Boundary and mobile part seperated

Hi all,
I am trying to simulating tip-based nanomachining processes with tool rotation. I want to let the workpiece move in X direction and tool rotate in XZ direction. The results showed that for the workpiece, the boundary seperated with mobile part. Could anyone give me some suggestions? Thanks! Part of input file is listed below,

fix ro tol move rotate 220 160 200 0.0 1.0 0.0 0.01 units box

thermo 100
thermo_modify lost ignore temp new

timestep 0.001
run 10

velocity tol set 0.0 0.0 0.0 sum no units box
fix 1 tol nve/noforce

thermo 100

run 10

cutting with tool

velocity mobile set 10000.0 0.0 0.0 sum no units box
velocity boundary set 10000.0 0.0 0.0 sum no units box

dump 1 tol cfg 2 dump.tol..cfg id type xs ys zs vx vy vz fx fy fz
dump 2 all cfg 2 dump.all.
.cfg id type xs ys zs vx vy vz fx fy fz
thermo 100
thermo_modify lost ignore temp new
run 40

Hi all,
I am trying to simulating tip-based nanomachining processes with tool
rotation. I want to let the workpiece move in X direction and tool rotate
in XZ direction. The results showed that for the workpiece, the boundary
seperated with mobile part. Could anyone give me some suggestions? Thanks!
Part of input file is listed below,

no idea what you are saying and your small input fragment is not much
of a help either. if it doesn't work, you must be doing something
wrong. that is as good a suggestion that i can make.

axel.

Thank you for your reply, I mean, is there any way that I could let a tool rotate axis while at the same time the axis will move linearly? Could I use " fix move rotate" first and then use “velocity set” to do this? Thanks!

Thank you for your reply, I mean, is there any way that I could let a tool
rotate axis while at the same time the axis will move linearly? Could I use
" fix move rotate" first and then use "velocity set" to do this? Thanks!

no. it looks you have not fully understood the implications of using
fix move vs. "normal" time integration. fix move will move atoms on a
predetermined trajectory, no matter what. forces or velocities have no
impact. however, with the option to use variables, you can set up
pretty much any kind of motion you want.

axel.