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Injection Molding Service

CNC Machining Service

Vacuum Casting Service

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A Perfect Way To Shape Your Idea With 3D Print Service

3D printing or additive manufacturing technology is the next-generation engineering technology that is shaping designing and manufacturing fields for a better tomorrow. It is an efficient tool for engineers, designers, hobbyists, and researchers to give a distinct shape to their ideas. 3D printing is a cost-effective and environmental-friendly technology that can produce any CAD files into 3D models. Zeal 3D Printing is proud to be a part of this revolutionary technology and one of the key players for 3D printing in Melbourne, Sydney, Brisbane, Perth, Tasmania, Canberra, and New Zealand.

We offer professional 3D printing services to a range of industry for creating:

  • Attractive architectural models
  • Functional and sturdy mechanical models
  • Eye-catching jewelry items
  • Electronic product prototypes
  • Prosthetic, & denture implants
  • Miniature models
  • Wearables
  • Electronic product prototypes

Our expertise

Being in the 3D printing industry for two decades, our expertise has surpassed all the benchmarks set by various industries. We are adept at:

  • CNC
  • Tool designing and making

We have been providing 3D printing service online in Australia to medical researchers, civil, mechanical, electrical and automotive designers and engineers, manufacturers, educationists, and hobbyists.

Our team of engineers and designers from various backgrounds are capable of enhancing any existing 3D CAD designs, building one as per your project requirements, and printing 3D models in more than 25 materials along with 3d printing steel.

Why choose us for 3D printing in Australia

3D printing or additive manufacturing technology is the next-generation engineering technology that is shaping designing and manufacturing fields for a better tomorrow. It is an efficient tool for engineers, designers, hobbyists, and researchers to give a distinct shape to their ideas. 3D printing is a cost-effective and environmental-friendly technology that can produce any CAD files into 3D models. Zeal 3D Printing is proud to be a part of this revolutionary technology and one of the key players for 3D printing in Perth, Melbourne, Sydney, Brisbane, Tasmania, Canberra, and New Zealand.

3D printing technology we use

Zeal 3D printing, you can get high-quality, cost-effective, and rapid prototyping services. We use FDM (Fused Deposition Modeling), and SLA (Stereolithography), and advanced 3D scanning and CAD technology for delivering realistic and functional products with complex geometries and intricate details. Along with these, we are also adept at offering PolyJet additive and 3d printing metal services. All these printing technologies can reduce time and cost for prototyping and final production.

Beginners Guide To 3D Printing

3D printing or additive manufacturing technologies have taken the world by storm. This kind of disruption was last seen during the advent of the Internet. 3d printing has gone beyond preparing decorative, and industries are leveraging this technology to simplify their long-haul traditional processes. Online 3d printing offers significant flexibility to businesses regardless of their industries to try and innovate new ideas. Be it creating a prototype or creative figurine, 3d print is a turnkey solution. Here is a beginner’s guide to how and why you should choose 3D printing services for your business today.

How to Prepare 3d Printing STL Files

3d printing technology is vast and anyone who wants to explore this technology needs to know the fundamentals. As there are many vital aspects of additive manufacturing, we will have a comprehensive look at 3D printing STL files and prepare them accurately. Whether you are a beginner at 3d printing or have already started reading more about it, these free beginners guide to 3D printing at Zeal3D will help you out. In this 3D printing free tutorial for beginners regarding the STL files, we will explore the essential aspects of the STL file format and its best practices. Whether you are starting out 3D printing or already doing it for a while, this guide will help you.

3d Printing STL Files

Frequently Asked Questions

3D printing, also called additive manufacturing, is a process in which an object is made from a three-dimensional CAD file by depositing materials in layers. 3D printing can be used to produce all types of products like aeroplane parts, medical implants, artificial organs, novelty items, toys, sculptures, 3D figurines and much more. 

There are several types of 3D printing - stereolithography (SLA), fused deposition modeling (FDM), selective laser sintering (SLS), digital light processing (DLP), multijet fusion (MJF), polyjet, direct metal laser sintering (DMLS), electron beam melting (EBM). Sometimes, rapid prototyping is confused with 3D printing techniques. But rapid prototyping is an application of 3D printing, which involves prototyping a part from a CAD file or better put as 3D printing is the process and rapid prototyping is the end result. 

