 |
My layout table is around 18 Ft long. The mistake I
made with it was using 3/4" thick particle board for the top with
insufficient numbers of support braces underneath to keep it from
sagging in the center with hammering etc. That means I have to
make other compensations to get the desired results. My workshop was
originally an open boat carport shelter that has later been
enclosed. The floor slopes in all directions with the natural
ground too which was OK for the original purpose but
presents more challenges for levelling. All these issues just make me
try harder to overcome them. |
 |
The frame had been pried out of the location blocks
for clean up of the epoxy joints.
|
 |
Thought the
scarfing was going to be more difficult than it turned out. Used a
portble drill with a sanding disc and watched the wood colour changes
as I worked through the 5 plies over a measured 1" taper /
overlap. Scarfing was done using a 1:10 angle (Vs the Rand
Robinson manual 5/8" long and 1/8" thick = 1:5). I believe
that 1:10 gave a better / stronger result.When scarfing and laying the birch ply sheets for the sides I started from the
nose end, but on reflection it would have been better to start from the
tail and work forward so the overlaps do not favour entry of wind or
water if there were any leaks or tendency for the joint to open up.
Would have wasted a lot of plywood if I had followed the manual and
kept all the side and bottom panel scarf joints coincident
with vertical 5/8" brace pieces.
|
 |
Fuselage sides have been bent around locator blocks
to fit the drawing contour.
|
 |
Fuselage upside down for fitment of belly cross
members.
|
 |
Belly
plywood skin added. While my KR will be tricycle undercarriage, I have
fitted the Rand Robinson designed tail wheel mountings with the spring
steel strip to act as a tail skid and protect the rear end from damage.
It will also serve as a tie down point
|
 |
Fuselage frame turned right way up again.
|
 |
Longeron doublers added along with firewall cross
brace
|
 |
Top cross members in place and sides squeezed to
match drawing contour. Two straight timbers clamped along the top outer
sides to produce the straight taper towards the tail
|
 |
Diagonal cross braces added along with firewall top
brace and seat belt shear brace. Commencing cut and fit work on
the bulkheads for locating the tail - horizontal and vertical
stabiliser spars.
|
 |
Center spars main and rear (Still left open). The
spar webs each have ventillation and drainage holes. |
 |
Here is my space
saver machining center. The idea came from one of the builders books -
possibly Tony Bingelis. The net result is that I have a choice of 4
machines set-up ready to use which only takes up 1 meter length of
bench space and is readily movable to suit the task in hand. The work table is 1.00 meter
square.
The work center is mounted on 4
castor wheels so it can be indexed around to suit which ever machine I
want to use and can be easily moved to wherever I need to use
it.
There are 4 machines, mounted
one per side with sufficient clearance to avoid interfering
with each other.
Power comes from a heavy duty
lead which goes to a 4 way power board underneath - each outlet has a
switch and overload protection to accept a cable from each machine fed
through a hole in the center of the work table.
The 4 machines are - band saw,
combination belt & flat disc sander, planer /
thicknesser, drill press.
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
