Hallo Gerard, danke für deine erkärung, ich dachte das er beim retract nur zurückzieht, und dannach gleich wieder drucken anfängt ohne das er das Filmament wieder quasi vorzuspulen. Aber irgendwie logisch das es wieder vorgespult werden muss. Der Drucker ist derzeit in einer nicht sonderlich gut beheizen Werkstatt, da könnte das Filmament schon Wasser angezogen haben. Kann eventuell auch meinby steven85 - Elektrik & Elektronik
Hallo Traumflug, danke für dein Antwort. Ich denke da hab ich mich wohl zu kompliziert ausgedrückt oder ich verstehe was falsch: Retract ist doch quasi das "Rückwärtslaufen des Extruders" nachdem er an einer Stelle mit dem Drucken fertig ist oder? Das macht er ja soweit korrekt. Dann kommt er aber zu stelle wo er weiterdrucken will und dort läuft der Extruder erstmal ein ganz schönes STück wiby steven85 - Elektrik & Elektronik
Hallo Leute, nach ca einem Jahr habe ich meinen Prusa Mendel nun endlich soweit das er mal zumindest irgendetwas ausdruckt Elemente mit Größeren zusammehängenden Flächen funktionieren schon so einigermaßen. Wenn es aber kleine nicht zusammehängende Flächens sind wird es problematischer. Wenn der Extruder aufhört zu Drucken zieht er ja als erstes etwas vom Filmament wieder zurück. Wenn er dannby steven85 - Elektrik & Elektronik
Hello, i know that thers no real point in removing atmega but I'm expirementing to maybe stumble across a solution. do you really think the "noise" could turn on the Transistor? If i meassure pin 40 to ground i see 2 nano farrad. And if i remove the ATmega -> heatbed is on -> i meassuere pin 40 to ground the heater turns off and stays off ! Can this 2nf cause the trouble? regarding the blby steven85 - Next Wave Electronics Working Group
ok ... If i connect heatbed to heater 2 -> heater 2 on -> remove at mega -> heater 2 led dims down a little AND Heater 3 led turns on. Now i connect heatbed to heater 3 -> heatbed gets warm -> heater 3 stays on -> even atmega is removed. I cann turn the power suply off and on again (+5V led turns off) -> heater 3 still heating. alltought atmega is still removed. If i Mby steven85 - Next Wave Electronics Working Group
Intressting fact: If i connect heatbed -> heater turns on (led goes on, heatbed gets warm) if i now REMOVE the hole ATMEGA -> heatbed still on ... NOW i totaly confused. regardsby steven85 - Next Wave Electronics Working Group
Hello Traumflug, i tried to use external 5V Voltage, suplied by batteries and a Voltage regulator. That does not solve the problem. Its very strange. If i connect the heatbed the board isnt controllable with the host software. But if i leave the heatbed connected it the heater led turns on and the heatbed starts warming up. an after alle the heater 1 led starts blinking ... But i cant turnby steven85 - Next Wave Electronics Working Group
Hello Traumflug, i just tried to to connect the heatbed directly to the psu -> that is working. I now change the Setup a littel -> now i'm only using the 4 Pin Molex connector. -> thte Power Supply is always on. I now also locked the "application part of the ATMEGA Rom" with the Lockbit. -> now i do not lose the hole software after connecting the heatbed. But i still doesnt work aby steven85 - Next Wave Electronics Working Group
Hello Traumflug, that was a comment. Looking at this, the board should basicly work. and the PSU is maybe be the problem. I will try to connect the heatbed directly to the PSU, simple but clever idea (hätt ich selbst dauf kommen können Thanks for your reply. regards Stefanby steven85 - Next Wave Electronics Working Group
HI just tried to put a 12v lamp on the 5v+ rail. blub lights a little, but power suplly still turns off. I've i use a 6ohm power restistor instead of the heatbed psu does not turn off? any idea? regards Stefanby steven85 - Next Wave Electronics Working Group
Hello I just checked Fuses and everything is ok. Now i tried a different PSU. Yesterday i was using a "always on" PSU (with the ATX power on cabel shorted). Now i'M using a normal PSU. And everytime i connect the heatbed eo either heater 1 or heater two the psu turns off. Even if the heater is disabled. Any ideas? regards Stefanby steven85 - Next Wave Electronics Working Group
HI, i just checked with a fuse calculator: i programmed L-Fuse with 0xF7 as the wiki said. But for brown i out i seems like a i would need a l-fuse 0xB7 ? ?by steven85 - Next Wave Electronics Working Group
Hello Traumflug, HI I've set the H-L and E fuse acording to the bootloader upload Secion in the wiki. But i was using avr-studio since I'M on windows and i use the avr dragon. is this ok? could the voltage drop be the problem? Should i try a different (more powerfull) psu? thanks for your reply regards Stefanby steven85 - Next Wave Electronics Working Group
Hello Guy's, i trying to builde my prusa mendel for 6 months now ... and is still not not finished ... and now next big Problem and i don't have a clue ... maybe somebody can help me: I have a Gen7 1.2 Board (ATMEGA644) with Teacup Fimware (i couldn't get the Repetier firmware running, and im still testing) I'M Using the Serial Port of an older Notebook and a RS232 - TTL Converter from Pollinby steven85 - Next Wave Electronics Working Group
Hello Traumflug, as i'm on windows i cant run the .sh i guess? or cann i run it within the ide? but anyway i saw you did an update on Bootloader section on the wiki and now i'M abled to find zip files with precompiled bootloaders in it thxby steven85 - Next Wave Electronics Working Group
Hello Guy's, i don't know if this is the correct Forum, but i hope so? I'M building a prusa mendel with Gen7 1.2 Electronics and i'm totaly new to flashing bootloaders and that stuff. I bought a AVR Dragon for flashing the bootloader, but as far as it seems to me the dragon isnt comptible with the adruino IDE. So i cant burn the bootloader from there. But in the repository for the gen7 Electroby steven85 - Next Wave Electronics Working Group
Halllo Leute, Stefan hier aus Graz, ich und ein Freund Plane gerade eine Huxley zu bauen. Da ich irgendwie noch keinen Vernünftigen Shop für die Plastik teile gefunden habe wollte ich mal fragen ob die vielleicht jemand von euch Drucken könnten (natürlich gegen Kostenentschädigung)? Oder kennt jemand einen Guten Shop möglichst in der EU (Zwecks Zoll) danke und lgby steven85 - Austria RUG