Based on the type of material, durability, surface finish, speed and cost, the 3D printing type is selected. 

The process of 3D printing involves three steps: 

  1. 3D modeling software: The object is designed with intricate details in the 3D model using CAD software. The software has the ability to allow for the tiniest, and precision designs. The CAD file is then converted into STL format. 
  2. Slicing the model: Next, the model is sliced into hundreds or thousands of layers with a slicing software and sent off to the 3D printer via USB, WiFi or SD. 
  3. Final process: In a 3D printer, a nozzle moves back and forth while dispensing the material layer-by-layer waiting for a layer to dry before adding the next. 

3D printers are extremely flexible, accurate and fast to print rigid materials, and even strong industrial products. 

Rapid prototyping is a process of fast fabricating or modeling or assembling a physical part using 3D CAD. The part is then manufactured using additive manufacturing technique or 3D printing. Rapid prototyping is highly beneficial for designers to visualize, design and develop the product before it goes for mass production. There are two types of prototypes - high fidelity where the design matches the projected end product, and low fidelity where the design does not exactly match with the end product. 

Rapid manufacturing means the use of software and equipment to accelerate the manufacturing process. It is a broader term that encompasses moulding, CNC machining, vacuum casting, rapid tooling and more. With the help of various 3D printing techniques like selective laser sintering, stereolithography, laser melting, high resolution 3D objects can be created from CAD data. 

3D printing offers a range of benefits which include:

Reduced wastage: 3D printing uses only the amount of material required for a particular part, thus making it more economical. 

Strong and lightweight part: Plastic which is known best to produce lighter parts is one the widely used material. This is especially beneficial for aerospace and automotive industries that use lighter parts for fuel efficiency. 

Better design complexity: 3D printing gives better design freedom to design and print complex geometries without any restrictions. 

Speed, flexibility and customization: It is fast without having to create moulds like in the traditional process. Parts can be customized for mass production and printed on demand as the 3D design files are stored in virtual libraries. They can be edited any time saving costs on wastage and inventories.  

A lot of industries like aerospace, automotive, education, robotics, fashion, medical, electronics, etc are using 3D printing. 

3D printing technologies that are revolutionizing the manufacturing process are Fused Deposition Modelling (FDM), SLS, which are highly ideal for plastics and alumide, Stereolithography, Continuous Liquid Interface Production (CLIP), Digital Light Processing (DLP) that use photopolymerisation. Other 3D printing techniques include Electron Beam Melting (EBM), Direct Metal Laser Sintering (DMLS), and more. 

Nylon, ABS, resin, polylactic acid or PLA, gold, silver, stainless steel, titanium, ceramics, PET/PETG,  high impact polystyrene or HIPS, polycarbonate, polypropylene, PVA, etc. are some of the commonly used 3D printing materials. 

Commonly referred to as SLA 3D Printing, stereolithography is an industrial 3D printing process that prints parts with highest details, tighter tolerance and smooth surface finish. This uses a technique called photopolymerisation wherein photosensitive liquid resin is hardened using a high-powered UV laser that creates the desired 3D shapes or objects.

SLA is an ideal choice for producing accurate and finely detailed parts with ultimate precision and water tightness and is adaptable with a wide range of materials. 

SLA applications: Medical industry for making custom ear products, entertainment industry for video games, bespoke costumes and even special effects, digital dentistry, in education for exposing students to STEM concepts, and more. 

SLS 3D printing provides high design freedom and accuracy, and produces parts with  good isotropic mechanical properties and excellent tensile strength. The commonly used materials for SLS parts are polyamide, aluminum filled nylon (aluminide), glass-filled nylon, and carbon-filled nylon. 

In the SLS process, a high-powered laser sinters the particles of polymer powder into a solid 3D model. SLS is used for rapid tooling, jigs and fixtures, moulds & casting patterns, transparent covers, optics, and more. 

