3D Scanning + Porous + 3D Printing

Model: Spectrum Z510, ZD5 Depowdering System

Size: Actual model W300 x D200 x H165 (W355 x D254 x H203)mm

Material: White powder.

Interface: ZPrint

Input: .stl

Note: From Rhino (.3dm), export as .stl.

The printer can print to a precision of 0.5mm but but to give strength to the output sample it is recommended that minimum thicknesses not be less than 2 – 3mm.

<Sample Output>

0. Make a polysurface in Rhino. Make sure the polysurface is a closed polysurface to process the model in the 3D printer. We now mesh the polysurface using “from NURBS Object” under the Mesh tab. You can also set the polygon density for the finished output.

1.Check for the consistency in the model in the “diagnostics” and “edge tools” under the Analyze tab. It should not have any naked ends or open ends.

2. Save as type ‘Stereolithography (*.stl)

3. Set Tolerance as ‘0.05mm’ (Default as 0.01mm) (It depends on required accuracy/smoothness of the output.). Click Preview to check the smoothness of the surface. Then Click OK.

4. Select file type ‘Binary’. Then Click OK.

5. Set up the Spectrum Z510 machine in the laboratory.

a. Ensure the machine is ‘Offline’                         b. Open the cover

c. Put the required powder as per model size.     d. Evenly spread the powder manually.

e. Level the surface.                                                    f. Spread the surface from panel.

g. Check the final surface.                                  h. After closing the cover, switch the printer to ‘Online’.

6. Open the STL file in Z Print software in the workshop.

7. Set the units as mm or as per the Rhino model.

8. The Z printer automatically places the model in the workable volume. Under ‘Transform’ tab we can rotate and reset the position/orientation of the model as per requirement.

9. Go to File – ‘3D Print Time Estimator’. (It varies as per the volume of model)

10. Go to ‘File’ and click “3D Print”. The following pop up appears for printing options. Click ‘Entire Build”.

11. The final window appears as “Last check before printing”. (Cross check and tick all the options.)

12. The following window shows and the print starts.

13. Open the cover when the job is done. Carefully take out the output model since the model is very fragile.

14. Carefully take the model to the ZD5 Depowdering System machine. Connect the vacuum adapter to the compressor.

15. Switch on the compressor and pump. Clean the model with air jet to remove unbound white dust around the model.

16. Take out the model and place it on an even surface. Spray a slight mist of distilled water with EPSOM salts to strengthen the model. Let the model remain as such for few hours.

17. Drawback & Limitations :

The printing costs of the printer are very high at SGD 8.0/cubic inch of the sample output. 3-D printing is therefore a costly alternative.

The printer can print to a precision of 0.5mm but in order to give strength to the output sample it is recommended that minimum thicknesses not be less than 2 – 3mm.

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