Jump to content
Ultimaker Community of 3D Printing Experts


  • Content Count

  • Joined

  • Last visited

Community Reputation

2 Neutral

Recent Profile Visitors

788 profile views
  1. Hi, everyone, congratulation for the great work yyh1002, very impressive! l do have a question: The hot end unit that moves up and down surely has some play in it otherwise it would not move up and down. When the hot end is in the down position how is the unit held in its precise x-y-location? On my UM3 the precision comes from the spring pressing the moving hot end unit down against a tapered seat in a metal part at the bottom of the head. Which part or which lay-out in your design ensures the x-y-position precisely? Or do I expect problems where there is none??
  2. Hi Experts, for my Mark 2 UM2 I want to use Cura 4.0. Are the current Mark2 resource files suitable? When I want to activate the Mark2 UM2 in Cura 4.0 I get the following error message and do not know how to correct my files: See enclosed screenshot. What can I do? Or stick with Cura 3.3.1 ? Thanks Gunther
  3. I have my "UMO 2+" with mark2, which is beside the wooden frame an UM2.. And then I only have one interface. Can Duet be used with Tinker mark2 firmware??
  4. Hi experts, I am thinking of building a larger printer using the Jennyprinter 4x340 as mechanical base. Build size would be 340 x 220mm. I intend to use Ultimaker 2 electronics and also upgrade to mark2 dual extrusion. My question is: Do I need a special version of the firmware or is it sufficient to adjust the size in Cura? Thanks Gunther
  5. Hi morfeushav, I understand that the lifting is through the wave spring on each side and the extruded "active" filament presses the relevant nozzle down. Once retract the nozzle goes up. That part is quite ingenious in its simplicity. I do not fully understand why this needs water cooling.
  6. Hi conny_g, I am having very similar problems. I thought it was down to movements of the head in x-direction. I keep printing new couplings to avoid the slight movement of the bottom magnets. But since I read your findings I think I have something similar in addition: First I calibrate properly using the well known xy scales for adjustment. Then I print something and the surprise offset is more the .5mm out in both directions. That is right from the start. Then I used some calibration model (four checkered square) in the center and calibrated from there.
  7. I just want to report that on Cura 3.2 on MacBook I do not have proper letters, see attached screenshot. I have this only on 3.2. Any suggestion what to do? Thank you.
  8. In my opinion the difference in support structure is due to the different characteristic between Cura 2.5 and Cura 3.1. It is not the difference in UM2 vs UM3.
  9. Thank you, maybe I should just try and filament loading will give me the first indication where I stand. Sometimes one reads too much instead of just trying ;-)
  10. Thank you very much, the factory reset stopped the extended z movement. Now I will go through the whole settings again including a renewal of the firmware. One other question: I have used the stepper of the UM Original feeder to drive the UM2 feeder for the second unit. It is this one. Also I believe the same the UMO uses for xyz axis movement. Can you tell me how many steps I need to adjust to and - more important - where do I change the steps per length?
  11. Good morning experts, I am stuck with my Mark 2 conversion and need some help. I had my Ultimaker original - very original, one of the very first - converted to be an UM2+. This "UMO2+" is a very good printer and gives a lot of joy. Next step was to convert to Mark 2. Everything went fine with one problem remaining. When I want to "adjust z" my print bed moves up and never stops. The print bed then crushes into the print head. I do not know how to make the print bed stop near the nozzle. Now, one suspicion I have: Loading the Tin
  12. I do not know how to reduce the z-stpper current on the UM original. Must be in the firmware. But I do not know how to open or view the uploaded firmware. Meanwhile I got a response from Ultimaker support and hope for a helpful outcome of the ongoing discussion.
  13. Printing sideways with a fan: I had put the printer on four blocks and directed a cold blower towards the electronics. I could print alright but gave up after 10min. I proved to myself that the overheating was the problem. With the original fan replaced I thought that the problem would be solved. But it only improved - meaning printing stops later. Presently I have to travel and need to investigate later. Maybe in the meantime Ultimaker can come up with a clever suggestion. Thanks for the 19 to 12 V converter hint, will check again that the fan works properly.
  • Create New...