Check cut motor

[davidbf]

Can someone help ? When my machine starts to cut, it stops and shows "CHECK CUT MOTOR HIT ENTER TO PROCED" I hit enter and everything carves. The cut motor seams to be working fine and the shaft is lubed good. I vacuumed the machine and the motor as good as I can after every use and keep everything lubed.
Thanks
Davidbf

[RMarkey]

The cut motor reports the RPM to the controller on the machine. If the cutmotor's RPM is not the correct speed, or if it is not reporting at all, this error comes up. Pressing enter will run the cutmotor in a 'best-guess' mode of power control (versus monitoring and adjusting power based on desired RPM speed).

[Digitalwoodshop]

This is a normal quirk in the machine. Even I have it... As I understand it, the machine looks at the RPM at the beginning of a carve and as the machine ages the RPM is slower... Slightly slower... The machine calls "TILT" and gives you the warning... Press enter and all is back to normal but you may hear the machine speed up...

When I was cutting the many sheets of plastic I would hold my fingers over the motor muffler for 20 seconds at the start of the carve and induce a quicker CCM (Check Cut Motor) just to get it over with... so I could get back to work... This happened when I shut off the machine between projects. What I did find by accident was that if I left the power on while I setup the next carve, when the machine got to the normal CCM point, the machine would NOT FAULT but just speed up....

It is my unofficial theory that your machine a 2009 I believe, has a worn copper commutator that is smaller in diameter. This in theory may make the motor run slower... just a throry... Newer motors run normal speed.... Hence... "Post like... I never have CCM...".

Then you have Flex Shaft Drag... or resistance....

So it is semi normal... Only doing it on the first bit of a carve... even a 2 sided carve.... first bit back side only.

AL

Edit: Did not see post above until after I posted. That is the official and correct answer from #1. :)

[RMarkey]

Not necessarily slower, maybe not reporting at all. Go to the check sensors menu (0-8 on the machine), scroll to the cutmotor reading, then spin the bit.

[Digitalwoodshop]

Not necessarily slower, maybe not reporting at all. Go to the check sensors menu (0-8 on the machine), scroll to the cutmotor reading, then spin the bit.

In my case the magnet and sensor are working as seen on the check sensor. But way back in 2007 when the magnet was thrown from the cut motor you would get CCM all the time. The plastic retainer fixed that. My yellow heat shrink was a fail very quickly.

I believe my excess lubrication of the flex and the solvent in the lube was the reason for the early fail. We have learned much since 2007.

:) AL

[davidbf]

Thanks for the help. The RPM thing makes since but I will check the magnet anyway. HAPPY CARVING and may everyone be better tomorrow than they were today.
David