FabAcademy 2017 Class

Composites

Making a Fruit Bowl

On this assingment I used Jute fibers and Epoxi resing to create a fruit bowl

To use this product i needed follow the safety instructions that can be found here:Link to safety guide

I used the same epoxi resing at my "molding and Casting" Link to the Epoxi resing website, This resin have a 2/1 resing hardener mix ratio and the curing time is 24 hours

Before i needed to make a "negative" using Fusion360, make a sphere and then cut it and half and using the 123d make software to make the joints, and then cutting it on the lazer cnc

DXF File Avaliable Here

After cutting and assemblig the "negative" it was time to prepare the local i was goint to use, epoxi resing can and will make a mess if you are not carefull

With that ready it was time to prepare the negative, I used a plastic bag and some demolding wax to make the resing dons't stick too much

With the negative ready it was time to spread the resing on the jute fiber and carefully put the wet fibers over the negative

After it dris it was time to cut the excess

My final product had to much bubbles both on the inside and on the outside, this was probably due to my fisrt time duing it and we don't have a vacuum pump, that could be helpful to make the results even better

Composites by Compression

To prove that i was able to make a "compression" mold, not a wet layout as i did before, i made this door handle holder.

The propouse of this project is to make my door stay in place using a holder.

In this project i used 1g of resing (4 part epoxi to 1 part catalyser) to 1g of cotton fabric.

I used 25g of fabric and 25g of epoxi resing

To get a compression i used 2 molds that i have created using Corel Draw x8,this is what it looks like.

DXF File Avaliable Here

To make sure the wood glue would stick properly to the wood i hand made this "scraches" to increase adhesion.

To make a smooth surface i used a vynil sticker on top of the wood, this made the wood resin-proof and its a loot easier to apply the wax tho reales the mold on the vynil.

After applying the wax i measured the resing and the catalyser to make a proper mixture. I laid down the cotton fabric and using a brush i aplyed the resing.

To add pressure to the mold i used 4 C clamps to apply and keep the pressure as the resing cures

To realese the final piece from the mold I used a rubber hammer and a phillips screwdriver

This is the final piece before finish

This is the final piece after finish