Design Master HVAC allows you to draw hatches on your ductwork.
To insert a hatch, use the DM HVAC->Customization->Layers command. Select a layer system and either double-click it or press the Edit System button.
Use the Hatch Settings table to set the hatch pattern for the ductwork. Leave the Type as Predefined unless you have experience creating custom hatches.
To see previews of all the different hatch types, use the AutoCAD HATCH command.
- Type HATCH at the command line.
- Type T for settings.
The Swatch listed in the Type and Pattern section will show you what each pattern looks like.