A redesign was needed for a better looking tie strip than the previous tie strip casting. The answer was to just use one
tie bar on one side of the tie strip.
NOTE:Click on picture to enlarge. Click back button on your browser to return to this page.
 |
A new CAD drawing was made and new program was made for the mill with only one side with connections to the next tie. |
 |
A new master was milled and an aluminum frame was made. |
 |
Finished mold frame. |
 |
Master mold and mold frame held in alignment with dowel pins and machinist clamps. |
 |
Ready to mix up the first batch of rubber to make the mold. |
 |
First resin pour. A piece of Plexiglas was placed on top for a squish casting. Also tested a possible turnout tie strip. Upper left is a second mold curing. |
 |
When the resin has cured it turns white. Note the minimal flash between the ties. This was caused by the piece of Plexiglas "squishing" out the excess resin. |
 |
Closer look at the cured casting. |
 |
The tie strip stripped from the mold. |
 |
The flash removed. |
 |
First production samples. |
 |
Three 9" sections make up a three foot track. The resin tie strips were designed to be used with Code 55 rail. |