#Input Shaper

We already discussed the unsupported MGN12H X-rail on the M0 and how the frequency drop was slightly more pronounced in the middle than I’m used to with my 300mm and Carbonara. Fortunately, I had a spare 5mm-thick bed mounting plate that I could cut and drill to make a simple backer for the middle of the rail. Three holes are directly from the rail, and the additional two also sandwich the XY joints…

We haven’t observed a significant increase in frequency with the all-metal gantry compared to the enhanced FDM one, which makes sense since the moving mass is probably heavier, offsetting the rigidity increase…

We've talked a lot about stepper currents affecting input shaper results, so I wanted to make a post that covers it specifically…

Last time, I think it wasn't completely clear: the rail sizes here are for the Y-axis. The X-axis in both cases is MGN12H…

I've decided to post second one right after the first for easier comparison…

Here's the first set of graphs from my M0 prototype after a day of tinkering. Currently, the parts designed for SLM or laser cutting are printed in very wet ASA/ABS CF, so I wasn't really expecting anything usable here…

I'm now testing the LDO gantry kit in its 2WD config, and I have to say I'm quite impressed by the simplicity and the low noise level compared to AWD…

Removing my abused sheet metal XY joints was a walk in the park. I'm still happy about how well these held up to the countless rebuilds and even the 12mm conversion…

Almost 2 years ago when I started developing the gantry and I didn't know why my graphs were looking like shit, I got into the habit of filming my IS (Input Shaper) runs in slow-mo…

Unfortunately, I've only been able to do 12mm AWD testing and it would make more sense to do this in a more belt-bottlenecked scenario. Similarly to CPU gaming performance testing, one should run the tests with the best available GPU and in 1080p with low graphics settings…