How easy to swap out Maestro for Duet 2 Wifi?

Blacksheep99

I'm considering swapping out my Maestro for a spare Duet 2 Wifi I have and wanted to understand how easy (or difficult) this should be. The printer isn't anything fancy, single direct drive extruder, BLtouch style z probe, switch endstops, single motors for XYZ.

I'm keen on the forthcoming input shaping in 3.4 and it seems the Maestro wont support this hence my reason for considering the swap.

I know there will be a need to update some pins etc in my config but in the main it should transport over?

Thanks.

jay_s_uk

@blacksheep99
Should be 95% install and go

Blacksheep99

@jay_s_uk Thanks. I thought this would be the case, just good to sanity check.

droftarts

@blacksheep99 Should be pretty straightforward, as wiring is largely in the same place (unlike the Duet 3 Mini 5+!). The main things are that you can't use the Probe MOD pin on Duet 2 WiFi for BLTouch, so it's wired differently (see here), the VIN and Bed screw terminals are different (ferrules will fit in them, but the forked crimp terminals are better), and if your hot end heater is using the pins to connect to the Maestro, you'll need to use the screw gates on Duet 2 WiFi (replace crimps with ferrules on the heater wires). You also lose using stealthchop (WiFi is spreadcycle only) and x256 interpolation at every microstepping level. But you gain higher current stepper drivers.

Ian

Blacksheep99

@droftarts said in How easy to swap out Maestro for Duet 2 Wifi?:

@blacksheep99 Should be pretty straightforward, as wiring is largely in the same place (unlike the Duet 3 Mini 5+!). The main things are that you can't use the Probe MOD pin on Duet 2 WiFi for BLTouch, so it's wired differently (see here), the VIN and Bed screw terminals are different (ferrules will fit in them, but the forked crimp terminals are better), and if your hot end heater is using the pins to connect to the Maestro, you'll need to use the screw gates on Duet 2 WiFi (replace crimps with ferrules on the heater wires). You also lose using stealthchop (WiFi is spreadcycle only) and x256 interpolation at every microstepping level. But you gain higher current stepper drivers.

Ian

Thanks Ian, what is the actual impact of this then?

droftarts

@blacksheep99 The TMC2660 on the WiFi only has interpolation at x16 microstepping. If you use other microstepping values, no interpolation. Motors will be a little noisier, and less smooth moving between steps. But it's pretty marginal; I'd say interpolation is a 'nice to have', not a 'must have', and it's not a problem if you use x16 microstepping, as both Maestro and WiFi have it at this setting.

Ian

pixelpieper

@blacksheep99 Maybe wait until we know whether IS will also work on the duet 2 wifi - as far as i understood the wifi is fairly limited in remaining free program space which could become an issue...

Blacksheep99

@pixelpieper good point. I'm in no rush to swap out as I have it working well as it is. IS is one feature though I think should improve my print quality as the print head has some weight to the carriage. Thanks.

Phaedrux

I would be very surprised if input shaping doesn't reach the Duet 2 wifi.

dc42

Input shaping is currently compiling for the Duet WiFi leaving 10kb flash memory free. That should be more than enough to finish it.

Blacksheep99

@dc42 said in How easy to swap out Maestro for Duet 2 Wifi?:

Input shaping is currently compiling for the Duet WiFi leaving 10kb flash memory free. That should be more than enough to finish it.

That's great to hear. Thanks