I don't normally post pictures of the trash but this may be of help to others.

I recently replaced the flexible coupling on my Y Axis and everything was fine until I cut this piece (which was profiled in two passes with a 30 degree engraving point).
The new coupling was bored 1/4" and the motor shaft is 6mm - what I thought was tight obviously wasn't (but it is now  ).

Tweakie.

See this is what happens if you send a boy to do a man's job 

Ian

 

Tweakie.

Looks perfect to me.

Sorry for the short reply but I have to rush out, have  an appointment at specsavers


Hood

I think you put too much demagnetism back in the coupler. I think You are getting close to creating a flux capacitor.

(;-) TP

If it makes you feel any better, there's not enough forum space to show all the things that I have sent to the graveyard.

 

Tweakie.

No tools actually broken?
No worries.

Cheers

That's an new way to create the 3D shadow effect.

 

In many ways it was extremely fortunate (for me) that I found this problem whilst profiling engraving laminate just 2mm deep. It could have been a whole lot worse if it had happened whilst VCarving an expensive piece of Teak. 

Tweakie.