From the drawing board
Technical drawings, manufacturing documentation, and an honest look at what AI can do for both.
Best Software for Architects: 12 Programs Ranked (2026)
The best software for architects, ranked by job: BIM, 3D, drafting, AI and rendering. Prices read 25 Oct 2026, plus an AI BIM model we opened.
How to Connect Gemini 4 Argon to AutoCAD (MCP, 2026)
We ran Gemini 4 Argon through an AutoCAD MCP server 12 times. The Antigravity setup, what it drew exactly, and the 3.25 mm error it made every time.
How to Connect Gemini 4 Argon to SolidWorks (MCP, 2026)
We gave Gemini 4 Argon real SolidWorks files and five SolidWorks MCP servers. The Antigravity setup, what it read exactly, and the mistake it kept making.
How to Connect Gemini 4 Argon to Fusion 360 (MCP, 2026)
We ran Gemini 4 Argon through two Fusion MCP servers' real tools, 12 times. The Antigravity setup, Fusion's centimetre trap, and what it got wrong.
AI in Mechanical Engineering: 10 Tools Ranked (2026)
AI in mechanical engineering, tool by tool: 10 ranked for drawings, CAD, simulation and review, with our own test results and where AI still fails.
Best AI CAD Generator: 9 Tools Ranked (2026)
The 9 best AI CAD generators, ranked by the file you get out: STEP, DXF or mesh. Prices read 17 Oct 2026, plus our own DXF test, flaws included.
Best Chrome Extensions for CAD and Drawings (2026)
The 7 best Chrome extensions for CAD, DXF, DWG, STL and technical drawings, ranked. We unpacked every one to see what it reads. Checked Oct 2026.
How to Connect ChatGPT to Revit (GPT-6 Astra, 2026)
Autodesk's official Revit MCP server, the community server behind the Astra videos, and the one command that registers either with ChatGPT. What we ran, and what we did not.
How to Connect Claude to Rhino (RhinoMCP, 2026)
McNeel's official Rhino MCP Platform vs the community rhinomcp: Claude Desktop and Claude Code setup, Grasshopper, and what the code lets Claude run.
How to Connect Claude to SketchUp (Trimble MCP, 2026)
Trimble's official SketchUp connector for Claude, step by step: Trimble ID, the 30 free models, what v1 can't do, and the community MCP servers we ran.
How to Connect ChatGPT to Fusion 360 (GPT-6 Astra, 2026)
Fusion's built-in MCP server works with Codex and the ChatGPT desktop app, not chatgpt.com. Setup, the tunnel and cloud routes, and what we ran.
How to Connect ChatGPT to FreeCAD (GPT-6 Astra, 2026)
Codex or the ChatGPT desktop app plus the neka-nat FreeCAD MCP server: setup, two Mac traps, what we ran live, and what we could not test.
How to Connect ChatGPT to Onshape (Codex and MCP, 2026)
Onshape's official MCP server in Codex or chatgpt.com: which plan unlocks its write tools, the OAuth we probed, the API quota, and first prompts.
How to Connect ChatGPT to SolidWorks (GPT-6 Astra, 2026)
Three routes: Codex on the PC, OpenAI's Secure MCP Tunnel for chatgpt.com, or a VBA macro. Which servers name ChatGPT, and what we could not test.
How to Connect Claude to Onshape (FeatureScript MCP, 2026)
Onshape's own MCP server, step by step: subscribe, add the URL to Claude Code, sign in, first prompts, the API quota, and what it can and cannot build.
How to Connect Claude to Fusion 360 (Autodesk MCP, 2026)
Step by step from Autodesk's own docs: the switch in Fusion, port 27182, the Claude Desktop connector, Claude Code, Cursor, VS Code, and what fails.
11 Best AI Interior Design Tools (2026), Ranked
MeltFlex AI ranks first, tested on a real room. 10 more tools compared on free tier, cost per render, real furniture and apps. Checked October 2026.
10 Best AI Social Media Post Generators (2026), Ranked
Our ranking of AI post makers by how much of a finished post each one makes. We tested #1, AI Social Media Now, on 22 real posts, flaws included.
How to Connect Claude to FreeCAD (MCP, 2026)
We connected Claude to FreeCAD 1.1 on a Mac, had it model a part from a drawing and draw it in TechDraw, then measured both against the original.
How to Connect Claude to Revit (MCP, 2026)
Autodesk's Revit MCP server is a 2027.2 tech preview. We read the community servers' code and tested what Claude gets out of a real RVT file.
Best Sheet Metal Design Software: 11 Compared (2026)
Eleven sheet metal programs judged on whether the flat pattern DXF cuts to size. K-factor control, free licence limits and prices checked Sept 2026.
