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EdgE last won the day on January 3 2018

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  1. Generating gcode for this solution is pretty simple, like you do this with an UM3. After a nozzle switch (T0/T1), cura is executing the additional gcode automatically. This could be found in ultimaker2s_1st.def.json: "machine_extruder_start_code": { "default_value": "G0 F9000 X219 Y17.5\nG0 F1000 X223\nG0 F9000 X219" }. Here you could place the commands for doing the switching movements. See working example here: http://www.khwelling.nl/3d/pic/um2s_cura_definitions.zip (These definitions are partly copied from UM3 & UM2. Be aware to save the right file
  2. Thanks, well a colleague has also one printer converted to this solution. He also created the Cura 3.x definition files. His switching solution is activated by hitting the slider blocks. That will be a little bit quicker, but you loose also some mm printing space in x-direction. I know also, that some other people are busy with this mod, but have not seen any pictures yet.. So there is a Cura 3.x machine definition available. (I will update this on my webpage.) The Cura modifiction is working very simple. Within the extruder definition files (ultimaker2s_1st.def.json
  3. Version 1.0.0


    After searching the net again and again, I did not found a nice Dom Tower variant to print. So I decided to create my own versions: Single piece version (20 cm tall) Duplo compatible (big colored one, 53 cm tall) Lego compatible (PLA brons fill & Glow in the dark) Christmas edition (PLA silver, optional having 3 electric candles inside) Unfortunately the electric candles are still somewhere in China so I'm still curious how this will look like.. Stl file could be found here: https://cults3d.com/en/3d-model/architecture/dom-tower-utrecht (Sin
  4. @Gudo, nice design, that open C-frame. For inspiration: have a look to this nice DIY printer: http://well-engineered.net/index.php/en/projects Well, that's not completely true. You do need to buy longer belts and some more pulley's for sure. You also need to print some new brackets and optional create a second top plate (wood will do). But all other parts could just be re-used in a different order..
  5. Hey Gudo, very nice build! I also like the way you solved the object cooling fans, I have to copy that I did a year ago. Transformed UM2 having corexy inside the frame, while using standard UM2 firmware. I did have some problems with "define Quick_Home". You should not use this option in combination with corexy. I'm also thinkering on dockable um3 cores. Downside of using ultimainboard, is having only 2 heaters available (+build plate ofc). While using corexy, there should be many more cores inside...
  6. I got this switching mechanism idea already a year ago, but never took time to realize. Since I'm printing now a couple of months w/o any switching issue's, it's time to share this upgrade here on the forum. It's working with a simple cam-plate, which is moving both nozzles at the same time. The cam-plate is bi-stable, by using the existing (UM2) springs which also hold the teflon isolator in place. Benefits of this modification, besides enabling 2 material prints: Simple modification on the existing hardware Switching is done above bed clips, so no loss of additiona
  7. Drilling the big feeder hole in the UM is quite easy, using a "HSS step drill": Which is also rounding the corner a little bit.
  8. Version 1.0


    These ultirobots starting smiling when walking down the road by them selves Adding some mass, will help the original (1:1) running faster. For more details see: youmagine.com - ultirobot happy walker community contest: a robot walks into a bar...
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