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140+ online tools for 3D printing
Calculators, choice helpers, configurators and defect diagnostics, all in one place. Log in to use them.
EDi Assistants
AI assistants answering questions on manufacturing, materials and pricing.
Log in freeAI Configurator
Describe what you need and get a technology, material and settings suggestion.
Open nowAM Organizer
Parametric bins, baseplates, wall systems and 5S organizers for the workshop: print-ready STL/3MF.
Log in — ProBarcode Generator
Generate EAN-13, EAN-8, CODE 128, UPC-A, CODE 39 or ITF-14 barcodes online.
Open nowGross-Net Calculator 2026
Compute net salary, social contributions and tax for Bulgaria 2026 in euro.
Open nowPrices Under the Lens
Comparison of contracting authorities from the official public procurement register.
Open nowCo-Factory
Shared production environment for joint orders and capacity.
Open nowMaterial Comparison
Compare PLA, PETG, ABS, TPU and dozens of other filaments
Open nowSoftware Comparison
Cura, PrusaSlicer, OrcaSlicer, Bambu Studio: features and prices
Open now3D Printing Failure Detective
Upload a failed print photo and get a diagnosis with concrete fixes.
Open now3D Farm Builder
Plan a printer farm: layout, capacity and running costs.
Open nowCompany Profile
Assess your company's financial health and funding readiness.
Log in — ProInvoices
Invoice, proforma, credit and debit note as PDF; calculates social insurance and advance tax.
Open nowJigsaw Generator
Turn a photo into printable/cuttable jigsaw templates (STL/3MF/OBJ/SVG) for 3D printing and laser/Cricut
Log in — ProKanban Labels
Create and print Kanban cards: title, category, priority and due date.
Open nowLattice & Topology
Turn any STL/STEP model into a lightweight lattice (gyroid/TPMS/struts) with FEA stress-adaptive density. Topology optimization: experimental.
Log in — ProMaterial Selector
Material recommendations based on application and requirements
Log in freeMedia Finance Radar
Who funds Bulgarian media, based on declarations under art. 7a.
Open nowModel Platforms
Catalog of 3D model platforms (Thingiverse, Printables, MakerWorld and more)
Log in freeScientific Calculator
Trigonometry, logarithms and roots plus a converter for 8 unit categories.
Open nowMunicipal Radar
Compare municipalities by indicators from the official procurement register.
Open nowHealth Radar
What the national health fund paid each hospital, 2015 to 2026, from its own reports. Search by hospital, break down by year and payment type.
Open nowPeriodic Table
Interactive table of all 118 elements with Bulgarian names and IUPAC atomic masses.
Open nowFix It at Home
Step-by-step diagnosis of a broken item and how to repair it.
Open nowPrice Calculator
Cost calculation by technology: material + time + depreciation
Open nowPrinter Wizard
Wizard for selecting a 3D printer based on budget and needs
Log in freePrototyping Checklist
Checklist for the prototyping process: from sketch to iteration
Open nowQR Generator
Create a QR code for a link, text, WiFi or menu with size and colour options.
Open nowSlicer Translator
Translate settings between different slicer programs.
Open nowSliceAGENT (Slicer Reference)
Reference for all slicer parameters + AI assistant
Open nowSlicer Visualizer
Visual reference of 50+ slicer settings: what each does, how it affects prints, recommended values
Open nowTechnology Selector
Wizard for selecting the right 3D technology for your use case
Log in freeTroubleshooter (AI)
AI diagnosis of print problems: upload photo, get solution
Log in freeEDi Business Advisor (AI)
Niches, prices and running costs for manufacturing services in Bulgaria, with the sums shown.
Log in freeEDi DFAM Review (AI)
Check the model BEFORE you start the print: walls, overhangs, a broken mesh.
Log in freeEDi Diagnostician (AI)
Photograph the failed print: the assistant tells you what it is and how to fix it.
