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bman

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  1. I think I understand what you are suggesting but how will this allow me to use the PVA only for the interface layers? From what I can see this will allow me to make all of the support structure out of PVA or the main material. Is it not the slicer that determines which support layers are to be printed with which material?
  2. Doing in CAD is possible but then I can not choose a separate material for the support interface layers, i.e. PVA. I have a dual extruder system. Maybe it is something the developers could add in the future. Thank you
  3. I would like a method to provide supports for tall thin objects, like long bolts, where a support structure could be provided along side the model. The supports should be customizable in size and with branches connecting, to the model, a defined intervals. This would look similar to a support tower used on rocket launch pad to support the rocket. Thank you
  4. I have been trying to print some very tall thin models ( 10mm wide, 229mm long and 190mm tall). I have had little sucess with this. I have tried large brims, reduced speed, blue tape, glue stick etc. All f which have failed near the top of these 11+ hour prints. I am looking for away to add a custom support along the sides of the model to provide stability as the model grows taller. Maybe a removable support that angles from the bottom up to the top. I do not seen anyway to add a custom support like this to Cura. Does this feature exist in Cura 3.5 and if so how do I use it? If not, do I need to do a custom support in something like meshmixer? Thank you
  5. I have a reprap 3d printer using marlin 1.14 and a chimera hotend. I am using Cura 3.5 and having good sucess with 2 color prints. I use a prime tower and a 15 degree standby temperature on may nozzles. When the nozzles are swapping the hotend moves to the edge of the print and stays there until the temperatures reach the new values. Is the distance that Cura uses for where to move off the print related to the nozzle offsets and if so what is the relationship? I am currently having my x and y offset set to 0, leaving marlin to handle the 18.2mm offset. Thank you
  6. Yes I know I can just change filaments, but since I have two extruders and nozzles it would be better if the printer can do everyhting without me being there. An even better thought than inserting one stl into the other, since this means both nozzles are printing the interior overlapping layers, is to have a nozzle switch command at a given layer height. I have not found a way to do this in Cura without directly editing the gcode. Thank you
  7. I have been using cura 3.4.1 for my dual extruder reprap machine and have been using the change tool gcode for moving the nozzles off the print why they heat up. The print works fine, but then randomly, I will get a move that sends the print head crashing into either the X or Y or both endstops. This random crashes did not occur prior to the use of the tool change code and there are many tool changes thoughout the print. But somewhere during the print, could be hours into it, the heads will crash. Has anyone else experienced this and if so can you supply a solution? The tool change does nothing more than move the head to the X30 Y30 position, off the print, and waits until the nozzles change to the correct temperature. Thank you I am still having this problem. The attached file is a test I did today with dual extruders and support material. The second extruder is just doing the support interface layer. From what I can tell ( I am a novice) there is a random move on layer 3 that sends the head back to the X0 Y0 position. This caused a head crash. This position is far away from the print and takes place after the brim has been printed. I see no reason for this to happen. I would appreciate some feedback. PLEASE
  8. I am trying to make a 2 color nameplate with the bottom base one color and the test another color. When I bring the models into Cura they both are placed on the bed. I need the test to be just slightly inserted into the base. If the base is 2mm thck then I would like to test to be inserted into the base by 0.2mm so that the rest of the test is placed above the base ( approx 1.4 mm). This outside text would be a different color than the base. I cannot get thsi to work correctly. I am using Cura 3.41 Thank you
  9. I have recently added a chimera hotend to my reprap printer. I have been using Cure 3.41 on this printer, with a single hotend, for awhile and have been pleased with the results. I the dual nozzle configuration I get duplicate settings for both nozzles, but do not fully understand what I need to change for the second nozzle. I can understand temperature and material but do I need to set things like bed temperature in both extruders? I would be great if someone could advise what settings are shared between extruders, which extruder sets the defaults, and how to ensure that both nozzles are primed for printing. I am alos looking for some help on enabling things like the ooze shiled / prime tower etc. I appreciate any and all support. Thank you
  10. I used the exclusive setting.
  11. CTBeke Thank you very much the slicing tolerance fixed the problem.
  12. Thank you very much for the suggestions. I will try a few of them and see if that resolves my problem. Just a couple of comments. I am trying to understand why Cura does not create the same result as Slic3r and Ideamaker with regards to threads. Purchasing a M6 bolt does not help because I need an adaptor to go the a 1/4" bolt to a m6 thread. Cura has many options and I am sure that once I undersatnd what setting needs to be changed, Cura will be my favorite slicer. But todya I use all 3 three for differnet slicing needs. I will update once I make a few test runs. Thank you for the great support
  13. I have tried to print a few threads that were designed in Fusion 360. The thread size is M6 and 1/4" which is needed to mate a 3D scanner to a tripod. I have printed thread before using Ideamaker and slic3r and both give me a good fitting thread. I would like to use Cura as my regular slicer, but everytime I do threads using Cura they come out too small. Cura is a great program with many options but I am still new to 3D printing and I have not been able to find the best settings to achieve repeatable tolerance. I have printed, on Cura, calibration cubes ( no holes or threads) and they are good. Any suggestions? Thank you
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