Is anyone using stall detection on the DuetWifi?

3D Printing HercuLien and Eustathios
1

Is anyone using stall detection on the DuetWifi?
I’ve just set it up for logging only and tweaked it to not get any false alerts.

I’m using
M915 P0:1 S3 F1 H400 R1

https://duet3d.dozuki.com/Wiki/Stall_detection_and_sensorless_homing

Update: I just had it trigger on a print and it saved the day. It works really well (using R2, which pauses the print, R3 will re-home and continue)

2

This was one feature that I really liked in the prusa mk3, interested to see how useful it is in practice!

3

I have mine dialed up to flag and log suspected stalls, actual stalls haven’t happened. Word is sensorless homing works within a specific range of belt tension, so it might require some tuning. I think my cars might have too much drag for it to work.

4

I’m not wanting to use it for homing, just stall detection during printing. I do print a lot of PET CF and that tends to build up on the nozzle and sometimes catches…

5

What nozzle do you use? I find that Micro-Swiss nozzles are pretty good at resisting PETG booger buildup.

6

I’m using E3D nozzles. Normal PET(G) is totally fine, it’s only XT-CF that builds up (on a hardened 0.4 nozzle)

7

Would be interesting to see if the Olsson Ruby is any better with that…

8

Ruby might be OK. The thing is partly the geometry and Ruby’s tip seems an OK shape and size. I just consider the E3D style geometry to be too blunt, a finer tip seems to resist boogers.