This is the tutorial movie #7 of a series of videos about working with SCARM, created and narrated by Ruud Boer.
You can switch to full-screen mode by clicking on bottom right icon in the embedded player.
And again, thanks to Ruud, for creating these SCARM video tutorial series 
See also
SCARM Video Tutorial #6 – Build a Complex Layout in Just 5 Minutes
SCARM Video Tutorial #8 – Use Flex Tracks to Create Large Layouts
Hi. I’ve used flex track quite extensively, but there are times when it will not connect, even though there is quite a distance between the points I want connecting. Instead of the usual green colour I get a blue colour when trying to connect. I haven’t seen any mention of this colour in the help files. Please could you explain why I get this colour.
Hello Christopher,
The blue arrow means that the tracks will match, but there will be no join obtained because the tracks are on different levels (with different endpoint heights). Once you get a blue arrow, click as usual with the mouse and then adjust the heights – when both heights are the same, the join will be obtained automatically.
I am using the GarGraves O gauge track library. I need to maintain at least an O- 42″ curve. I don’t understand the numbers that appear on the flex track in my layout plan. For instance, one of my flex track curves reads “R16.8/32.4.” What does that mean? Does it tell me anything about the curve radius?
Hello Joe,
The “O-” curve indices in O gauge represents the diameter in inches. So, “O-42″ means a curve with diameter 42″ and radius of 24″ (half the diameter).
SCARM flexes in other hand shows the radius and bending angle. So, “R16.8/32.4″ in your case means flex with radius of 16.8″ and bending angle of 32.4 degrees.
Note that all radii in SCARM are measured to the center rail of the curves.