Re: SmoothieWare Compatible Mainboards

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JustAnotherOne

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Traumflug
Obviously. If you had said 32-bit controllers are faster and allow higher printing speeds on more complex setups, I had even agreed.

So here we have it. You both agree that faster clocked chips can achieve higher step rates and support more complex setups.

Yep, we clearly agree on that, as it's obvious.
But he goes further than that. He implies that a higher step rate and more complex setups are the -only- benefits from the Smoothie system, when they are in fact not.

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Traumflug
But you don't and use wobbly words like "smoother" or "better" instead.

See ?

Smoothie is actually in fact smoother ( you can tell from the name that it was actually an intended goal ). We can break arcs into smaller segments, we can do better planning math, better acceleration, better step generation, we do many things in a way that is -in fact- better.

Just an example : Smoothie does not just do "faster" step generation, it does "better" step generation : the step interrupt is run at a constant 100khz and the other axes follow that, resulting into smoother ( smoother here means "less rough", or if you prefer "closer to an ideal theoretical step pulse", is that still too "wobbly" of a term ??? ) step generation compared to the classical bresenham step generation ( where slower axes follow the faster axis ).

And that's just one thing amongst many others. Combined, all these result in faster, quieter, more "correct" ( again as in : closer to ideal ) printing with less artifacts.

And that's just the planning/step generation, here I'm ignoring the many many actual additional features. And that's ignoring the fact that the more powerful chip -also- allows us to make a firmware that also supports CNC routers and laser cutters, resulting in a wider ( as in : more diverse ) community, resulting in more collaboration/contributions, which in my eyes, has a -lot- of value.
I'm also ignoring the fact that technically, being "faster" also potentially means being "smoother" as it allows for higher microstepping ( which lots of people seem interrested in lately ).

Years of work has gone into taking better benefit of the more powerful chip.