In Fused Deposition Modeling (FDM) 3D printing, also known as material extrusion, the printer melts material which is mostly plastic and extrudes it from a nozzle in single layers. Multiple layers of molten plastic are then fused to form 3D printed plastic parts. The parts from this plastic 3D printing are tough and rigid, low weight and high strength.  

On the benefits side, FDM is economical, easy to operate with no chemical post-processing, supports plastics that are environment-friendly and produce parts that have complex geometries.  

PolyJet 3D printing is ideal for precision prototypes and products that are smooth, accurate, intricate details, complex geometries and delicate features. Just like how inkjet printers jet ink drops onto papers for printing documents, PolyJet works by jetting liquid photopolymer onto a tray. These layers are then cured with UV light for producing 3D models.

This could be put as MultiJet meaning, with multiple jetting heads PolyJet printers can even jet photopolymers of different colours to print multi-coloured objects easily. It supports a wide range of materials and is used across all industries. For example, in the healthcare sector for joint replacements, orthodontic appliances, prosthetic limbs and more.  

Metal 3D printing is an additive printing process that uses powdered metals and requires no contact tools and is managed entirely via laser beams. Here, a design is made on CAD and converted into .STL format. The design is then sliced and passed into the 3D printer. High-powered lasers are then passed to bind together the powder particles to form the 3D metal part. In the process, even layers of metallic powder are distributed.

Metal 3D printing is a type of additive printing based on laser technology that uses powdered metals. Some of the benefits of metal 3D printing include strong and robust finish, easy to customize or modify designs, ability to make ultra-complex parts and cavities which are impossible in traditional manufacturing and cost-effectiveness. 

The most common types of metal 3D printing are Powder Bed Fusion which include Selective Laser Melting (SLM) and Electron Beam Melting (EBM), Direct Energy Deposition or also called Laser Material Deposition, Electron Beam Additive Manufacturing, Binder Jetting, Bound Powder Extrusion to name a few.

The metal 3D printing applications are huge. Many companies are looking at this option for its low volume and speciality parts. For instance:

  • Producing functional metal prototypes so that engineers can evaluate and tweak the designs before they go into mass production
  • Creating intricate brackets with thin, complex lattices. For instance, titanium brackets for satellites that are 25% lighter.
  • Repair of aerospace and military equipment like turbine blades
  • Manufacturing of innovative rockets
  • Creating low-volume custom tools or instruments
  • Mass production of wear-resistant parts at lower costs 

There are many metal 3D printing materials available in the market. Some of the best ones are: 

  • Titanium: Lightweight, heat and chemical-resistant and strong
  • Tool steels: High in hardness, high heat and abrasion resistant
  • Iconel 625: A nickel-based super alloy which is strong and corrosion-resistant
  • Stainless steel: extremely corrosion-resistant and high strength
  • Cobalt: excellent temperature resistance, good mechanical properties and good corrosion-resistant
  • Aluminium: Good dynamic properties, low weight, good thermal and mechanical properties

Metal 3D printing technology uses powder bed technology. Similar to 3D printing, this process involves:

      • First, a CAD design file is created
      • It is converted into .STL and sliced into thin layers on the horizontal plane. It is then sent to a 3D metal printer.
      • The printer uses laser to trace the shape across the metal powder
      • The laser then heats up the powder to produce the metal part

   The process is gradual and additive.

Metal 3D printing technologies are:

   • Powder Bed Fusion

      Selective Laser Melting (SLM)

      Electron Beam Melting (EBM)

    • Direct Energy Deposition

     Powder DED

    Wire DED

    • Binder Jetting

    • Bound Powder Extrusion

 

Based on Powder Bed Fusion technology, Selective Laser Melting or SLM uses high-powered lasers to fuse metal layers into parts. Once the part is made, it is cut away from the build and post-processing work is done. The SLM 3D printed parts generally have a good precision, and are geometrically complex.However, it does require a significant post-processing work to achieve the perfect result.

Direct Metal Laser Sintering (DMLS) prints functionally rapid prototypes quickly. The 3D printer sinters each layer of the metallic powder with a laser to form a solid. Typically, the steps involved are:

   • Model is created with CAD and then sliced and sent to the printer

    • The printer is filled with the metal powder and heated to the temperature near the sintering range of the alloy.

