the passed few year which I have been using these blocks to make models
I have found that the following have helped me to assemble them.
1) UHU General purpose Glue works well
2) If you have any lego make a corner section about 3/4 inches on each of the wall and use this when building walls.
3) for a base I use MDF but some people use foam board which can be cut easy.
4) When building roofs or floor of towers I would use
card (600g type) to glue them to before gluing them to the model.
you have any tips which you would like to share with your fellow
modellers please email them to Customer Service who will place the
information on the site.