SOLVED Sorry, I figured out the solution rather quickly with folks in the Marlin Discord server. Seems that RepetierHost waits for the micro to reset when connecting. Only 8 Bit boards seem to do this so that's why it waits indefinitely when connecting to a 32 Bit board. Solution was to just use Pronterface instead for example. I'm leaving this here for anyone else having a similar issue in theby printer_dave - Firmware - Marlin
I have recently switched from RAMPS to an SKR 1.4 Turbo and my serial connection is not working. I tried macOS 10.14 and macOS 10.15 for the host OS. The same configuration worked without issues on the RAMPS so it shouldn't be misconfigured. Serial port settings I tried: #define SERIAL_PORT 0 //#define SERIAL_PORT_2 -1 #define SERIAL_PORT -1 //#define SERIAL_PORT_2 -1 #define SERIAL_PORT 0by printer_dave - Firmware - Marlin
QuoteAndY_1981 @printer_dave I try to use 2.0.5.2 ... maybe your Firmware version is to old ... at 2.0.5.2 you can find it in configuration_adv.h at line 2253 For your Steppers it should look like this in the "tmc_util.h" (if you use 16MHz CPU): #define CHOPPER_xxx_12V { 5, -3, 1} Hi Andy, thanks for your reply! I downloaded the latest version from the main 2.0 branch and started porting overby printer_dave - Firmware - Marlin
Quotedc42 It would be helpful to know what motors were used by @abuharsky and @kolin. They may have been low current high inductance motors, which are not suitable for operation with a 12V supply anyway. Hint: if a bipolar motor has "Rated voltage: 12V" in the specification, then it is NOT suitable for use in a 3D printer with 12V power, because much more than 12V will be needed to reach sensibleby printer_dave - Stepper Motors, Servo Motors, DC Motors
QuoteAndY_1981 Did you tried to calculate the right values for the spreadCycle chopper parameters in Configuration_adv.h? Maybe chopper freq. is to low. { off_time[1..15], hysteresis_end[-3..12], hysteresis_start[1..8] } Where can I find that line? Don't have it in my Configuration_adv.h... I also have no tmc_util.h file. These are my stepper motors:by printer_dave - Firmware - Marlin
Hi, just wanted to chime in and say I have the exact same problem with my printer! Sounds exactly the same like in the video (not only loud but also kind of "rattly" though nothing is loose). My printer is a Prusa i3 MKIII built by me (not from Prusa) running from a RAMPS board (12V). I have rather cheap steppers so maybe I need to change the settings that @AndY_1981 mentioned. WIll try it asap!by printer_dave - Firmware - Marlin
Hello, I'm building a Prusa i3 MK3 out of parts at the moment and currently waiting for the electronic components to be shipped. So I'm already reading posts regarding the combination of RAMPS and TMC2130.... Is there any new info yet? Keep us updated! ;-) Daveby printer_dave - RAMPS Electronics
Quoteobewan The main culprit for this is that the nozzle is not screwed in enough to create a seal between the nozzle and the heatbreak tube When you re-assemble the hotend, screw the nozzle all the way in and then unscrew about 1/2 a turn, now crew the heatbreak in until it touches the nozzle. Now heat the hotend up and re-tighten the nozzle so that it is completely sealed. Hello! I disassemblby printer_dave - Printing
Okay! I actually did that but either the whole procedure with temp. on (or everything with temperature off, I don't remember). So should I disassemble it while cold and tighten the nozzle (last step) when hot? Also, do any cleaning or not? I'd also have the option to take a new nozzle (and / or heater block, but no heatbrake) as I have those parts on hand. Thanks already!by printer_dave - Printing
Hello, Today I noticed that my (bowden) extruder was skipping on the filament sometimes. Then I had a look at the nozzle and noticed black, melted plastic coming out from the side (or better, the gap) where the nozzle is screwed into the heater block. First I thought it might have been there for a longer time and cleaned it off, but then half an hour later I checked again, and again a little blby printer_dave - Printing
Hello everybody. I think I fixed the issue! After a lot of trial and error, I was pretty sure something about the MOSFET board was wrong. So I took it out of my electronics assembly and there was the issues: The PSU cables must have pulled too much on it, resulting in one of the legs that connect the screw-in connector to the board to be very loose / the solder joint was poorly made and got worseby printer_dave - Reprappers
Hello Guys. I have a problem with my printer again... The heatbed works just fine (65° C) and holds the temperature, whereas the hotend after some time (like 10 minutes) at 225° C just drops the temperature like crazy. Sometimes it remains at 180, and the last print even dropped to 35°C (I was away for a few minutes and came back, with a clicking extruder and the display saying 35°). I power myby printer_dave - Reprappers
Quotewaitaki I would disconnect the heatbed thermistor connector that plugs into the mainboard then plug another thermistor into the mainboard (just hanging in the "breeze" above the motherboard) and see what you get - a 100k resistor would probably do if you are short of a thermo. If the power supply stays on, you will know what to do next! Thank you very much! I do have a few 100k hotend therby printer_dave - Reprappers
Hello everybody. As described in the title, my PSU shuts down immediately after turning it on. Before, it had worked for months in this configuration. I bought it new around half a year ago so didn't expect a failure. Turning it on without the motherboard attached works fine: the fan runs, the mosfets show their power led and I can measure the 12V with my multimeter. But as soon as I turn theby printer_dave - Reprappers
Awesome, thank you very much guys! I'm pretty near to Frankfurt so I might even pick them up there :-)by printer_dave - Reprappers
Hello Forum! I'm entering this forum already with a very specific question: I am 3d printing on my Anet A8 for quite a long time now, I've modified and improved it a lot with E3D V6, modified PC PSU and much more. Now today I came across this very interesting project on thingiverse: Which is a frame for the A8 built from Aluminium Profiles. As I tried to find them in german onlineshops, I couldby printer_dave - Reprappers