Materials: cutter, pencil, glue, compass, set square, EVA panels of 3mm and 5mm thickness, and most importantly, your hands!
First step: making basic patterns of shoulder pieces, upper arms and forearms. Here 3mm EVA sheets were used as sketchpad, and other materials like paperboard or Kraft paper are also workable.
Draw patterns, after done, redo the drawing on EVA panels of 5mm thickness.
For symmetrical pieces, flip side.
Cut off the basic pieces along the line, better not to use scissors or the sunken cutting edge will lead to joint gaps when gluing.
Glue the pieces together. If the pieces need to be in tubby or curve shape, bend them with hands beforehand. This process will make gluing easier.
When finishing the main piece gluing, you can get started at making the patterns of decorative design. Draw figure lines according to the base pieces first.
Similarly, re-drawing the figure and cut them into shape.
Glue the decorative pieces and fit them with main pieces like the following picture.
Pin the rivet on the forearm pieces as pictured, while use electric soldering iron to carve the figure line of shoulder pieces.
Base coat: chassis armor paint of car use was chose, as it’s of larger granules and can greatly resemble the iron effect. Also the surface treatment of white glue paint can be saved.
If you have come to this step, congratulations! You are finishing the Genos Cyborg arm, what’s next? Put on and posing for cool photo shoot!