I decided to create some bigger sample made with epoxy resin. I chose some optical table. I have some 20W laser in my workshop (that is still waiting to run it), so table will be helpful to end and show laser on blog. I checked in net how they are made and what will be needed to do it.
So first was mold. I decided to made rather small table 160 x 240 mm and 30 mm high. Mold was made from plywood 10 mm thick. As was tested before release agent was silicon in spray.
Next was inserts with thread. So I have a problem here, because there is difficult to get dedicated inserts. I used my lathe to create some sample inserts. They were ok, but it take over 15 min to create one. So I would spend few hours to create inserts only for this small form. That why I decided to search something else. And I found a thing: Ericson's nut. They are used in furniture creation, but it can be easily used as inserts in epoxy casting.
