The assignment was to make a mobile holder using Fusion 360 to make a design that can be made using a Laser cutting machine.
I have used google to find some good designs that I liked but the problem was to decide which one and if I chose it another problem would appear is whether it can be machined on a laser cutting machine or not or how it would be assembled using tabs and screws...
these are some pics for the design that i liked
The design I chose
Designs that I liked
This assignment requires me to use fusion 360 to make the design process and exporting the DXF files....
and to use Laserwork to set the parameters of the machining process to define where to cut and where to engrave... and then export the RLD files..
The material used to make the design is 3mm Plywood.
And the machine model is: MORN MT3050D
The chosen design
The design process:
(1) I started off by breaking down this design into its parts to know how many parts are there..
they were 5 main parts where 2 of them have to have a copy...which can be notice in my quite clear drawing...
Part (1)
Part (2)
Part (3)
Part (4)
Part (5)
The design process:
(2) I used Fusion360 to draw these dimensions and test them if they are precise and look neat.
After drawing each and everyone of those drawings and have all of them fully defined we can extrude them to be 2.5D drawings..
Fully defined Sketches
All Parts after extrusion
The design process:
(3) After the extrusion we get to the Assembly part where we choose where we need to join the pats from Joints.. and complete the assembly (rigidly)......(that is where the problems and challenges comes)
Assembled but not totally (will be edited soon...After practicing the motion part )
Getting the files
(1) We need to export each sketch in DXF extension
(2) Import them o Laserwork to :
Edit the sketches and remove the extra lines that would appear.
choose the suitable machining process for each closed area whether it would be cut, scan or speed cut.
Make sure the sketches would take an optimized working area to save material .
Finally save the file as RLD file to upload it later to the machine.
PS. the file are in the Assignment files section....
Laserwork
After copying the RLD file and open using Laserwork on the PC connected to the machine and then Making sure that the design dimension didn't change (WHICH I COMPLETELY FORGOT @explained later in Problems challenges@) and the processes (Cut, Scan or Speed cut) parameters meets the current parameters of the machine (speed and power)
I used Cutting process for all the parts
Speed : 20 as recommended by the Lab specialist.
Power : 65 as default.
We downloaded the file to the machine.
Laserwork (After uploading the file)
MORN MT3050D Interface
After pointing the origin point from which the laser nozzle will start moving we chose the file then Trackframe it and after that we hit run and watch the time go.
MORN MT3050D
The interface display where we can run and trackframe
Once you hit Run display
Machining Time
After Assembly
What I can say that i have learnt through out this week:
I have learned new ways to start the sketch like using an equilateral triangle to start sketching the fidget spinner which encourage me to think about the design considering as many angle as I could to improve my designing senses.
one of my peers designs (for the fidget spinner) I liked and I would like to implant it in my final project.
I asked for and a piece of advice on how to assemble the design with movable joints and I am thankful that I could understand what to do which was to ground the main component and then assemble the components with movable joits like sliding and revoluting
I also was told to notice the angle which the user would be comfortable using for his/her (gender equality^^) mobile phone and it was great to notice the quite closer overview of the design when assembled as this point I didn't think that the angle I designed wasn't enough until I had a fully assemble.
The challenges that I faced before the machining process:
the Assembling process: The problem was the when I tried to connect a component that has a copy of it they act like they are connected somehow so any change in the orientation would affect the other.
The solution was that I deleted the component and its copy then extrude the sketch after making a copy of it then I would have the two exact components but not linked.
there are some other problems that would take so long to discuss but you can solve them by search and (trail and error) (النخفسة)
Fully defining sketches: I think I found the solution of the defining the sketch By making a Vertical and a Horizontal construction lines which intersect in a point that could be the centroid of the shape.
Exporting the DXF files from Fusion360:
I tried a different method from that one explained in the tutorial then I tried the tutorial and it worked.
Choosing between the Slot model and the Circular pattern holes:
For the final design I chose the Circular pattern model as it was easier to implant the fixing of angles idea as the other model need certain type of screws and nuts.
Mistakes that appeared after the machining process:
After I opened the RLD file on Laserwork I didn't check the dimensions if they were as I designed them or not so a problem appeared the T slot joint was 5.4*10.56 instead of 3.2*10 soit was a bit sloppy but the screw-nut joint held the pieces together quite tightly.
In the design I didn't consider the Height of the screw head so it blocked the access to the low angles.
Using slots model VS. Circular pattern Holes (for pin use)
This assignment enhanced my design ability and this would surely affect my performance in the final project..
What i can implant in my final project from this assignment is:
Defining every single sketch..
After uploading/opening a sketch in Laserwork make sure that the dimensions are right.
ASSEMBLE EVery component even the screws.
Title of Media
Title of Media