There is also a Templot video showing how to create a single slip -- see the Templot video list.
The video is from Templot version 082d and uses the new tools > make slip road function which simplifies some of what follows.
This page will be updated with more screenshots soon.
A slip road (shown above in red) comprises a pair of switches, one of each hand, and the two rails linking them. In Templot a diamond-crossing is comprised of two half-diamond templates, and a slip road links from the main road of one half-diamond to the diagonal road of the other half-diamond. The slip road is overlaid on the diamond-crossing as three partial templates. The slip switch templates are created by shortening ordinary turnout templates. The linking rails are an ordinary plain track template without any timbering.
The slip switches must be matched to any curving through the diamond-crossing, and the rails linking them must be adjusted for both length and curving to fit between the switches. This tutorial shows how to do this.
If the design of the diamond-crossing is changed, the slip road will need to be re-done to match. It makes sense therefore to wait until the track plan is finalized before adding the slip road(s) to a diamond-crossing for the final single-slip or double-slip construction template.
Assuming you have a half-diamond template from which to start (if not click the template > convert turnout to half-diamond menu item), this is how to add the slip road(s) and convert it to a single or double slip. The starting diamond-crossing can be straight or on a curve. In the screenshot above it is on a curve.
SPACEBARto zoom in and look at the switch. If the hand is wrong, click the template > invert handing menu item.
F6curving mouse action to correct it.
F4overall length mouse action) and adjust the radius (
F6curving mouse action) until it just lines up with the heel of the second switch. Zoom in to get the best alignment (a slight overlap is of no consequence).
The above sequence works regardless of whether the starting diamond-crossing is straight or on a curve. If it is on a transition curve, the plain track slip road may also need to be a transition. Align its transition zone markers as nearly as practicable to those for the diamond-crossing.
If you are using overscale flangeway gaps, you may find that the slip road rails conflict with the K-crossing check rails. Shorten the check rails to clear by clicking the real > K-crossing options > K-crossing check rails... menu item.
If both half-diamond templates are already on the background, you will need to make the changes to the V-crossing check rails and the timbering (items 1 and 2 above) separately for each.
If a double-slip is required, delete each half-diamond to current in turn, swap the TCP and MCP peg positions for each, and then store again. Then repeat the above process to add the second slip road.
For the switch blade rail-edges and planing guide-marks to be correctly shown on the printed templates it is important that the overlaid switch templates have higher numbers in the storage box list than the underlying half-diamond templates.
If the suggested sequence above is followed, this will be the case for a single-slip. However, if the half-diamonds have been subsequently deleted to current and stored again (for a double-slip, or perhaps to shove the timbers), this will not be the case. To correct this you can either:
a) in turn simply delete each switch to current and then store it again on the background, or
b) when storing the modified half-diamond, click the control > restore & background menu item, or
c) in the storage box, change the list order using the brown up and down arrow buttons.
When creating multiple overlaid templates like this, the template name labels
can be a nuisance. You can temporarily switch them off
(pad > pad background templates
detail... menu item), or drag them out of the way (click on a
template and then move name label on
its pop-up menu). Even when they are switched off, you can find them by holding
SHIFT key and
running the mouse pointer over their position. Then clicking the label selects
the template. This is a convenient way of getting the right pop-up menu when
several templates are superimposed.
If you are still at the track design stage it is a good idea to leave your slips as diamond-crossings until the track plan is finalised. This saves re-doing a lot of work if you change the design later. Add the slip roads when you are satisfied that the design won't change. This also ensures that the slip switches will be higher-numbered for correct printing.
revised 13-November-2007 ©