Great! The homing of the Z axis works now as expected! With reducing the microsteps to 2x the deacceleration works, but the sound and vibrations of the CNC are very bad. A direct use of the existing speed and acceleratrion settings doesn't work. I will play the next days a little bit with the microsteps, speed, acceleration and jerk settings.von NixToDo - Repetier
OK, you are right. I will reduce the micro steps to 2x. M119 shows correct values. Low with not actuated switch and High with actuated. As you can see in the attached configuration.h above I have set up X and Y axis with MIN switches and Z with a MAX switch. There is no back move at Z axis when homing first time. The Z axis stops only. #define ENDSTOP_PULLUP_X_MIN true #define ENDSTOP_PULLUP_Y_von NixToDo - Repetier
The original manufacturer of the CNC have installed steppers with 200 steps and a TR12x3 (= 66.666 Steps/mm). I have switched to 16x micro stepping (= 1066.666 Steps/mm). All axis (XYZ) shown the same behave. The stepper drivers have DIR and STEP inputs. I have connected a selfe made Gen7 with only one Polulo for the Extruder to them. My first use case of the CNC is using it with LinuxCNC. Withvon NixToDo - Repetier
Hi, now I have compiled the firmware with #define DEBUG_QUEUE_MOVE included. See the attached log file. I have also attached my Configuration.h file. By the way: Running g code from manual panel or from a file doesn't make a difference. Do you have an idea? Dirkvon NixToDo - Repetier
Hi, thanks for your help. The jerk is default value (20). I have tested 50 and 100, resulting in lost steps from beginning moving. Also I have tested a value of 0. It has no effect. Yes, I have entered the commands at manuel control panel. Download the video then it plays, a direct view doesn't work. I don't know why. I will compile the firmware tomorrow. Dirkvon NixToDo - Repetier
Hi, I have a strange behave at my CNC style Reprap. I use Repetier Host 0.90c and Firmware 0.83 an it works well. But I have to reduce the speed limits to very low values. Because of the CNC style (mass of Y bridge) the steppers have to accelerate slowly (50mm/sec²). The speed is about 60mm/sec. I have attached a link to a video: First move (from Y 0): G1 Y200 F3600 All works fine. You can hevon NixToDo - Repetier
Was habt ihr denn gemacht? Ich vermute mal das ihr ABS druckt. Wird PTFE bei 200°C auch schon so weich das sich das Hotend da raus drückt? Vg, Dirkvon NixToDo - Extruder, Hotends & verschiedene Materialien
Hallo, hier die Fotos von meinem aktuellen Hotend und Extruder. Laut Aufheizkurve benötigt das Hotend ca. 1,5min um auf 200°C zu kommen. Später sieht man das die Heizleistung bei ca. 50% liegt. Das wäre ideal, nur zeigt das Bild den Ruhezustand und nicht den aktiven (druckenden) Zustand. Da sinkt die Temperatur etwas und die Heizleistung geht auf ca. 60-65%. Die Heizung ist also etwas schwach...von NixToDo - Extruder, Hotends & verschiedene Materialien
Hallo Willy, vielen Dank für die Richtigstellung. Das beruhigt mich doch Ich habe hier gerade leider kein Foto vom aktuellen Hotend, poste ich später. Ein Foto vom Wade Extruder auf dem 43mm Eurohals Und ein Foto von dem Vorläufer des jetzigen Hotends Das Hotend auf dem Bild ist 51mm lang und hat sich nicht bewehrt. Das Filament läst sich sehr schlecht schieben. Material Messing (Ms58) mitvon NixToDo - Extruder, Hotends & verschiedene Materialien