Log in freeEDi Electronics Helper (AI)
Components, circuits and calculations, with the formula behind every number.
Log in freeEDi Engineer Reference (AI)
Engineering answers with a citation to the rule, not opinions from a forum.
Log in freeEDi Classroom (AI)
Ready lessons, assignments and tests on manufacturing technologies: 5 minutes, not an evening.
Log in freeEDi Constructor (AI)
Describe the part with dimensions: it models it, checks itself and hands you a finished STL.
Log in freeEDi Copywriter (AI)
The listing that sells: in a minute, in two languages, with the facts right.
Log in freeEDi Mentor (AI)
Your personal teacher: explains it simply, then tests you with one question.
Log in freeEDi Slicer Tuner (AI)
Name the printer, material and goal: get a full profile with a reason for every value.
Log in freeEDi Quote (AI)
Upload the customer's STL: get a ready quotation draft with the sums shown.
Log in freeEDi Process Advisor (AI)
The right process for your part: 3D printing, CNC, laser, casting or sheet metal.
Log in freeAI writer
Rewrites and tidies up text to 4000 characters: listings, descriptions, instructions.
Open nowEduBuilder 3D
Draw or place a shape and turn it into a 3D model, directly in the browser.
Open nowBarcode → 3D
An EAN-13 barcode as a printable 3D model, for labels and nameplates.
Open nowGross ↔ Net 2026
Gross to net and back for 2026 in euro, with social security contributions and tax shown separately.
Open nowAdvance Tax Calculator
Quarterly advance tax for freelance income in Bulgaria: 10% after the statutory expense allowance and your own contributions.
Open nowInsurance Calculator
Social and health insurance for the self-employed in Bulgaria 2026, split by fund, with the floor and ceiling applied.
Open now2D CAM bridge
SVG and DXF both ways, plus G-code for laser and mill, with tool compensation.
Open now3D printing defects
Spot the defect by its symptom, see the cause and the exact fix.
Open nowDFAM design rules
A reference of the numeric design limits for additive manufacturing.
Open nowElectronics (parts & calculations)
Components and calculations, with the formula behind every number, from Ohm's law onward.
Open nowTrusses & beams
Trusses and beams: Warren, Pratt, Howe, scissor, arch, dome, cantilever, space frame.
Open nowFunction → 3D
A parametric surface from a formula and solids of revolution, straight into a printable model.
Open nowG-code Lego (processes)
Assemble G-code processes like Lego: serial printing, embed pauses, temperature towers, retraction tests, tunes, checked by the rules core.
Open nowPneumatics & hydraulics
Real CAD parts: pneumatic cylinders, SMC grippers, 5/2 valves.
Open nowToolkit, equipment
A ready list of tools and equipment by technology, level, activity and budget.
Open nowUniversal 3D converter
STL, OBJ, PLY, OFF, 3MF and GLB in every direction, plus units, scale and orientation.
Open nowWhich material do I need?
Which polymer you need: the trade-off between strength, temperature and price, shown.
Open nowFasteners: torque & holes
How much to tighten, what force that gives, and how deep to drive it, with the numbers.
Open nowBearings
Real bearings to DIN 625-1: pick a code from the 6000/6200/6300 series and get a model.
Open nowLev ↔ Euro
Currency conversion under Art. 13 of the Law on the Introduction of the Euro: the full rate and rounding to the third digit.
Open nowLinear motion
Real CAD parts for linear motion: ball screw pairs, linear guides, bearings.
Open nowRemove background
Removes the background from an image entirely in the browser and downloads it transparent.
Open now3D materials
60 materials in four categories: FDM filaments, resins, SLS powders and metals.
Open nowMachine mechanisms
Real mechanisms that transform motion: slider-crank, Scotch yoke, four-bar linkage, cam, Geneva mechanism and more. Adjustable components, 3D and STL.
Open nowMolecules & crystals
Molecules and crystals built from real bond lengths and angles, not copied.
