Thc velocity low

It's a little better with the VAD change to 70, but I think I'm demanding too much for cutting at 1200mm / min and tilting the photo about 30 degrees is not fast enough to maintain height and ends up gluing the metal. 

What are your Z axis MAX_ACCELERATION and MAX_VELOCITY values?

I attach an image with my z-axis values.  

If you are sure the voltages are correct, you could try increasing the P value in the THC settings area of the config tab from 10 to 20.  

The acceleration (750 mm/s^2) and 1200 mm/m  velocity
should allow ~0.5 mm minimum radius so that is not likely
the limiting factor.

(750 rather than 1500 mm/s^2 because only 1/2 the full acceleration is available to the THC)

Thanks for you explicatiion, Can the PID values ​​that I have in the joints affect something? In P I have 1000.