On 9/13/2013 10:29 AM, k7fm wrote:
Although there is a milling machine in the shop we are building our
airplane, we had one job where it would not work. We needed to make
slots in our wing. I designed a tool that works nicely for that purpose
and could also be used for making square holes in aluminum chassis.
I had an old Sears X-Y drill press attachment and made a small fixture
to hold a Dremel tool which held a 1/8" milling bit. I then placed this
on the surface of the area that needed to be slotted and secured it. We
ended up with perfect slots.
I just cut wood strips and fasten them down to make window cutouts with
a router or "zip" tool for the rear window on the Glasair III.
The smaller "zip" tool is much easier to use, but a lot slower.
73
Roger (K8RI)
I think the same thing could be done using a small milling bit attached
to a router, (if you make an adapter) then make an alignment jig to
control the direction and end stop of the router. The setup will take
longer than the cuts.
73, Colin K7FM
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