Insulation surface issues when plotting

[Tye Austin]

We are using fabrication parts in Revit (same issue in Revit 2020 through 2022).  I want our insulation to plot as a line but see the piping with the pipe filter colors below.  I'm creating a filter for the insulation and I can make it look the way I want in the view / on the sheet in Revit but when it plots, the surface of the insulation plots solid and I do not see the pipe under the insulation.  I have a transparency set.  I was emailing someone at another company and they sent me a screenshot and it looks like their filters are set up the same as mine but his is plotting correctly.  We are both using Hidden Line.  I'm wondering if maybe there is something that needs to be changed in the database for the insulation?  Some other issue I haven't thought of?   I tried setting the material of the insulation in Object Styles to air...   feels like I've tried everything.

[craigjonnson]

I dont use transparency as i have found this screws up other details that are required.
Here my settings: FYI I ran these on an OOTB config and they work too.
VV - Visual Graphics > Object Styles > MEP Fabrication Category. Set Insulation to Hidden 0.75
Manage Tab > Additional Settings > Line Styles.
Create new Linestyle Named Hidden 0.75 and set the line pattern to Hidden 0.75. Click OK to finish.
NOTE: If your using a grey colour for lining / insulation set the name of your line to hidden 0.75 Grey and pick the same grey colour. This i'll explain next.
manage Tab > MEP Settings > Mechanical Settings. Set Linetype to the one you just created. Ive found that the object style pattern and this hidden line works better when you match them. If these are different colours, the print isnt right.
This is all in metric, but hopefully you will get the idea.
On thing to note is do not apply weights or line styles within your filters and it applies the weight and style to everything within the plus dropdown. Hidden details, centre line, insulation, etc.

[Tye Austin]

Thanks Craig -

Same result for me when I replicate your settings.  then line is dashed now but insulation surface still masking the piping below.  see screenshot.  That's why I was thinking maybe it's a database setting...  nothing I do in Revit affects the insulation surface.

[rtlflat]

When you click into the view and check the properties... my guess is the "View Discipline" is set to "Coordination".

Try setting to "Mechanical" instead

[craigjonnson]

Yes, the coordination view discipline removes the detail lines and if all else fails, i am more than happy for you to share a rvt file without your database and have a good look for you. I've managed our Revit templates and database, est and shop for quite a few years now.

[Tye Austin]

Yesss!  the View Discipline did it.  Damn...  banged my head against the wall a while on that one.  wouldn't have thought view discipline would control insulation surface...  but good lesson for me.  Thanks !