I suspect the crimped PT100 connections may cause an intermittently poor electrical connection which results in Heater Faults.
I was wondering if anyone has soldered the PT100 sensor wires to the smart effector.
If so, how did you get to the pins underneath the molex style connector on the effector?
Hello,
I am aware that this topic is a little old, however I am attempting to get a Y-Splitter to work on my Delta printer and I'm having some problems. I was hoping that someone that has successfully accomplished this task could offer some advice.
So far I have I printed and installed the Y-Splitter from the Prometheus website and installed the special longer heatbreak. I've also wrote the TFree, TPre & TPost files (initially using the recommended values then using slower values for retraction). I'm experiencing problems when changing filaments. I'm not sure if it's due to:
Does anyone have suggestions or experience resolving s simliar issue?
Can this type of setup be made to work consistently?
I initially used the filament chaning speeds recommended on the prometheus website
I think you are correct.
After watching the printer closely during a print, I can see that the 'stutters" coincide with a change in direction in the X-Y plane. This motion is obviously intentional and probably due to pressure advance as you suggested. I guess I never watched the extruder gears closely enough to have noticed that motion before. Thanks for the advise.
What would you suggest an acceptable Pressure Advance setting is for a bowden tube approximately 500mm long?
On the reprap G-code wiki M574 is the command used to set endstop configuration?
Thanks again for your reply.
I purchased stepper Part # 17HM19-2004S.
2.80 VOC
2.00A
0.90 Step Angle
Do I have an incorrect setting in my config.g's M906?
I purchased both of the motors (old and new) from "StepperOnline".
Both are wired (pined) the same.
Thanks for your reply.
The extruder was working ok before and it is still working ok. It just appears to be stuttering for no reason.
I am attempting to determine if this is caused by incorrect settings or hardware issues.
I'm concerned that the motor may be skipping steps which may lead to under extrusion.
I was hoping the video link I posted would help somebodu isolate the problem.
I changed the extruder motor.
The old motor had a 1.8° step angle and the new motor has a 0.9° step angle.
The old motor was also smaller.
Due to this I also changed the amps in my M906 command fro E800 to E1000 (sorry, I just noticed I entered the old amps in my original post).
Thanks for your reply.
I don't think that the temperature is an issue, as It's set at 220°C for PLA.
I don't think the hotend is jammed because if I extrude 100mm @ 5mm/sec (220°C) in DWC the extruder seems to work smoothly without stuttering.
It actually prints ok.
I have printed several test cubes and retraction tests since I changed the extruder motor.
I noticed the stuttering during a test print and am worried the motor may be skipping steps (but I really don't know).
I am having an issue with my extruder motor.
It appears to be rapidly moving back and forth (or stuttering) for no reason.
Below is a video link showing the stuttering.
https://www.dropbox.com/s/stlf1lglxtwdj8e/Extruder1.mp4?dl=0
The extruder is an e3D Titan.
The motor has a 0.90 step angle.
I believe it may be due to my settings.
Below are the relevant settings.
M906 X1000 Y1000 Z1000 E800 (set motor amps (mA))
M201 X3000 Y3000 Z3000 E1000 (Accelerations (mm/s 2))
M92 E837 (steps/mm)
Any advise would be greatly appreciated.
I was hoping someone could offer suggestions on implementing and selecting an effective dual extrusion solution for a Delta printer. My primary goal is to be able to print with (2) materials (one of the materials being for support, possibly pva).
From my limited research it seems that something similar to the prometheus system would be good for a delta printer. This type of system would eliminate the need to switch tools, level multiple nozzles and would weigh less than a multi-nozzle system. I'm also not interested in a mixing hot-end as I'm not concerned with multi-color prints.
I know that some of the physical challenges will be how to support the system above the smart effector, how to create a prime tower using slicers, and how to switch filaments in the slicer.
I'm sure there are many other considerations as well.
Any advise would be appreciated.
Is there a way to get the temperature values that appear in the "Extra" tab in DWC to appear along with the Heaters on the "Tool" tab?
Thanks,
It's working perfectly.
I also tried using the "B" & "R" values that are used for my Heated Bed thermistor and they appeared to work as well.
M305 S"Chamber Temp" P103 T100000 B3950 C0 R4700 X1
@bearer
Thanks for the help.
I purchased a generic 100k 3950 Thermistor and installed it.
It works just as you described, however the temperature reading appears to be off by about 20°C.
I used the code "M305 S"Chamber temp" P103 T100000 B3988 C0 R2200 X1".
Is there a section of the code that I need to change based on my specific thermistor, or do I need to somehow tune the thermistor in order to produce an accurate reading?
Also,
I am having a difficult time finding (4) conductor twisted pairs that are not shielded. Would it cause any problems to use shielded cables without grounding them?
Thank You,
I tried using the B1 parameter and it didn't have any effect.
I plan on rewiring my PT100/Z-Probe and Heater/Fan cables using (4) 4 conductor twisted pairs to see if this helps.
But I don't know if any of the cables should be shielded and grounded. And if they should be grounded I don't know how.
Can anyone advise on the grounding issue?
Thanks to everyone for all the advice. I greatly appreciate it!
I have tried to recreate the heat spike by wiggling the 8-pin PT100/Z-probe cable and connection, the PT100 sensor and the heater cartridge/fan cable with no luck.
I also made a new heater cartridge/fan cable as well as double checked the PT-100 daughterboard connections.
I have noticed that the heat spikes occur when running a bed calibration (Oddly enough I cannot recreate these spikes by moving the X, Y, or Z axes through Duet Web Control). I have also noticed that I sometimes have an issue when running bed calibrations in which the Z Probe is triggered before it probes the bed. I thought that slowing down the calibration procedure might help, however this made the false triggering much worse.
Since the Z-Probe wires and the PT-100 sensor wires are all connected to the same 8-pin connector and run in the same cable wrap do you think there signals are interfering with each other?
Would simply rewiring this connection with twisted pairs solve the problem or is it possibly something else?
I am experiencing occasional heater faults while printing with my Delta printer.
The other day (4) hours into a print, my print failed due to a heater fault. I looked at the temperature graph and it appeared to be a spike in temperature.
I'm assuming that this spike was due to interference in the PT100 cable (however I am just guessing).
I'm hoping to resolve the problem by re-wiring the PT100/Z-probe connection to the Smart Effector using a shielded cable. However I don't know how to properly ground the cable?
Question #1:
Will replacing the PT100/Z-Probe cable with a shielded cable help resolve the issues with temp. spikes?
Question 2:
How do you ground the cable to the PT-100 sensor? Does anyone have a picture of how they did this?
Question 3:
Can someone recommend a 4-conductor cable to use? Most of the shielded cables I've seen have a solid copper wire for grounding, that would be to inflexible to use on a 3D printer.
Thanks for the reply.
Your heated chamber looks amazing.
How well does it work?
Would you be willing to share your heater and fan spec's?
I assume that the walls are Polycarbonate or Acrylic. Is this correct?
Does the heater block get hot enough to warp or melt the plastic walls?
I would like to enclose my printer and monitor the chamber temperature. Does anyone have experience with this?
I have a delta printer with a Duet wifi Board and a PT100 sensor controlling the hot-end, so I have should have the (2) hot-end thermistor ports available. Would it be possible to use these ports? Can anyone suggest a thermistor that I could attached to the vertical printer posts that would be adequate for measuring the ambient temp.?
Also, Can anyone tell me how to modify the Duet Web Control interface to display this new thermistor along with the hot-end and bed temperatures?
