Howdy, all. The Prusa's new RAMBo board is installed and functional. The todo list:
* Wiring could use a bit of cleanup with longer lengths and better cable management * Board needs a proper case to look shiny * Still need to attach another 12v power rail for the bed heater, though I tested it and it heats properly. I think Craig offered to find us a nice 40A 12V PSU. * The PS_ON pin needs wired up to the socket on the RAMBo * I kinda broke the Z endstop mount and rigged a temporary fix with duct tape. * The EE lab is a bit(!) of a mess since I finished late, got tired, and went home. * Craig had some really neat improvements in progress that look really awesome As a bonus, I added a little feature to the firmware that automatically turns on and off the LED ring based on if the stepper motors are enabled or not. When I'm here on Saturday I plan on: * Printing a fixed Z endstop mount * Cleaning up the disaster I left in the EE lab * Pushing the firmware modificatoins to the github repo * Determining the maximum extrusion rate and adjusting the firmware accordingly to hopefully eliminate all kinds of extruder failures * Determining the maximum supported acceleration of the stepper motors to eliminate the issue of layers getting shifted around and failing the print * Poking through the pile of motherboards and seeing if I can't build a new host PC out of one * Determining the characteristics of the two new fillament spools I bought so that others can use them in slic3r I don't plan on messing with the wiring, PS_ON pin, or heated bed rail, since I'd rather work towards further eliminating the numerous variables that can cause a print to fail or be of poor quality. If others wish to do that, that'd be most excellent :) _______________________________________________ Discuss mailing list [email protected] https://synhak.org/mailman/listinfo/discuss
