• 16 Posts
  • 555 Comments
Joined 3 years ago
cake
Cake day: July 29th, 2023

help-circle
  • It’s normal

    This is disappointing. Not because it’s normal, but because so many photos of prints you see on the web extolling print quality are in ideal lighting. It’s misleading at best. I will say surface quality is oodles ahead of my old I3 clone, but this has always miffed me.

    I think it’s more visible the thicker your layers are

    I do tend to print in chunkier layers. Also thicker extrusions and nozzles…

    If you’re printing with ASA, perhaps you could use some light acetone smoothing

    It doesn’t really bother me as my prints are functional, but there’s always been this nagging thing in the back of my head regarding surface quality relative to what folks on the internet present they achieve. The photo in this post is guilty of this TBH. The print looks way worse on the bed thanks to a taller printer with top mounted lights resulting in a steep lighting angle relative to vertical surfaces. It’s like going on a picturesque trip only to find out that all the photos you’ve seen online take a lot of liberty with timing (ie super early/late in the day) and/or framing.



  • 2.4 R2 owner chiming in. I built mine about 3 years ago after window shopping for a year.

    Why Voron in 2026?

    • They’re fully open source. This has a couple of benefits such as (basically) guaranteed repairability in the future and super easy modability. Basically all the parts are standard, so you should have no problem sourcing replacements. Want to change something? Download the official CAD and remix
    • Being open source means there’s a huge quantity of official and unofficial mods available, as well as tons and tons and tons (and tons and tons, but I’m getting tired of digging up links) of commercial hard parts if you want to tinker. Yes, commercial printers also have mods available, and even some hard part swaps, but Voron is next level if you like to tinker. Even if you don’t like to tinker, some mods are fantastic from a quality of life perspective and of course there are many many vendors that will sell you kitted parts
    • The printer itself is highly capable in ways that go beyond just being CoreXY. Both the 2.4 and Trident can mechanically get their bed and gantry in plane because they use multiple z-steppers to move the bed (trident) or gantry (2.4) up/down. Bambu’s printers use a single stepper and a belt to connect things
    • Even if you buy a BOM in the box you’ll learn a ton building the printer

    Why not Voron?

    • No official store or kit means you’re going to either rabbit hole who to buy a BOM-in-a-box from or spend a lot of time self sourcing. I personally went with West3D’s configurator
    • You’re building a printer from literal nuts, bolts, linear rails, and extrusions. It’s not a hard build, but it is a long build. If you can put together IKEA furniture you can build a Voron, but it’s going to take 20-40 hours
    • They’re not the budget proposition they once were
    • You’ll spend more time thinking through the build up front (who to buy from, what components to swap, what out of the gate mods, etc). Easy example: want to tune for resonance compensation? Gotta mount/wire up an accelerometer on the toolhead, unless you use one of the many tool-head PCBs that include one
    • Cable chains look dope, but wire breaks are real. They’re easy to repair, but they’re annoying. Granted, you can just go umbilical out the gate. LDO’s Nitehawk SB is dope
    • You want to go even bigger. You can stretch a Voron taller, but Rat Rigs go quite a bit bigger

    Edit: final thought. IMO I do not find myself wanting for “tech” and there’s really not much missing from a Voron out of the gate. Nearly anything a Bambu can do is easily adopted to a Voron if you want to.


  • IMALlama@lemmy.worldto3DPrinting@lemmy.worldFiles
    link
    fedilink
    English
    arrow-up
    2
    ·
    edit-2
    6 days ago

    Self designed very specific objects are where it’s at regarding 3D Printing IMO. Once you get into the habit of realizing that you can print a part for <x> you’ll find yourself doing it again and again.

    Examples I’ve designed and printed include:

    • two bluetooth speakers. I’m getting ready to print my first subwoofer
    • tons of replacement parts (parts for kids toys, replacement knobs for our stove as the oem ones are $50/pop, etc)
    • wheels with TPU tread and pockets for bearings for a fold up wagon. We’ve used that to cart our two kids around for 3 years now

    You also find yourself being more adventurous with modifying other things knowing you can print interface parts. For example, our outdoor table had a 1.5" hole for umbrellas. We wanted a larger umbrella, which requires a bigger hole, so I cut a portion of the metal center of the table out and made a plastic adapter. I’ve also done lampshades and a bunch of other odds/ends around the house.



  • In my experience, broken tree branches come from:

    • Crazy angles on the supports. This happens when a support needs to ‘grow’ over the print in order reach the thing it needs to support. This ultimately comes down to part geometry, so there’s not a ton you can do here if you can’t change the geometry or orientation of the part
    • Poor bed adhesion causing the trunk to separate from the bed. Clean your bed with dish soap and dry it with paper towels. Make sure you have a good first layer by getting your your bed and gantry in parallel planes and double check your z-offset. Bonus points if you can do a bed mesh between prints
    • The extruder catching on a branch and breaking it off. This is usually due warping or over-extrusion. Warping can be its own rabbit hole. Over-extrusion is easy to tune for, especially if your slicer has built in calibration aids (eg OrcaSlicer, SuperSlicer, etc)
    • An ambitious slicer not making the supports themselves very strong. Slicers these days seem to avoid thin/tall trees, but they’re still usually single perimeter. I’ve configured my slicer to use 0.6mm thick walls on supports
    • If you have a bed slinger, tall supports can wobble. Slowing down acceleration/jerk is really the only way to combat this

    Obviously, these can all be a bit interrelated.

