Week #2 - Journal
Ideation
Tell us about your assignment's idea for this week. Why do you care about this idea? What inspired you? (Please include images or links to sources of inspiration)
Party Glasses for SPONGEBOB SQUAREPANTS
original sketch
for this week the assignment was to design and fabricate a mixed material cool sunglasses to be fastened together with screws after fabricating.
the assignment holds a challenge since it will be the first time to use mixed material in fabrication and the design requirements the goes in finalizing the design in a way for all the parts to fit together perfectly
the inspiration comes from the minds on hands on activity we had on week 2 session.
i imagined a glasses that would fit spongebob's cartoon character and in the same time be a good conversation starter in a party. for fun and comic purposes i thought it would be fun to write egyptian slang anecdote that one could find written on buses on the street
the glasses will both be suitable to be worn comfortably in both design and dimensions and will in the same time have the comic features of unrealistic shapes and dimensions of the glasses eye windows and ear piece design.
original sketch made at the minds on hans on using sketchup app
Tool Chain
Which software/machines/materials did you use in the assignment? Why?
below are the tools i have learned to use in the first week of the maker diploma. utilizing these tools i was able to finalize this week's assignment
Ultimaker Cura
Prusa i3 MK2
laser work
morn laser machine
digital caliper
as for the materials i used PLA plastic filament, 3 mm MDF board, black pray paint and yellow painters tape.
PLA filament
3mm plywood board
black spray paint
yellow painters tape
Design Process for THE GLASSES
Explain the design and/or preparation process of your assignment. How did you use the tool or software to design and/or prepare your assignment before fabrication/implementation?
MEASURMENTS
i started taking measurement of my sunglasses using calipers:
measuring the over all distance from the right to the left arm.
the dimensions for the nose piece
the distance between the front of the glass face and the ear curve
DESIGN
for the design process of the glasses i started with fusion 360:
1- start to make the sketch of the glass face and make it into a defined sketch. (model 1 side into a defined sketch and mirror it .
2 - the inclined rectangles were drawn with the 3 point rectangle tool and the the rotation and origin was set by degrees and center point dimensions
sketch was extruded at 3 mm to match properly with the upcoming 3d printing parts of the ear pieces
fully defined glass face sketch for laser cutting
3- for the connection between the face and arms i started by drawing a sketch of the tab and slot i designed on the face of the glasses and used this sketch to extrude the base of the glasses ear pieces. i used extrude offset plane with the different sketch faces to extrude the base and cut the screw holes both in the base of the arm and in the glass face it self (no assembly were used)
screw and tab and slot design sketch used to extrude the base of the ear piece
4- a combination of both screws and a tab & slot technique were used to both attach the 2 pieces together and lock there positioning place.
sketch used to design the connection between the earpiece and the front face of the glasses that will serve as a fixation and position locking feature.
attachment detail
side elevation of the attachment technique
5- for the ear pieces arms i started with a sketch of the lines that will later guide the sweep feature to form the body of the glasses and made sure it was fully defined sketch.
6-also to make sure the dimensions will fit a human head i sketched a circle to represent the ear and the curve of the ear piece is an offset of it.
sketch of the ear piece and the ear curve showing the circle representing the human ear
7- a sweep feature was used to form the body of the ear piece and fillets were added to sharp edges to make the part more dynamic and easy on the human skin
8- a copy of the part component was made and mirrored along the same axe
screen shot of the sweep function
full view of the singular part of the arms
full view of the singular part of the arms
9- since the base of the sweep feature interfered with the screw placement and an extra extrusion was made to hold a captive nut system to capture the fastening nut of the screw and for the design to remain it's beauty with out any visible fastners
this sketch was used to cut the nut hole into the extra extrusion on the base of the ear piece for the cabtive nut system
the extrude cut feature used for the captive nut system
shows the tab and slot and how the fron of the glass would lock into the ear part
shows the tab and slot and how the fron of the glass would lock into the ear part
shows the captive nut system
the complete and assymbled design of the glasses
3d front view
Front View
Side View
Top view
3d back view
Design/Preparation Process for the 3d printing assignment
Explain the design and/or preparation process of your assignment. How did you use the tool or software to design and/or prepare your assignment before fabrication/implementation?
laser cutting preparation
view of the part in laser works
after the preparation of the file in laser works i set up the parameters as follows:
CUT (SPEED: 10) (POWER: 65)
SCAN (SPEED: 300) (POWER: 30)
all the steps required to start the laser cutting job was covered in the Week#1 journey
3d printing preparations preparation
a preview of the 3d printed part in cura
after inporting the stl to cura it was not in the right orientation for bes printing quality so i had to rotate it 90 degrees and lay it flat .
eventually i sliced and exported the Gcode using the following parameters:
profile 0.3(extra fast)
infill 10 %
support (touching build plate) (support angle 60)
support structure (enable support interface)
build plate adhesion (brim)
nozzle temp (215) build plate temp (60)
each arm was 10 grams and took 46 minutes to print.
all the steps required to start the print was covered in the Week#1 journey
Development/Implementation Process
Explain the development/implementation process of your assignment. How did you use the machine/tool to manufacture or implement the design of your assignment?
laser cutting fabrication
picture of the final laser cut part
3d printing fabrication
part after removing supports
picture shows the fixation
the final fabricated part
final product after post processing
Overcoming Challenges
What kinds of challenges or problems did you face while doing the assignment, tutorials, or exercises? How did you solve them? Did you ask for help from an instructor or peer? Please provide a link to the tutorial or article that you used to solve your problem (if any)
a preview of the 3d printed part in cura
in this assignment i faced many challenges in 3d printing:
1- choosing the right settings to print the support for the part to have the best final outcome and quality . with guidance from the lab specialist i found out about the ( enable support interface ) setting which makes for cleanest and easiest support removal process
2- i was having trouble with the lay flat command in cura and upon guidance from my instructor i downloaded an earlier version of the app and it worked perfectly
3 - choosing the best orientation to print the part was tricky since it is a dynamic part with minimal flat surface area eventually i found out the the best way to print it is like in the shown picture
low connection area with buildplate
too much support- poor final quality
Final Project
How can you use the skills and knowledge that you've acquired this week in your final project?
in my opinion laser cutting with various materials will help in the housing (construction components of my project and all flat fabricated materials and parts.
and 3d printing will help in the custom parts and mechanizems in my project and parts with bends and/or ergonomic shapes.
WOW!
What is the coolest thing that you've learned this week? What is something that you will never forget from this week?
this week was my first time to design a part for 3d printing and It was modeled after the robot bender from futurama cartoon series
Futurama- bender
final fusion 360 model before import to cura
Weekly Digest
Tell us about any other cool things that you've made this week: in the Hands-on activity, tutorial examples, exercises, or any other cool mini-project that you tried out aside from the assignment.
Week Wrap Up In Pictures
our robot book mark