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Type: Posts; User: Martin_au

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  1. Replies
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    Finished my chess set

    Printing was the easy part. Making all the 'voxels' was not much fun.
    Full sized set. Took about 120 hours of printing.
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    Common point of failure for this model, IIRC, is...

    Common point of failure for this model, IIRC, is the mosfet or the terminals at the board dying. It's a 12v system so there's a few amps going through the wires.

    If the bed thermistor shows a...
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    Have you tried nylon, or nylon+filler (glass,...

    Have you tried nylon, or nylon+filler (glass, carbon fibre) through your lulzbot?
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    Looks like integrated steppers + lead screws. I...

    Looks like integrated steppers + lead screws. I prefer them. Less bits to come loose. Just treat the combined stepper+leadscrew as though it were a stepper with short shaft, coupler and leadscrw.
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    Even better...

    Even better
    https://www.3dprintersonlinestore.com/geeetech-aluminium-3d-printer-kit
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    On the plus side, the frame looks beast! On the...

    On the plus side, the frame looks beast!
    On the downside, it's pretty likely you're going to need to do the electronics from scratch.
    In terms of what it is, it's some sort of Prusa i3 clone. I'd...
  7. Alternative idea - If there's space for infill,...

    Alternative idea - If there's space for infill, then adjusting the infill percentage will change the density. E.g., 100% infill should sink, but 50% might be enough to float. You could also tweak...
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    It can be quite hard to use Cura (Not impossible,...

    It can be quite hard to use Cura (Not impossible, but there's a lot of work involved). The firmware on the A3 is very touchy about things like decimal places, so there's sometimes a need to tweak the...
  9. Thread: Prusa XL

    by Martin_au
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    I think, given that there is almost no chance...

    I think, given that there is almost no chance that the XL bed would be cheaper than a basic slab of aluminium with an AC heatpad slapped on it, that the question that would need to be asked is...
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    My big silly geology/3D print shelves

    Came together quite nicely. Shame I missed doing monotonic infill on a few of them.
  11. Thread: Prusa XL

    by Martin_au
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    I would expect that could be done, but not with...

    I would expect that could be done, but not with the Prusa design. I doubt they'll do a 3mm extruder. Main challenge would be working the design around the loadcell, heatbreak thermistor and other new...
  12. Thread: Prusa XL

    by Martin_au
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    The tool changer is not e3d’s design. It’s quite...

    The tool changer is not e3d’s design. It’s quite different from e3d’s. “ Our internally developed kinematic coupler mechanism ensures millions of trouble-free tool changes” - Prusa.

    Also, Prusa...
  13. Thread: Prusa XL

    by Martin_au
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    Oops. Should have been dual Z-axis. Means that...

    Oops. Should have been dual Z-axis. Means that the bed is controlled (and can be aligned right-left) using two lead screws. Many printers with larger beds are using 3 leadscrews (and occasionally 4),...
  14. Thread: Prusa XL

    by Martin_au
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    1,494

    Prusa XL

    Has now been announced, shipping mid next year.
    https://blog.prusaprinters.org/original-prusa-xl-first-look_58312/

    My thoughts.
    Some weird - dual bed axis? I expect Prusa can get away with it...
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    Yes. Use meshmixer. Then use the create solid...

    Yes. Use meshmixer. Then use the create solid tool. Set a high resolution and accuracy, using the preserve sharp edges option, and sets minimum thickness that suits your printer.
  16. Here's a slightly better calibration/benching...

    Here's a slightly better calibration/benching print than the dinoclip one I posted. The author of this clip has included STLs for different tolerances. ...
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    Excellent post. Good details. How did you go...

    Excellent post. Good details.
    How did you go about cleaning the bed?
    What temps are you running?
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    2.0.9.2 is latest release (but I don’t think has...

    2.0.9.2 is latest release (but I don’t think has support for the Octopus Pro) - https://github.com/MarlinFirmware/Marlin/releases

    Looks like it was released 25 days ago.

    Got my attention too...
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    Just had another look. Looks like there is...

    Just had another look. Looks like there is support for the STM32F429ZGT6, using the same pins as the old Octo board. Check out https://github.com/MarlinFirmware/Marlin/pull/23008

    It's not...
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    2.0.9.2 has fixes for the octopus. Might be...

    2.0.9.2 has fixes for the octopus. Might be enough to get the Pro working. I haven't had a look at what is fixed though.
    https://github.com/MarlinFirmware/Marlin/releases

    Edit: Nevermind....
  21. Good summary. That project won't probe on start...

    Good summary. That project won't probe on start though. The Prusas do, but the CoreXY just homes and prints.
    It will start the print at around 180,180 though so that would be 'interesting' on a...
  22. PrusaSlicer.

    PrusaSlicer.
  23. Not sure if my "known good" settings are...

    Not sure if my "known good" settings are necessarily suitable for your rig.

    All the slicer settings are also available in the linked project file.
  24. I know we aren't looking at this print, but I did...

    I know we aren't looking at this print, but I did it anyway as I need one. Just noticed this design needs a bit of support under the outer edges of the "wings" (it's a really old design). Done in...
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    Quite a bit. First, please don’t try and reverse...

    Quite a bit.
    First, please don’t try and reverse the burden of proof. That’s a bad faith method of argument.
    Second, I apply photogrammetry in both my work and as a side interest on a regular basis...
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