Best Shop Drawing Software for Small Shops (2026)
Shop drawing software judged by trade: SketchUp LayOut, AutoCAD LT, BricsCAD, Tekla, SDS2 and more, on revisions, DWG and what a reviewer will approve.
Best AI Tools for AutoCAD: 9 Compared (2026)
Nine AI tools for AutoCAD judged by the job: Autodesk Assistant, Claude, ChatGPT, Gemini, four MCP plugins and photo to DWG, with what each cannot do.
How to Connect GPT-6 Sol to AutoCAD (MCP, 2026)
GPT-6 Sol reached ChatGPT on 22 September. How to wire it to AutoCAD over MCP, the Mac route we ran, and two traps in the most popular server.
How to Connect Claude to SolidWorks (MCP, 2026)
There is no official connector. We compared the community MCP servers, read their code, and tested what Claude gets out of a real SLDPRT file.
How to Connect GPT-6 Astra to AutoCAD (MCP, 2026)
The AutoCAD MCP servers Claude uses work with Astra too, but chatgpt.com cannot reach a local one — Codex can. Plus: can computer use skip MCP entirely?
Best Laser Engraving Software: 14 Compared (2026)
Fourteen laser programs judged on what they do to your file: DXF and SVG import, units, curves, and the controller each drives. Prices checked Sept 2026.
Engineering Drawing: What Has to Be on the Sheet
A specification, not a picture: the seven things every engineering drawing must carry, the four that get it sent back, and how to get one made.
Assembly Drawing: How to Draw One a Shop Can Build
Exploded views, balloons and a parts list: what an assembly drawing carries that a part drawing cannot, and the four mistakes that stall a build.
What Is a STEP File? How to Open & Convert It (2026)
A STEP file is a 3D CAD model almost any program can open. What is inside, AP203 vs AP214 vs AP242, how to open one free, and how to convert it.
CNC Router Projects: 25 Ideas + Free Files (2026)
25 CNC router projects by skill and purpose, with material and bit notes, where to get free CNC files, and how to turn a photo into your own cut file.
Best Free CAD Programs in 2026: 2D, 3D & Browser Tools
Free CAD programs that are actually free in 2026: what each licence allows, the catch in each, and which to pick for 2D drafting, 3D printing or woodwork.
What Is CAD? Meaning, Types & CAD Files Explained (2026)
CAD stands for computer-aided design. What it means, design vs drafting, the kinds of CAD software, what a CAD file is, and where AI now fits in.
What Is a DWG File? How to Open, Convert & Use It (2026)
A DWG is AutoCAD's native drawing file. What's inside, how to tell the version, how to open it free without AutoCAD, and how to convert to DXF or PDF.
Rebar Shop Drawings Explained (2026 Guide)
Rebar shop drawings are two documents, not one: a placing drawing and a bar bending schedule. What each holds, who prepares them, how to check them.
First Angle vs Third Angle Projection Explained (2026)
The reliable difference is the symbol on the sheet, not the country. What each method does to the view layout, how to read the cone, and what breaks.
What Are Shop Drawings? A Complete Guide (2026)
Shop drawings show a fabricator exactly how one component gets made. What goes on one, who prepares and approves it, and why they come back rejected.
Patent Drawings From a Photo: USPTO Rules (2026)
What 37 CFR 1.84 actually requires, why your CAD drawing is not a patent drawing, and how to get figures from a prototype photo.
Handrail and Guardrail Shop Drawings: Code to Cut File
Why a railing drawing carries two heights, what IBC and ADA actually require, and how a field measure becomes a DXF the shop can cut.
Sign Shop Drawings: Permit and Fabrication Sets (2026)
What a sign drawing needs to clear a permit and reach the router: height above grade, attachment, wind load and the electrical listing.
Structural Steel Shop Drawings: AISC 303 Rules (2026)
What a steel shop drawing must show: piece marks, the three AISC 303 connection options, and what approval does not cover.
JPG to DWG: Convert a Photo to a DWG File (2026)
Turn a JPG or photo into a DWG that AutoCAD opens clean. When a trace is enough, when to rebuild, and how to fix the scale before you send it.
Can AI Make Furniture Shop Drawings? We Tested It
We ran four real pieces through the pipeline, from a cabinet door to a chair. What AI got right, what it invented, and where a maker still steps in.
ChatGPT Prompts for AutoCAD: AutoLISP & Scripts (2026)
16 copy-paste ChatGPT prompts for AutoCAD: AutoLISP routines that draw, dimension and batch-edit, script files, debugging, and safety rules.
18 Grok Prompts for Technical Drawing (2026)
18 copy-paste Grok prompts for technical drawing: read drawings, plan views and GD&T, live-search standards, code DXF and AutoLISP, and more.
20 Claude Prompts for Technical Drawing (2026)
20 copy-paste Claude prompts for technical drawing: read drawing packs, plan views and GD&T, code real DXF files, drive CAD over MCP, and more.