Open nowMotors & actuators
Real CAD parts: NEMA 17/23 stepper motors, induction motors, actuators.
Open nowOrder 3D Printing
Upload an STL or 3MF and get a price: the file is calculated in your own browser.
Log in freeGear ratios & torque
Speed, torque and losses after each stage, with the starting torque and the inertia.
Open nowProfiles & Joints
Steel (IPE/HEA/HEB/UPN/L, EN 10365) plus aluminium T-slot Sigma profiles, a LEAN tube system and catalogue fittings: 3D, structural checks, STL/3MF export.
Open nowSprings
Parametric springs to DIN EN 13906 and DIN 2093: compression, extension, disc.
Open nowSheet metal unfold
Unfold a cylinder, cone, funnel, elbow, box and a rectangle-to-round transition.
Open nowLogo / Photo → 3D relief
An image to a printable 3D relief or lithophane, with the lights inverted.
Open nowFasteners
Real fasteners to DIN/ISO: type, size and length, to an adjustable 3D model.
Open nowTables & encodings
CSV, TSV, JSON, Markdown, SQL and HTML in every direction, with encoding repair.
Open nowAM technologies
An interactive reference of 19 additive processes, from FDM onward.
Open nowTolerances & fits
ISO 286: deviations in microns, clearance or interference, and the reverse problem.
Open nowHeat: walls & cooling
How much heat passes through the wall, and whether a surface defect will result.
Open nowVectorizer
A photo or logo to SVG and DXF with real contours, for laser, plotter and mill.
Open nowBiology 3D Model Generator
Generates a DNA helix, cell, virus, and bronchial tree from real biological proportions, right in your browser.
Open nowProcess Capability (Cp/Cpk)
Turns a run of measurements into Cp/Cpk and Pp/Ppk, with a confidence interval, not just a number.
Open nowDOCX & ODT converter
Converts DOCX and ODT into Markdown, HTML, text or PDF, detecting the format from file content.
Open nowElectrostatics and Magnetism
Draws field lines and equipotentials for multiple charges, plus wire, loop and solenoid fields.
Open nowFilament Weight & Spool Calculator
Calculates filament weight, length, and volume, and shows what's left on the spool.
Open nowGraphing Calculator
Plots Cartesian, parametric, and polar functions, then fits a regression line through your points with R².
Open nowLoan & Lease APR Calculator
Calculates the real APR on a loan or lease, every fee included, not just the rate.
Open nowMarketplace Payout Calculator
Works out your net payout after commission, payment fees, courier, and VAT for Etsy, eBay, and COD sales.
Open nowCyrillic OCR
Reads Cyrillic text from a photo or PDF into editable text, right in your browser.
Open nowRay Optics: Lenses, Mirrors & Prisms
Ray diagrams for lenses and mirrors, Snell's law, and prism deviation angles.
Open nowEuro Pallets (EUR/EPAL)
Builds a block pallet, EUR1, EUR2 or custom sizing, nine-block deck ready for STL/3MF.
Open nowPapercraft Unfolder
Unfolds an STL file or polyhedron into a papercraft net with numbered glue tabs and a scaled PDF.
Open nowBulgaria Business Days Calculator
Counts business days between two dates or adds N days ahead, using Bulgaria's official holidays and Orthodox Easter.
Open nowChemistry: Solutions & Stoichiometry
Calculates molar mass, balances equations, dilutes solutions, and finds pH.
Open nowTrue-Scale Print Templates
Prints grid paper and label sheets at true scale, with a 100 mm check line to verify after printing.
Open nowDocument Scanner
Squares up a phone photo of a document into a clean, true-size black-and-white PDF.
Open nowSolar System to Scale
Solar System model with separate size and distance scales, ready to print.
Open nowPhysics Constants & Formula Solver
16 SI constants and 17 physics formulas, each solvable for any unknown value.
Open nowImage Diff (Before/After)
Compares before/after photos with a pixel difference map in CIELAB, not RGB.
