This week, we explored different methods related to slots and assembly, focusing on techniques like T-slot, X, and brackets. The main task was to design a pen holder, which was an exciting way to apply what we learned and connect theoretical concepts to a complete practical project. ❤️
Butter fly pen & pencil holder
I decided to link the holder to an animal, and the butterfly came to mind because it’s cute and I love butterflies🦋. So I choose the butterfly as the main theme for the holder. The design includes a closed box with four sides featuring the butterfly on it. The second part of the holder is designed to hold a calendar. As an additional idea, I wanted to make the pens I love and use the most clearly visible in front of me. So, I added two butterfly-shaped wings behind the calendar holder, with each wing holding a pen.
FOR 3D print
UltiMaker Cura software For Design
Creality ender 3 v2 Machine For Fabrication
PLA Filament Material of Machine
FOR Laser Cut
Laser Cad software For Design
Malky ML64 Machine For Fabrication
Plywood 3mm, 50*30mm
FOR Designing (2D or 3D)
Autodesk Fusion 360
Whole Design
Design and Assembly:
I started by designing the section with the T-slot, which is the closed part made of four sides. In this section, I used T-slots and X-slots to assemble it. Once I finished that part, I used the projection tool to sketch the bottom base. This base was designed to hold both the main closed section and the open section.
Next, I measured my calendar holder and designed its stand to fit perfectly onto the base. Finally, I added the two butterfly wings behind the calendar holder, creating a space for holding two pens. This added a functional and aesthetic touch to the overall design.
During the assembly process, I started by assembling the closed section first and then secured it onto the base. Next, I attached each side of the calendar holder to the base. Finally, I added the butterfly wings and the rings to hold the pens, completing the design.
After I confirmed that the assembly was correct, I started exporting each part as a DXF. For the butterfly part, I wanted to give the wings a more aesthetic look, but it was difficult in Fusion360 , so I downloaded a pattern for the wings as a DXF and applied it to the wings in LaserCAD.
In the end, I saved each face as a DXF, combined them all into a single file, and adjusted the cutting and speed settings in LaserCAD.
The sketches unfortunately some of them are not fully defined.
2.5D parts for Design
Laser Cut (For Whole Design)
I combined all the faces into a single DXF file and set all the configurations to cutting except for the butterfly pattern, which was set to speed cut. Then, I started working on the laser cutting machine.
then save file as DXF to Fabricate on machine. After that, I make sure the safety factors of the machine, the extractor, and the Chiller are in place and start the machine. finally, put work sheet in machine and set origin and click start.
2D model take: 11min
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Problem in Design
The first issue isn’t really a problem, but since I used a lot of freehand sketches, it was difficult to make many elements fully defined. The solution was to fully define the simple lines and shapes and fix the freehand-drawn ones.
The second issue isn’t really a problem; I just did it as a precaution. The part or the small loops in the back wings might not be stable, so I added a small piece to hold them in place in LaserCAD, as shown in the diagram
For any non-critical issue, I usually try to resolve it on my own through experimentation at first. If I don’t reach a solution, I then turn to the instructor for help.
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