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The patent pending PostPro3D technology is an automated post processing solution for smoothing thermoplastic polymer 3D parts. PostPro3D achieves an injection moulded surface quality on parts printed using Laser Sintering, HP Multi Jet Fusion, High Speed Sintering, or Fused Deposition Modelling technology.



The patent pending PostPro3D technology is an automated post processing solution for smoothing thermoplastic polymer 3D parts. PostPro3D achieves an injection moulded surface quality on parts printed using Laser Sintering, HP Multi Jet Fusion, High Speed Sintering, or Fused Deposition Modelling technology.

PostPro3D® is an enabling technology based on AMT’s proprietary BLAST™ process (Boundary Layer Automated Smoothing Technology) and reduces lead-time, cost of manufacture, operational and maintenance costs providing the ‘missing piece’ in the digital manufacturing chain.

Injection Moulded Surface Quality

PostPro3D® makes part surface finishing cost and speed competitive for high volume production and has been fully tested for a wide range of consumer products ranging from sports footwear to medical applications and automotive to aerospace. PostPro3D® can achieve a surface finish with an Ra of less than 1 micron.

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Fully Automated

The PostPro3D® technology is an automated turnkey solution which can be easily integrated into the digital workflow.

Using a series of pre-defined parameter sets and algorithms PostPro3D® achieves for the first time a surface finish that matches injection moulding techniques.

Blast Process

The BLAST process is a physio-chemical process that can smooth a wide variety of thermoplastic polymers. The process is a non-line-of-sight and can smooth complex internal cavities of polymer parts. The PostPro3D® technology is highly controllable, allowing reproducible results with no degradation of a parts’ mechanical properties.

Easy to Use

The process chamber is 600 x 400 x 400 mm in size and allows large batches of multiple parts to be processed simultaneously.

The typical process time is 90-120 minutes with parts ready for end use application without any additional process steps.

Digitally Connected

The PostPro3D® machine is connected remotely to the 3G cellular network. This allows for automatic over-the-air updates, remote monitoring, automated consumable re-ordering, and automated predictive maintenance and diagnostics.

Dimensional Variation

Parts processed in the PostPro3D® machine exhibit no more than 0.4% dimensional change irrespective of desired finish level. This negligible dimensional variation ensures retention of fine feature details.

Material Properties

The BLAST process does not degrade the mechanical properties of the parts. Extensive testing demonstrates no loss in part Ultimate Tensile Strength (UTS) with an increase in Elongation at Break (EAB). The increase in EAB is due to the reduction of crack initiation sites on the polymer surface due to the removal of surface porosity

Additional Benefits

The BLAST process seals the surface of the parts removing porosity and thus sealing the part against liquid or gas ingress.

Medical Compatibility

Parts processed do not show a cytotoxic effect in accordance with ISO 10993-5, ISO 10993-1 and ISO 10993-12. Therefore parts processed using the PostPro3D® technology could be certified for medical use.

Consumables and HSE

The PostPro3D® machine uses a number of proprietary solvent blends developed by the University of Sheffield. The consumables are non-flammable and are delivered to the customer in quick change cartridges through an automated ordering system.

The user has a choice of consumables depending on their specific processing requirements.

AMT do not use corrosive and explosive acid mixes in the machine.

Certification and Warranty

PostPro3D® is a CE and UL listed machine with file number - E500100.

The machine comes with a 12 months parts and labour warranty.

PostPro3D® is automatically monitored remotely to fault find and to perform preventative maintenance.

Proprietary IP

Driven by innovation not imitation, we are committed to creating and protecting our own intellectual property. Our multiple pending patents cover the process, hardware design and operation, and consumable blends that we use in our hardware.

AMT have exclusively licenced the PUSh™ technology developed by University of Sheffield.



PostPro3D White Paper

AMT have worked with HP to develop a white paper on the PostPro3D technology. To receive your copy, please enter your details in the form above.

PostPro3D Processed Part Examples

PostPro3D Compatibility

The PostPro3D® technology is compatible with all powder-bed and filament based printing technologies. The following printing technologies have been validated by AMT and include Laser Sintering (LS), HP MultiJet Fusion (MJF), High Speed Sintering (HSS), and Fused Deposition Modelling (FDM).

PostPro3D® has been developed to process thermoplastic polymer materials. Currently the technology can process Polyamide (Nylon) (6,11,12), Flame retardant Nylons, Carbon/Glass filled derivatives of Nylons, ULTEM, PMMA, Thermoplastic polyurethane (TPU), and Thermoplastic Elastomers (TPE). To see a complete list of validated materials please click below.

Pricing and Delivery

How much does PostPro3D cost?

Please contact us for a quotation.

When will my PostPro3D be delivered?

The first commercial units are being shipped at the beginning of Q4 2018. Reserve a machine now to guarantee early delivery

Where are you shipping PostPro3D machines to?

We are currently shipping machines to Europe, the USA and China.

Can I reserve a machine?

Reservations for machines are now being taken. Please contact us to place your order.

Can I try the process before I buy a machine?

Absolutely! Please send samples to us for free of charge processing.

Part Geometry and Processing Considerations

The PostPro3D® machine can smooth complex non-line-of-sight lattice structures and sections as small as 1 mm with no structural deformation.

Part Size

The maximum size part that can be processed is 600 x 400 x 400 mm.

Part Loading

The parts are suspended in the chamber on the provided racks.

BLAST Smoothing Process

Coloured Parts

The process works with coloured and as printed parts. It is recommended to process the components of similar colours together to avoid cross-colour contamination.

Surface Roughness

Surface roughness of less than 1µm can be achieved.

Development and IP

University of Sheffield

AMT exclusively licenced the IP called PUSh from the University of Sheffield in the UK. The PUSh process has appeared in a number of peer reviewed papers and journals.

Click to find out more.


The technology has been developed over the last 18 months with a number of industrial BETA customers as well as a £624,000 development grant from Innovate UK.


AMT own the worldwide IP, including pending patents, trademarks and design rights to the process and technology.

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AMT is a vertically integrated technology development and manufacturing company. We manufacture automated Industry 4.0 hardware solutions enabling the industrialisation of 3D Printing.

3D Printing lies at the heart of the Industry 4.0 manufacturing revolution. Currently 3D Printing consists as a series of unconnected digital manufacturing processes with significant manual intervention. The manual processes and the lack of automation add significant cost and slow down production rates, thereby eroding many of the benefits of the technology.  This unconnected approach is slowing down the uptake of industrial 3D Printing and preventing the expected displacement of traditional manufacturing.

AMT’s technology is developed at the intersection of material science, chemistry, hardware engineering, robotics and machine learning. Our current focus is on the post processing of 3D Printed parts for high volume end use applications from aerospace to footwear.

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