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John2021

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  1. Thanks @Labern! I found the video is very enlightening. I don't know that CURA is capable of doing laser-engraving..I have the Ultimaker Cura 4.8.0 version installed, and don't know if it is compatible.... Do you have the link that you can share? Which version Cura you had it for? Many thanks.
  2. Thanks @GregValiant, @Torgeir, @ahoeben for your suggestions. I found a web page to do Ultimaker 1 & 2 Laser Upgrade Implementation https://jtechphotonics.com/?page_id=1336 I found a youtube "Ultimaker 2 Laser Engraving" from @Labern. This is probably what I need.. What program does @Labern use to do laser engraving?
  3. Thanks @GregValiant for your insight.. I tried a CAD program, and get the outline of a shape. Then let Cura generate a G-code. Then I copy the part of the codes to do just one layer..So far it is doing the trick..:D
  4. 3D printer would allow me to control Z, the build-plate height, which is helpful in the electrospinning process. By converting 3D printer into a laser-cutter, I would be able to achieve my goal. Basically, my question is to find an appropriate laser-cutting program to work with Ultimaker 2+ printer..
  5. Thank you very much @GregValiant! I have learned a bit more about CURA software that is currently installed on my computer. IT has one of the G-code flavors called "Ultimaker 2" in its machine setting, (Marlin, RepRap, Griffin are also options, but I suppose I should choose the type that matches my printer). IT has a MONITOR tab to allow users to control the printer and send G-code. So far, sending G0/G1 is all I have tried to do some basic linear movements, to move x, y, z to a particular position. The slowest step motor speed is 24 mm/min, or 0.4 mm/s (exact
  6. Hi Greg, Thank you very much for the reply. A higher feed rate, like 24 mm/min is very much acceptable for the moment. It is great to know that I can control the speed.. I know nothing about Gcode, and open-source software. What software I can use to communicate with the Ultimaker printer and write a Gcode file? Is Marlin firmware capable of doing what you mentioned? To allow the X&Y move along a specified pattern, can I draw it, or do I have to write a code for it? If I want to do a line scan ||||||, I guess I can try to write a Gcode. But what if I want to follow a co
  7. Anyone can offer some insights on how to control X&Y&Z independently? I am hoping to convert our Ultimaker to a medical device, a tool to electrospin biomedical sensors. Thanks in advance John
  8. I would like to use the Ultimaker printer x/y arms to move the nozzle along a specified pattern (a circle, or linear) at a very slow speed, 1-10 mm per minute. Meanwhile, z position can be set to a specific height. Do you know a software that can communicate with Ultimaker 2+, and controls x, y, and z parameters separately? And allow the nozzle to follow a linear pattern at a specified speed? Many Thanks John
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