We just completed our first successful insect casting, a dragonfly.
Here is the link yo our FB photo album.
Although the legs were cast, they weren't beefed up enough to
withstand having the sprues removed. Well noted and adjustments will
be made for next time.
Also we didn't vacuum the investment the second time, just poured
slowly around the model and then shook on the vacuum table. The last
insect we tried appeared to have imploded during the vacuuming, any
thoughts on that possibility?