Z Drift down

[GlenP]

Well the new PRS is up and running and having some fun. I just got my dust collection hooked up today and notice that my "z" drifts down a couple of inches when you turn off the shopbot controller. It didn't do this untill I added the dust skirt. I realize I could call shopbot and ask or get stronger springs but is it really a problem. It holds when powered. No sure if I should bother getting stronger ones.
GLen

[paco]

Ideally, the Z axis spring would hold the weight and stay. The worse being that it suddenly drop when powered off and break a tool bit or damage a work piece.

[knight_toolworks]

mine did this too thought I have last years model. but the spindle seldom if ever drops after use anymore.