Tethered Alignment Dowels
by Steve Gillett
Many N-Trak modelers start out with a simple POFF (Plain Ol’ Four Footer) module. As their skills develop and ideas blossom, they envision and eventually build a multi-module diorama to allow for grander scenes while still retaining the portability of the four foot module. Frequently on multi-module dioramas, the track positions at interior interfaces are non-standard, thereby making track alignment more challenging. Also the scenery often makes front-to-rear leveling somewhat difficult. Unlike stand alone modules, a multi-module diorama always goes together the same way, with the same modules always next to each other. Therefore, the alignment at interior connections of a multi-module unit can be greatly simplified by the installation of dowel pins that, when inserted in opposing holes of module fascia boards, can insure proper alignment and leveling. Similarly, many modelers building home layouts are now building modular bench work, making it much easier to salvage and re-build that home layout after a move. Dowel pins offer the same advantages in these instances as well, particularly when the modeler has incorporated a removable N-Trak module into his home layout. To install the pins, properly position and clamp the diorama’s modules together and then drill two ½” holes through the side fascia boards where the modules are clamped. The holes should be spaced as far apart as possible without interfering with the clamp area or the legs and they should be as high as possible while remaining horizontally level. Then insert 1½” long x ½” diameter wooden dowel pins into the holes to insure proper alignment in the future. These dowel pins are pre-fabricated and are available in multi--packs at most large chain hardware stores. The ½” diameter pins are recommended because they have rounded ends for easy insertion, grooved sides for firm fit but easy extraction and will not shear like smaller diameter pins can. I used to glue the dowel pins into one of the modules, but found that it often caused problems when storing the modules. When looking for an alternative way to make sure the dowel pins wouldn’t get lost, I decided to permanently attach them in a more flexible manner by tethering them to the underside of the module so that they can be pushed out of their holes, but won’t disappear or get lost.