Instead of starting a new thread with the almost the same subject, I hope it's OK to fill in this thread!?
I'm printing this delta calibration model: http://www.thingiverse.com/thing:745523
I have adjusted the diagonal rods so that I´m getting 50.99mm in Z (It should be 60mm), but both X&Y are off about 0,2-0,5mm.
Is there any way to adjust Y & X size separately?
Update: I'm still not 100% sure what could be causing this but I turned off my RaspberryPi on the other side of my house and I havn't gotten any connection errors today… That could be the interference source even if it feels very strange..
Update: I'm still loosing connection. I had a couple of lost connections mid print today and I can't for my life figure out what it can be. I've tested turning off all sources of interference, changed network, choosing different channels and so on without any improvements…
Not perfect but waaay better than before!
I will try multiple prints and decrease flow with 5% at a time and see where I get the best result
I updated all fw yesterday and it seems stable in a way…. I lost connection in Chrome and when I tried to access the printer again the browser just sent me to Google... Very strange! When I tried with safari it worked just fine without disconnecting.
I also had a better auto tune of the heater which I had issues with before. Now I'm not getting a fault if I heat up the extruder and restart the machine.
This looks very much like an issue that I had with firmware retraction a little while back. The problem was caused by the default value for extra length on unretract being set to a non zero value. So, I was retracting 2mm but unretracting 3mm. Your comments back up this hypothesis.
So look for anything that could be causing the extruder to do extra length on unretract. I you are using firmware retraction, set the R parameter in M207 to 0 (zero). If you are using David's latest firmware, it should now default to 0 but set it anyway just to be sure. If you are using "normal" retraction, check your slicer settings for anything that does similar. e.g, in Slic3R there is a setting under "Extruder" called "Extra length on restart" Make sure this is set to 0. Also, disable any pressure advance settings, either in firmware by commenting out any M572 commands, or setting any slicer settings to 0. HTH
Ian
Thank you for your input!
I´m no experimenting with flowrate and are down to 85% and I´m not getting the blobs anymore.
I have a theory that the flow was to high and eventually it gets to high and press out all the filament at once… I´m not used to bowden setups but my feeling is that this can happen with a bowden tube. What do you think?
I have now done a bunch of new prints without any improvements.
I bumped up the amps to 1000 and then 1200a
Tried retraction between 2,5-6,5mm (mm steps each print)
Tried retraction speeds between 20-70mm/s
If you look at the print (in the link) you can see that some layers come out just fine and then suddenly it over extruders massively…
Any idea?
https://drive.google.com/file/d/0B88AB7ARXmHUbzhDcU9rbFNPb28/view?usp=drivesdk
It sounds to me that you have a weak wifi signal or interference at your Duet WiFi. This thread https://www.duet3d.com/forum/thread.php?id=861#p8499 may be relevant.
The signal is as strong as it gets. I'm using a Asus ac66 router. I've tried 5 different channels besides the automatic setting without any improvements.
Could I've missed something in the setup?
Hello,
I'm getting "communication error" and "Error" more or less all the time but I can't figure out whats wrong.
Sometimes I'm able to reconnect but usually I need to restart or sent M999 (Reboot) via panel due to be able to reconnect.
By rebooting and upload files, reboot and so on I'm able to get prints started but it usually gets disconnected in the beginning of a print.
These are the messages I'm getting
"Error": https://www.dropbox.com/s/grm3wekao07zr80/Sk%C3%A4rmavbild%202017-02-15%20kl.%2020.32.07.png?dl=0
"Communication Error": https://www.dropbox.com/s/7ocdt5968adqp69/Sk%C3%A4rmavbild%202017-02-15%20kl.%2020.39.51.png?dl=0
Any idea what can be causing this?
How long is your Bowden Tube I had this very issue when mine was long the Titan would just chew up the Filament since I went to Flying Extruder with short Tube the issue has disappeared It also sounds like you are trying to extrude to Quickly with the long Bowden I had to reduce print speed considerably to reduce the stripping issue.
Thanks for your advice! I Changed the currency to 1000mah and it works much better. No more skipping steps.
My bowden is 64cm long and I don't thin I can make it any shorter…
Although it's not skipping any steps the print quality looks terrible... Seams to be printing quite ok until it reaches some height. This print is made with 4mm retraction @40mm/s
Print speed 50mm/s
https://drive.google.com/file/d/0B88AB7ARXmHUTVBJaHM4YklNVFk/view?usp=sharing
Hello!
I´ve recently assembled my Kossel XL with robodigg corners and effector.
I´m using E3D Titan with V6 hotend and can't get my retraction setting right and I can't understand what can be wrong.
The test procedure I'm using is that I'm printing 4 retraction prints with 4 different processes at once so that I can compare the different settings after each print.
This is the particular print I'm having issues with: http://www.thingiverse.com/thing:607968
Printing stuff like benchys and such turns out fairly good but this one gets really messy
In the picture you can se 4 prints. Print 1 is by the white benchy hull and goes clockwise to print no 4.
The retraction settings are:
Print 1: 15mm/s, 2.5mm (lower right corner)
Print 2. 20mm/s 2,5mm
Print 3: 30mm/s 2,5mm
Print 4 40mm/s 2,5mm (top right corner)
The issues I'm experiencing is that the stepper motor seams to be skipping steps the faster I´m retracting. Actually It's not skipping steps when retracting, I'ts skipping steps when extruding after a retraction. I can replicate the sound of skipping steps by extruding for example 20mm @20mm/s or faster/longer. Only when I´m extruding 5mm slowly I'm not skipping any steps.
Is this a result a stepper that's not getting enough amps and if thats the case how do I change it on the DuetWifi?
The motor I'm using is a Nema17 1.8 deg 1.7
Picture of print https://www.dropbox.com/s/arqcs9vifun1p8f/16700281_10154213928640906_3915140778881855733_o.jpg?dl=0
1. No, it does not reconnect Although it always works if I heat the bed first.
2. I changed to relative extrusion and now it print. I have some calibration to do but it looks fine at this point.
Thank you al ot for your support!!
Thank you for your Answer Tony!
1. Correct, I´m disconnected from Wifi. I can still use the display to start prints ect.
2. I didn't know there was something called Absolute or relative extrusion, sounds like that can be the issue as the gcodes (provided by think3dprint3d) on the SD card also gave the same result.
What is recommended, using relative or absolute extrusion? I found that option in S3D and will try it later today.
Another question - When I heat up the hotend and restart I´m getting a fault message on the hotend and have to wait for it to cool before I can heat it again. Any Idea why that is?
(Ps. I sent you the same questions over mail, you don´t have to answer that as you are answering here)
// Lars
Hey guys/gals!
I´m at the stepp of doing my first test print on my Think3dPrint3d Kossel XL (Duet Wifi) and have run in to some issues.
1. Sometimes the board disconnects when I´m heating up both extruder and nozzle at the same time. It happens when the end temp is almost reached. The heatbed is powered from the board. Maybe someone here have a good S3D profile for a Delta with Titan and V6 hotend?
2. I have done a extruder calibration and it extrudes 100,01mm when I ask for 100mm so It´s well calibrated.
Although when I start a print it over extrudes a lot (!!) S3D Seams to be set up right (Nozzle size, extrusion multiplier ect)
There was also some pre-loaded gcodes (fromthink3dprint3d) that gives the same results.
If you have any idea of what can be causing my problems I´d be grateful for all help I can get!
// Lars