Open nowRacking & Shelving Configurator
Configures a beam pallet rack or a sheet-metal cubby cabinet to your dimensions, with load-path checks.
Open nowShrinkage Compensation
Works out the CAD size corrected for shrinkage in X/Y/Z; holes grow, not shrink, from presets or your own calibration.
Open nowSole Trader vs Ltd Take-Home Calculator
Compares take-home pay as sole trader vs Ltd at the same revenue, shown in threshold bands.
Open nowElectrical panel 3D (DIN)
Assembles a DIN rail electrical panel from real components, with printable adapters, rail, enclosure and a BOM.
Open now3D Printing Electricity Cost Calculator
Works out FDM and resin print electricity cost from your own tariff, split into heat-up and idle time.
Open nowVibrations and Waves
Simulates pendulum, spring, resonance, interference, and Doppler effect with exact physics, not textbook shortcuts.
Open nowColor Converter & Swatch Matcher
Converts colors between HEX, RGB, CMYK and LAB, matches the closest filament or RAL shade.
Open nowShaft Generator: Plain, Stepped & Splined
Builds a shaft to your dimensions: plain, stepped, or splined, with DIN keyway and retaining-ring grooves.
Open nowVideo & GIF to Animated WebP Converter
Trims a timelapse, screen recording, or GIF into a lightweight animated WebP, right in the browser.
Open nowWhat the basket costs
Consumer basket prices by product, retailer and store, from the Bulgarian consumer protection portal.
Open nowWhat wages are
Wages by region and over time, compared with Europe: nominal, in purchasing power standards and in constant prices. Plus how much of the gross figure actually reaches the bank account.
Open nowWhat electricity costs
What households pay for electricity compared with Europe, and what the price is made of: the regulated tariff and the observed average, kept apart.
Open nowHousing prices
The house price index for Bulgaria: nationally, by region and for the six largest cities, compared with Europe. An index, not a price per square metre.
Open nowFuel prices
How much of a litre is tax and how much is everything else, over time and against Europe. Plus a scenario calculator with the formula shown: not a forecast.
Open nowBanks and credit
What credit really costs and how to read the contract: APR, annuity, floating rates, with worked examples. Plus how many institutions are licensed to lend, per the BNB registers.
Open nowMilling CAM
Contour, circle or pocket to a finished program: depth passes, stepover, direction and entry. The wrapper comes from the post-processor.
Open nowMilling defects
Waviness, a burnt edge, out-of-tolerance size, a broken tool: ordered causes with a check and an action, sorted by machine, tool, fixturing and program.
Open nowLaser cutting defects
Incomplete cuts, dross, tapered edges, burn-through: causes sorted by layer (optics, gas, machine, program, material), because the fix differs for each.
Open nowNozzle and lens life
When to replace the consumable, by what signs, and how much delaying it costs. With nozzle diameter chosen against thickness.
Open nowLaser cut edge quality
Classification to ISO 9013 (perpendicularity and roughness), edge defect diagnosis and a concrete setting correction.
Open nowMilling quotation
Cost breakdown by line item and unit price across several batch sizes. Shows why the first part is expensive and the hundredth is not.
Open nowLaser cutting quotation
Price by cut length, number of pierces and sheet utilisation. Shows how much of the price is material and how much is machine time.
Open nowToolpath visualiser
Draws the toolpath from G-code: cutting, rapid travel, vertical plunges, and what each costs in time.
Open nowPost-processor configurator
Preamble and postamble for a specific controller. The generated code is read back and verified.
Open nowCNC program analyser
Reads milling G-code and tracks machine state: units, work offset, spindle, feed. Speeds and feed per tooth are checked against the rules core.
Open nowMachine test piece
The small part that checks the machine before the real one: squareness, backlash, repeatability. With a drawing and what to measure.
Open nowMilling tolerances
What tolerance is realistic on a standard machine, and how much each step up adds to the cost. With an ISO 2768 class and stack-up.
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