Bending Dimension Schedule for Dexter Track
By Bill Bennett

Material: 1 1/2" Diameter Pipe Size (NOT "Tube"), Aluminum, Schedule 40, 6061 T6
Distance between the Centerlines of the rail pipe for ALL Dexter Track is: 31.750"
The ties are wooden mahogany 2 in x4 in NET and are 3 ft long. There are 7 ties on a 20 foot piece of track.
They are evenly spaced with the tie on each end being located 4 inches from the end of the piece of track.

Nom. Radius of track *	Inner Radius, measured to pipe centerline			Outer Radius, measured to pipe centerline
	Inches	Feet	Inches	Inches	Feet	Inches
5	44.125	3	8.125	75.875	6	3.875
10	104.125	8	8.125	135.875	11	3.875
15	164.125	13	8.125	195.875	16	3.875
25	284.125	23	8.125	315.875	26	3.875
35	404.125	33	8.125	435.875	36	3.875
50	584.125	48	8.125	615.875	51	3.875
70	824.125	68	8.125	855.875	71	3.875

* In Feet, Measured to center line of ties, midway between the rails
# In Inches, Measured to center of the pipe.

Remember: After the pipe has been run through the bending machine, the first and last
14" of each piece of pipe is straight and must be cut off to enable smooth constant radius transition
from one peice of coupled track to another.

Purchase 1 1/2" "PIPE SIZE" aluminum tubing in a 6061-T6 Alloy, Schedule 40 from:

Industrial Metal Supply
3303 N. San Fernando Blvd.
Burbank, CA 91504

Phone: 323-849-3184

Ask them to "clear" anodize the pipe and include it into the purchase. Anodizing prevents the aluminum
from corroding and keeps your skin from contacting the aluminum when you handle the track.


For curved track you can have the aluminum pipe bent at:

Aero Bending Company
43328 Division St
Lancaster, CA 93535

Phone: 805-948-2363

Give them the above dimensions for whatever radius track you intend to build.
They say they have a 2 week turnaround, but if you whine it will be done faster.


© Copyright 1999-2004 Ron Dexter. All Rights Reserved.