Manufacturing / Rapid prototyping
Rapid prototyping in Bangalore
Print Forge builds prototypes in Bengaluru (Bangalore) by 3D printing, CNC machining and sheet metal, and carries the same design into low-volume and production runs, including injection moulding. There is no minimum order: a single prototype is a normal job. The aim is to learn what you need from each build, then move to production without redesigning from scratch.
- from 1 business dayPrinted prototypes
- from 5 business daysMachined prototypes
- noneMinimum order
- within 24 h of a complete briefQuote
What should your prototype prove?
Choose the route by the question the prototype has to answer, not by habit.
- Looks-like models check size, ergonomics and appearance. Surface quality matters more than material.
- Fit models check assembly, clearances and fastener access. Dimensional accuracy on the mating features matters most.
- Works-like prototypes carry real loads, heat or fluids. They need the target material, or a material with known relevant properties, and a build direction chosen around the load.
- Production-intent parts use the production material and process, so test results carry over to the released design.
A fit check in a general-purpose resin says little about a PEEK part at temperature. Where a prototype has to prove function, build it in the engineering polymer you plan to use: PEEK, PEKK or PEI.
Choosing a rapid prototyping process
| Process | Suits | Consider |
|---|---|---|
| FDM (material extrusion) | Functional parts in engineering polymers, including PEEK, PEKK and ULTEM | Visible layer lines; strength varies with build direction |
| SLA (stereolithography) | Fine detail and smooth surfaces for appearance and fit models | Resin properties differ from production thermoplastics |
| SLS and MJF (powder bed) | Complex geometry and internal features without support structures | Slightly textured surface; powder must be cleared from internal channels |
| Metal and ceramic printing | Prototypes that must be metal or ceramic | Discuss material and finishing in the brief |
| CNC machining | Production-representative material and tight interfaces | Tool access limits internal geometry |
| Sheet metal | Enclosures, brackets and panels | Bend radii and flat-pattern layout drive the design |
| Injection moulding | Moulded-material properties and larger quantities | Tooling suits volumes that justify it |
Starting capabilities by route
| Route | Tolerance | Lead time or volume |
|---|---|---|
| 3D printing (FDM, SLA, SLS, MJF) | ±0.3% (minimum ±0.3 mm) | from 1 business day |
| CNC machining | to ±0.020 mm | from 5 business days |
| Sheet metal | to ±0.1 mm | from 5 business days |
| Injection moulding | set in the quotation | 1 to 1,000,000 parts |
These are starting capabilities. Geometry, material, quantity and finishing determine the final tolerances and lead time in the quotation.
Design for additive manufacturing and iteration
Design for additive manufacturing (DfAM) reworks a part so it prints well: orientation chosen around the load, uniform walls, self-supporting angles, and machining stock only where an interface needs it. Generative design and lattice structures can remove material where the load path allows. Each iteration goes faster if you keep a revision number on every file, record what each build was meant to test, and measure the critical features against the drawing before changing the design.
Our design-review checklist covers the load case, geometry, material, inspection and next steps in one page.
From prototype to production
A printed prototype can become a low-volume production part, with machined interfaces where the tolerance calls for it. When volumes justify tooling, injection moulding takes over. Decisions made early make that step easier: add draft to walls that will be moulded, keep sections uniform, and avoid undercuts that need complex tooling. Tell us the expected production volume at the prototype stage, even if it is uncertain.
What to send for a prototype quote
- CAD: STEP or IGES for design review and quoting; STL or 3MF if you only have print-ready mesh geometry.
- A PDF drawing with units, revision, datums, the critical dimensions and their tolerances, threads and fits.
- Purpose: what the prototype must prove (appearance, fit, function or production intent) and how it will be tested.
- Material: the production material if known, or the conditions the part must survive.
- Quantity and timing: the first batch, expected repeat volumes and a target delivery date.
- Inspection and documents: whether you need a dimensional inspection report, material traceability or other records.
- Confidential designs: tick discuss an NDA before sharing files in the quote form. You can start the conversation without attaching CAD.
Quotes are returned within 24 hours of a complete brief. The design-review checklist lists the questions an engineering review will ask.
Frequently asked questions
How fast can I get a prototype in Bangalore?
Printed parts start from 1 business day and CNC machined parts from 5 business days. Quotes are returned within 24 hours of a complete brief. Geometry, material, quantity and finishing determine the final tolerances and lead time in the quotation.
Is there a minimum order quantity?
No. Single prototypes and low-volume production are both normal jobs. Injection moulding covers 1 to 1,000,000 parts once volumes justify tooling.
Which process should I choose for my prototype?
Describe what the prototype has to prove and how it will be tested. In the quote form you can choose a process or select Recommend a process, and the engineering review will propose a route.
Can we agree an NDA before I share files?
You can ask for one. Tick the option to discuss an NDA before sharing files in the quote form, and start the conversation without attaching CAD.
Start a project
Start a prototype
Send what you have: a STEP file, a sketch or an existing part that needs to do more. The quotation proposes a route, price and lead time.
Start a project brief info@printforge.co.in+91 98441 14767