Quick microstepping configuration question.

[Wyvern]

Stupid simple question, this is my code.

M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation

I would like to configure E to 32 microstepping no interpolation, I see ( I ) means interpolation, If 1 means all how do I deselect E but keep the others on?

[aidar]

Like this:
M350 X16 Y16 Z16 I1
M350 E32 I0

[Wyvern]

Sweet, thanks.

There is no issue running interpolation at 32X correct? This is a Cartesian and is far from computationally demanding.

I'm getting a .9 stepper soon (direct hobbed) and will be going back to 16X, but I'm just trying to see what it does.

[dc42]

On the Duet Ethernet/WiFi, interpolation only works at x16. You can ask for interpolation at other microstepping settings, but it will be ignored.

On the Duet Maestro, interpolation works at all microstepping settings.

[Wyvern]

@dc42

Cool, thanks, so technically I can just change E on that one line of code and all is well?

[dc42]

@wyvern said in Quick microstepping configuration question.:

@dc42

Cool, thanks, so technically I can just change E on that one line of code and all is well?

Yes.

[Wyvern]

Cool.

The second you answered me, the mail truck just delivered my new stepper, go figure! E3D doesn't grind a flat in their shafts!?

Thanks, I will try posting results 16X 32X 1.8 deg, and 16X .9 deg.

[Wyvern]

So I did the tests, need to take some pics still, but;

1.8 16x interpolation- good results some minor banding when shining light above it- naked eye it looks great.
1.8 32X no interpolation- OK results, fares worse than 16X, looks like a normal ramps board printed it.
.9 16X interpolation- best results so far, only slightly better than 16X 1.8.

I will say with the .9 stepper cranked to 1.4A (max 1.7) it gets pretty noisy on the retract/prime, but 1A exhibits skipped steps.

currently adjusting steps/mm It seems like it extrudes just a tiny bit more when simply doubling the stepps/mm