Lulzbot Taz 5 Spool Arm

I noticed some dragging on my Taz 5 spool arm. I didnt like anyone elses ideas I found online. I really like the stock mounting location on the Taz and I like how it pivots a little. So I cut up a taz arm and combined it with the idea "mde091234" had going of using a screw rod.

My screw rod is a little bigger than 7mm. it fits nicely in the 608z bearings i have. i have 2 washer, 1 nut, and 1 locking nylon nut. a wing nut would be nice to substitute the outside nut.

you will need the rod, a