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  1. I'm using an ultimaker 2 with a stock machine profile with cura 4.4 freshly installed and freshly updated firmware on the machine. My machine is also massively under extruding. Its like that either cura or the firmware thinks that i have an ultimaker 2+ machine even though I have selected ultimaker 2 in cura as my machine. There are some other strange problems in my setup also including that it is printing every other line for the bottom.
  2. I guess I got both my ultimaker 2s before they removed the second hole from the fan plate, the aluminum block and plastic material feed through shell... It was quite a bit of work adapt the parts from the extruder upgrade kit and mix them with the original parts that were already on the machine...
  3. bastienb I believe I might have already been able to to do what you are saying with tinkerware. I was able to print something with extruder 1 by itself without using extruder 2 then was able to print with extruder 2 without using extruder 1. My issue occured when I tried using both extruders in a single print. If you only need to use one extruder at a time for a print that is achievable with tinkerware without modifying start or end code. The only adjustments that I had to make to print with extruder 1 or extruder 2 were in cura by enabling an extruder and disabling an extruder with a custom FDM printer profile with marlin G code.
  4. My print head is slamming into the front left of my machine between printing the first layer of extruder 1 and the skirt of extruder 2.
  5. If there is no retraction the material will continue to heat in the extruder and melt out. If the retraction is too short an amount of material will still heat up and drip out. It seems that reducing the temperature slightly and retracting by an exact amount is necessary to keep the material of the not in use extruder from dripping all over the place. Do you think the red line could be because the material is slowly melting out of the extruder? The strange thing is that the red material seems like a somewhat even extrusion.
  6. I'm still having issues on this subject but so far i've pieced together Extrusion upgrade kit (hardware) Tinkerware (firmware) Use Marlin GCode from Cura Make custom Start and End Code in cura Still trying to get tinkerware to work well with dual extrusion without having head travel issues. It could be start and end code that cura is inserting... Also If you upgrade your cura to 3.4.1 and delete the base printer cura thinks that it is corrupt and if you say yes to the window that pops up it will delete all your custom machine configurations that you create.
  7. There are some tests that I did initially with my UM2 to learn about several important factors of printing to learn how to get things more dimensionally correct. One was by creating a 1cmx1cmx1cm cube then placing an array of 16 or 25 equally spaced cubes in cura on the print bed. This tested several things including: 1.) With current settings how accurate are the cubes individually and how different are they across the entire printing surface. You might note that your bed is slightly un level or that fanning causing different cubes end up slightly different because of fanning near a wall or that cubes near the front cool faster on one side because they are near the front opening of the machine. You may also note that the bed temp has slight variations across the entire surface which do not necessarily cause a great deal of change to happen but they do contribute to .01mm at times. 2.) You may also note how the material is printing and how sharp edges can get with the material. Edges can get pretty sharp. The original provided material is usually best to do this with as it should be the first material that you learn about. Some things you may also see is how when the fan goes on and the layers build the shrinkage of the material may change between the build plate and the currently layer. Usually low layers are exact then depending on the material you might see the wall shrink in slightly until you get to about 3-5 mm high (if you are using full fan right from the 2nd layer). Lower initial fan usually helps this and you only need full fan when you are trying to bridge from area to area. 3.) Between cubes you will also see how effective material pulls are and how they differ between layer heights, if it is leaving a trail if there are pull differences between the cubes and if there are differences between areas on the bed. I wouldn't recommend going all the way to the edge but go kinda close to the printable edge with each cube placement. I have been able to get resolutions that fit by placing offsets in 3D files that I created by +/- 0.008. I'm not sure if your parts have that built on or if they are exact edges. Without altering the file you could note that part areas that cool fast seem to have more shrinkage then slower cooling parts areas, smaller parts seem to shrink less than large parts (add more space between in infill with larger parts) one more thing that you can try is to turn off the fan and repeat the cube array print to see what happens with your material. You'll notice difference between printing with fan and without fan. You could also speed up the print slightly or reduce the extrusion speed slightly to thin down excessively thick walls.
  8. Yes I now see M103 is not supported by marlin in the chart. Wow what a complication of GCODE!
  9. I now see that reprap is a better source for G code reference than the marlin website and yes M103 is described on reprap as turning all extruders off. Thanks! M103 also causes extruder retraction as a default? M104 T1 S0 would be to set temp of extruder 1 to 0? M104 T2 S0 would be to set temp of extruder 2 to 0?
