RepRapFirmware 2.02RC7 available

Irwayz

@dc42 Thank you very much.

brandonh

David, thanks for all the work you've done to make Dynamic Acceleration Adjustment (M593) available. Seriously, if you're ever in the Bay Area, I'm buying the beer (or offering my homebrews).

I've spent hours and dollars making changes to my large Kossel to chase out ringing issues, as documented here:
https://groups.google.com/forum/#!topic/deltabot/d_JHfa4qFck
... changing out the frame (1515 -> 2020), carriages, effector (printed -> Smart Effector), rods, extruder style (bowden -> flying), cooling, 12v->24v, hotend, you name it.

In 10 minutes, with a single command (M593 F51.6), I have possibly the single most obvious print-quality bump I've seen in 5 years on this printer. The pic below is a 10mm double-wall multi-test cube print; the face shown is one where the head makes a long travel move to the shown left face, then moves right, for a 40 mm/s external perimeter.

The motion is not 100% gone, but it's obviously vastly reduced. I don't know if this is due to frame flex, rod flex, the weight of the extruder connected via a bowden time above, or something else. But whatever, it's really good now. Going to try out pressure advance next.

Also, I'm very excited that the WiFi continuously tries reconnecting in post-2.0.0 builds! That was the single biggest annoyance from the past. The upgrade to 2.0.2RC7 is great.

(The original thread covering this is locked - including this link for anyone who comes across this post):
https://forum.duet3d.com/topic/5951/periodicity-of-ringing

spunone69

@dc42 It was 2.01, I realized I had to install 2.02 RC2 first...

Marine85

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dc42

@brandonh, thanks for the feedback! I'm glad it is working well for you. May I re-post your before/after image elsewhere?

Danal

@brandonh said in RepRapFirmware 2.02RC7 available:

Just for my curiosity and to reproduce the "exact test", I'd like to print this on my BFD (Big Fast Delta). Would you mind posting the STL and G-Code?

If you don't want to post (or don't have a good place), I am danal (dot) estes (at) gmail (dot) com

Thanks!!

Phaedrux

My results haven't been that dramatic, but I definitely think it's made an improvement. I think it's complicated by the XY weight difference on CoreXY mainly. @dc42 is there a way it could be expended to allow more than 1 frequency to be canceled?

brandonh

@dc42 Sure, go ahead

brandonh

@danal

The STL is here (not mine):

https://www.thingiverse.com/thing:1159886

I got these results with 1 or 2 perimeters and a few mm of brim to keep the boxes together, using Slic3r PE 1.41.2. I assure you there's nothing interesting in my g-code.

The only change between those two was the addition of M593 F51.6 to the config.g file and running this beforehand.

Danal

@brandonh Thanks! I'll try this on a couple of deltas with duets. Will be a little while, both in long prints right now.

roth

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