A mod to make z-azix more stiff and easier to adjust

X-Carve Upgrades
4

Hi @Peter_Jakab - I’ll try to answer your question here.

Here’s a shot at documenting my assembly/adjustment procedure for the modified z-axis v-wheel assemblies shown in the picture at the top of this thread.

  1. tighten the M5 bolt and first nylock nut firmly onto each z-axis v-wheel (4), this nut should never need to be adjusted again

  2. assemble the remaining nut-washer-stack and attach the v-wheel assembly’s to the spindle-plate

  3. rotate the eccentric-nuts into the open position and tighten them to just snug on the spindle plate (note: the two eccentric-nut v-wheel assemblies are on the other side, not visible in the picture)

  4. mount the spindle-plate to the z-axis maker slide; this is awkward, resting the collect on a block of wood helps

  5. with wrenches on either side of the spindle-plate, working them together, rotate the eccentric-nut to make the v-wheels squeeze the makerslide; I set them so it takes firm thumb pressure on the v-wheel to make them slip

  6. working both wrenches again, tighten the nuts to squeeze then spindle-plate firmly, while keeping the eccentric-nut in its optimal position

With the parts I selected, there was no binding in the z-axis lead screw. But if there was, the spindle-plate spacing could be adjusted by choosing a different width washer. After 10 hours of cutting since installing this mod, no readjustment has been necessary. Before, I was readjusting the z-axis v-wheels after every job.

1 Like