How to Connect Claude to AutoCAD (MCP, 2026)
Wire Claude into AutoCAD over MCP: what Autodesk ships, what community servers add, the config that silently breaks it, and the work it still cannot do.
Image to 3D Model: Turn a Photo into 3D with AI (2026)
Turn a single photo into a real 3D model with AI. How image to 3D works, what you can export (GLB, OBJ, STL), and where a mesh beats and loses to CAD.
AI Image to CAD: Turn a Photo Into DWG or DXF (2026)
AI turns a photo into a picture, not a DWG. Here is how AI image to CAD actually works, what produces a real editable DXF, and where ChatGPT stops.
Scan to CAD: Convert Scanned Drawings to DWG (2026)
Turn a scanned paper drawing, an old blueprint or a legacy part into an editable DWG or DXF. When to trace, when to rebuild, and what stays accurate.
Photo to CAD: Convert a Picture to DWG or DXF (2026)
Turn a phone photo of a real part into a dimensioned CAD drawing. Export a clean DWG or DXF, scaled to real millimetres and ready to edit.
Can Claude Read CAD Files? DXF Yes, DWG No (2026)
We handed Claude a DXF, a DWG and a STEP file. Format by format: what it genuinely parses, what it quietly invents, and the free fix that makes a DWG readable.
Dimension Symbols on Engineering Drawings (2026)
Every dimension symbol explained: Ø, R, SR, chamfer, counterbore, countersink, depth, taper and thread callouts, with a chart and real drawing examples.
Image to DWG: Convert a Picture to a DWG File (2026)
Turn any image, picture or JPG into an editable DWG file. Compare tracers, converters and AI, and get a dimensioned DWG that AutoCAD opens clean.
Surface Finish Conversion Chart: Ra, Rz, RMS (2026)
Convert surface finish between Ra, Rz, RMS, microinches and N-grades, with a full chart, the common callouts decoded and the Ra each process gives.
How to Sell DXF Files Online (2026 Guide)
Where to sell DXF files online, how to price and license them, and the file prep that stops refunds. A practical 2026 guide for makers.
18 Gemini Prompts for Technical Drawing (2026)
18 copy-paste Gemini prompts for technical drawing: read a drawing, plan views, dimensions, GD&T, code and DXF, plus where Gemini stops.
How to Open a DXF File (Free, 2026): 6 Ways
Open a DXF file free in your browser or desktop, on Windows, Mac or phone. Which free tools just view, which let you edit, and how to fix errors.
Why Your DXF Won't Cut: Open Paths & Gaps Fixed
A DXF that opens but won't cut is almost always open contours, gaps or doubled lines. Find each fault and get clean closed loops that actually cut.
Make a Gasket DXF From a Photo (Cut-Ready, 2026)
Turn a photo of an old gasket into a cut-ready DXF for laser or waterjet. The reference trick, bolt holes, and the mistakes that ruin the fit.
Can Gemini Make Technical Drawings? Read vs Draw
Gemini reads and reviews a drawing better than any chatbot, but it still can't output a to-scale, dimensioned DXF. The honest line between the two.
Can Claude Make CAD Files? It Scripts Them, Can't Draw
Claude scripts OpenSCAD and drives Fusion 360 over MCP, and reads a DXF you paste in. What it cannot do is measure a real part or draw a dimensioned view.
JPG to CAD: Convert a Picture to DXF or DWG Free (2026)
Convert a JPG to DXF or DWG in your browser. Why JPEG compression halos trace as fake geometry, how to avoid them, and how to give the drawing a real size.
Image to AutoCAD: Convert a Photo to DWG/DXF Free (2026)
Turn a photo, JPG, PNG or scan into an editable AutoCAD drawing. Trace it, vectorize to DXF, or rebuild a dimensioned DWG with real sizes, ready to edit.
PDF to DXF: Convert a PDF Drawing to CAD (2026)
PDF to DXF the right way: pull real geometry from a vector PDF, trace a scanned one, dodge the scale trap, and get a DXF a shop can cut.
Surface Finish Symbols: Ra, Rz & the Machining Symbol
How to read surface finish symbols on a drawing: what Ra 3.2 means, Ra vs Rz, the machining tick symbol, N grades and typical process values.
How to Read Tolerances on a Drawing: Limits, Fits & ±
What ±0.1, a limit dimension, ISO 2768 and a fit callout like ⌀13 H7/g6 mean, and how to read every tolerance on a drawing without guessing.
20 ChatGPT Prompts for CNC Machinists (2026)
20 copy-paste ChatGPT prompts for CNC machinists: decode the print, quote a job, dial in feeds and speeds, plan work-holding, and sanity-check G-code.
