Automation

Engineers are feeding SolidWorks tasks to ChatGPT, Copilot, and Claude and getting working VBA macros back — sometimes. A Reddit post showing a ChatGPT-generated STL export macro pulled 26 upvotes. A separate thread about building an MCP server for the SolidWorks API drew 15 comments. The interest is real, and for good reason: writing a SolidWorks VBA macro from scratch means wrestling with a COM API that has methods taking 23 parameters and returns boolean values that aren’t actually booleans. ...

Large engineering projects create file management nightmares. You start with good intentions—clear naming conventions, organized folders, consistent metadata. Three months later, you’re hunting through folders named “Final_v2_ACTUAL” and files called “bracket_modified_JM_03152026.” Manual file organization breaks down at scale. When your team grows beyond five engineers or your part library exceeds 500 files, human inconsistency creates chaos. Missing parts during assembly reviews. Fabrication delays from incorrect file versions. Hours spent searching for the right DXF. ...

The Export Problem Nobody Talks About You’ve finished the design. The model is clean, the drawing is done — and now comes the part nobody put on the project timeline: exporting everything. Open part. Save As. Choose format. Set options. Confirm. Repeat. Forty times. If you’ve spent any real time in SolidWorks, you know this routine. It’s not hard, exactly — it’s just slow, repetitive, and surprisingly easy to get wrong. One bad export setting, one missed bend line, one file dropped in the wrong folder, and suddenly you’re fielding questions from manufacturing because they got bad data. ...

If you’re building SolidWorks automation or evaluating how existing tools work, the architectural question of in-process versus standalone matters more than most developers initially expect. The choice affects which API calls you can make, how reliably the automation runs, and how much maintenance you’ll do when SolidWorks updates. This is worth understanding whether you’re writing your own add-in or evaluating third-party tools. The Two Execution Models In-process automation runs inside the SolidWorks process. An add-in is a DLL loaded by SolidWorks at startup. When your add-in code runs, it’s in the same memory space as SolidWorks itself. You communicate with the SolidWorks API through a direct object reference — no inter-process communication, no marshaling. ...

Your engineering team has the talent and experience to deliver exceptional results. But watching skilled engineers burn hours on repetitive file conversions and manual exports? That’s not maximizing their potential. CAD automation software transforms how engineering teams handle routine tasks, freeing up time for actual design work and innovation. The question isn’t whether automation could help — it’s whether you can afford to keep operating without it. Here are five clear indicators that your engineering team is ready for CAD automation software. ...

When your engineering team spends hours each week manually converting CAD files, you’re bleeding money. Recent surveys show engineers spend up to 30% of their time on repetitive file conversion tasks that automation could handle. The real question isn’t whether manual CAD conversion wastes time — it’s what this inefficiency costs your organization and how much you could save with an automated solution like CadShift. This analysis breaks down the actual costs of manual conversion versus automated tools, giving you concrete data to build your business case. ...