another ipod nano dock

Step 8 Casting resin progress

Now it is time to go chemical.
The casting resign is a very comlicated but inspire-worth material.
when you buy it at a usual hobby store, it comes with the needed harder.
At first, try to calculate how much ml of fluid you need.
Then mix the resin with the harder, i made it about 100% resin and 2% harder.
One drop is about 0,2 ml. 20 drops are 1 ml = 1 cm³.
But ther is an explanation when you buy such a set.

Agitate the fluid well , wait some minutes to let the bubbles flow out, but don't wait to long.
The resin will become toughly and sticky very soon and then you won't be able to change its postition.

Take syringe to fill the mixture into the mold.
Do this in everal steps. This means, don't mix all the resin you need at once.
Fill the mold to about the half, wait an hour, then fill in the rest.
The fluid needs time to react and becomes hard very slowly.
Don't bother if there are some tiny bubbles at first. they will slowly go move to the surface and disapear. The fluid will become very hot, that's also part of the chemical reaction.

I suggest to wait at least 3 hours before going on. Unpacking the item to early could deform it.