pushed out from between without trapping a bubble in between. gently squeeze the pieces together between your finger and thumb. move then slightly side to side and continue until the pieces start to drag against each other. set the assembled piece under the lamp along with the piece of paper with the unused adhesive and let it continue to heat. after a half hour or so turn off the lamp and let the piece set overnight. if you feel that you have to fiddle with the piece to see if it is setting up don't touch the piece. test the unused adhesive to see how well it is setting up.
there 