• 21 Posts
  • 385 Comments
Joined 1 年前
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Cake day: 2023年7月29日

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  • It will decompose, but only it a hot compost pile.

    To some extent, this means large scale composting, but you could theoretically do it at home if you live somewhere with four seasons (specifically fall) and have trees that drop leaves on your property or nearby. Let your grass get a bit taller as the trees start turning and mulch/bag the grass and leaf mixture. Bonus points if you have a ratio of 30 carbon (brown stuff) to 1 nitrogen (green stuff) by weight. “Normal” composting into. This is why big piles of fresh mulch get pretty warm and stream in the middle.

    I don’t know what it would take to break down PLA in compost, but suspect it would take more time than a typical home pile if you manage to get it hot. It would probably be benefit from shredding to speed things up, as would the rest of the stuff in a typical compost pile. Amusingly, your PLA is probably ripe for getting whacked with a hammer, or a hammer mill.


  • That looks like under-extrusion to me.

    Here’s the quick “tune your extruder” arc:

    1. E-steps. Mark your filament about 125mm from a known reference point, extrude 100mm, measure again. What percentage of 100 did you get to? Adjust your e-steps accordingly and try again. You should never have to mess with this number ever again unless you physically change parts in your extruder. More detailed guide
    2. Temperature. Print a temp tower. Choose the temp that looks the best and offers good layer adhesion. Your filament will extrude differently based on your extruder temp
    3. Flow rate / extrusion multiplier. This will require more typing from me, but there are a number of ways you can generate test prints for this, so check the linked guide. More detailed EM multiplier guide.

    After you get #1, never touch it again unless you change things like your extruder gears. #2/#3 are a good idea whenever you start a new roll of filament, although I personally don’t bother unless I’m trying a new material, brand, or color.






  • Agree that the result won’t be a perfect print, but I personally prefer this route over printing the other half, sanding the first half flat to account for a partial layer like you said, and then gluing.

    I guess it comes down to what you goal is. 90% of my prints are functional and I don’t really care if they’re a bit ugly at times.


  • Do you have a pair of calipers that you can use to measure print height? If yes, don’t take it off the bed. Measure the height of the print, delete those layers out of the gcode (it’s just a text document after all), and reset. Note that the gcode and printer setup might require some fiddling to get right, but I’ve resumed prints like this without problems before. They don’t all look perfect at this layer, but they’re certain better than nothing. Once the print loses its hold on the bed, all bets are off.





  • Is the print stopping or does the printer keep going like all is well?

    If the printer is continuing like everything is normal, you can surmise that the issue is either the heater, the extruder, or the filament path.

    What does your temp graph look like during the print? Oscillations = potential wiring issue, especially if they’re not present for the whole print.

    Have you caught the printer doing this? Is the extruder clicking? If yes, something is preventing the filament from moving through the extruder. You’re either developing a clog or something is preventing the filament from feeding (binding, etc).

    If the extruder isn’t clicking, and the print continues for a bit, does the extruder slowly chew through the filament? If yes, you probably need more tension on the feed screw. I would still suggest looking for souces of binding.





  • I agree that building a Voron is a project. I had a Pursa I3 clone (knockoff) that I used to print most of my parts on. If you don’t already have a 3D printer you can use the Print it Forward program to get printed parts shipped to you. Parts aside, your first build will take an easy 20-40 hours. This isn’t because the build is hard, it’s just that the build is long - especially if you want to have your wiring just-so. On the upside, you’ll have a very good knowledge of how your printer operates at a physical and firmware+Klipper config level once your done.

    Be wary of better. From a quality of life perspective I would absolutely put my 2.4 ahead of a Prusa. For example, I can mechanically level my bed via automation. That said, expectations often outstrip reality. Beware of what you’re getting into.



  • Jumping in here, a lot of what you said checks Voron boxes. Fast, CoreXY, can print a range of material, completely open source. I really like my 2.4. You can self source the whole BOM from wherever you want. There are a few BOM in a box options, including some put together by US companies (West 3D) but with whatever you buy a decent quantity of the BOM is going to originate overseas.

    There’s a very large community around the printer, along with tons of mods. The only thing it doesn’t do out of the box is multi-material, but there are mods for that.