     •  Thin layers of metal powder are dispensed onto the platform

     • Laser then sinters the powder into solid forms.

      • The sintering continues until the end product is produced.

Directed Energy Deposition (DED) is used across many industries like aerospace, oil & gas, marine, defence, etc. It is mainly used in repairing and rebuilding damaged parts. In DED, the material or the metal is melted into powder by either laser or electron beam and deposited onto the workpiece layer by layer. This additive manufacturing technology is called in different names like directed light fabrication, 3D laser cladding, laser deposition welding, rapid plasma deposition, and more.

In Binder Jetting, a liquid binding agent is deposited onto thin layers of the material which could be either metal, sand or ceramics, in layers until the part is completed. Binder Jetting 3D printers can print even more than 20 types of sand and ceramics; metals can be cured and sintered to achieve more than 97% density.

Metal casting or lost wax casting technology is a process where molten metal is poured into a mould cavity that has been created by a wax model, and cooled and extracted to produce metal shapes. Additive manufacturing and subtractive manufacturing could be said as a complementary technology for metal casting as 3D printing is ideal for low-volume casting jobs, facilitating greater design freedom.

A 3D model is a mathematical representation of 3D objects. 3D models are created for visuals for different industries like entertainment, 3D printing, virtual reality, video games, medical imaging, science, manufacturing and more.

To upload a 3D model design for 3D printing:

      • Convert 3D file into STL format

       • Slice the model with any slicing software

        • Use your 3D printer

Another best alternative would be to choose an online professional 3D printing service depending on your need and budget.

3D STL files are the most commonly used format for 3D printing. sTL stands for STereoLithography or Standard Tessellation Language. The format describes the surface geometry of a 3D object and uses a series of triangles to reproduce the surface geometry of the model. STL files are simple and easy to handle.

PolyJet or Multi-jet modelling is a 3D printing technique where a plastic model is created in layers using a printhead that has several nozzles. The thermoplastics or the material are jetted as drops and polymerized by UV light. MJM 3D printing method is ideal for high-detailed, greater complexity plastic prototypes. There are no geometrical restrictions and it offers good surface quality. 

PLA plastic or polylactic acid is a vegetable-based plastic material that uses cornstarch as a raw material.It is very popular in desktop 3D printing. Because it doesn’t require a heat bed and can be printed at lower temperatures, it is the best choice for extrusion-based 3D printers. PLA is renewable, biodegradable and very economical.

Injection molding is one of the common processes in manufacturing high-volume plastic parts. Better called as plastic injection molding, here the melted or molten plastic is injected into a mold cavity where it cools and hardens. Once cooled, the mold is removed and the plastic part is formed.

Advantages of injection molding are:

     • Low labour costs: The process is fully automated

    • Speedy production: Depending on the complexity and size of the mold, per cycle time could come to 15- 20 seconds.

     • More material choice, less waste: Compatible with different polymer resins and multiple plastic materials could be used simultaneously. There is less wastage and any unused plastics can be recycled for future use.

    • High-volume production: Ability to produce thousands of parts at a time

The injection molding process steps are:

    • Raw plastic material in the form of pellets are fed into the injection molding machine.
    • Pellets are melted by heat and pressure
    • Molten plastic is then injected into the mold quickly
    • It then cools and solidifies into the desired shape. The cooling time differs depending upon the thermodynamic properties of the plastic.
    • Once done, the cooled part is ejected from the mold

The whole method is short and takes between 2 secs and 2 minutes.

Plastic injection molding PLC machine is the equipment used for manufacturing of plastic parts through injection molding method. Based on their working system used, these machines are categorized into:

  • Hydraulic Injection Molding: This is the most preferred option for valve gates, thick walled parts, ejectors, valve gates and heavy parts. Hydraulic injection molding machines are easier to control and have better injection rates.
  • Electric Injection Molding: Powered by digitally controlled high-speed servo motors, electric injection molding is faster and more energy-efficient. It is ideal for high precision and small to medium parts.
  • Hybrid Injection Molding: combining the superior camping force of hydraulic machine with precision and repeatability and the reduced noise of electric machines, the hybrid model is highly energy efficient.

