Free Making & Fabrication Tools

These tools are for makers, machinists and fabricators working with printers, lasers, CNC routers and metal. Preview files, price a print, look up a tap drill or get a starting laser setting. Files stay on your device, so nothing is uploaded.

17 free tools 4 groups Runs in your browser Nothing uploaded

3D Printing

5 tools

Inspect files, estimate weight and cost, and set resin exposure.

  • 3D Printing

    STL File Viewer & Dimension Inspector

    Drop an STL file to see bounding box dimensions, volume, and surface area in a live WebGL 3D viewer. Drag to rotate, scroll to zoom.

    Volume + printer fit check
  • 3D Printing / CNC

    G-code Previewer & Layer Inspector

    Drop a G-code file and scrub through it layer by layer. Color-coded by feature type with print time and filament estimates.

    Layer scrubber + feature colors
  • 3D Printing Hobbyists

    3D Print Filament Cost Calculator

    Enter filament grams used, spool price, electricity, and machine depreciation to get full COGS and suggested selling prices.

    Material + electricity + depreciation COGS
  • 3D Printing Hobbyists / Etsy Sellers

    3D Print Weight & Material Cost Calculator

    Enter bounding box dimensions, infill, and shell count to get estimated weight and material cost before slicing. PLA, PETG, ABS, ASA, TPU, Nylon.

    Pre-slicer weight + cost estimate + infill breakdown
  • MSLA / DLP Resin Printers

    Resin 3D Print Exposure Calculator

    Select your printer and resin type, set your layer height, and get normal and bottom exposure times, lift speed, and RERF test guide.

    Exposure times + lift speed + RERF guide

Laser & CNC

4 tools

Vector conversion, starting settings, cutting parameters and thread drills.

  • Laser Cutting

    SVG to DXF Converter

    Free online SVG to DXF converter for Glowforge, xTool, Atomstack, and CNC routers. Live vector preview, scale to exact millimetres. No Inkscape, nothing uploaded.

    Scale to mm
  • Maker / DIY

    Laser Engraver Settings Finder

    Select your laser wattage and material to get starting speed, power, and pass count for wood, acrylic, leather, slate, and more.

    Speed + power + passes + material library
  • CNC Machinists / Makers

    CNC Feeds & Speeds Calculator

    Enter cutter diameter, flute count, and material to get recommended RPM, feed rate, and chip load. Deflection risk, surface finish estimate.

    RPM + feed rate + chip load + deflection risk
  • Machinists / Makers

    Tap Drill Size Calculator

    Search M3, M6, 1/4-20 UNC and get tap drill size, clearance drill, and thread engagement percentage.

    Metric + UNC/UNF + engagement %

Metalworking

4 tools

Bending, welding, hardness and forging temperature.

  • Fabricators / Makers

    Sheet Metal Bend Calculator

    Enter thickness, bend radius, angle, and K-factor to get flat blank length for multi-bend parts. mm and inches.

    BA · BD · K-factor · multi-bend
  • Welders / Fabricators

    Welding Amperage Calculator

    Enter material, thickness, and joint type to get recommended amperage range, wire feed speed, and shielding gas. Position adjustments included.

    Amps + wire speed + position adjustment
  • Machinists / Materials Engineers

    Metal Hardness Conversion Calculator

    Enter HRC, HRB, Vickers HV, or Brinell HB to get all equivalents and approximate tensile strength. ASTM E140 based.

    HRC, HRB, HV, HB, Shore D + UTS estimate
  • Blacksmiths

    Forge Temperature Calculator by Steel Type

    Select your steel and see the recommended heat-colour forging range plus a full heat colour chart.

    Recommended forging range by steel type

Finishing & Workshop

4 tools

Coatings, compressed air and stock cutting.

  • Custom Fabricators / Automotive / Makers

    Powder Coating Coverage Calculator

    Enter surface area, coating thickness, and application method to get powder weight needed with waste factor and cost estimate.

    Powder kg + transfer efficiency + cost per m2
  • DIY / Automotive / Crafters

    Spray Paint & Aerosol Coverage Calculator

    Enter surface area, number of coats, and can size to get the number of aerosol cans needed. Technique overspray adjustment.

    Can count + overspray + coats + technique
  • Tradespeople / Makers / Workshops

    Air Compressor Fill Time Calculator

    Enter pump CFM, tank volume, and pressure range to get fill time and tool demand verdict.

    Fill time + duty cycle + tool demand verdict
  • Woodworkers & Metalworkers

    Linear Cut List Optimizer

    Enter stock length, saw kerf, and your piece list to pack cuts into the fewest stock pieces with a visual layout and waste %.

    FFD packing + kerf + waste %

Which tool do I need?

Making & Fabrication FAQ

How do I estimate the cost of a 3D print?

Enter the filament grams used, the spool price, electricity and machine depreciation into the filament cost calculator. It returns the full cost and suggested selling prices.

How do I calculate feeds and speeds for a CNC router?

Enter the cutter diameter, flute count and material. The CNC feeds and speeds calculator returns RPM, feed rate and chip load, plus a deflection risk and a surface finish estimate.

How is a sheet metal flat blank calculated?

The sheet metal bend calculator takes thickness, bend radius, angle and K-factor. It returns the flat blank length for parts with multiple bends, in mm or inches.

How do I convert an SVG for a laser cutter?

The SVG to DXF converter shows a live vector preview and scales the drawing to exact millimetres for machines such as Glowforge, xTool and Atomstack, and for CNC routers.

How do I find the right tap drill?

Search for a thread such as M6 or 1/4-20 UNC in the tap drill calculator. It returns the tap drill size, the clearance drill and the thread engagement percentage.

Are my STL and G-code files uploaded?

No. The viewers and converters process files in your browser, so they stay on your device.

Last updated: September 30, 2026