first I explored the internet for some ideas I Liked the idea about changing the tilting angle of the holder , and also I made use of the folding and multi level concepts of the model I made for the mobile phone holder during the Hands-on, Minds-on activity in the lecture of week 2
Multi level concept
Folding concept to reduce space while not used
changing the level of the holder
Software Used for Design, assembly and exporting to .stl file: Fusion 360
Software used for preparing the .dxf for laser cutting: LaserWork
Machine: Morn MT3050D CO2 Laser Cutter
Material: 3 mm wooden sheets
I started by some measurements of my mobile using the ruler for the height and width, then by using a protractor I tried to find the comfortable tilting angles for using the mobile, then I started to imagine the required pieces, and started drawing
Design of different parts / developing sketches
I began with the front part where the mobile will set on, designed with multiple 3mm slots for changing the mobile height
then I sketched the base part where the sides will be connected, designed with places for guiding tabs for the side parts 3mm wide, and multiple slots 31 mm wide for the back stick so that the holder angle can be adjusted
After that I sketched the side part that will be connected to the front holder with using a hinge support, and connected to the base using guiding tabs and a T-Slot, (this design went through a lot of modification after assembly)
After that I designed the back slots that will be connected to the front part with a T-Slot and guiding tabs with extended dimension to act as holder for the sides of the mobile, and will be connected to the back stick part with hinges
Then for the back leveling part I designed it with also with places for hinge support to be connected to the back slots
Finally I Sketched the parts that will be used for holding the phone and will be inserted in the slots of the front part
using the Extrude feature on all parts to 3mm thick, and move & rotate tools I started assembling the design together
and after some searching about joints, I could make the design assemble together according to the required moves,
I grounded the "Base" part, connected the "Side" Parts with the "Base" using rigid joints, connected the "Back Slot" parts with the "Front" part
and then connected the "Back Stick" to the "Back Slot" using revolute connection , and the same for connecting the "Front" part with "Side" Parts
The following images shows the final assembled design in multiple positions
final design When Closed
final design Opened Back View
final design Opened Front View with 70 degree angle
final design Opened Front View with 50 degree angle
The following images shows the list of sketches, joints, and final components
Finally I saved every sketch to .dxf file, and opened them using LaserWorks software, adjusted the power to 65 and the speed to 25, which were changed later during the cutting process in the lab
While using the laser cutting machine, the instructor provided me with a lot of support regarding the steps to follow before start cutting, like adjusting the laser height from the wooden sheet, adjusting the origin and performing Track Frame
the lab specialist advised to change the power to 75 and speed to 15 to get the best outcome
The Final Outcome
During this task I managed to help another peer about making the sketches fully defined, and also advised her to correct the slots dimensions and the tabs openings to match the wooden sheet thickness 3mm
after the assembly I wanted to simulate the final design according to the real functionality and different positions, so I starting searching for other types of joints other than the rigid joints and how to use them, then I learned abut the revolute joint and fount it to be the suitable one for my design, I also learned about joints limits so that the final simulation can get the desired out come
This weeks assignment specially the process of assembly and joints feature was very useful, and since my final project will require multiple parts that will be assembled together I believe I can use the lesson learned from this assignment to reduce the time needed in designing sketches, assemble all parts to make sure they will fit after fabrication, and can easly modify my sketches and design to avoid any contradictions and clashes between parts
the coolest thing I learned this weak is definitely the Joint feature in Fusion 360, It helped alto to simulate the design which led to many modification to the original sketches and resulted in the desired final outcome