Eezybotarm MK2 Extended

I was just wanting to extend the arms and make something that could use maybe as a fun thing to give a back massage. I was learning and using new techniques like the bending arms, dove tails, compression fit tolerances, gears and ratios and generally designing. The design works pretty good so far. Originally the arms were too long and the small motors would fail. Then I realized I needed a stronger power supply which helped but fully extended would still fail. Rather than buying more expensive motors, I decided to see if I could use gear ratios because I only need 90 degrees of the 180 the motors have so i built a way to use 1:2 gears. I used ideas but no parts from the MK2 Plus variation. The nice part about this is that it uses the same motors rather than the upgraded ones. After looking into it, the torque is actually strong on these little cheap motors so I wanted to see if it would work. Just adding the length. Using the dovetail technique and a little super glue, I had both the h