Yup, fully understand. Just an interim testing situation. I have a crydom SSR if to keep it at 12VDC if needed, just don't feel like messing around having two supplies at the moment. I need a 310mm bed to fit my max metal frame and would prefer something of quality. Not having any luck trying to find an Onyx except for some with a funky resistance on seemecnc.

@dc42:

I have heard that Nema 23 motors vibrate much more than Nema 17. Have you tried the same motor on the Duet 0.8.5?

Yep, this is the machine that started life with the 0.8.5 board.
I do not recall noticing this issue with that board however i also wasn't printing a slow as I am atm as i sort out print speeds with the 0.6mm nozzle.
It would seem that the speed combinations are crossing over the mid band resonance of the nema23's.
One poitn though is I may not have noticed it with the old board due to the greater noise in general….. the DuetWifi is just so quiet.

@dc42:

To turn off microstep interpolation use the M350 command, see http://reprap.org/wiki/G-code#M350:_Set_microstepping_mode. You can try increasing microstepping to x32, x64 or greater as well.

Thanks for that, i'll try a few of those tomorrow after this print finishes.

Cheers and Thanks Dave

Thanks !

@dc42:

If you haven't started that yet, you might like to try the 1.15 beta 3 release for the wired Duet that I just put on github.

sorry David, was sort of warmish today so got on with it, going to update the other thread with some details.

Cheers

Fantastic news. Are you seeing improvements due to the on-board FPU? These figures are approaching the performance specs of some rather pricey CNC controllers (KFLOP, to be exact), this is very exciting.

@deckingman:

If you are looking for quiet fans, I've always found this to be a good place to look https://www.quietpc.com/casefans. Even if you don't buy from them, it's a good source for information on airflows, noise etc.

Thanks! I use this site for a long time. Last time I found on it a quiet nice Gelid Solutions Silent 4 for my previous kossel build.