Jobs ruined after long run

**BernieNUFC** · 20-03-2016

3D Finish.zip

Hi Jazzcnc
Thats a very comprehensive reply and very thorough thank you, i will start doing the checks you mention, in the mean time i have attached the NC file.
The machine has probably done less than 50 hours since new so i dont think there should be any parts that are ready to fail just yet, well there better not be.....:-)
I am using WinPC-NC and the settings defaulted for the 720 so i am not sure where to start checking micro stepping.
No loose connections as i have just relocated it and made everything a much better and tighter setup.

Thanks again
Bernie

**JAZZCNC** · 20-03-2016

Originally Posted by BernieNUFC

No loose connections as i have just relocated it and made everything a much better and tighter setup.

This makes me suspicous not re-assured.!! . . . . Did it do this before Relocating.?

Also Just because machine isn't very old doesn't mean it can't hit trouble. Infact it's about the right amount of hours when things could come loose and need tightening after settling down.!

**BernieNUFC** · 20-03-2016

No it did not do it before the move but equally i did not do these files only the very short work jobs.

I can understand about the bedding in fact last week after the first incident i gave it a good checkover just in case but could not find what might have caused the initial fail

**JAZZCNC** · 20-03-2016

quick look at the code shows no issues so not that.

**BernieNUFC** · 20-03-2016

Checked every Allen key bolt, every screw and removed covers to check wiring etc, went through every connector to controller and then to PC, everything is tight now, only one screw holding an earth wire was loose enough to take a nip up.

**JAZZCNC** · 21-03-2016

Originally Posted by BernieNUFC

Checked every Allen key bolt, every screw and removed covers to check wiring etc, went through every connector to controller and then to PC, everything is tight now, only one screw holding an earth wire was loose enough to take a nip up.

Have you checked for any axes binding. This is mostly likely cause.

After checking this I suggest you try running the same G-code at different feedrates to test if resonance is the cause. If it runs fine at lower feed rates and at higher feedrates then it's most likely Mid band resonance.