posts/2023-03-22-install_adxl345_calibrate_inputshaper_sidwinder_x2/

[utterances-bot]

Perfect input shaping - Install the ADXL345 accelerometer on Artillery Sidewinder/Genius Pro | freakyDude's Blog

About installing the ADXL345 accelerometer to calibrate easily input shaping for an Artillery Sidewinder with Klipper firmware.

https://blog.freakydu.de/posts/2023-03-22-install_adxl345_calibrate_inputshaper_sidwinder_x2/

[Paradisebaker]

Hi Freaky I kind of miss the placement of the accelerometer on the bed for a more exact measurement of the Y axis. you only specify the mounting on the print head and measure both axis that way. I followed your instructions (very good ones) for X, but then adapted it for Y, following the recommendations on the Klipper site. (https://www.klipper3d.org/Measuring_Resonances.html), where it has a specific section for bed slingers. Following those instructions, I got very different results for my Y axis, unfortunately much lower possible acceleration due to my custom aluminium bed and the resulting weight. just thought I let you know

[freakydude]

Hi @Paradisebaker

Thank you for this additional information - in fact I had this not on my radar. So I directly made an ADXL345 mount for the sidewinder heater bed and did the calibrations like suggested this afternoon.

In fact, the differences of the resulting suggestion where not so huge: Y on Toolhead

Y on Heaterbed

But the second spike of response frequencies is gone. To be honest - I don't know yet, what is the reason for measure the frequency on bed slingers for Y on the heater bed itself. Would expect, that the vibrations on the nozzle are the most relevant.

Do you have more information about this?

Anyway, thanks for your comment. I should update the blog post ...

Best regards

[Paradisebaker]

I am not sure if I misunderstand you, but my notion is that X should be measured on the extruder (with your mount, it is just perfect) and Y should be measured on the heatbed, as that is where Y will be vibrating the most.

[freakydude]

I am not sure if I misunderstand you, but my notion is that X should be measured on the extruder (with your mount, it is just perfect) and Y should be measured on the heatbed, as that is where Y will be vibrating the most.

Yes you are right, I fixed my last comment. I mixed up x and y in description. You have to measure Y directly on your heater bed - not x of course.

I also added a small heater bed mount. You can clamp the extruder mount to the heater bed mount and the both to the heater bed ;-) Use a tape between if it still wobbles.