  10. Hi tinkergnome, I am using Cura 3.4.1 with custom FDM printer with Marlin G Code (I also tried ultimaker 2 gcode with same result). I did not previously check the file but just did by find *X0*, then find *Y0* in notepad. It doesn't appear to have any. The file is also attached here (Block Alignment 4.gcode) and an image of the file. The start and end GCode that was placed in the file was default in cura 3.4.1. It wasn't something that I placed there. Block Alignment 4.gcode
  11. For the M104 S0 ;extruder heater off This turns the last used extruder heater off? Does this also turn the other extruder hotend off?
  12. Hi Nicolinux, Yes I did set GCode to Marlin but have been troubleshooting back and forth between Ultimaker 2 and Marlin. I will set to Marlin for the next test. I will give this a try for priming extruder 1 if I'd like to prime both extruders would I repeat this: G92 E0 G1 F400 E40 G92 E0 G1 F100 E10 Z7.0 F50 G92 E0 G1 X10 Y15 Z0.5 F500 G92 E0 G1 F9000 over again while replacing E0 with E1 (for extruder 2)?
  13. Hi Nicolinux I have previously read through some of the mark 2 posts and had some comments from foehnsturm because originally I thought that mark 2 was what I was looking for for firmware for adding dual extrusion to my ultimaker 2. When I found out that this is for two independent single extruders this was not really what I wanted to try first. I wanted to get two extuders in the same print head going first to see how that behaves and I also had the parts to add two extruders into one print head. This is why I kept searching and came across the Tinker firmware. It seems that all I need is a description of what to use together to get it working because it seems like there is a lot of cura management/firmware management and interchanges in between that could be creating my problem where the extruder is smashing into the front left of my machine. I catch it each time before it does with the power switch but it would be nice to get dual extruders working at some capacity before figuring out if I want to go to something else. I can see that for some reason the Ultimaker 2 board heats up the second extruder slower than the first extruder and am not sure if that is hardware or software controlling that rate. As in previous updates I have both extruders working independently and I can run prints without issues but when I create GCode that runs both extruders to try to align print headset the GCode causes the machine to have the smashing issue. After extensive testing across the latest tinkerware and cura slicer I'm not really sure if its the new cura or the tinkerware that is causing the issue. This is why i am looking for a known good combination. This is the system configuration that I am working with Ultimaker 2 Extruder upgraded inserted as Extruder 1 Original Extruder inserted as Extruder 2 Tinkerware firmware (tried 17.10.1 and 17.10 with both Dual and Plus firmwares) Cura 3.4.1 (haven't tried older cura for slicing yet) Model: So far I have only tried printing alignment models so that I can measure and update the extruder offset and I haven't been able to finish a print yet. The model that I have been trying uses Extruder 1 to create the skirt then the base of the model, after layer 1 of extruder 1 the Gcode then tells the printer to switch to extruder 2, extruder 2 then creates its own skirt on layer one then before printing anything (because there isn't anything there in the model to print it sends the print head to the front left). In the model that I am trying to print there is no actual use of extruder 2 until 6-8 layers later. This leads me all the way to thinking that something is going on with the plate adhesion being printed by both extruder 1 and extruder 2 because in cura you can only select extruder 1 or extruder 2 but not both to print built plate adhesion. here is an image of the model, the yellow is extruder 1 and the purple is extruder 2, extruder 1 prints a base and upon completion I would be able to measure the distance between the yellow wall and the purple wall to set the offset between extruder 1 and extruder 2. From there I would have a calibrated machine. If there was overhang of purple forward or backward I could also adjust that distance, but not likely because I have all Ultimaker 2 original parts in the print head. Yes I took apart the extrusion upgrade and swapped parts back and forth to get everything to work mechanically and was able to route all the extruder wires in a way where the lengths of the wires laid out neatly in the machine. It really seems to be firmware/software handover issue or cross-compatibility issue between different versions of each it could be a Ultimaker/Marlin GCode handover issue I'm really not sure at this point.
  14. The above was tested with cura 3.4.1 and Tinkerware V17.10 and V17.10.1 Marlin and Ultimaker 2 G code flavors, same resulting issue with direction of extruder head colliding with front left of machine after extruding skirt of second extruder.
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