We were still searching the materials. But this time, we went to find a material for covering the robotic arm to make an attractive surface. Finally, we bought a roll of thick wool snowflake chunky to scroll the robotic arm and hide the cables. Hopefully it could make the arm looked softer, more relax and casual.
Also we were looking for a "Alternate Current to Direct Current" adapter to make a continuous power support instead of batteries.
Also we were looking for a "Alternate Current to Direct Current" adapter to make a continuous power support instead of batteries.