CNC machining is a subtractive manufacturing process in which computerized controls are used to operate the tools to create a product by removing layers of material from the workpiece. CNC machining technology works well on materials like glass, foam, plastics, composites, etc. CNC is ideal for low to medium volume production and produces high-precision and high accuracy parts cost-effectively. CNC stands for computer numerical control.

There are three different types of CNC machining operations:

      • CNC drilling: Drilling is the act of making holes in unbroken surfaces with a hand drill machine. In manufacturing, CNC drilling is done on CNC machines and lathes. CNC drilling machines consist of head, spindle, chuck, platform, drill bit.

      • CNC milling: Milling is the process of cutting and drilling a material like wood or metal. A milling machine uses a rotating cylindrical tool called a milling cutter. CNC milling machines can have more than two axes.

    • CNC turning : Turning is a subtractive process. CNC turning is a manufacturing process in which material bars are held in a chuck and rotated while a tool is fed to the piece to remove material to create the shape.

CNC is being adopted by many industries. Some of the CNC machining technology applications are:

   • Signage or carvings for modern shops

    • Intricate and elegant cabinetry and furniture designs

     • Musical instruments

     • Prototyping and 3D modelling

      • Computers and motherboards that have numerous precise parts

      • Firearms like ammunition clips, pins, barrels, etc.

       • Food and beverages industry

       • Engraving systems

       • Pharmaceutical industry

  And the list goes on for the requirement of CNC services.

CNC is known for improved accuracy and speed, more efficiency and cost-savings to produce precise parts.

Following are few of the best CNC machining technology benefits:

Low labour costs:  As computer software is employed for controlling and operating the machinery, CNC requires very less human interference. Only a limited number of low-skilled technicians are needed for oversight.

Continuous use: There are no time restrictions like in manual workforce, and CNC machinery could be continuously operated for a definite amount of time without any breaks. This brings in great output.

Flexibility: The software programs can be modified and reprogrammed whenever needed to keep up the requirements of the parts.

Just like injection molding, vacuum casting, the casting resin is poured into the mold and vacuum is used to remove the air pockets and bubbles for giving the product a smooth finish. Vacuum casting is ideal for low-volume production.

Vacuum casting process involves:

  • Creating master model: A model is created using stereolithography or laser sintering with correct dimensions and surface finish.
  • Curing: The master model is then sent to a silicone rubber mold and cured under high temperatures. When cured, the mold is cut leaving a cavity which is the same as the master model.
  • Filling the material: The mold is filled with the material and placed in the vacuum chamber to remove any air bubbles.
  • Final curing: The mold is cured in high temperature to make it stronger and durable. Once done, the silicone mold is cut into desired part planes and the master model is used to make prototypes.

Vacuum Casting is a flexible process in which a master model is created in .STL format, and then encapsulated in a silicone tool which will then be replicated in the polyurethane part. The tool is then placed inside the vacuum casting chamber and when it is at the right temperature, the resin is poured through a funnel into the tool. Once the part is cured and cooled, the tool is separated and part is removed.

Applications of vacuum casting:

  • Concept models and prototypes

  • Testing of products before launch or product marketing

   • Production of plastic prototype parts, especially for consumer goods industry

    • Decorative objects like wall plaques

    • Prosthetic and medical devices

     • Aerospace and automotive parts

Generally, materials used in vacuum casting are polypropylene (PP), glass filled polymers, rubber, wax, ABS, and polycarbonate. These materials have different excellent properties like toughness, tear strength, rigidness and high impact resistance.

Vacuum casting offers a host of benefits like:

   • Compatibility and flexible with a wide range of materials

    • Less to no post-processing works

     • Better turnaround times than injection molding

      • For a good finish, powders like gold, bronze, aluminium can be added to the resin

      • Feasible and cost effective option for short run and one-off prototypes

There are plenty of uses for vacuum casting like:

      • Packaging materials like bottles and tins in food and beverages industry

       • Making of domestic products like cosmetics, washing detergents, food processing

       • Production of sunglasses, mobile cases, pens, showpieces, medical devices, and lot more.

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