WEEK 05 3D Scanning & Printing

GROUP ASSIGNMENT:

3D PRINTER’S PARAMETRICS & SLICERS:

PRUSA i3 MK3 & PrusaSlicer

BAMBU LAB A1 mini & Bambu Studio

TESTS

I found this open-source model, coming from Kickstarter and Autodesk, thst is meant to provide with a standard test to assess 3D printer performance. Download from https://github.com/kickstarter/kickstarter-autodesk-3d

I used standard settings to comper the outcome

• PRUSA

  

• BAMBU

  

RESULTS

SUMMARY:

The prining time of Bambu was amazing, It was half the time of Prusa and to be honest the quality of the print seems better- specially in the upper spikes and in bridges. But also the filament for Prusa was a bit older and I should have printed it in a solid colour for better comparison.

I’ll compare now extreme bridging in both printers. Dowloaded from https://www.thingiverse.com/thing:2754688

• PRUSA

  

  

  

  

  

• BAMBU

  

  

  

  

  

COMPARISON:

Since Bambu priner was so fast let me reduce the speed for better comperison

MISSIN PICTURE- SIDE COMPERISON

SUMMARY:

As the final two tests I used Bambu because of the speed

I printed this cute spider to see more of the fine bridging as well with the final sphere finishing. Download from https://www.printables.com/model/299185-spiders-web-a-3d-printer-stress-test/files

The bridging went qite well and it seems to be very stable and resistant.

I wanted to see more of the finishing and slope printing as we can see in the top part of the spider, so I checked this model: Dowloaded from https://cults3d.com/en/3d-model/various/slopes-print-test and here’s the result

This test demonstrates how the angle of a slope influences the staircasing effect in 3D prints. Staircasing occurs when layered printing creates small step-like formations instead of smooth curves, a common challenge in additive manufacturing.

The design features nine different angle pairings (each summing to 90°), ranging from 5° and 85°. This allows you to determine which angle best reduces the staircasing effect on sloped surfaces.

Once you've identified the optimal angle, you can position curved models accordingly to achieve a more uniform and natural appearance. Alternatively, printing multiple calibration models at varying layer heights can help you find the best setting for minimizing staircasing.

IDIVIDUAL ASSIGNMENT:

3D MODEL OF THE FP’s BUTTON

I tried new features in Fusion360: FROM MODELING I learned it from this tutorials

• https://www.youtube.com/watch?v=SYLJyOuDKmo
• https://www.youtube.com/watch?v=L3HsWz-5-Pw

And here’s my firs look to a remote button:

SLICER SETTINGS

While setting up the print of the button itself I checked out this video about infills and their strengths https://www.youtube.com/watch?v=upELI0HmzHc I choose GYROID infill I stopped the print to take a picture and then continued without any problem

RESULT

3D SCAN

CHECKLIST:

Group assignment:

• Test the design rules for your 3D printer(s)
• Document your work on the group work page and reflect on your individual page what you learned about characteristics of your printer(s)

Individual assignment:

• Design and 3D print an object (small, few cm3, limited by printer time) that could not be easily made subtractively
• 3D scan an object (and optionally print it)

Learning outcomes:

• Identify the advantages and limitations of 3D printing
• Apply design methods and production processes to show your understanding of 3D printing.
• Demonstrate how scanning technology can be used to digitize object(s)

Have you answered these questions?

• Linked to the group assignment page
• Explained what you learned from testing the 3D printers
• Documented how you designed and 3D printed your object and explained why it could not be easily made subtractively
• Documented how you scanned an object
• Included your original design files for 3D printing
• Included your hero shots