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  1. I'm trying to construct an external heated bed controller for mu UM2. I have upgraded the hotend andit uses more current and the onboard electroncs cant handle the hotend and heated be on together. I want to use these: https://www.reprap.me/heatbed-temperature-controller.html https://www.reprap.me/dlion-heating-controller-mos-module-hot-bed-power-expansion-board-for-all-3d-printer-mainboard.html Problem is the controller uses a NTC sensor not the PT100 the heated bed uses, When all is connected I get an over temperature warning with the PT100 connected.
  2. If I use the Marlin gcode flavour do I need to change any machine settings?
  3. Hi Imusing and Ultimaker 2 with Cura 4.4.x but cannot get it show the weight of the model after slicing. See the attached image. I have the price and spool weight entered in the printer profile but the rest of the boxes are greyed out. Am I missing something or is this not possible? The people I work for have a spreadsheet cost calculator that works by weight and not lenght of material used. Any help welcome. Regards Graeme
  4. I'll ask this another way. Is it possible to use an UM3 printhead on a UM2? I know the wiring is different with the pcb in the print head but surley the other end of the cable could be adapted to the UM2. Regards Graeme
  5. Hi all Has anyone modified their UM2 to use the print cores rather than the standard hot end? If so please point me in the right direction. Thanks in advance Graeme
  6. Sorry about the late reply. I have thoroughly checked the printer. Here is the current status, UM2 original except for the Buildtak base in place of the glass bed. Latest Ultimaker firmware uploaded from Cura 4.3.x. It prints as it should, no temperature over shoot. I reloaded the E3D volcano and tried printing with PLA settings and every thing went ok. What I want to do is to have a system to print at higher termperatures in a controlled enviornment with a hood and door with extraction for ABS etc. This is where the Tinkergnome firmwarecome in as before compi
  7. It's an Ultimaker 2, factory reset done, latest firmware, not sure which version, installed through Cura. Upgraded with Titan extruder from E3D, E3D PT100 temperature sensor, Olson Block and BuildTak bed kit using the standard UM heated bed. Everything else is stock.
  8. OK I have now restored the printer to it's original standard state, latest firmware and oslon block. with the hot end set to 100c it remains around the set temperature with the heated bed set to 40c it remains around the set temperature a PID autotune on the hotend set to 150c a 'temperature too high error is shown Could you please give me your views and advice on this. Regards Graeme
  9. informatin was wrong update to follow.
  10. It's not a cura nor a material nor a g-code related problem becaus in my original post it points to hardware. It seems the standard power supply, UK, is not up to supplying the extra power needed for the E3D Volvano hot end. One of our suppliers indicated the power supply issue, it's one thing I hadn't considered. The original power supply is 9.7 amp so goning to try a 12.5 amp because the Volcano uses a more powerful heater element.
  11. Hi all I've an over heating bed that just keeps on heating at the start of a print cycle. The print will start if I manualy set the bed temperature to zero. The bed can be held steady by manualy setting it from the from panel. The bed stays cold when printer first switched on. The hardware checks out ok with a multimeter, element reads zero ohms, sensor reads 100 ohms, no errors reported on front panel. So what's going on? Advice welcome. Regards graeme
  12. Hi Thanks for the reply. Yes nozzle 1 holds it's temperature throgh out a print of a one colour model. It also holds the temperature during a two colour print. The issue is it only prints the first one or two layers on the first nozzle then stops extuding. I use PLA normally about 205 degrees but increasing this to 225 makes no differnce, yet If i print a single colour model immediatally after the failure of the two colour model there is no issue. Even a change of colour of PLA makes no difference. Graeme
  13. Thing is the second nozzle is held at a lower temperature but its the first nozzle after about the 2nd layer it's loosing extrusion.
  14. Hi all I have an ultimaker2 with two Olsen Blocks, using Cura 4.2.x. My problem is that if I print a model with one colour it works fine. However when I create a two colour model with inlaid numbers only the first 2 layers print correctly and then it seems to loose extrusion. But when I abort and try another single colour with the same nozzle it prints fine. Slowing down the entire process and raising nozzle temperature doesn't fix the problem. Any suggestions on how to fix the issue welcome. Regards Graeme
  15. Has NO ONE any experience of a Volcano on an Ultimaker 2 !?! The PID Autotune overshoots and shuts down even at a target of 100c yet when I heatup the nozzle to 100c it goes to 140 and then settles down to plus or minus a few degrees. Doing a manual tune following various links doen't work either. Any Ideas on setting or what to do? Regards
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