thanks everyone for the help. This is a great forum! Hopefully I'll be able to chip in when someone needs some help.

 

[LaserSpyder]

where's my star!! im the one that noticed the etching haha JK but now try not shutting off nitrogen and just bleed off the line you might not have a leak because even if you don't have a leak you would still lose a couple cuts after etching if you don't bleed line

 

[L A S E R guy]

There's a couple stars lasersypder haha! I just cut some 3/8 parts that came out beautiful! Later today I'll try and complete my 1/2" order with the new conditions. Question, even if I switch my etches for mild steel with oxygen will I still need to bleed the line?

Thanks!