32mm spool mount for Vellemann Vertex K8400

thingiverse

This adapter fits on the original spool mount of your Vertex K8400 printer, one at each side. Remove the two black halves of your spool mount and attach this piece directly to the bearings below. It's a small cylinder with spikes that prevent it from slipping off the screw and bearings. You may need to use a file to get a snug fit over these bearings. I used this adapter for my Taulmann Nylon spools, but check if the 32mm diameter is still suitable or if your spools have an even smaller center diameter now.