Week 3 - Journal

The assignment is to make design and fabricate a 3d Printed Pencil holder.
The Pencil holder would be very useful to me as it would hold the pens I got while staying next to me on the desk, as most of the time my pens get lost at home, so this would be very useful.
I got inspired by this video here:
How to clutter Thingiverse #1: Spiral Vase | Fusion 360 Tutorial

I first draw a sketch on the base y-x draw a coil and made it have a 0.75 rev and a section size of 10mm, then I draw a polygon that touches the outer edge of the coil on the same plane, and after that, I draw a line from the centre of the polygon on the Y axis, after that, I used the sweep feature with Path + Guide rail to make the shape, I used the line a path and that the centre of the polygon s a path and thee coil outer line as guide rails, then I selected the surface of the shape and extruded down and made intersect with the shape.
I drew again another shape with the same step but with a 0.5 rev for the coil, and I got another shape which I combined and intersected with the first one to get the desired shape with the holes.

In the lab, the specialist first edited the design as she edited the profile height to be extra fast of 0.3 grams in height and kept the infill density to 20%.
Also, there were no supports, there was only a skirt adhesion but it was not needed at the end and saved the design to a g.code and copied it to the SD card of the printer and inserted it into the printer.
After that, I unloaded the white filament on the machine and loaded a red one to get the colour I wanted, and then, I waited for the filament to be processed right, and on the screen, there was a question says if the colour was clear or not, cause the previous white filament can get mixed with a new one for some time before becoming a pure red of the new one, after that, I selected the g.code file that was put on the SD card of the printer, and then I pressed start and it began heating the nozzle and the bed, the nozzle to reach 200 degrees and the bed to reach 60 degrees.
The machine then began to print the holder for a full 1h and 27 minutes.

The Design was set to be printed in 1h 50 minutes and I didn't know what to do to reduce the time and keep the weight, so in the lab, the specialist edited the 3D design on Ultimaker Cura on her laptop as she changed the profile height to 0.3 grams and extra fast, and kept the same dimensions but reduced the time to 1h and 34 minutes and the same weight of 20 grams and it got printed in a less time of 1h 27minutes.

This can help me a lot in how to design and print the gripper part of the robot arm as it would allow me to imagine how it would be and how it would close and how I would make it attach to the main arm and how it would hold objects