Work continues on the build of the bender and necessary
dies. Utilization of a sample die and bending of material by hand resulted in a
bend very close to what calculations determined, being 10.4” radius die for a
20” radius bend of 6061 aluminum flat stock of 1.5” by 0.25”. The main work
completed this weekend included the manual bend of material as proof of concept
and verification of calculations, the viability of the current design, and that
work yet continues according to plan.
There is a general update to the specific tasks listed on
the Gantt chart, resulting from realizations during the build process. Instead
of planning for two separate builds for benders and die creation in between,
work will be put towards utilizing the single design made thus far, with an
emphasis on die revision as necessary.
Looking forward to bender use in the Spartan Superway workshop
(away from my home, where I am currently working on it), a means of support
will be required. At present, the bender sits atop an old lathe stand, which
has both the size and the weight to accommodate the forces applied to it, and
resist movement. The lathe stand was obtained with the intent for personal use,
so an alternative support will be investigated for permanent installment in the
Spartan Superway workshop.
The bend on the 1:1 die, resulting in a radius too large to be useful.
Size of the die (10.3") according to calculations to match the 20" radius.
The material bent on the 10.3" die compared to the 20" radius.
The 10.3" die attached to the table, with holding block clamped.
Milling flat of the aluminum holding block.
Reaming of the aluminum block hole after drilling.
The aluminum block bolted to the table with corresponding pin.
Some of the many drill bits used thus far, as well as calipers.
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