Vernier Caliper Stable Base - CR-10S

The Creallity CR-10S4 is a great printer but the sheer weight on the left side of the X-Rail causes it to sag lower than the right. Until I find a way to prevent this I need to level the X-Rail before each print. To do so I use a pair of Mitutoyo Vernier calipers but I need a third hand to hold the calipers while I adjust the left and right screws.

This base locates in the v-grooves of the frame extrusions and holds the vernier caliper perfectly upright while I make the adjustments.... Biss!