December 27, 2018 at 12:00 pm #80975
On this coupler should the T8 lead screw go all the way down until it bottoms out and then the rest is for the stepper motor? If I put my fingers on the T8 lead screws while moving it up or down it gets quiet.December 27, 2018 at 12:33 pm #80978
There is a lot of play in my T8 Lead Screw Nut on the right. 🙁December 27, 2018 at 12:58 pm #80984
Just get it together, level the XZ axis, then bed and try it out.January 7, 2019 at 9:45 pm #82618January 7, 2019 at 10:02 pm #82620
While you have it out have a look at my new extruder setup pics, there is a better way.January 7, 2019 at 11:07 pm #82625
Looks like I have a lot of room for improvement. Quick question though. Does the nut go inside with the gears or outside by the heater?January 7, 2019 at 11:16 pm #82631January 8, 2019 at 9:20 pm #82790
I seem to have trouble extruding. Temp 210January 9, 2019 at 7:06 am #82819
It sounds like your gear might be hitting the throat?January 9, 2019 at 9:26 am #82853January 9, 2019 at 9:29 am #82856
Loose wire? That clicking is not normal. You can turn up the current a little bit to the extruder. Make sure the temp is good, does it feed good with your fingers?January 9, 2019 at 9:30 am #82859
It actually looks like the step rate is wrong. Mine never shoots out like that it comes out pretty slow.January 9, 2019 at 9:30 am #82860
You’ve got a rambo with the setting at 900mA, though, right? That should be plenty. It’s also possible something else is wrong. Can you push the filament through easily enough when you hold down the lever?January 9, 2019 at 9:30 am #82861
errr…mini rambo.January 9, 2019 at 9:32 am #82863
Another place that could be making that sound is if there isn’t enough tension on it.
But if there’s something causing a clog, like the wrong steps or temperature table, then the skipping is the symptom, not the cause.January 9, 2019 at 9:33 am #82864
I have trouble pushing the filament through by hand. I managed to touch the hotend and it’s definitely hot!January 9, 2019 at 9:37 am #82866
#define TEMP_SENSOR_0 11 // 11-MK8 5-Aero
From Ryan’s firmware. If you have 5 for some reason, the temp is wrong. Anything over boiling would probably feel hot to a finger.January 9, 2019 at 9:38 am #82867
For some reason people think CNC is more difficult that 3D printers….no way.January 9, 2019 at 9:40 am #82868
The CNC machines are easier, but the slicer is easier than CAM. Sure would be nice if it wasn’t but…January 9, 2019 at 9:55 am #82875
Would it matter who’s filiment is being used? I am printing Maker Geeks at 235 and might go to 240January 9, 2019 at 10:12 am #82880
#define TEMP_SENSOR_0 11 // 11-MK8 5-Aero
From Ryan’s firmware. If you have 5 for some reason, the temp is wrong. Anything over boiling would probably feel hot to a finger.
Looks like it is set to 5:
#define TEMP_SENSOR_0 5 // 11-MK8 5-Aero
What is the best way to change it?January 9, 2019 at 10:16 am #82881
3d Printers are a pain in the…. That is why I need 3 different ones… and want more. 🙂January 9, 2019 at 10:22 am #82884
What is the best way to change it?
Did you flash it yourself? You need to change it and reflash.
AFAIK, there isn’t a way to change that in EEPROM, it includes a different temp table when you change that.
Run M503 first and save the output. I try to make sure any EEPROM settings I change in the firmware when I make them so the next flash is right.January 9, 2019 at 11:29 am #82909
I flashed it myself. I made the change to 11 but still have the same issue. Filament does seem to go through but takes some pressure to get it through.
I’m not sure if this is helpful:
11:26:27.067 : echo:Hardcoded Default Settings Loaded
11:26:27.067 : echo: G21 ; Units in mm (mm)
11:26:27.067 : echo: M149 C ; Units in Celsius
11:26:27.067 : echo:Filament settings: Disabled
11:26:27.072 : echo: M200 D1.75
11:26:27.072 : echo: M200 D0
11:26:27.072 : echo:Steps per unit:
11:26:27.076 : echo: M92 X100.00 Y100.00 Z400.00 E837.00
11:26:27.076 : echo:Maximum feedrates (units/s):
11:26:27.076 : echo: M203 X150.00 Y150.00 Z15.00 E24.00
11:26:27.080 : echo:Maximum Acceleration (units/s2):
11:26:27.080 : echo: M201 X2000.00 Y2000.00 Z100.00 E3000.00
11:26:27.084 : echo:Acceleration (units/s2): P<print_accel> R<retract_accel> T<travel_accel>
11:26:27.084 : echo: M204 P2000.00 R3000.00 T2000.00
11:26:27.088 : echo:Advanced: B<min_segment_time_us> S<min_feedrate> T<min_travel_feedrate> J<junc_dev>
11:26:27.092 : echo: M205 B20000.00 S0.00 T0.00 J0.02
11:26:27.092 : echo:Home offset:
11:26:27.092 : echo: M206 X0.00 Y0.00 Z0.00
11:26:27.096 : echo:Material heatup parameters:
11:26:27.096 : echo: M145 S0 H196 B62 F0
11:26:27.096 : echo: M145 S1 H240 B110 F0
11:26:27.096 : echo:PID settings:
11:26:27.100 : echo: M301 P17.98 I0.98 D83.62
11:26:27.100 : echo:Stepper motor currents:
11:26:27.100 : echo: M907 X750 Z750 E950January 9, 2019 at 12:12 pm #82947
You need to change the Z steps as well. the thermistor and Z steps go together,January 9, 2019 at 2:23 pm #82978
Alright. Now we are getting somewhere.
Is there a PID tutorial for the MP3DP?
I see a calibration cube printing now… 🙂January 9, 2019 at 2:43 pm #82984January 9, 2019 at 2:54 pm #82991
IIRC there an auto PID tune gcode command…January 9, 2019 at 2:56 pm #82992
It’s pretty simple, actually. Don’t be intimidated. There is a Tom video on it somewhere though.
Should be something like:
M303 S210 U1
<wait>…put these numbers in your firmware Configuration.h…
M500January 9, 2019 at 3:10 pm #82995
echo: M301 P17.98 I0.98 D83.62
PID Autotune finished! Put the last Kp, Ki and Kd constants from below into Configuration.h
#define DEFAULT_Kp 15.64
#define DEFAULT_Ki 1.01
#define DEFAULT_Kd 60.56
So I need to add these to the Configuration.h file and flash the firmware to the RamBo now I guess.
My first print off the MP3dP:
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