3D Scanning and Printing A¶
Group assignment requirements¶
The group assignment for this week is the following:
- Test the design rules for our 3D printer(s)
- Document our work on the group work page and reflect on your individual page what you learned about characteristics of your printer(s)
3D printing machine specs - Creality¶
Machine name: Creality K1
Max speed: 600mm/s
Max print volume (LxWxH): 220x220x250
Finest possible layer height: 0.1mm
Filament diameter: 1.75mm
Max nozzle temperature: ≤300°C
Heated bed max temp: ≤100°C
Machine type (FDM or SLA): FDM
Safety¶
1- Do not use the printer in any way other than described herein to avoid personal injury or property damage;
2- Do not place the printer near any heat source or flammable or explosive objects. We suggest placing it in a well-ventilated, cool, and dustless environment;
3- Do not expose the printer to a violent vibration or any other unstable environment, as this may cause poor print quality; Please use recommended filaments to avoid clogging the extrusion head and causing damage to the machine;
4- Do not use the power cable of other products during installation. Always use a grounded three-prong power outlet, which accompanies the printer;
5- Do not touch the nozzle and the heated bed during operation to avoid burns or personal injury;
6- Do not wear gloves or wraps while operating the machine to prevent entrapment of movable parts that could cause crushing and cutting injuries to bodily parts;
7- Use the provided tools to clean the filament from the extruder in time taking advantage of the residual temperature after printing. Do not touch the extruder directly when cleaning, otherwise, it may cause burns;
8- Clean the printer frequently. Clean the printer body with a dry cloth regularly after powering off the printer, wipe away dust, bonded print filament, and foreign objects on the guide rails;
9- Children under 10 years old should not use the printer without supervision, otherwise it may cause personal injury;
10- Users should comply with the laws and regulations of the corresponding countries and regions where the equipment is located (used), abide by professional ethics, pay attention to safety obligations, and strictly prohibit the use of our products or equipment for any illegal purposes; Creality will not be responsible for any violators’ legal liability under any circumstance;
12- Tip: Do not plug in or unplug wires on a charged basis.
Design rule testing¶
You can use this 3D design test or find another one that tests similar rules.
we used this to download a random file to test.
This test tests overhang, warping, size accuracy, bridge test, fine details and general accuracy of the machine. we tested the same design using two different machines. namely the Creality K1 and the Ultimaker to see the difference.
you can tell that the Creality printed much smoother and cohesive than the Ultimaker. The Ultimaker printed out very stringy, thus making it look very messy. You can also read more clearly the numbers engraved in it. But all in all, they’re both very sturdy.
Slicing¶
The design was sliced using Creality Print slicer software. This is where we imported our the design stl file to make it ready for printing in which you can check whether the design needs support or brim, as well as choose the infill type and percentage.
It is an easy-to-operate software that provides various model processing functions for free. It can help you remotely control and monitor your 3D printer, and assist you in printing directly from your computer. Creality Scan has many features that helps the user achieve clean scans and complete models.
First it asks us which printer we will be using. in our case, it’s the K1.
Once you drag your stl file in the work space, you can edit multiple settings such as the scale, filament material, and infill. We changed the infill to 20%
The settings used were the following:
Material: PLA
Rafts: No
Support: No
Resolution: 0.2mm
Infill: 20%
Printing process¶
The estimated time to finish printing was 2hr 40min, estimated amount of material needed was 69.42g
Describe and show the process of setting up the machine. Example: Adding the filament, adding blue tape/glue to the bed if any, sending the design to the machine to print, calibrating the machine, etc.
The machine bed is first wiped with ethyl alcohol to make sure the printed object sticks and doesn’t move during the printing process. then the design is sent to the machine by wifi. the machine starts by heating the bed and the filament first, and it also has an inbuilt camera that shows the printing process in real life and the current temperatures as well as the time left.
Printing in progress
- Insert timeline video
Result¶
Parts were moving easily and freely However, 0.1 test was welded in with the body, which means the printer needs further configuring to prevent that Overhang was all successful Gears and lock mechanism was successful “Toast” handle was moving freely
3D printing machine specs - Ultimaker¶
We were introduced to the 3D Printing and how it works. Obviously, there are many different kinds of 3D printing machine and each machine has different quality, pros and cons. We also learned about the types of filaments and its qualities that can be used to print.
To 3D print, you must have a 3D design that is done in any software that supports 3D whether it was Revit, Fusion, Sketchup, Blender, etc. After you’re done with the 3D drawing, the file must be saved in STL format so that it can be opened in any slicer software.
Slicer software turns digital 3D models into G-codes that 3D printer can understand. G-codes contains instructions for the 3D printer and tells it how to print the 3D model
Machine name: Ultimaker 2
Max speed: 300mm/s
Max print volume (LxWxH): 223 x 223 x 205 mm (8.77 x 8.77 x 8.07 in)
Finest possible layer height: 0.02mm
Filament diameter: 2.85mm
Max nozzle temperature: 180 – 260 °C
Heated bed max temp: 50 – 100 °C
Machine type (FDM or SLA): FDM (Fused Deposition Modeling)
Safety¶
Safety steps:
- Never reach inside of the machine while it is in operation.
- Always control the printer with the button at the front or the power switch at the back.
- Allow the machine to cool down for 5 minutes before reaching inside.
PursaSlicer¶
We were given a website to choose a design from to 3D print. We used www.thingiverse.com and downloaded two designs. We started by: Uploading both designs in PursaSlicer (drag and drop) Adjusted their positions and scale Apply filament type as PLA Click Slice Now Total time needed to will appear in a box Click on Export G-Code Save the file and transfer to an SD card Insert SD in the 3D machine Search for the file Click on Start
Overhang¶
Describe how the overhang result is looking. At what angle did the filament start sagging/deforming? Reflect on how that can impact your designs/when to use support
Bridge Test¶
Describe how the bridge test result is looking. At what distance did the filament start sagging/deforming? Reflect on how that can impact your designs/when to use support
Fine details and accuracy¶
Measure the printed details using a caliper for an accurate measurement. Compare between the measured value vs the design measurement. Reflect on how that can impact the designs you make in the future
Result¶
One of our designs was a success (the octopus), and the other one (cup) was a complete failure, because we were supposed to add support in the slicing process and did not to that, so the design ended up deforming in the printing process and turn out in several pieces.
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Sources¶
The information referenced in this page was found in the following sources:
Source 1
Source 2