Suddenly Started printing higher than usual
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So I didnt change anything. Printed a vase the night before everything printed great. Today went to print a new duct for 5015 fan and when I send the file over from cura the printer starts but .45mm above the 0 point on the Z axis.
The probe trigger point is still correct it triggers at .73mm. I literally have not changed anything. What I had to do to get it to print properly is a G92 command after manually moving the nozzle to the proper height and then send my file over.
Is this something I have overlooked? Did something happen that i dont know about?
; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool on Thu Sep 06 2018 21:21:12 GMT-0700 (Pacific Daylight Time) ; General preferences G90 ; Send absolute coordinates... M83 ; ...but relative extruder moves ; Network M550 Pe3 ; Set machine name M552 S1 ; Enable network ;*** Access point is configured manually via M587 M586 P0 S1 ; Enable HTTP M586 P1 S0 ; Disable FTP M586 P2 S0 ; Disable Telnet ; Drives M569 P0 S0 ; Drive 0 goes backwards M569 P1 S0 ; Drive 1 goes backwards M569 P2 S1 ; Drive 2 goes forwards M569 P3 S0 ; Drive 3 goes backwards M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation M92 X80 Y80 Z400 E106.29 ; Set steps per mm M566 X600 Y600 Z24 E300 ; Set maximum instantaneous speed changes (mm/min) was 1200 you changed it to 600 M203 X30000 Y30000 Z300 E1500 ; Set maximum speeds (mm/min) M201 X500 Y500 Z100 E5000 ; Set accelerations (mm/s^2) M906 X500 Y500 Z500 E500 I30 ; Set motor currents (mA) and motor idle factor in per cent M84 S300 ; Set idle timeout ; Axis Limits M208 X-5.5 Y-10 Z0 S1 ; Set axis minima M208 X258.5 Y246 Z260 S0 ; Set axis maxima ; Endstops M574 X1 Y1 S1 ; Set active high endstops ; Z-Probe M574 Z1 S2 ; Set endstops controlled by probe M307 H3 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch M307 H4 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch M558 P9 H4.0 F120 T6000 ; Set Z probe type to bltouch and the dive height + speeds G31 P25 X-31 Y0 Z0.73 ; Set Z probe trigger value, offset and trigger height M557 X50:185 Y50:185 S65 ; Define mesh grid M557 X20:215 Y20:215 S65 ; Heaters M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0 M143 H0 S120 ; Set temperature limit for heater 0 to 120C M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1 M143 H1 S280 ; Set temperature limit for heater 1 to 280C ; Fans ;M106 P0 S1 H1 T45 C"Part Cooling" ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on M106 P1 S1 H1 T45 C"Hotend Fan" ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on ; Tools M563 P0 D0 H1 ; Define tool 0 G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C ; Automatic power saving M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; Set voltage thresholds and actions to run on power loss ; Custom settings ;M591 D0 P5 C3 R10:300 E3.0 S1 ; Duet3D laser sensor for extruder drive 0 is connected to endstop input 3 (E0), tolerance 10 to ;120%, 3mm comparison length ``` -
Is it consistent every time you home now?
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Yes it is. If I start a new print I have to pause the print and zero the Z at the correct height then resume printing.
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What do you get when you measure the trigger height with this?
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So I get .73 reported in the head position. The very first time I did it it reported back to me in the actual G-Code console. It doesnt do that this go round.
The first time I did this I followed that exact same procedure and that is where the .73 came from. But that exact value gets reported in the head position box for Z if I do it now. Just wanted to reiterate that.
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So the Z position box will show whatever the G31 z offset is set to when you do a G30 because that's the height you've told it is is when the probe triggers.
And if G30 S-1 still gives you the same value it should be correct.
Can you post your homing file?
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I dont get why all of the sudden it started doing this if nothing got changed.
And today my bed is showing 84°c when its cool to the touch....
; called to home all axes ; ; generated by RepRapFirmware Configuration Tool on Sat Sep 29 2018 12:21:44 GMT-0700 (Pacific Daylight Time) G91 ; relative positioning G1 Z2.5 F6000 S2 ; lift Z relative to current position M98 Pdeployprobe.g ; deploy mechanical Z probe G1 S1 X-269 Y-261 F1800 ; move quickly to X and Y axis endstops and stop there (first pass) G1 X5 Y5 F6000 ; go back a few mm G1 S1 X-269 Y-261 F360 ; move slowly to X and Y axis endstops once more (second pass) G90 ; absolute positioning G1 X51 Y20 F6000 ; go to first bed probe point and home Z G30 ; home Z by probing the bed ; Uncomment the following lines to lift Z after probing ;G91 ; relative positioning ;G1 S2 Z2.5 F100 ; lift Z relative to current position ;G90 ; absolute positioning M98 Pretractprobe.g ; retract mechanical Z probe; homez.g ; called to home the Z axis ; ; generated by RepRapFirmware Configuration Tool on Sat Sep 29 2018 12:21:44 GMT-0700 (Pacific Daylight Time) G91 ; relative positioning G1 Z2.5 F6000 S2 ; lift Z relative to current position G90 ; absolute positioning G1 X51 Y20 F6000 ; go to first probe point G30 ; home Z by probing the bed ; Uncomment the following lines to lift Z after probing ;G91 ; relative positioning ;G1 S2 Z2.5 F100 ; lift Z relative to current position ;G90 ; absolute positioning -
@jtroutt19 said in Suddenly Started printing higher than usual:
And today my bed is showing 84°c when its cool to the touch....
That's concerning. Is the wiring and thermistor intact?
M98 Pdeployprobe.g ; deploy mechanical Z probe
M98 Pretractprobe.g ; retract mechanical Z probeYou should probably remove this from homeall.
I can't see anything else in your homing files that's amiss.
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@phaedrux
I reloaded the firmware and the temp is showing correct again.I dont understand how anything has changed. But I added .4 to my trigger height and it now is at the correct height.
Hey while I am here let me ask you. Dual 5015 blowers or just one?
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Was there possibly a head collision at some point? All it takes is a small shift. Since nothing software wise had changed, some mechanical explanation would seem likely. Wear, damage, binding, loosening parts, etc. Give everything a really good inspection.
@jtroutt19 said in Suddenly Started printing higher than usual:
Dual 5015 blowers or just one?
That depends how much cooling you need and what shroud you're using. I use a single 5015 with a Dii cooler shroud. Depends on the 5015 as well. How powerful are they?
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Ahead of ya there. After getting home today I double checked everything. Made sure everything was still tight and square. I couldn't find any issues. But oh well its fixed now.
I am using the Petsfang 5015 mount for the hot end cooling with a noctua fan. The blowers other than being brushless and 24v I have not clue about. I ordered them off amazon and they sent me two. I am currently printing the duct to accommodate one of them. I just didnt know of 2 were ever going to be needed.
I dont know how much cooling I am going to need. Not sure how to even start answering that question.
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@jtroutt19 said in Suddenly Started printing higher than usual:
Not sure how to even start answering that question.
Start printing. You'll know. One will likely be enough. I'm going to guess that the blowers from amazon are probably a little loud and pretty powerful. And they probably sent two because there's a good chance one will be DOA. So at least you have a spare.
