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.

The PWM signal once it starts getting jittery is basically only 0 or 100% and corresponds pretty well to the swings in temperature.

I’ve moved the head hot and cold by hand and haven’t gotten any weird behavior. Normally when I have a wire break there’s a very specific location that will reliably fail. That’s not the case this time.

I wouldn’t think so, the printer never did this previously. I need to put together some g-code to make the print head move around at a pretty high rate, but without actually extruding anything.

I suspect it’s motion/jiggling around related. I guess I could whip up some g-code to see what happens when the printer is still vs when it’s moving rapidly.

Thanks for the nudge, will follow up.

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.

Find people who care about what they’re working on and they’ll go well beyond the extra mile. As an extra motivator, make it clear the company won’t be around if they don’t succeed. I’m sure these employees have shares, but tha only really matters if the company succeeds (extra motivation!). Unfortunately, there have been a ton of green/green-adjacent automotive “startups” that have struggled to gain a foothold. See also:

• Fisker
• Faraday future
• Detroit Electric
• Elio Motors

(I’m sure many others)

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.

Tons of incremental updates.

Based on the printer in the picture I think you have one of the answers, lol.

The other answer is slicers, but if you’re using Bambu’s you’ve also seen that change now.

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.

I think you got a lot of good replies, but at a glance no one said “Prusa good!” so here’s that reply. Prusa printers are workhorses. They run their own machines in a print farm printing parts for the printers they sell and iterate/bring tweaks into production.

If you look at posts from a year or more ago they’ll frequently appear as trustworthy/hassle free options. They’ve somewhat fallen out of favor from a price to performance ratio, but if you want a hassle free printer so you can just worry about printing they’re still a good option.

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.

Qualcomm’s stuff is within single-digit percentage points of the current-gen AMD and Intel chips both in power usage, performance, and battery life

Back in June, the new Snapdragon X processors were a lot more efficient than their x86 based counterparts. I can personally attest to much lower levels of heat generation.

The problem is that the current tradeoff is that huge amounts of the software you’ve been using just does not work, and a huge portion of it might NEVER work, because nobody is going to invest time in making it behave.

I agree with the sentiment, but IMO this is a PC and Windows problem. I would also extend this beyond pure comparability. I say this for a few reasons

• I lose about 5% charge/day with my laptop asleep. It does wake up very quickly, but 5%/day feels like a lot. At this point, I don’t think Microsoft has a strong incentive to really optimize the kernal for efficiency
• Historic massive variability in hardware across devices also makes it hard to optimize efficiency, although the current crop of snapdragon x laptops seem to have less variability
• One of the strengths of windows is that it can run applications written 20+ years ago fairly reliably. There’s a ton of software that’s still floating around that hasn’t been actively supported in years. I don’t see all of these software companies desiring to port their code over, especially without guarantees that the market will adopt ARM (the Apple approach) or until they see the ARM adoption rate go up (the current Windows approach)

All that said, I’ve had zero issues with emulation so far. I never personally used a M1 max when they launched, but from reports of that era the current Windows experience is at least as good as that.

I own a Lenovo Yoga slim 7x Gen 9, which is powered by a Snapdragon X. It certainly checks the “good enough” box. I use it primarily for photo culling/editing (I’m a holdout dedicated camera user). It is more than fit for purpose there, stays cool, is slim, and although I know the fan has come on a few times I wouldn’t have known if it wasn’t on my lap. When I bought mine, it was also one of the better deals - you could upgrade to 32 GB of memory and a SSD for under $125 in total. The SSD also isn’t soldered, but the memory is. The 3k OLED display is amazing, but if you want the ultimate battery sipper it’s probably not the best choice. I still get tons of runtime per charge, but am somewhat sad that I lose about 5% charge per day thanks to the laptop not really being off while asleep.

The biggest downside is linxu support is very hit and miss depending on the laptop in question, which means you’re tied to windows 11. I don’t have the time to tinker with it, so I haven’t looked much further into it than this.

It’s not just the surface devices anymore. In June this year, a fresh wave of ARM powered laptops from a verity of different OEs launched. There are offerings from Dell, HP, Lenovo, Samsung, Asus, etc.

It goes beyond this to the things people print. There’s a lot of… low shelf life dudads turned out by a subset of our community. For example, a coworker printed each of the ten of us a 4" tall Groot as a holiday present pre-covid. I bet most of those wound up in the bin. I totally get the hobby of collecting trinkets, but often wonder about the end state - it will all eventually need a new home or will end up in a landfil.

Plastic recycling is a fine idea, but in many cases the material winds up getting shipped overseas and burned. It’s also the least preferred option of reduce, reuse, recycle. It is cool that some filament companies are now accepting scraps, but that’s not very common (yet?). I also wonder how they deal with contamination. Sorting the different plastic types is difficult today from my understanding. That and low resale value is why plastics recycling is struggling.

All that said, I am a massive believer in functional prints. You can breathe new life into existing things and the things you create can be here for a long time.

You got a few good replies, but I just want to briefly mention build volume. Nearly everything I print is functional. Splitting prints into sections isn’t the biggest deal, but being able to print things in one shot is nice. Consider the size of things you’ll be printing and ask if you think you’ll be happy.

I’ve never heard of PCTG before. A quick Google search and I’ll probably be ordering a spool.

I’ve had similar experiences. PLA is very stiff, which also makes it brittle. I have quite a few functional PETG that have been going strong for years. Now that I can print ASA too, some of my newer functional prints are transitioning materials.