sldProcMon.exe: What SolidWorks' Resource Monitor Actually Does (And Why It Eats CPU)

Open Task Manager during almost any SolidWorks session and you’ll find sldProcMon.exe sitting quietly next to SLDWORKS.exe. Most of the time it’s invisible — a few megabytes of RAM, no window, no icon you’d notice. Then, on some machines, it pins a full CPU core at idle, spawns a fresh copy every time you relaunch SolidWorks without cleaning up the old one, or — in scripted and remote-desktop automation — climbs to 90%+ CPU and refuses to let go. ...

7 July 2026 · 9 min · CadShift

SolidWorks Simulation Bolt Connectors — The Pretension Cycle, Abnormal Load Warnings, and What Actually Goes Wrong

The “Abnormal bolt pretension is detected during the modifying pretension cycle” warning stops your simulation run and tells you nothing useful. The docs say check material and geometry. Forums say add contact sets. None of that is wrong, but none of it explains the actual failure mechanism. This post covers how bolt connectors work internally, why the two-step pretension analysis exists, what “abnormal” actually means in this context, and the specific setup errors that trigger it. ...

3 July 2026 · 10 min · CadShift

SolidWorks Weldment Cut List Auto-Update — Why It Destroys Your Custom Properties and How to Stop It

You’ve spent an hour adding custom properties to each cut list item — part numbers, supplier codes, cost-per-unit. You modify a structural member, hit Rebuild, and they’re gone. Not obviously corrupted. Just attached to the wrong items, or pointing at stale folders that no longer exist in the tree. This is the cut list auto-update problem, and it’s not a bug. It’s the expected behavior of a consolidation system that doesn’t know you cared about those specific folders. ...

2 July 2026 · 8 min · CadShift

SolidWorks UI Settings That Don't Persist — PropertyManager, Toolbars, and the Registry Fix

Some SolidWorks settings save reliably between sessions. Others reset silently every time you restart, or behave differently depending on how SolidWorks was installed, what Windows profile type is in use, and whether any admin policy overrides your preferences. This post covers the specific settings that fail most often, where they’re stored, and the fixes that work. Where SolidWorks Stores Its Settings SolidWorks stores user settings in two places: the Windows registry and document files. Knowing which is which tells you immediately whether a reset issue is a machine problem or a template problem. ...

1 July 2026 · 9 min · CadShift

SolidWorks Wrap Feature — Emboss, Scribe, and Deboss: When Each Mode Fails and Why

The Wrap feature works instantly or fails with a cryptic error, with little indication of which outcome you’ll get until you click OK. Three modes — Emboss, Deboss, Scribe — fail in different ways and for different geometric reasons. Knowing which one applies to your geometry, and why the others will fail, stops the rebuild-error loop before it starts. What the Three Modes Actually Do All three Wrap modes start with a sketch on a flat plane and project that sketch geometry onto a curved or non-planar face. The divergence is what happens to the geometry after it lands. ...

30 June 2026 · 10 min · CadShift

Filtering SolidWorks Assemblies by Custom Property — The Advanced Component Selection Guide

A supplier discontinues a product line. You need to find every SKF bearing in a 600-part machine assembly and evaluate alternatives. With the standard Select menu you can hunt them down individually — or you can open Advanced Component Selection, type vendor = SKF, click Apply, and have every matching component highlighted in 3 seconds. Most SolidWorks users have never touched this tool. It sits one click off the cursor menu and handles property-based selection that would otherwise require a macro or a full PDM search. ...

29 June 2026 · 8 min · CadShift

SolidWorks Flat Pattern DXF Origin for CAM Software — Fix the Offset on Import

Every SolidWorks user who sends DXF flat patterns to a laser or plasma table eventually runs into this: the file imports into the CAM software, but the part is floating somewhere off in negative coordinate space, or centered around zero, or positioned wherever it happened to be when someone modeled the part. The CAM operator repositions it manually. Every. Time. This is not a CAM software bug. SolidWorks exports the flat pattern geometry exactly as it exists in the part’s coordinate system — wherever that happens to be. The fix is to tell SolidWorks to reframe the export around a specific point on the part, usually the lower-left corner of the bounding box. ...

28 June 2026 · 9 min · CadShift

SolidWorks Sheet Metal: Why Holes Become Ellipses in the Flat Pattern (and the Fix)

When you cut a hole on a bent face in SolidWorks, you get a circular feature in 3D. When you flatten the part, that same hole can appear as an ellipse in the flat pattern — and that ellipse is what gets exported to your DXF and sent to the laser cutter. The laser punches an ellipse. Your hole doesn’t fit the fastener. This isn’t a bug. It’s geometry. But the fix is straightforward once you understand what’s happening. ...

26 June 2026 · 7 min · CadShift

STEP Files Can't Carry K-Factor — Why Your Flat Pattern Is Wrong After Import

A fabricator opens your STEP file. They run Insert Bends. SolidWorks creates a flat pattern. The dimensions are wrong. Not slightly wrong — off by several millimetres on every bend. Enough to cause rework. Enough to get a call from the shop floor. The reason is that STEP files don’t carry k-factor data. They never did. Understanding why, and what to do about it, is the difference between a clean handoff and a rebuild. ...

24 June 2026 · 7 min · CadShift

Cloud CAD Limitations — Large Assembly Performance, Data Sovereignty, and When Desktop Wins

The cloud CAD pitch is straightforward: access your designs from anywhere, collaborate in real time, no IT overhead for file servers. For small teams working on straightforward product designs, it largely delivers on that promise. But engineering teams hitting cloud CAD limits don’t usually fail on the simple cases. They fail six months into a project when assembly component counts exceed the comfortable range, or when a compliance audit asks where the design data is physically stored, or when an engineer needs to work on-site at a customer facility with unreliable internet and the tool won’t load. ...

23 June 2026 · 11 min · CadShift