You can also use your heat gun, and take the epoxy off. Heat it up good and slide the parts apart, then heat it more and get all the epoxy off and do it over. You don't want to fly it with weak epoxy.

I would start like Mike said first and put it in a heated room and give it another day and see if it gets hard. It won't be full streanght, but will be good enough, if it doesn't, then remove it all and do it over. Drilling holes and putting in CA won't give you any streangth.

Don't do it half way and have it come apart. Take the time to do it right.