Decoiled DW inner skin to laser table

[PipeFitter72]

I searched but I just can't figure it out. Can I have the perforated inner skin of Double Wall decoiled duct go to the laser table, and the outer run at the coil line?

Currently I can generate a coil line file for the outer, but the perf does not nest.
If I set the duct to machine cut then both the inner and outer nest.
I would prefer not to have to make 2 maj to do a workaround.

[cadbyken]

You can assign a specific material to a specific machine.

[Dean-o]

Yes you can. I do it all the time. As a matter of fact, my shop supervisor wants us to use regular duct liner as the insulation on rectangular double wall. We send the outer joint with it's internal liner to the coil line and the inner skin we plasma cut.

[PipeFitter72]

Thanks for the replies. Let me make sure I am being clear. We currently send full joints of duct to the coil line by generating a file. I have the solid metal set to go to the coil line if full joints and go to the laser table if less than full joints. This works as expected. I have Perforate in the material settings for laser table only. If I process full joint DW straights, the outer will go to the coil line and the inner will go nowhere. When we want to make the perforated liner they will input duct full length minus 1/8 of an inch to force it to nest as machine cut. Then delete the outer metal nest to cut just the perforated.  What I would like to happen is when I process the DW duct for the perforated liner to automatically get nested for the laser table, and at the same time the outer gets made into a coil line file. It seems Dean-o is doing what we want. The question..is this happening in one process or does it require manual steps? If It's happening in one process what settings would I check?

[Dean-o]

I have perforated metal set to not be sent to the decoiler, so it comes up as something we can nest. We only use 56" long TDF connections on double wall with a 1" flange turned in on the inner perforated liner so the flange can be tack welded to the inside edge of the tdf joint. The inner length stretch out is 58" on a 56" finished length joint so it fits on a plasma cut sheet.

[PipeFitter72]

It looks like yours is the same as mine. I have perf set to no decoiler. but as long as the part says decoiled straight, the Galvanized goes to the decoiler and the perf goes nowhere. And I get "nothing to nest".  If I set the straight to machine cut it all gets nested. 

[nbuch]

We are currently in the same boat. Same settings as far as the Perf Material goes, but no such luck with this material nesting. However, we did find that by right clicking on an individual item and going to Properties>Developments and going to the proper part (Inner Skin) and setting the "Nesting" Preference to True-Shape Nesting, this will then allow the perf to be nested. Still havent found what drives this setting, as it automatically comes through as "No Preference" even though True Shape has (Default) behind the description. Theres most likely some other buried settings we have not found yet that need to be adjusted......  when you have multiple straight joints of DW, this is a time consuming process.

[PipeFitter72]

I tested and i get the same result as you. I can manually set the nesting to True shape and the perf will then cut on the laser. There is some combination of settings i have wrong i guess.

[PipeFitter72]

At this stage I am thinking of doing something with a script to make the outside duct material to "none" and change to machine cut.   We already do a separate MAJ to get all the liner to cut right. For some people the perf going to plasma/laser table and the duct going to coil line seems to happen correctly. I can't figure what needs to change in our setup. The material settings are just not fixing it.

[VirtualPilot]

I solved this issue with SCRIPTS, run one, OD goes to COIL LINE, run the next ID goes to TABLES...

I'm attaching the SCRIPTS, but USE at your discretion 

*** USE A SAMPLE JOB BEFORE YOU COMMIT! ***

[PipeFitter72]

I appreciate your sharing. I did make a script to get the inner to the table. I forgot to update this to let people know. I will review what you have posted, your scripts may be better than mine. 

[VirtualPilot]

I appreciate your sharing. I did make a script to get the inner to the table. I forgot to update this to let people know. I will review what you have posted, your scripts may be better than mine. 

I forgot to attach the instructions... below...

[PipeFitter72]

This is what I had done.

Code: [Select]

function DWDCP()
  dim dwall = item.DoubleWall
  dim ctype = item.cuttype

  if (dwall = true) and (item.CID = 866) then
   
    item.option["Override Cut Type"].value="Machine Cut"
    item.Material = "none"
    item.Update()
   
   Else
    item.DoubleWall = false
    item.InsSpec = "Off"
    item.insulation.status = "off"
    item.insulation.material = "none"
    item.Material = "none"
    item.Update()

  end if

end function