Preparation for assembly
KRAGA Roa II plane consists of parts that are printed and parts that you need to buy separately
(they are not included in sold product) – carbon tubes and pinned hinges.
List of required parts:
dimensions
count
carbon tube
⌀
2x1 mm 1 m
10
carbon tube
⌀
3x2 mm 1 m
5
*
carbon tube
⌀
4x3 mm 1 m
4
carbon tube
⌀
6x4 mm 1 m
2
carbon tube
⌀
8x6 mm 1 m
3
carbon tube
⌀
10x8 mm 1 m
4
carbon tube (woven)
⌀
14x12 mm 800 mm
1
covering film
4 m
1
pinned hinge
↕
16x28x1.2mm
26
folding propeller
13 x 8 in
1
spinner
⌀
45 mm
1
screw
M2 8mm
22
⌀
2x1 mm – means tube with outer diameter of 2mm and inner diameter of 1mm
* 2 pieces of 3x2 mm carbon tube are meant to be used for tail linkage with threaded couplers and metal clevises
And of course you need all the common accessories like clevises, push rods (horns are printed so
you don't need those) and servo extension cables (2 pieces of 90 cm cable for aileron servos). One
way how to make custom pushrods is using 2x1 mm (or 3x2 mm) carbon tube glued into threaded
couplers and screwed into metal clevises (picture below).
Next step is to cut carbon tubes and rods into smaller pieces, which will be used as spars, joiners or
boom of the plane. Don't forget to mark every piece to avoid confusion during the assembly.