    The support in this print is basically vertical (no crazy angles), I generally have great bed adhesion/my printer can mechanically make its gantry in plane with the bed/I run a bed mesh every print/I use klipper_z_calibration to get a consistent first layer, nothing’s warping and I’ve tuned my extrusion multiplier for this spool of filament, the support itself is strong due to its girth at the base and wall thickness, and CoreXY means that the support doesn’t really move unless the extruder is dragging some.


  • I agree. In fact, that’s what I tend to do - slice up a design by splitting the body/bodies and printing test pieces where tolerances matter. Things like latches, hinges, pieces that have to fit with one another, etc. I’m not sure how practical this approach would have been for this print due to its final orientation, but it’s a really good practice.

    I think I got a bit too comfortable with things going per plan over my last batch of designs :( I’ll also admit to being in a bit of a time crunch. No deadline, but I have younger kids so time to model and print is somewhat limited. This is a good reminder that rushing can actually make things take longer in the end.

    Massaging this print to fit wasn’t practical. Despite being off by 1% that’s still 2mm of material to remove over some pretty big spans. I did take a chisel to the cutout, but man is ASA tough. PETG is much easier to do that with lol.

    Thanks re: print looks great. It’s super solid, so I’m very happy in that regard. I don’t know about you, but lighting greatly impacts how the surface quality of my prints look. Hard/direct light at a steep vertical angle makes the faces look pretty rough, but more diffuse light coming from the side makes the parts look great. I am not sure if this is normal, especially for a larger CoreXY with long 6mm wide a/b belts, or if this is something I can dig into and improve.





  • My hobby space is largely in my basement. I have a 27" US General (Harbor Freight) roller cab + topper that stores a lot of my tools with the exception of tools I use for automotive work. Those live in my garage in a second topper. You’ll never be able to beat the density of a toolbox and the drawers really help with organization (the hammer drawer, the measuring drawer, the pliers and what not drawer, the cordless tools drawer, etc).

    I have a partial wood shop in my basement that includes a DIY work bench. It has a number of large (24" x 30") pull out shelves in the middle for hand tools. Pull out shelves are amazing.

    My printer lives on top of two stacked IKEA LACK tables. From a concept perspective, it’s nice. It gives a space under the first table and a shelf for printer things like filament, a dehydrator, etc. In reality, the stacked LACKs are super wobbly and more tightly spaced shelves would be more practical. I want to add pull out shelves to it, which should help give it more rigidity, but I might just build a printer stand from scratch.

    So basically… pull out storage that stacks is great.




  • The printer is a 350mm3 Voron 2.4, so the scale of photos of things on the bed is a bit off. I swapped to ACM panels and added radiant insulation after my last big print lifted the bed. All was well until this one, but I also haven’t printed any larger rectangular things recently. Printing this 240mmx280mm thing flat lifted the mag sheet.

    I’ve been printing long enough to remember binder clips. IIRC they were originally a reaction to the magnetic sheets originally used getting significantly weaker as temps go up. I would be pretty surprised if clips would help in this case, due to the forces involved thanks to the size of print, but it would never hurt to try I guess.







  • As someone with a foot in Windows and Mac, they both suck for different reasons and you’re trading pain in one for pain in the other.

    Windows sucks because of all the stupid one drive and AI garbage. No, I don’t want my desktop and tons of other directories in one drive, stop asking me. The constant migration of settings out of control panel is maddening. Windows 10 end of life is fine, but cutting off older PCs from windows 11 for “reasons” was an absolutely horrible choice.

    Mac is fine if you do super basic computing, but if you want to do much of anything it’s very annoying out of the box. Window management is annoying unless you get an app like magnet, the ribbon can’t be displayed on dual monitors and there’s no way of fixing the primary monitor, keyboard shortcuts are inconsistent across applications like command delete and keyboard shortcuts in general suck (command + shift + 3-5), the OS greatly dislikes network storage, etc etc. Macs were somewhat isolated from marketing needing a “new” OS every year until recently. Now they’re in the change for the sake of things to list on the new OS page trap.

    Linux isn’t without fault, but my experience has been much more pleasant.



  • Late to the party, but…

    How well tuned is your printer? This whole print is a torture test with lots of retractions and thin walls. For things to go well you will have needed to dial in flow rate, print temperature, cooling, and retraction. As someone else said, if the nozzle catches on an unsupported lever arm (aka one of the vertical pieces before a horizontal bridge has been completed) it can/will break it off.

    If your printer has never pulled off this type of print before I suggest running through some basic tuning tests before worrying about potentially wet filament unless you live in a very humid environment. I live in a temperate climate where it doesn’t generally get that humid. My printer and filament live in my basement, which has a dehumidifier in it. I’ve never dried a role of filament and I leave spools unfinished for 6+ months. That’s not to say that you never should dry your filament or that doing so won’t improve print quality. I’m just trying to say that I have not experienced a higher rate of print failure with older spools.