Qtdragon_hd Zero button not zeroing

If you zero again, does the small values stay the same?

Yes it does, if I jog the axis it will change. It doesnt seem to be realted as to how far I jog, the axis just has to move, even 0.1mm

Hi, Apologies, did some more testing. If I start at ABS of Zero then Job axis 5mm at a time slowly (ie 100mm/min) every 3rd or 4th jog the counter will increment by .001 ie instead of reading 15.000 it will read 15.001, then if I keep joging it will then stay with the .001 until 35 then it will read 35.002.After some more testing here are my job results (jogging at 30mm/min and incr of 5mm)starts at ABS 0 G54=00->5->10->15->20->25.001->20->25.001->20->25.001->20->25.001->30.001...all .001 till 70.002jogging -ve from 70.002->65.001 ...all .001 til 25.000 .. all the way back to 0.000Feels like some sort of rounding / fp / devision error creaping inI have attached a HALShow screen - after joggin in cnrements of 5mm the first count was correct at 6400, then after a few it added an extra count then another at 30mm so now shows 30.001 as it must be rounding upHope this helps

 

yes I bet that's it. I notice you are using metric, so .006 is pretty small.
I'll try to track down where the rounding error comes from.

Thanks Chris,

I also notice previously I had 0 as deadband and the steppers all worked well. With 0 now they hunt 0.000 to 0.001 so are contstanly vibrating. I had to set the deadband to 0.001 to stop it. There are 6400 pules per rev and each rev is 5mm.

If you need anymore info please let me know.

Regards