ZWCAD CTB/STB Plot Styles: Monochrome and Lineweight Setup
ZWCAD supports CTB and STB plot-style workflows, so many office standards can transfer from other DWG-based CAD systems. The important step is confirming the correct table is installed, selected and actually applied during plotting.
Beginner takeaway: A CTB/STB file only helps when the drawing mode and plot settings agree with it.
What this workflow is really doing
ZWSOFT describes CTB/STB as the controls for consistent print lineweights and colors and provides Plot Style Table Editor workflows for adding/customizing styles.
Related CADPlotting guides: CTB vs STB for CAD Standards: Which Should You Use?, monochrome.ctb Not Working in AutoCAD, Plot Styles & Lineweights Guide.
Step-by-step workflow
Step 1 — Identify style mode
Where: Drawing / Plot dialog
Do this: Determine CTB or STB workflow.
Check: Correct table type is expected.
Step 2 — Open Plot Style Table controls
Where: PLOT > Plot style table
Do this: Select or create the office style.
Check: Table is visible.
Step 3 — Check lineweights/colors
Where: Plot Style Table Editor
Do this: Review mapping for key colors/styles.
Check: Major/minor hierarchy is intentional.
Step 4 — Enable style plotting
Where: Plot options
Do this: Ensure styles/lineweights are applied.
Check: Preview changes.
Step 5 — Test PDF
Where: ZWCAD PDF output
Do this: Inspect monochrome, grayscale and lineweight hierarchy.
Check: The table behaves as the office expects.
Common problems and the first place to look
| Symptom | Likely cause | First check |
|---|---|---|
| monochrome.ctb does not make black | Style not applied / true-color behavior | Check plot options and object properties. |
| CTB missing | Plot style path | Install the controlled file. |
| STB drawing cannot use CTB directly | Drawing style mode | Use the correct style-table workflow. |
| Different PCs differ | Different CTB/STB versions | Standardize file distribution. |
Practical example
If a migrated drawing looks correct on screen but the PDF becomes flat and color-heavy, inspect the Plot Style table and output options before modifying hundreds of layers.
Good office standard
Store the approved ZWCAD CTB/STB files with the CAD standards package and include them when transferring projects that depend on them.
Official references
Frequently asked questions
Does ZWCAD support CTB/STB plotting?
Yes. ZWSOFT documents both color-dependent and named plot-style workflows.
Can ZWCAD publish several DWGs to PDF?
Yes. PUBLISH can work with model/layout output from one or more drawings.
Should I assume an AutoCAD Page Setup is identical in ZWCAD?
No. The concepts transfer, but verify the selected ZWCAD printer/PDF configuration, media and output on a real sheet.
Explore more in ZWCAD Plotting for AutoCAD Users: PLOT, PAGESETUP, CTB/STB and PDF.