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Design, Build,
Automate.

A Sri Lankan engineering consultancy — reverse engineering, 3D scanning, 3D printing, CAD design, laser cutting and PLC automation, serving Colombo and island-wide.

MechaCAD Solutions is based at 368, Siyambalape North, Siyambalape.

Bring us a problem. We engineer the solution.

  1. 01

    Bring us the problem

    Want to design a machine? Automate one? Need a CAD file for a part that doesn't have one? A part that failed, or a process still done by hand? You don't need a drawing or a file to start.

  2. 02

    We propose the engineering solution

    We work out which route actually solves it — automate, scan, redesign, print or cut — and come back with the approach, a fixed price and a lead time.

  3. 03

    We deliver it, and support it

    Parts, systems or CAD files, delivered island-wide and commissioned on site where the job needs it. The model stays on file, so a repeat order is a reprint.

Process, per service

Six services. Six different runs of work.

Pick the one that matches your problem and see exactly what happens, in order, from the moment we have your part, your file, or just your problem.
Choose a service to see its workflow

PLC automation

Industrial control

A genuinely separate service from the others here — it starts on your factory floor, not on a bench.

  1. 01

    Site visit and problem study

    What the process does now, where it stops, and what it costs when it stops.

  2. 02

    Confirm the budget

    What's available to spend, agreed before any hardware is specified — the platform and panel design that follow are built to fit it, not the other way round.

  3. 03

    Select components

    PLC, HMI, servo motors, sensors and the wiring schedule — chosen for the platform already on site, or specified fresh for the job.

  4. 04

    PLC programming

    Ladder logic written for the platform already on site or specified for the job.

    Mitsubishi · Omron · Delta · Siemens · other major platforms

  5. 05

    Panel building and wiring

    Built and wired to the design before anything goes near your equipment.

  6. 06

    Installation and commissioning

    On site, on your equipment.

  7. 07

    Handover, training and support

    The operators who run it are trained on it before we leave.

You end up withA commissioned control system, running your process, with an operator trained on it.

3D scanning

20 microns

Turns a physical object into measured digital geometry. On its own it produces a mesh — a mesh is not yet an editable CAD model.

  1. 01

    Prepare the part

    Matt spray applied to shiny, dark or transparent surfaces; reference markers placed where the geometry needs them.

  2. 02

    Scan

    Captured on the bench or on site, as a point cloud, using industrial-grade equipment.

    20 µm accuracy

  3. 03

    Align and merge

    Multiple scan passes are registered together into one complete dataset.

  4. 04

    Process the mesh

    Noise is removed and holes are closed until the mesh is watertight.

    STL · OBJ

  5. 05

    Deliver, or continue to reverse engineering

    A mesh is enough for printing, archiving or inspection. An editable model with real features and tolerances is a separate step — reverse engineering, not scanning.

You end up withA mesh file (STL/OBJ), or a CAD exchange file if the geometry is simple enough.

3D printing

FDM & SLA

From an idea, a sketch or a file, to a finished printed part.

  1. 01

    Your idea, sketch or file

    A hand sketch, a 2D drawing, a photograph of the part, or a model you already have.

  2. 02

    CAD model

    Modelled from scratch where none exists, or your file checked and repaired until it is genuinely printable.

  3. 03

    Process and material chosen

    FDM or SLA, then the material picked for the load, the heat and the finish the part has to survive.

  4. 04

    Print preparation

    Orientation, wall thickness, infill and support strategy set for strength, not only for speed.

  5. 05

    Print

    One-off, small batch, or a repeat production run.

  6. 06

    Post-processIf needed

    Support removal, wash and cure for SLA parts, then sanding, painting or assembly where the job needs it.

  7. 07

    Check and hand over

    Measured against the model, then delivered island-wide.

You end up withA printed part — one-off, a short batch, or a repeat production run.

Reverse engineering

0.02 mm

Starts with the physical part, however damaged, and ends with a manufactured replacement.

  1. 01

    Capture the original

    The part is scanned, and hand-measured wherever a datum matters more than a surface.

    To 0.02 mm

  2. 02

    Align to datums

    The scan is oriented to real reference planes and axes, not whatever angle it was captured at.

  3. 03

    Rebuild as CAD

    Features are rebuilt parametrically in SolidWorks from the scan — not traced over the mesh as a fixed shape.

    SolidWorks

  4. 04

    Reconstruct what's missing

    Cracks, worn faces and broken corners are rebuilt to the geometry the part had when it was new.

  5. 05

    Deviation analysis

    The rebuilt model is overlaid on the captured scan and checked point by point, so any drift from the real geometry is caught and corrected before the model is treated as finished.

  6. 06

    Verify fit

    Checked against the mating parts and the assembly it belongs to, before anything is manufactured.

  7. 07

    Manufacture or hand over the files

    3D printed, laser cut, or supplied as STEP, STL and IGES for your own manufacturer.

    STEP · STL · IGES

You end up withA manufactured replacement part, plus the CAD files it was built from.

CAD design

STEP / STL / IGES

From a brief — a sketch, a broken part, or a problem with no drawing yet — to manufacture-ready files.

  1. 01

    Brief

    What the part has to do, what it has to fit, and the loads and environment it works in.

  2. 02

    Concept

    Layout options, sizes and constraints agreed before detail work starts.

  3. 03

    3D modelling

    Parts and assemblies modelled in SolidWorks, with motion checked wherever things move.

    SolidWorks

  4. 04

    Design for manufacture

    Geometry adjusted for the process actually being used — printing, laser cutting or machining.

