5. 3D printing and scanning¶
This week I Worked in 3D scanning, I use two mobile apps. ScandyPro and Qlone
Scanning¶
Qlone Or ScandyPro?¶
I will compare two 3D scanning applications via mobile phone and how to use them.
- 1-downloaded the apps from the App Store.
- 2- Qlone: Starting with (+) for a new scan, Then select for scanning with a mat. ScandyPro: click in create scan to start.
- 3- Qlone: we need a mat to scan anything, I tried to scan a plant, there is the plant on the mat. ScandyPro: no need for mat, I tried to scan a pliers.
- 4- we will start scanning with 360 degrees by moving the object of moving around the object for both apps. but with Qlone A dome will appear, it is supposed to be blue and not red.
- 5- This is the final result fot both app.
- In the end, the winner is Qlone 3D scanning app . it is easier and better than the ScandyPro app because it scans only the object without anything around it. Also, the resolution of Qlone better then the resolution of ScandyPro. The details of object scanning with Qlone clearer then ScandyPro.
Are design able to generate files for 3d printing, can they be printed ?
Due to the object’s numerous flaws, poor clarity, and low resolution, the Scandy Pro program is insufficient for printing it with 3d printer; nevertheless, the Qlone 3D scanning software is good and adequate.
3D printing¶
3D printer¶
The process of building a three-dimensional object from a CAD model or digital 3D model is known as additive manufacturing or 3D printing. It can be carried out via a variety of techniques in which material is brought together, often layer by layer, and then deposition, joining, or solidification is controlled by computers. We’re going to use a MakerBot Z18 3D printer. This machine’s advantage is due to its components, which are unique to each machine and fluctuate. There are two primary types:
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FDM uses plastic and melts it to form a 3D design. The plastic is wrapped in film and the extruder in its name extrudes it will the nozzle heats it up as it gets pushed out at a temperate range of 215-290C. The machine requires a bed at the bottom to which the nozzle prints in in order for the plastic to stick. During the process of extrusion, the change in temperature causes the plastic to shrink as it is being melted out.
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SLA uses a ‘resin’ which is a liquid that melts with UV light to form the design, Mostly used for jewelry design and production.
Some characteristics of FDM 3d printing+
- Benefits Fast , Low cost ,Common thermoplastics.
- Limitations Rough surface finish,Anisotropic ,Usually requires supports,Not scalable,Limited accuracy.
- Quality Factors: Layer height, material quality, bed level, temp., orientation, nozzle speed, feed rate.
- Resolution: Range of 75 to 300 microns.
- Temperature: Range of 170 and 240 degrees Celsius, depending on the type of material being used.
- Material: Thermoplastics or thermoplastic/organic-material blends. ABS, PLA, polycarbonate (PC), PVA, ninja flex.
Special features of a 3D printer:
- The design is filled with infills. 30% would most likely be employed for designs that solely rely on the object’s exterior surface or attributes. A design that is anticipated to sustain pressure or wear and tear would most likely have a 100% infill.
- Support is unneeded printed plastic that is used to support specific design elements but does not improve the appearance of the design. Anything below 45 degrees does not require support. Due to the space that develops between the design and the support after printing, it might need to be eliminated.
- Axis Adjustability:Fine-tuning your printer often involves tightening or loosening the tension on one of the 3 main axes.
Things I learned by testing 3D printers:
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While varying speeds and melting points can significantly lengthen printing times, they also provide you with the most structurally solid designs.
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PLA is the material that is printed on the most frequently.
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Make sure to export designs in gcode format when sending them to be 3D printed.
Group work¶
Group assignment was in two parts, the first one to learn about 3D printer and its prints, and we saw some samples. Then, we have to print something to learn how to do it by ourselves, check Behnaz pageto see how we did it.
Individual work¶
“3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printed object is achieved using additive processes. In an additive process an object is created by laying down successive layers of material until the object is created.”
X, Y, and Z are the three dimensions that 3D printers may use. Utilizing Stratasys technology, prints have an accuracy of up to 0.2mm and match design dimensions.
- I have to create something not straightforward with a few elements and curves, therefore Mobkhar is my choice. The CO2 laser and CNC machines only work with the XY plane, hence they cannot print this design.
Design¶
- 1- first I build the wall of the Mobkhar then close it from top and bottom.
- 2- Then make a hole on the top of the Mobkhar and close it with some details.
- 3- This is the final design
- 4- After finishing the design I go to print it on the 3D printer Makerbot z18. Then I have uploaded it to the Makerbot software ande slice it.
- 5- This is the final result after 14 hourse.
- 6- Here is my final result of 3D printing.
Comment
My design requires additive manufacturing, which is the method of building an object from several layers, therefore you cannot use a laser cutter, CNC, or fine milling equipment to produce it. In contrast, subtractive manufacturing involves cutting or removing material to form parts. Additionally, the manufacture of small parts and their intricacies is aided by additive manufacturing, while on the other hand, as the process is still in its early stages, adjustments can be made as needed. Additionally, because larger parts can have more surface finishes with subtractive manufacturing, but my design is small thus the 3D printer is superior.
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