Contact Us
Home
Cadfil® Spar Winding
New Software, Now available....
The Cadfil Spar winding program is part of the non-axisymmetric suite of programs for complex winding
geometries. The user defines the (constant) cross section of the mandrel using 2D lines and Arcs in a CAD
system such as AutoCAD. This cross section information is written to a DXF file which is then read by
Cadfil to create the 3D mandrel surface.

The user specifies the standard parameters such as mandrel length, the program start position, wind angle,
band-width... The software then automatically calculates the paths and winding pattern which can be viewed
in the standard Cadfil 3D viewing system.

Multiple wind patterns of different wind angles and wind lengths can be created and this can be
automatically joined to create a complete multi-angle continuous program with no stops.

Cadfil-Spar has two types of winding pattern Generation depending on wind angles :

High Angle (30-90 degrees to axis)

High angle does not require winding over the mandrel ends allowing easy mandrel extraction and fast
winding.

Low Angle ( 6-30 degrees to axis)

For this option the fibres pass across the end on the mandrel and around the mandrel support shafts. Care
must be taken in the design of the mandrel end shape and in the shaft diameter. We have considerable
experience in this area and will give advise where required.
Overview  of Spar Input Parameters
Winding A Large Yacht Mast Section
Size is no problem for Cadfil-Spar!
In Action - A Carbon mast
manufactured using Cadfil-Spar.

Due to the quality of the fibre lay-down the
mast mechanical properties exceeded the
customer expectations.