  5. 05

    2D manufacturing drawingsIf needed

    Dimensioned, with tolerances called out where they matter.

  6. 06

    Prototype and reviseIf needed

    A physical part in hand, then the model updated from what it taught us.

  7. 07

    Release

    Delivered as STEP, IGES, STL, DXF and native SolidWorks files.

    STEP · IGES · STL · DXF

You end up with3D models and manufacture-ready files: STEP, IGES, STL, DXF and native SolidWorks.

Laser cutting

Fibre & CO₂

From artwork or a drawing to a cut, engraved and finished piece.

  1. 01

    Artwork or drawing

    DXF, DWG or vector artwork. A raster logo is redrawn first; we can also draw from a sample part.

  2. 02

    Confirm material and thickness

    Which laser suits the job, and whether the thickness is cuttable.

  3. 03

    Nest the job

    Parts laid out across the sheet to keep material cost down.

  4. 04

    Cut

    Profiles cut to drawing.

  5. 05

    Engrave and markIf needed

    Permanent lettering, artwork or part numbers, where the job needs them.

  6. 06

    Deburr and finish

    Edges cleaned; bending or fabrication where the part needs it.

  7. 07

    Check and hand over

    Checked against the drawing before collection or delivery.

You end up withCut and/or engraved parts, ready to use or ready to finish.

A specialty, not a sideline

When the manufacturer stopped making it, we remake it.

Old and imported vehicles run out of parts long before they run out of road. We scan the original, rebuild it as a CAD model, and 3D print or laser cut a replacement that fits and works like the real part — for brackets, clips and housings no dealer can order any more.

13

Vehicle parts delivered

Work delivered for

  • Lalan RubberProduction order
  • OrisCustom enclosure
  • IEEE Curtin University ColomboEngraved award set
  • Aura XProduct development

Building toward full-scale manufacturing.

The services below are running today. The fibre laser has a confirmed month. Everything after it is the direction the workshop is growing in, not a service you can book yet.

Available now

  • Reverse engineering
  • 3D scanning
  • CAD design
  • 3D printing
  • Laser cutting
  • PLC automation

Coming December 2026

Fibre laser cutting

A dedicated fibre laser adds thicker sheet metal and faster cut times to the laser cutting service already running.

Future expansion

  • CNC milling
  • CNC turning
  • Sheet metal bending
  • Fabrication
  • Custom machine building
  • Full-scale manufacturing

What clients say

34 reviews
on Google

Left by clients on our Google Business Profile.

  • Tharusha Fernando

    5 out of 5

    I had some parts 3D printed from this service, and I'm really satisfied with the overall experience. The service was excellent, and the person was very friendly and easy to communicate with. The print quality was also very good, with clean and accurate results. Highly recommended for anyone looking for reliable 3D printing!

    3 months ago · Google

  • Chathuranga Wijesinghe

    5 out of 5

    I placed a custom order for these mechanical parts and the quality is outstanding. The prints are clean, strong, and the dimensions are exactly as requested. It's clear they take pride in their work. I'm very satisfied with how these turned out.

    4 months ago · Google

  • Ranidu Buddiesha

    5 out of 5

    Very satisfying service and highly recommended for anyone who are searching for 3D printing of broken parts. Specially a considerable load applying hinge like this (equatorial mount telescope tripod) also could manufacture by the help of them, more than the quality we expected. Very much appreciated and thanking you!

    4 months ago · Google

Questions we get asked.

We have an engineering problem, not really a broken part — can you still help?

Yes — that is most of what we do. Tell us the problem: a process still done by hand, a machine that keeps stopping, a product that only exists as an idea. We work out which of our services actually solves it and come back with the approach, not just a price for a part.

Can you remake a part that is no longer sold?

That is most of what we do. Bring the original, even in pieces. We scan it, rebuild it as a CAD model, and manufacture the replacement. The model stays on file, so if you need another one later it is a reprint rather than a fresh job.

How accurate is the scanning?

Up to 0.02 mm, which is 20 microns, using industrial-grade scanners. That is fine enough for mating faces, bolt patterns and press fits. Tell us which surfaces have to fit and we will tell you honestly whether the process suits the part.

What files do you accept, and what do you give back?

Send STEP, STL or IGES. If you have no file at all, send the part instead. You receive CAD-ready files in the same formats, so the design is yours to take to any manufacturer afterwards.

What's the difference between FDM and SLA 3D printing?

FDM is stronger, prints larger parts, and costs less per part — the right choice for most functional parts and production runs. SLA is finer and smoother, with sharper detail, but is more brittle and more limited in size. Tell us what the part has to do and we will recommend the process.

Do you cut metal?

A dedicated fibre laser for sheet metal is confirmed for December 2026, adding thicker material and faster cut times to the laser cutting service already running. We also cut and engrave acrylic and wood today. If your job needs metal cut before December 2026, tell us the material and thickness and we will confirm what's possible now.

Do you handle the electrical and control side too?

Yes. We build PLC-based control systems — on Mitsubishi, Omron, Delta and other major platforms — alongside the mechanical work, so the panel and the machine are designed together rather than handed between two contractors.

Where are you, and do you deliver?

The workshop is in Siyambalape, roughly forty minutes from Colombo. You can drop parts off and collect them, or we deliver island-wide.

Bring us the problem.

A part, a process, or just an idea. Tell us the situation and we will tell you the engineering route to solving it — honestly, even if that route isn't us.

MechaCAD Solutions, 368, Siyambalape North, Siyambalape 11607, Sri Lanka