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  1. Home
  2. SLA Prototyping
  3. Learn from the SLA Experts

Learn from the SLA Experts

With over 40 years of prototyping experience, we believe we are SLA experts. Here’s an overview of SLA, how it works, what it can be used for and more.

What is SLA?

Stereolithography (SLA prototyping) is a 3D Printing technology used for rapid prototyping and additive manufacturing

It is one of the most popular and versatile technologies we offer. In addition to being popular for the production of small prototype components and models, it is also ideal for making master moulds for parts to be used in other processes such as Vacuum Casting.

SLA is typically used early on in the product design process and produces parts with a good quality smooth surface finish, high accuracy and thin, straight, vertical walls.

How does SLA work?

A UV laser is used to draw a programmed design or shape onto the surface of the photopolymer material. Because photopolymers are photosensitive under ultraviolet light, the resin is solidified and forms a single layer of the designed 3D object. This process is repeated for each layer of the design until the 3D object is complete.

What are SLA parts made with?

SLA resin materials mimic ABS, PC and polypropylene. Prototype Projects offers SLA using Accura Xtreme, Accura 25, Accura ClearVue which deliver specific properties and characteristics. See our materials page for more.

When would you use SLA?

SLA is generally used early in the product design process when the main design features need to be demonstrated rather than tested. Some of the pre-production applications for SLA include:

  • Concept models
  • Presentation models
  • Investment casting patterns
  • Silicone tooling master patterns

What sort of quality do you get from SLA?

SLA produces parts with good quality smooth surface finish, high accuracy and thin, straight, vertical walls. Detailed features can be achieved, with a good quality surface finish, though stability and tolerance properties may only be tested with certain materials.

Clear SLA resins can be post-processed for increased clarity

What are the benefits of SLA?

SLA boasts many benefits, including:

  • Speed: build times are very fast so – depending on the part – next day delivery is often possible (see our service levels for dispatch times)
  • Small numbers: SLA can also be used to quickly produce small numbers of complex parts that could be for production.
  • Right tolerances: parts can be produced to very specific requirements

Top Tips

What’s the best way to get the results you’re looking for?

Always tap into the vast knowledge and expertise of your prototyping bureau if you have any questions. You’ll always find Prototype Projects likes to help, and the earlier in the process you start to work consultatively with us, the better the results we can provide in the end.

That’s not to say you always have to ask for advice, but we’re definitely always here to help.

What are the most frequently asked questions and their answers?

  1. Please quote for…. At Prototype Projects we have a range of prices based on part dimensions, turnaround time and delivery, and finishing required. The more specific you can be, the faster we can get the price to you. Click here to request a quote.
  2. Which 3D Printing technologies do you offer in your 3D Printing Suite? From our in-house 3D Printing Suite we offer SLA, SLS, Polyjet and DLP
  3. What’s your cut off time for next day dispatch? As a rule, We need to have quoted by 4pm for the Express Service, you have up until 5pm to place the order, this is also applicable for the SLS and Polyjet processes. This will depend on capacity and part geometry.

What are our three top tips for designers using Prototype Projects?

  1. Ask us any questions you like about your prototyping requirement – from material choices and properties to part geometries and detailing – and we’ll give you the best advice backed by over four decades of prototyping experience.
  2. Involve us as early as possible in the process so we can advise on all the possibilities.
  3. Don’t be afraid to lay down a challenge. We love to push the boundaries.

Talk to us

If you need SLA 3D printed parts, talk to us 01763 249760 or request a quote.

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Units 1&2, Greenfield
Royston,
Herts SG8 5HN

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    Specialist in the manufacture of prototypes - Prototype Projects

    Prototype Projects, established in 1980, is a specialist in the manufacture of prototypes. The company is experienced in 3D Printing, CNC Machining, Rapid Prototyping, Model Making and Additive Manufacturing. The company is located in Royston, Hertfordshire.

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    About | Our team | Our values | Customers | Work with us

    CNC Machining

    CNC Turning
    CNC Milling
    CNC Materials
    CNC Finishing
    Service Levels

    3D Printing

    SLS
    SLA
    PµSL
    Polyjet
    Digital Light Projection
    3D Printing Materials
    3D Printing Finishing
    Additive Manufacturing
    Additive Prototyping
    Service Levels

    Expertise

    Low Volume Manufacturing
    Rapid Prototyping
    Laser Cutting
    Inspection

    Contact us

    Prototype Projects Ltd
    Units 1 &2, Greenfield
    Royston
    Herts SG8 5HN

    office@prototypeprojects.com
    T: 01763 249760

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