Tolerances are + 0.1 mm
Material... Softwoods are suitable, but all those that I manufactured
at APEX Enterprises were made from hardwood.
Top bar is supplied as a set of ten along with a 'normal' top bar that
will accept a sheet or triangle of foundation in order to get the bees
started on their job.
Apex type 2B Top bar
In order to limit the
places where wax moth could
pupate, the central groove did not run to the ends, but finished at
a point that was covered by a sidebar (if one was used).
Apex type 2A Top bar
This 2A type was manufactured in two forms... The one shown here was
used for cut comb production. The other type (link) was without a
groove and had drilled holes and was used to mount pairs of half
width breeding frames for use in full sized brood boxes.
Written... 28 September 2001, Revised... 04 February 2002
Revised... 16 Aug 2002