Input shaping help
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Hello,
I need help with input shaping. I have rf3.4 on my duet3 mini5 wifi. I installed an accelometer and activated it with the command M955 P0 C"io2.out+io2.in". After that I entered this command, X-50 G4 S2 G1 X50 F20000 M400 M956 P0 S1000 A0. The tool head has moved once to the left and right. Is that correct? Is that enough for all directions? Then I started the plugin and a graphical display. What do I do now as the next step? I don't really understand the M593 command. An accelometer .csv file has been created in my config files. The instructions are really not good. Do I have to do that in y now too?
Thanks and greetings from germany
Marc
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@jamaicarasta don't use that plugin, use this one https://github.com/Duet3D/InputShapingPlugin/releases
and here is the supporting information https://docs.duet3d.com/en/User_manual/Tuning/Input_shaping_pluginOwns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is
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@jay_s_uk Thanks i will try it
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@jay_s_ukWhat speed should be set in the config? I mean movement speed.
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@jamaicarasta the maximum speed your machine can move at
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@jay_s_uk ok and jerk?
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@jamaicarasta just leave them at what you print at. klipper usually recommends around 5mm/s
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@jay_s_uk Ok now i have it. What now? M593 P"zvd" F41 write in my config? Is that for x and y?
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@jamaicarasta you're best off recording without any input shaper applied first and then see what affect each one has.
then yes, add whatever you choose to config.g and its its applied to both X and Y -
@jay_s_uk Ok first test with none, than look what is the flattest curve?
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@jamaicarasta yes, but try and avoid ei2 and ei3 as they can slow down the print
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@jay_s_uk Ok, what is the fastest shaper? than i will try it first with a test print
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@jamaicarasta work down the list, so MZV, ZVD etc
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@jay_s_uk and what is the center shaper hz?
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@jamaicarasta thats the frequency in the input shaping is applied around. so you want to pick either the largest peak if you only have one or the middle of the peaks. the plugin will show you how much it thinks the peaks will be reduced by
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@jay_s_uk ok,but with the command M593 I enter the value 41hz which is displayed in my file on the left, right? But where is the center shaper entered?
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@jamaicarasta there is a box on the right to set the centre frequency value.
Most of the input shapers are centred around this value (MZV isn't)Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is
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@jay_s_uk ok
I will try M593 P"MZV" F41 and make a test print.
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@jay_s_uk ok i understand, i must activate the hook when i change the center frequency
