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Cake day: July 29th, 2023

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  • I have a 350mm 2.4 and chose it specifically because I tend to make bigger things. The flying gantary is super cool looking, but it does come with a downside: all your tool head cables, if you switch to an umbilical instead of the cable chain, and your filament run have to accommodate the gantary getting ever higher if you have a tall print. It’s not an unsolvable problem, but it’s also a problem that doesn’t exist if the bed is the thing that moves.

    One of the pluses of a Voron is that it’s enclosed, which means that you can print ASA/ABS for pretty rugged prints. This means needing to preheat the chamber - especially for larger prints. On a big printer this can take quite some time, and also requires some insulation, but there really isn’t a way around it without doing something silly like putting a heater other than the bed in the printer. Fortunately, if you’re printing a smaller part you don’t have to worry about preheating.

    A three final thought on a big prints:

    • when prints get big enough basically everything will warp without a heated chamber. This is especially true for ASA and ABS but is also true for PETG. I haven’t tried a big PLA print, but I imagine once they pass a certain size they’ll warp too
    • if you want fast prints you should look at wide extrusions and thicker layers. I run a 0.6mm nozzle basically all the time with 0.8mm or 0.9mm extrusion widths and 0.3mm layers. It’s all about how quickly you can lay down plastic in mm^3. This will make your bottleneck your hot end
    • even with chunkier layers big prints can take a long time. I printed a speaker and it took something like 20 hours for the biggest body and it was “only” around 280mm in circumference and 270mm or so tall. Granted, if I could have fit this on my i3 clone it would have probably taken 5x longer due to a much weaker hot end.

    There are bigger printers out there, but between warping and print time I don’t know that I would personally want one. For the rare times when 350mm isn’t enough I can always split parts, but that hasn’t been an issue so far.




  • Sorry for the delayed reply. No, too warm won’t cause warping. However, the hold side of your hot end will at best be ambient temperature. If it gets too warm you can clog your nozzle.

    My view is “if the chamber doesn’t need to be hotter why make it hotter?”.

    If you were printing ASA/ABS you want your chamber to go basically as hot as you can get it though - especially if you’re printing something big.





  • The ender 5 isn’t a bed slinger so it should be relatively compact for its print volume. You can certainly get a smaller printer. You can do this by getting a more compact printer and/or sacrificing build volume. If you want compact you’re probably going to want a coreXY

    For example:

    • your ender 5 pro is 552mm x 485mm x 510mm and has a build volume of 220mm x 220mm x 300
    • a Prusa i3 mk3 is 500mm x 550mm x 400mm and has a build volume of 210mm3 (the bedslinger is indeed bigger)
    • a 300mm3 Voron 2.4 is 460mm x 460mm x 480mm and has, well, a 300mm3 build volume. They also have a 250mm version that will probably save another 50mm in every dimension
    • a Prusa mini is 380mm × 330mm × 380mm and has a build volume of 180mm 3
    • a Voron 0.2 is 230mm x 230mm x 250mm and has a build volume of 120mm3
    • I gave up on finding dimensions on the salad fork, but it’s probably going to be even smaller than the v0 due to using 15x15 extrusions instead of 20x20



  • Warping! Others have hit on a lot of this, so I’ll try to be brief.

    • warping is due to the plastic shrinking as it cools. This builds tension in the lower layers of the print
    • bigger prints are naturally more warp prone
    • part shape and aspect ratio also plays a role. Parts with big aspect ratios (eg much wider or longer than the other axis) are more warp prone. Parts with sharp transitions are also more likely to warp
    • different filaments are more warp prone than others. PLA is least prone, followed by PETG. ASA/ABD are the most warp prone I’ve printed so far
    • fiddling with temps and speeds can help
    • make sure you have good bed adhesion (clean bed, good first layer, etc)
    • having good bed adhesion will only take you so far. I’ve had prints pull my magnetic bed plate up
    • you can try printing a draft shield around your part (think a skirt as tall as your part)
    • IMO eclosures are the way to go for warp prone parts. You’ll need to be somewhat careful about chamber temps getting too high (this can cause nozzle clogs for PLA/PETG) or not getting high enough (ASA/ABS will still warp in a cool chamber). My enclosure has a removable lid that I pop for PLA/PETG and has insulation/bedfans/a filter for ASA/ABS