Assembling PrusaI3 at RogLab

On April 27, 2014 by admin

The past 12th March, 2014, we gathered with our friends at RogLab to assemble a PrusaI3. This post is to document the process. Thanks to Tea, Nejc and Ivan for being there with us!

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To begin with, we prepare the pieces needed:

  • 5x NEMA 17  stepper motors
  • 1x Melzi electronics
  • 1x Metacrilate frame
  • 1x set of PLA printed plastic pieces
  • 1x set of rods (threaded and plane)
  • 1x extruder J-Head MK-V hotend
  • 10x linear bearings
  • 4x radial bearings
  • 2x pulleys and belts
  • M3 nuts and bolts

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Then, we can prepare the base of the printer, mainly composed by threaded rods tied together in the corners with printed legs.

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The position and orientation of the Y-axis motor is very important. For that reason, it is best no to tighten anything until all the axes are put together.

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…assembling the platform of the Y-Axis…

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..and voila! The base and Y-Axis are ready…the belt was carefully located but still not tightened, as the rest of the printer is still to come…

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The X-axis is relatively simple…

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..and soon it is ready and waiting for the Z-axis to be completed.

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Once the X-Axis is assembled to the Z-Axis, we can proceed to the most complicated element: the Extruder!

It consists of two parts: the cold end (made of printed plastic, a hobbed bolt, two radial bearings and a NEMA17 motor) and the hot end (basically the MK-V and a ceramic resistor)

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We attached it to the X-Axis and now we have to carefully display the wiring. The cables are everywhere now!

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This is an Arduino Mega to which the RAMPS gets attached

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However, we chose a Melzi for this project

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..and this is the result ready for calibration!

Total time: about 6 hours of nice assembling and creative chatting!

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