HUSSAIN ALHUDHUD

Group assignment: 3D Printer Test

Creality3D CR - 10 printer

3D Printer Test

We will have a test on the Creality3D CR-10 Desktop Printer and Prusa i3 MK3 to test the ability printing. The featuures of CR-10 printer is:

Nozzle Diameter: standard 0.4 mm
Nozzle temperature: below 250 Degree Celsius in normal state, 270 Degree Celsius
Build Volume: 300 x 300 x 400 mm
Multiple 3D printing filaments: ABS / PLA / TPU ... etc.
Heat bed

We decid, Yousef and Mohammed to test the 3D printer by using a design from Thingiverse that will show up the ability of our 3D Printer. The test was made as follows:

Z-Height Check
Warp Check
Spike
Hole in wall
Raft Test
more Overhang Steps 50° - 70° (needs special care, like cooling)
2 different extrusion widths: 0.48mm & 0.4mm

Yousef has documented the Prusa group assignment as shown at the end of his page.

It's really good to use the performance that the 3D printer provides for prototypes projects as you can expect.

Download: Test Your 3D Printer V3

I used PLA filment for test the CR-10

The hexagon should fit the M4 nut but when I tested it didn't fit because it's small by 0.7 mm from the original design.
The Star shows you how the printer could print the sharp edges and it looks fine

The Pyramid get fine details

Hole size supposed to be 3 / 4 / 5 mm and what I get 2.8 / 3.7 / 4.9 mm.

FFor the Walls, CR-10 couldn't print all of them. It's only printed two walls form the left.

Dome circle get nice looks as shown in the image..

Vertical Hole it's 4mm as the original size in the design.

The wave goes smoothly in the print.

Spike was printed fine but not that strong enough

3D Fonts and Bridges get a good results

Text "ctrlV" it seems good

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3D Scanning

Using phone for 3d scan

First Try

It will be amazing to do two different experiments in 3D Scanning, so I decided to do a scan with phone mobile and the other with Matter and form scan. First, 3D scanning for any object that already printed. I have an android phone, but I couldn't get good results when I did use the SCANN3D app from google play. However, I asked my friends to use his apple phone to try a different app and I found one called "Qlone - 3D Scanning Solution". By the way, it takes a long time to get a result because the way to scan the object.

The paper down the object is required to be able to scan

Once you open the app you will notice a slice dome on the object and you must pass through these slices during your scanning

Once you finish the scanning it calculates your scanning to get a 3D module

3D Scanning by alhudhud on Sketchfab

The only thing that I cannot get using the Apple app is the STL file format

MODEL by alhudhud on Sketchfab

In the android app, I noticed that if you are going to scan any object you must make sure you don't have any shadows or object it doesn't reflect a strong light. So, I thought if I use the same page that I used when I scanned the object by apple phone it will be a good reference.

Find the the STL file for the result

Download: Scan

The first step needed that before starting the scanner is to make sure the contrast light around scanner is not too high or low and mostly like soft-lightbox that used to take pictures. Once you get a perfect location then you need to calibrate the scanner before your start scanning the object. The steps below will show you more details.

If you download the software and you open it, the first step is to calibrate the scanner

The scanner contains calibration card to use it for calibration and you will move the card from middle to nearest of the lens of the scanner

while calibrating the scanner

I did play with settings specifically with geometry settings and texture settings and do multi-scanning for the same object.

while scanning

Once you finish the scan you must do mesh to get the result for your multi-scanning

the result after printed the scanning object with the image shown. In the left the object printed after scanning and on the right the original object printed before scanning.

Download: Scan

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A 3D Desgin & 3D Printing

Using Oneshape for 3d design

Design a lighting shade

In this assignment I preferred to practice on Onshape and do something useful. In the design, I have made a pentagon shape in two different planes with two different sizes. Then I use the loft for the first time to connect two shapes. After that I use mirror on the sketches to get the design bellow.

This design took almost 5 steps to be done as it is:

The first step was drawing an octagon shape on the top with the measurements that you decided.
The decond step create a plane above the top plane and redraw an octagon shape and distance between the planes 40mm
Third step was using the loft tool to connect the two planes to get the first shape. After that using the Mirror tool the sketch was duplicated upside down.
The fourth step was using the shell tool which gave the option to hollow the shape.
The fifth step was to draw in one side of the shape to make a hole using extrude tool then circular tool to duplicate the draw in all the sides and repeat the step for the upside-down shape.
The last step it's optional to make a circular hole, only if you would like to use the design as a lampshade.

Download: Design

Onshape Design