CNC Bit slipping out of head

Snapmaker Original
1

I’ve been using the CNC to curt down though some wood (Clearing mode 1st) and find that the bit seems to slip or fall out. Now I understand that there are extra vibrations in the motor which are being fixed, as this is what is causing the bit to eventually move and fall out.

After a little research, I have tried some silicon-grease on both the bit & screw which holds the bit in. (as the screw also fell out during a cut). This seems to be working, as the grease allows for that extra little friction to keep the bit held in.

2

You might try a little blue Loctite on the set screw.

3

On mine, the bit holder got lose on the motor axcel and ofc broke the 1.5mm endmill, now i have to but locktite to secure screw AND the bitholder to the engine shaft… well i guess there will always be some misses here end there…