Re-started carve

[DocWheeler]

I was not sure where to start this thread. (1) I wanted to commend LHR for the precision that this machine can do. (2) I wanted to show my latest re-carve. (3) I wanted to show the problem that required a re-carve.

Not sure what caused the belt to tear, but it looks like the slide-plate caught it somehow.

Caused an X-stall without hurting anything else.

I was creating a double-sided sign for a friend that I use to work with; the signs fit his attitude well!

The stall occurred soon after it started the letters "g" and "s" on the second side of the sign (separate mpcs). I restarted in the space before the letters using the tried-and-true method of creating an mpc with a zero depth region over the part that was okay. I was pleased that it indexed so well on the lettering.

As the belt wrinkled-up under the board, it raised it up into the bit.
I have two machines, one I intended to keep and one I planned to sell. After the stall, I switched to the newer machine.


I had cleaned out the encoder not long ago on my older machine, but after using both machines on the same board it looks like it is dirty again - note the difference in the backgrounds.

[rmock]

Thanks for sharing, we have had to do this several times also, not for the belt but usually for bearings or brushes. The last time I had lines like that was due to the z truck bearings needing tightened.

[DocWheeler]

Thanks for your response. I'm scratching my head about the Z-axis bearings causing a depth problem, that would seem to allow Y and Z movement to the bit-end rather than a change in depth. Help me understand that please.

[rmock]

I think it allows the bit to push and pull at the tip slightly, causing lines in the carve.

[DocWheeler]

Thanks, I'll check it out.