Parts #17 - Contains ribs #25 & #26, wingtip ribs #1 & #4, wingtip castings 1 & 2, hinges, screws, ribs 'F' & 'R' and a set of Zero blueprints.
As with the previous ribs, prepare and label ribs #25 & #26.
Cut three lengths of truss, 3mm, 9mm and 10mm.
Cut and shape three lengths of tube, 2.5mm, 5mm and 5.5mm (when crimping the 2.5mm length, just crush the very tip of the tube at both ends).
Glue the truss and tube sections to rib #25
Layout all of the wing tip ribs, then remove the part numbers as with the wing ribs. Be careful not to remove the projections.
Identify ribs 'F' & 'R', then using a 0.7mm bit, drill a hole at the marked the points on both ribs.
Secure the hinges to both ribs with 4 micro screws, make sure that each hinge is correctly identified for its corresponding rib.
Fit rib #2 and rib 'F' together, ensure that they are fully seated and sat square, then run a small amount of liquid superglue into the joints (via a cocktail stick) to set the assembly. Then add rib 'R' to the assembly, followed by ribs #3 and #1, all glued in a similar manner.
Remove any burrs from wing edge castings 1 & 2.
Identify casting #1 and its central separation point. Use a fine needle file to score the centre line to a point where it is thin enough to break in two at the marked point, then Identify 'A 'and 'B' from the cut length and smooth the cut ends.
Test fit casting #2 onto the wing tip assembly, and glue into place.
Test fit casting 'B' onto the wing tip assembly, and glue into place.
Lightly score part #4 at the fold point, then carefully fold to form an 'L' shape which matches the profile shown in the step diagram.
Test fit the shape in place, ensure that it engages with the step and the projection, then glue into place.
Glue casting 'A' to the front of rib #25, locating the projection on the casting through the hole in the front of the rib, ensure that the casting is located onto the correct side of the rib (opposite side to the truss & tube sectrions).
Finally, temporarily fit rib #28 into the last slots of the wingframe.
That's it for this stage, carefully store rib #26, the wing tip assembly and wingframe.
Future parts sets: Parts #18 - Contains the right (starboard) wing main and rear spars, rib #2 & #12 and rocker boxes.
Parts #19 - Contains the right (starboard) wing frame, engine rings, screws, rod, spark plugs and wing rib #1
Parts #20 - Contains the right (starboard) wing ribs #3 & #4, engine firewall plates A, B & C and the electrode ring.
Tomick attached the following image(s):