3D Print Design Parameters

Guidelines are generalised and are very much geometry dependant.
Results and requirements can vary between technologies and materials.

Whilst we take every care to check your parts for below features, sometimes potential failing features make it past us. Please check your data against the notes below and let us know if a further discussion is required.

Minimum wall thickness

MJF

0.8mm

 

FDM

0.5-1.32mm

Polyjet

Rigid

0.6mm

 

Flexible

1mm

Colours

1mm

Unsupported walls/rod

Features 5x longer than the width of the feature is likely the break during clean-up

Support removal access

Parts require access for support material to be removed post-print
If access is limited we will always try our best to remove as much as possible

Warpage

Parts with high aspect ratios are likely to warp but every effort will be made to orientate parts to reduce this
This is an inherent additive manufacturing pain across all technologies

Engraving & Embossing

As a general guide 0.6mm text thickness with 0.5mm minimum height/depth is suggested
Font and logo design are to be considered

Threads

Threads greater than M8 can usually be printed. Round, angled threads are suggested.
Below M8 we suggest either a cut thread post-print or a threaded brass insert – insert must have sufficient space to be accommodated.

Threaded inserts

Please see Tappex Multisert product page for hole and boss guidelines

File resolution

If supplying STL files, please check the file output optimisation for print quality

Minimum features

Small features falling below minimum wall thickness recommendations are likely to lack clarity or potentially even form

Hollow features

Parts require access for support material to be removed post-print

Clearance for moving features

0.4mm gap required for assembly components

Applications/strength requirements

Please inform us if your part has a special requirement for:

·  Heat

·  Flame retardancy

·  Specific material

·  Surface finish

·  Accuracy deviation (please see our general tolerance info at the top of the page)

·  Strength or performance in particular feature

 

 

 

 

 

International Tolerance Grades (IT) (mm)

 

 

 

 

 

Above

 

0

3

6

10

18

30

50

80

120

180

250

315

Up to and including

3

6

10

18

30

50

80

120

180

250

315

400

IT12

 

0.1

0.12

0.15

0.18

0.21

0.25

0.3

0.35

0.4

0.46

0.52

0.57

IT13

 

0.14

0.18

0.22

0.27

0.33

0.39

0.46

0.54

0.63

0.72

0.81

0.89

Feel free to query any aspects regarding your specific parts with a member of the IPF team

3d printed carbon fibre nylon
3d printed insoles
HP MJF 3d printing

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