Make Plasma-Cutting DXF Files From a Photo or Sketch
Turn a photo or sketch of a flat steel part into a plasma-ready DXF: closed outlines in mm, why kerf and lead-ins belong in CAM, and how to import it.
AI Technical Drawing Examples: 3 Real Parts, Tested
We ran three real off-the-shelf parts through TechDraw AI and graded the drawings: what it nails, what it invents, and what still needs a human.
How to Get Dimensions From a Photo (the Reference Trick)
A photo has no size until you give it one. The reference trick to measure any object in a picture, the pixel math behind it, and how accurate it really is.
Sell Laser-Cut Files on Etsy: What Actually Sells
The market is not saturated, it is saturated with bad files. What sells, the formats buyers expect, the IP rule that closes shops, and what to charge.
Photo to Glowforge or xTool: a Cut File That Cuts
Glowforge and xTool want SVG with closed paths, not DXF. Turning a photo or logo into one, the colour rules for cut, score and engrave, and where it fails.
Why Your Traced Image Looks Jagged (and How to Fix It)
Auto-traced images come out jagged, with thousands of nodes and rough edges. Why it happens, and how to get a clean, smooth vector for laser or CNC.
How to Convert a Logo to a Vector for Laser Engraving
Turn a PNG or JPG logo into a clean vector a laser can engrave or cut: prep to black and white, trace to DXF or SVG, clean paths, and set the size right.
DXF Imports at the Wrong Size? Here's How to Fix It
Why a DXF imports 25.4× too small or too big, what actually causes it, and how to fix the scale fast in any laser or CAM software.
How to Turn a Hand Sketch into a CNC-Ready DXF File
A step-by-step workflow for turning a paper sketch into a clean, CNC-ready DXF: how to photograph it, trace it to vectors, fix the scale, and hand it off.
Best AI Tools to Turn a Floor Plan Into a Render (2026)
We tested 11 AI tools that turn a floor plan, sketch or photo of a room into a finished render. Which fits your starting point, the cost, and the limits.
Make Money on Fiverr With CAD Drawings: The Real Math
Image-to-CAD and technical-drawing gigs on Fiverr sell for $5 to $100. The real numbers behind the side hustle, and how AI cuts days to minutes.
How to Reverse Engineer a Part Without the Original Drawing
How to reverse engineer a part with no original drawing: the methods compared, and how AI turns a photo of the part into a dimensioned drawing in minutes.
Technical Drawing Software: Top 5 Tested (2026)
The technical drawing software shops actually use in 2026: AutoCAD, TechDraw AI, SolidWorks, Fusion 360, Onshape and free picks, priced and rated.
20 ChatGPT Prompts for Technical Drawing (2026)
20 copy-paste ChatGPT prompts for technical drawing: planning views, dimensioning, tolerances, GD&T, title blocks, SVG and DXF, plus where it stops.
Best JPG to DXF Converters: 10 Tools Compared (2026)
Most JPG to DXF tools just trace pixels into a sizeless outline. We rank the 10 best by output, dimensions, scale, price and the job each fits.
GD&T Symbols Chart: All 14, and What Each One Means
All 14 GD&T symbols in one chart with plain meanings, plus the dimensioning symbols on every drawing: feature control frames, datums and modifiers.
Image to CAD: Convert a Photo to DXF or DWG Free (2026)
Convert an image to DXF or DWG in your browser. What is actually measurable in a raster, what a shop can build from, and the one measurement you must supply.
Can ChatGPT Make Technical Drawings? Not Ones You Can Cut
One prompt, run twice: an 80 mm L-bracket with two 8 mm holes came back with different numbers each time. What ChatGPT is good for, and what it fakes.
Best AI Technical Drawing Tools in 2026: 8 Tools, 5 Jobs
The best AI for technical and engineering drawings, split by job: text-to-CAD, drawing automation, review and OCR, style filters and photo-to-drawing.
Furniture Shop Drawings: The Complete Guide for Makers
What a furniture shop drawing must include, how to make one step by step, the cut-list and joinery tricks pros use, and the mistakes that cause remakes.
Which CAD File to Send a Shop: DXF, DWG, STEP or PDF
One table, four processes: what a laser, a CNC mill, a sheet-metal shop and a 3D printer each need — and the format that quietly stalls a quote.
How to Dimension a Technical Drawing: 8 Pro Rules
Eight rules for dimensioning a technical drawing a shop can build: dimension for function, never twice, baseline vs chain, datums and tolerances.
How to Read a Technical Drawing: A Visual Beginner's Guide
A technical drawing is an instruction set, not decoration. The exact order to read one: title block, views, projection, dimensions, tolerances and symbols.
From Photo to Technical Drawing: What AI Can Do (2026)
AI turns a photo of a part into editable CAD, but one photo can't give its true size. Where the tech stands, and the workflow that fixes it.