Photo 1 I made an assembly base by purchasing 8X16 inch piece of 16 guage steel from Home Depot. This was cleaned with MEK and then painted with two coats of spray Rustoleum matte white. When dry I drew guidelines on the steel plate with a marking pen. When working, I just cover the plate with wax paper held down by small magnets on the four corners (super glue will not stick to wax paper and you can see the guidelines through it). I also use both small and large magnets to hold parts in position during assembly. Photo 3 Here is a photo showing the use of large rectangular magnets to maintain a 90 degree angle to verticals I tack glued frames in position with super glue. After parts were tacked in place I followed up with a generous fillet of UHU and Aleens on the joints to make everything solid and put aside the assembly to dry overnight. Photo 19 In this photo you can see my magnetic building board in action. It is a small piece of steel painted white with grid lines on it. I use small magnets to hold parts in position while gluing up the parts. It works pretty good for this task. One drawback to this method is when you get the magnets too close together, they jump towards each other and could damage your model. Other than that they work great.