Extruder Head Wobble Fix
this moves the bottom Teflon retainer block on the x-axis carriage to a spring loaded arm. Using it, the head no longer wobbles when I'm printing near the back of the print bed, which occurred previously due to force from the cable assembly. The image is kind of deceiving. The spring is made of very fine wire about 0.7 oz of force. This isn't the same as the z-axis wobble, which is a separate issue.