Firmware 3.2.2 - Support input shaping without accelerometer?
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So long story short, I updated my DD Ender 3 to Klipper with input shaping, simply calculated the frequencies using the formula they have documented and I'm thoroughly impressed. I'm now able to print at 200mm/s with 5k accel and almost no ringing.
I wanna try with my HEVO and Duet board with firmware 3.2.2, is it possible or do I have to update firmware and am I required to use an accelerometer to use input shaping with RRF?
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You would need to use he 3.4 beta 2 release to get access to the input shaping feature. You only need the accelerometer for taking measurements. The actual configuration of the input shaper parameters is done with M593
https://duet3d.dozuki.com/Wiki/Gcode?revisionid=HEAD#Section_M593_Configure_Input_Shaping
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Thank you for the quick reply - since I'm using the HEVO to build the Voron at the minute, I guess I'll wait to implement this as I've read the move from 3.2 to higher can be a bit tricky.
Thanks again !
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@tsitalon1
I'm using RRF3.3 with DAA input shaper. It's a stable build and shows some difference against no input shaping. I used the caliper method to figure out the frequency, but fine tuning requires printing a ringing tower and alter the IS settings on the fly. -
@tsitalon1 said in Firmware 3.2.2 - Support input shaping without accelerometer?:
I've read the move from 3.2 to higher can be a bit tricky.
Not really. Nothing has changed in the config syntax. The only change that might get you is the creation of the new firmware folder on the SD card, but if you upload the complete zip file for 3.3 it should take care of it all. Then updating to the 3.4 beta2 is just a matter of uploading the firmware bin file for your board.
https://github.com/Duet3D/RepRapFirmware/releases/download/3.3/Duet2and3Firmware-3.3.zip
https://github.com/Duet3D/RepRapFirmware/releases/tag/3.4.0beta2-not-Maestro