Hi forum members.
We have completed the SW porting of Marlin 2.0-X bugfix / 14/04/2019 on Alfawise U20 and U30 boards. Software is running fine, and the issue we have is we need to drastically slow down the machine as head movements is really brutal compared to the stock software.
Even by doing so, we have skipped pulses on Y axis, with the mooving bed.
Is there a limitation on how Marlin is handling slow speed and soft accelerations? We have 100ohms sensor resistances on A4899 drivers. We have a stock Vref of 0.85, and we have to bump it up to 0.97v, which is increasing the intensity quite a bit.
Is this anything you already noticed on other printers?
I have read somewhere, but i do not recall where , that Marlin, to save CPU bandwidth, could send steps in "burst" . This could be a fatal issue on fast CPUs, like the ARM @72Mhz we have. Does this ring a bell to any of you?
SW: [
github.com]
It includes a direct Marlin loading capability on the SDcard, to replace genuine SW.
Edited 1 time(s). Last edit at 04/29/2019 12:16PM by Hobi.
