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  1. #11
    Results of the Benchy print:
    - stringing because of too little retraction as I needed to switch to longer bowden tube after extending the axes
    - few skipped steps in Y-axis at the lowest layers. Might be that I have the motor mounts tightened bit too tight. No skips after those at the beginning, though.
    https://dl.dropboxusercontent.com/u/...2020.00.10.jpg
    - X-axis has banding, it doesn't move very smoothly after all. I suspect that this is because the gear's teeth aren't the smoothest and causes small bumps that the hot end mount structure amplifies. Need to reprint it with Prusa MK2 to get better quality.
    https://dl.dropboxusercontent.com/u/...2019.59.04.jpg
    - Y axis movement is quite good actually
    https://dl.dropboxusercontent.com/u/...2019.59.30.jpg
    - overall the quality is passable
    https://dl.dropboxusercontent.com/u/...2019.59.15.jpg
    https://dl.dropboxusercontent.com/u/...2019.59.40.jpg
    https://dl.dropboxusercontent.com/u/...2019.59.45.jpg
    https://dl.dropboxusercontent.com/u/...2020.00.10.jpg

    So there's work to be done for the rack and gear setup if good quality is desired, especially in X-axis. Also simply by doing more prints, the quality might improve to a point when the parts smooth out in use. Or not .

  2. #12
    New bed carriage part in the making, lots stiffer that previous iteration. Also switched to printed bolts

    https://dl.dropboxusercontent.com/u/...2014.48.24.jpg
    https://dl.dropboxusercontent.com/u/...2014.49.01.jpg
    https://dl.dropboxusercontent.com/u/...2012.42.25.jpg

    For the translucent part the settings were 3 perimeters and 30% infill. Took almost 9 hours to print on Prusa MK2. Maybe bit overkill, but what the heck... cheap 3D Druck PLA.

  3. #13
    Bed carraige installed and much more stable that the previous iteration:

    https://dl.dropboxusercontent.com/u/...2021.39.20.jpg

    Also started modeling and printing some parts to stabilize the frame:
    https://dl.dropboxusercontent.com/u/...2018.46.05.jpg
    https://dl.dropboxusercontent.com/u/...2018.46.13.jpg
    https://dl.dropboxusercontent.com/u/...2018.46.38.jpg
    https://dl.dropboxusercontent.com/u/...2019.55.11.jpg

    For the X-axis, I printed new gear, using Polymax PLA, which should be stronger that regular PLA. Not sure about that, but I guess we'll see:
    https://dl.dropboxusercontent.com/u/...2018.46.21.jpg
    https://dl.dropboxusercontent.com/u/...2018.46.32.jpg

  4. #14
    Testing the parts stabilizer parts:
    https://dl.dropboxusercontent.com/u/...2021.30.47.jpg
    https://dl.dropboxusercontent.com/u/...2021.30.55.jpg
    https://dl.dropboxusercontent.com/u/...2021.31.00.jpg
    https://dl.dropboxusercontent.com/u/...2021.31.28.jpg

    Seems to work very well, even with tension only between two corners. Needs more parts so I can tension the whole thing form all corners and from other side, too. Might do some optimization and simplification about the parts, might have overthought things again...

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