I had the same problem on my reprap.cn printer. Make sure that the way through the hot end has the same diameter. I had a cavity at the inlet . The PFTE hose for the filament feed was not all the way in. So when the hot end got hot, the heat traveled upward and the filament got compressed into this cavity.by Terje - General Mendel Topics
Great BRNRD !! This will solve my issue. Will add the command at the start up part of the G-Code in sli3er. Thank youby Terje - General Mendel Topics
Okay. I need a firmware upgrade.. Because i guess the configuration.h is compiled together with the firmware. And i believe reprap.cnn has added all necessary info for this printer. Or not . The strange thing is that everything worked well in the beginning. The problems started after a upgrade to Repiter V0.95. And i upgraded to new version because the old software provided with the printer,by Terje - General Mendel Topics
Hi again. Just want you to know that I finally figured it out. The firmware is OK. It must be a bug in the Sli3er software. (Repetier V0.95F). If I send G-Command G1 Z10 F60 , the stepper runs smooth. If I load a STL file and run the sli3er, and then inspect the generated G-Code,, I see :: G1 Zposition F6000.00 .. G1 Znext_position F6000.00 .. F6000.00 ? If I edit all to F60, then all works fby Terje - General Mendel Topics
My controller board is a Melzi V2.0. I have looked around for the firmware and found a lot of it on the github repostery. I do have the larger Atmel chip on the board. I also have programming tools for Atmel (AVRISP, AVRJTAG, AVRONE), but probably not necessary. But when I get to the github I get a bit confused, because everything is new for me. Should I download both or only marlin or sanguineby Terje - General Mendel Topics
Maybe the problem is the wiring ? There are two Z-Step motors. The wires is parallel coupled to the board. That's what reprap.cnn's wiring diagram said. I have seen another solution somewhere. And we have the adjustable resistor near the stepper chip. what's the point with this pot? Calibration or Current limiter? /Terje.by Terje - General Mendel Topics
I have finally found the problem. But not able to solve it . The problem is the Z-Motors. They are not turning when running the G-Code script. But the Z-Motors works perfect when using the arrows/buttons in manual mode. The speed in printer setting is set to 100mm/s and all is running smooth and fine. So the question is.. Why does the printer ignore the Z-moves? I can feel a quick small atteby Terje - General Mendel Topics
Hi. I bought a kit from hong kong, Reprap model 230, at reprap.cn . Anyway I have a question. I'm using the latest sli3er software for windows. When printing, the first layer gets perfect. But the second layer not so good. It looks like I get too much plastic extruded on the second layer. On the third layer the nozzle starts to tear apart everything . I have been looking at all the settings iby Terje - General Mendel Topics