CSWAP-SU Cheat Sheet 2026: One-Page Review of Must-Know Facts

Identity and Aliases: What This Exam Actually Is

This cheat sheet covers Certified SOLIDWORKS Advanced Professional Surfacing, issued by SOLIDWORKS (Dassault Systèmes). You will see the same credential written several ways, and the naming drift trips up a lot of candidates who search for study material.

All three refer to the surfacing professional exam. When you search for a "CSWPA-SU practice test" or a "CSWP-SU exam" guide, you are looking for the same assessment. For a fuller treatment of the naming question, see What Does CSWAP-SU Stand For? and What Is CSWAP-SU Certification?

The Numbers to Memorize

These are the hard facts worth writing on an index card. Each comes from the issuer's exam page or the SOLIDWORKS Certification Program pages, checked October 5, 2026.

Two clarifications save confusion. First, "2017 or later" is a software compatibility floor, not an exam revision year. The current exam page is undated, and "2026" in article titles only signals editorial freshness. Second, no official pass rate or certification-specific salary figure has been verified, so be skeptical of anyone quoting one. Our own pages on pass rate and passing score explain what can and cannot be said with confidence.

The 19 Skill Lines at a Glance

The issuer publishes a list of exam-coverage topics. That list has 19 lines, but "Spline Creation" appears at positions 1 and 18, which leaves 18 distinct topic names. These are unweighted skills, not 19 official weighted domains, and not an exhaustive blueprint. Do not assume equal allocation, and do not assume any one topic carries the most points.

The clusters above are our own study grouping, not issuer categories. For a topic-by-topic walkthrough, the companion guide CSWAP-SU Exam Domains: Complete Guide to All 19 Content Areas goes deeper.

Curves and Splines: The Foundation Layer

Every surface in this exam rides on curves. If your splines are lumpy or your 3D curves are poorly constrained, downstream surfaces will fail to knit, wrinkle, or refuse to thicken. Three skill lines live here.

Surface Creation: Choosing the Right Feature

The exam asks you to build or rebuild surfaces, so feature selection speed matters inside a 90-minute window. Six creation tools appear on the published list: Boundary Surface, Loft/Blend Surfaces, Filled Surface, Swept Surface, Planar Surface, and Ruled Surface Creation.

Boundary Surface vs Loft

This is the comparison candidates ask about most. Both connect profiles, but they differ in how much control you get.

If a task demands curvature continuity with neighboring faces, Boundary Surface is usually the stronger tool. If you only need a clean transition between two profiles, a loft is faster to set up.

Repair and Edit Tools: Knit, Trim, Untrim, Extend, Move Face

Because the exam centers on broken surface bodies and incorrect imported bodies, the repair toolset is where many points are won or lost. The published list includes Knit Surface, Trim Surface, Untrim Surface, Extend Surface, Offset Surface, and Move Face.

What each repair tool is for

• Trim Surface: removes unwanted portions using a mutual or standard trim. Know the difference between keeping and removing selections.
• Untrim Surface: restores a surface to its natural boundary or removes interior holes and edges, useful when an import left unwanted trims behind.
• Extend Surface: grows a surface beyond its boundary, helping close gaps or create overlap for trimming.
• Offset Surface: creates a parallel surface at a set distance, also used to copy a surface at zero distance.
• Move Face: repositions or modifies faces on a body, a practical fix for imported geometry that is slightly off.
• Knit Surface: stitches separate surfaces into one body and can create a solid when the result is a closed volume.

A realistic repair workflow runs like this: inspect the imported body, delete or untrim bad faces, patch holes, extend and trim for clean edges, then knit. Practicing that full loop on deliberately broken parts is more valuable than drilling each tool in isolation. Our CSWAP-SU Study Guide outlines how to build such repair drills.

Going Back to Solid: Thicken, Fillet, Split Solid Body

Many tasks end with a solid. Three skill lines cover that final conversion: Thicken, Fillet, and Split Solid Body.

Verification Checks That Catch Silent Errors

Because the exam checks your finished model against a target, a repair that looks correct can still be wrong. The habit that protects you is verifying with measurable properties before you submit an answer.

Surface area and mass checks

• Mass properties: confirm the mass of the final solid matches what the question expects. A mismatch usually means a missing patch, a wrong thickness direction, or an unclosed knit that produced a surface body instead of a solid.
• Surface area: use the measure tools to check the total surface area of repaired bodies against the stated value when one is provided.
• Body count: verify you have the expected number of solid and surface bodies. A stray leftover surface can change results.

Units, material, and precision

• Confirm document units before reading any mass or area value.
• Apply the material specified in the task; a wrong or missing material silently changes mass.
• Check decimal precision settings so you read values at the resolution the question asks for.

Exam-Day Mechanics and Retake Rules

The exam is delivered online through SOLIDWORKS/VirtualTester. Current instructions link the VirtualTester Web Client, while older material uses Tangix/TesterPRO terminology; they describe the same testing ecosystem across different eras, so do not be thrown by the older names in legacy guides.

• Cost: USD 20 in North America for one attempt. See CSWAP-SU Certification Cost for the pricing breakdown.
• Eligibility: no formal entry prerequisites. The issuer page recommends SOLIDWORKS Design Essentials, Advanced Part Modeling, Advanced Surface Modeling, and its Surfacing exam-preparation course, but these are preparation recommendations, not mandatory course-hour requirements. See CSWAP-SU Requirements.
• Software: you need SOLIDWORKS 2017 or later installed to open the exam files.
• Time: 90 minutes, so budget it deliberately rather than perfecting the first task.
• Retakes: wait at least 14 days and purchase a fresh exam credit.

For scheduling specifics, check CSWAP-SU Exam Dates. For a realistic sense of effort, read How Hard Is the CSWAP-SU Exam?

A Domain-Ordered Review Plan

Order matters more than volume. Curves feed surfaces, surfaces feed repair, and repair feeds solid conversion, so review in that sequence. If you have a few weeks, allocate roughly one cluster per week and finish with timed full-length practice.

If you fail an attempt, the 14-day retake wait fits neatly into a two-week targeted plan: spend it re-drilling the cluster where you lost time, then retake with a fresh credit. The full strategy is in the study guide, and you can test yourself on original practice questions at our main practice test site. Note that these are original mocks, not official sample questions.

Frequently Asked Questions