Safely changing bits

[mike31360]

I'm new to the CNC world and find myself more than a little concerned with the process of changing bits in my Spindle. I have many years of experience with general power tool woodworking and would never dream of changing a router bit with power cord still plugged into the wall, and yet it appears the process of changing a bit in my Stinger I Spindle is to do just that. Have I missed something along the way?

[Bruce Page]

I had the same concern when I first set up my Stinger. For me, it wasn't practical to pull the plug so I got into the habit of turning the VFD to zero each time. I have to admit, I don't even do that anymore.

[mfirlotte]

I do not do anything special. I use the FTC and change bits between toolpaths without any issues. Just make sure the spindle has indeed stopped spinning before touching or wrenching it. Never had a problem in 3 years of Stinger 1 use.

[james mcgrew]

We have had no known reports of any accidents from changing bits on the forum or any forum I have belonged to since 1995.

Now we have had a few drop a cone and bit onto a cold concrete floor and hit a foot or two !

if you want to feel extra safe close wincnc when changing if not using an ftc.

[Xray]

Finger Vs Router

http://www.camheads.org/showthread.php?t=4502

My mistake, bits can hurt you but rarely maim. Keep your hands away when spinning, should be good to go. Will not power up unless it is commanded to.

Worse drill incident I witnessed was a guy driving a 3" screw through a 2x4 with an impact drill, ended up with about 1" of screw in his palm. Not a novice either, journeyman union carpenter.
All accidents like this can and should be avoided, never be complacent or distracted while operating a spinning tool, use due caution and think things through.