Duet3 1LC 1.0 vs 1.1

RyanP

I recently purchased a 1LC board from my local dealer (digitmakers in Toronto).

The board I was provided was the 1.0 board.

I've heard that the 1.1 board is needed to utilize an accelerometer. If true, Should I be asking for them to replace it with the 1.1 board?

jens55

@ryanp, I would .... ver 1.1 has been shipping for a while now. Ver 1.0 does not have an accelerometer on it.

engikeneer

@ryanp v1.1 has the accelerometer built-in. If you have a v1.0 you can still get a separate accelerometer chip and hook it up

o_lampe

@engikeneer said in Duet3 1LC 1.0 vs 1.1:

@ryanp v1.1 has the accelerometer built-in. If you have a v1.0 you can still get a separate accelerometer chip and hook it up

Which is the more versatile option IMHO. Even dc42 mentioned, it would make sense to measure hotend versa bed ringing.
How would you do that with 1.1?

dc42

@o_lampe said in Duet3 1LC 1.0 vs 1.1:

Even dc42 mentioned, it would make sense to measure hotend versa bed ringing.

That's on a bed slinger style of printer.

aniron

@dc42 how do you best use that information, though? IF I am not mistaken, you still need to select a single frequency for suppression, not separate ones per axis?

Do you pick the highest amplitude, the average of the peaks, or something else?

Or is this meant for upcoming features?

dc42

@aniron said in Duet3 1LC 1.0 vs 1.1:

@dc42 how do you best use that information, though? IF I am not mistaken, you still need to select a single frequency for suppression, not separate ones per axis?

Do you pick the highest amplitude, the average of the peaks, or something else?

Or is this meant for upcoming features?

In the immediate future, you will either pick the frequency with the worst ringing, or a shaper that provides reasonable suppression at both frequencies.

We will probably offer the ability to configure different frequencies on X and Y axes in future, at least on Cartesian printers (It's much more complicated to implement on CoreXY).