I have had this scroll saw since 2012, so 8 years now.
I recently went to scroll some kid's puzzles from 3/4" thick pine, and noticed the puzzle pieces would only slide out 1 way.............they should slide into each other from either direction. I did the standard test, where you scroll saw a piece of 2x4 partway, then flip the board around and see if the blade still lines up with the cut you made..........and mine was slightly off.
I checked the manual for how to adjust the table angle, and it was no help. I Googled it and found where somebody posted that one way was to loosen the 2 screws under the table, from the operator station, that hold the table to the tilting mechanism. I loosened both bolts, and in my case, the table needed to rotate clockwise a degree or 2.
I found a thin piece of cardboard, about the thickness of a playing card, and slipped it under the LH screw. I tightened up both screws. I cut a test puzzle piece from the 3/4" thick pine, and now the pieces slide together from either direction :)