Wildcard Week

Individual　Assignments

• Design and produce something with a digital process (incorporating computer-aided design and manufacturing) not covered in another assignment, documenting the requirements that your assignment meets, and including everything necessary to reproduce it. Possibilities include (but are not limited to):

Have you answered these questions?

• Documented the workflow(s) and process(es) you used
• Explained how your process is not covered on other assignments
• Described problems encountered (if any) and how you fixed them
• Included original design files and source code
• Included ‘hero shot’ of the result

PC working environment?

• PC: MacBook Pro(16-inch,2019)
• OS: Sonoma 14.7.2
• Terminal: zsh

hero shot

There were several options, and I decided to try one of them: composites.
I decided to try to create one object using two types.

This is the result of try2.

Composites

What is Composites

Compositing is the process of combining and compositing multiple materials or elements, or the result of doing so.

Try1

Design(Fusion360)

• complete image

• the front

• the reverse

3D printing (SLA)

I used 3D printing (SLA) this time to output the 3D model.

• Anycubic

Anycubic : Photo Mono M7 Pro

• resin

Resin is used in this process. Careful handling is required.

Anycubic Photo Workshop

• Download

• import model

File Format : STL

• select printer

I selected Mono M7 Pro.

• select resin

I selected Siraya_Fast_Gray

• slice

• Save slice File

Printing

• output

The output is thus hanging from the board.

• Clean off the resin.

If it is not washed thoroughly at this time, it will be sticky when it dries. In my case, I washed for about 5 minutes.

• After washing and drying, use Form Cure to cure.

At this time I used the following settings

Setup Location	The settings I made
Temperature	0℃
Time	1h

At this time I used it for one hour, but even 30 minutes seems sufficient.

• completion

preparation

• The original hole was a little small, so we drilled it out.

This time I had to drill a hole to insert the syringe, but it was quite small ...
Drills were also used here.

• Once the holes are drilled, screws for pushing out and fixing are installed.

The screw to push it out should be stopped just short of the inside surface.

Before fastening the entire piece, waterproof tape is applied to the edges to prevent the resin from overflowing.

Once the tape is applied, fasten it firmly in place.

• I covered it with masking tape to prevent the resin from popping out of the air holes.

Resin

• The resin is poured in with a syringe.

The handling of resins has already been described in week13, so please refer to that document.

material
- Polyurethane Resins liquid A and liquid B

I left it a little longer this time, about 10 minutes, because I could not see inside and could not tell if it had hardened or not.

• The mold is removed.

At first, we planned to remove it with a screw to push it out, but since it was difficult to remove, we decided to break it open.

It is like mining for gems. |o|

I persisted until the end, but this is what happened. I think the cause was the lack of thickness in the object and the fact that I matched a hard object with a hard one. But I was curious if matching a hard object to a hard object really won't remove it...!!! Sorry 🙏.

Try2

Since try1 failed and we determined that a second try was unlikely to succeed, we decided to make a new try.
I did something similar with week14, but I did not soak the resin into the material to make it stronger, so I tried it.

Design(Fusion360)

• Male mold

• Female mold

printing

• Output and cure as in try 1.

• Apply a stripper, pour silicone, and wait one day.

The handling of silicon has already been described in week13, so please refer to that.

In fact, at this time I had forgotten to apply the stripper. So as a test coupon, I painted a small bowl and poured silicone into it. But the result hand chi was easily taken cleanly in both cases. I think it is because it is less thick.

COTTON

• Apply a release agent to the silicone and soak the resin into the cloth. (I used cotton material at this time.)

Since we found it difficult to hold it down by hand, we decided to affix an acrylic board to fix it in place.

• Remove after 5-7 minutes.

• Shape it with a cutter to complete the process.

Kimwipe

We decided to try Kimwipe as well.

• I scribbled on it.

• Produce in the same way as before.

I tried two sheets folded in quarters and stacked on top of each other.

• completion

Result

raw materials	impressions
cotton	This time I used one piece of cotton. It is stiffer than the original material, but I don't think it is that hard.
Kim wipes (paper)	It was harder than the original material, but felt softer on the inside, perhaps because the layers (8 pieces) were soaked with resin while still stacked, leaving a space between them, and the resin did not soak in until the end.

Design　Files

• try1 front STL / Fusion360
• try1 reverse STL / Fusion360
• try2 Female STL / Fusion360
• try2 Male STL / Fusion360

impressions

• I knew I should not try something hard on something solid.
• I thought it was interesting to combine materials with different properties to make them stronger.