I ordered some epoxy resin for a table that I was making, it was so much cheaper to buy a large bottle and now I have some left over to play around with. And making door knobs came to mind.
I had ordered some gears and watch mechanisms for Wish and when they arrive they were a bit smaller than I thought they would be, but they were perfect for this.
For my moulds I used silicone cup cake trays. I am hopeless at baking and cooking so it was nice to see them used after years in the cupboard. I arrange the gears in the moulds and for my second row I used unicorn Spit stain and glaze and some color pigment.
My epoxy resin is 2:1 so I used 300ml in total which was double what I needed. I had some long brass bolts with nuts on them which worked great. To hold my bolts in place I used chop sticks that I taped together with the bolts in between. It is a good idea to set that up before you start, which I did not do, so it was a mad dash to do it before the epoxy started to set. Mix resin to manufacturers instructions.