WEEK 5 - 3D Printing and Scanning

This week documents chronologically the exploration of 3D Printing and Scanning

MACHINES USED

Accucraft i250+

India’s first high-performance single extruder 3D printer for quick and easy desktop 3D printing. Divide By Zero’s Accucraft i250+ is a professional single extruder 3D printer, which sports a build volume of 300mm × 250mm × 200mm, marking your first step into the amazing world of 3D printing. Housed in a high-endurance sheet metal body, the Accucraft i250+ is pre-assembled, calibrated and tested for easy 3D printing right out of the box. Accucraft i250+’s low-noise operation, quick-load functionality, super-fast slicer and industrial-grade build quality ensure fast and reliable print-cycles. Advanced features like SD card, USB, Ethernet and Wi-Fi allow seamless connectivity and the built-in camera facilitates remote monitoring of print batches. With a low running cost and an easy-to-use interface, the Accucraft i250+ is built for accuracy, reliability and affordability for professionals and hobbyists alike. Take the first step towards visualising your design ideas into a tangible reality with ultimate speed and precision - Source (http://www.divbyz.com/i250+)

Fractal Works Julia

Layer resolution: up to 80 um Build volume: 21 cm × 25 cm × 26 cm Recommended filament diameter: 1.75 mm Nozzle diameter: 0.2- 0.8 mm (Replaceable Nozzle) Print technology: Fused filament fabrication (FFF) Stand-alone: SD-card printing Frame dimension X Y Z: 48 mm × 47 mm × 42 mm Operation nozzle temperature: 180-260 °C Software: Fracktory

FRACTAL WORKS - JULIA

3D Printing PRACTICES

First was learning the properties and materials for the 3d printers. I found this model of the Iron Man's Helmet on thingiverse here is the link here
- I 3d printed a test piece of Iron Man’s Helmet . The following are the photos attached of the entire process. Following is the process that

3D DESIGN RULES

One of the most important rules of 3D printing is the resolution and size of the print in question . The horizontal and vertical resolution of the 3D printer needs to kept in mind before designing the print .

ADVANTAGES OF A 3D PRINTER

3D printer is good for quick prototyping of any 3d model. It is usefull for generating an complex object . 3D printer has various materials which can be used i.e which can be used to for example materials have metallic finish . some have a wood finish .

DISADVANTAGES OF A 3D PRINTER

3D printers are slow to print . There are various problems which are generated when using different materials i.e the nozzle gets clogged and needs regular maintanance . 3D printers need to be caliberated i.e the bed needs to be leveled. Random glitches in the Gcode can really screw up the 3d print .

3D Design Process of the Print

For designing my own print I went into the sculpting environment of Fusion 360 as I thought this would be good opportunity to learn complex surfacing tools in Fusion 360. The “sculpt ” environment . Vase was designed using the plane where a t spline . After it was constructed I used the revolve command . I used the sculpt environment but the body couldnot be edited . The body could not be edited because revolve generates a single surface body. While the sculpt environment generates the same surface but with multiple vertices and rectangles . First i created a toroid , which i manipulated to form a peak . This peak was then isolated i.e i deleted everything else and duplicated circularly in the access. This was used to create the flower shaped pattern .

Shape of the torroid is being manipulated in the above picture . In this picture i am manipulating the single vertice . This vertice is pulled to form a peak .

Circular pattern used for making a flower . The shape on the right is the original . This shape is copied and rotated 360 degrees where it forms multiple instances of the said peaks .This generates the complex shape as seen in the image. As these peaks are at an angle and contain a lot of complex geometries and surfaces they cannot be done by standard practices .

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Flower form put inside the vase . To make this design more complex and suitable for a 3d printing I decided to add it to a Vase , which is object which hollow from the inside .

Exporting the model into STL. Following screenshot illustrates the process from which you can generate an STL file in Fusion 360

This is the 3D print of the vase . as you can see majority of the print of good quality . Whereas the top part being too thin for the printer is messed up. This could have been resolved by using supports . In this particular setup no supports were generated

After a short discussion with my local instructor . Overhang was printed at the top . But due improper filament extraction there appears stringy parts at the bottom of the top lip of the base.The supports which were generated for the base and the peak features have not replicated at the top part of the design.

SCANNING MY BUST

Sitting for my scanning . Notice i am sitting on swivel stools . This stool allows me to rotate freely without moving or changing the position of my torso .

After completing 360 degree , a 3D model is generated of my head. Notice the distortion of the hair and the eyes . This is due to the reflectivity of both which messes up the scanner.

Side view of my head .

Printing out the bust in Julia . This was printed on the Fractal Works Julia . Along with Kamlesh's print .

Mini Me (Final 3d print )

The orignal files can be found here