/do-it-yourself — bitchan

Last Thread: Halloween costume edition >Your print failed? Go to: www.simplify3d.com/support/print-quality-troubleshooting >Calibrate your printer. ellis3dp.com/Print-Tuning-Guide/ teachingtechyt.github.io/calibration.html If that doesn't help you solve your problems, post: >A picture of the failed part >Printer make & model >Filament type/brand >Slicer & slicer settings >What printer should I buy? Do your own research, but if you gotta ask; just buy whatever Bambu fits your budget. DIY: reprap.org/wiki/ SLA: >>>/tg/3dpg >Where can I get things to print? thingiverse.com/ thangs.com/ printables.com/ grabcad.com/ yeggi.com/ cults3d.com/ stlfinder.com/ google.com/ T*legr*m >What CAD software should I use? Free to anyone: FreeCAD, Fusion360, Onshape, TinkerCAD, Free to me: Autodesk Inventor, AutoCAD, Solidworks, Rhino, Solid Edge, ZBrush Autistic /g/ooners: OpenSCAD, OpenJSCAD, CadQuery, Microstation Participation medal entries: PTC Creo, Solvespace Mesh free-forming and modeling: Blender Architects: Sketchup, IngeTrazo >What slicer should I use? For everyone: Cura, PrusaSlicer, BambuStudio for Bambu owners. For enthusiasts: SuperSlicer, OrcaSlicer For autists: Pleccer/SuperPleccer, Kiri:Moto, FullControl, IceSL https://pastebin.com/AKqpcyN5⬆↩ 28

lmao+ 1

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It really is interesting to see that people will literally have 0 seconds of critical thinking. Like he pulled that thatch hut model into his slicer, saw it generated 500g of supports and still pressed print (without even a calibration print first given the horrific stringing). Fascinating.+

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>Are you a butcher by trade or why the fuck would you have a butcher apron kek. No, but my father was and I inherited his old stuff. >Ironically you did so well that I think having the hoodie up is kind of a shame, it hides a lot of the craftsmanship on the mask I guess that's the price I'll have to pay. The hoody and its shadow over the mask look way creepier imo. And I will not walk around with the hoody and mask on all the time. Because I don't want to end up all sober and shit.+

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Is your printer occupied 24/7? Mine sits around not printing anything for 99.9% of the year. Time isn't the issue it's material cost and I'd just tell him to pay for it and that chances of failure are high because it's such a big part.+

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+ 25

questions that dont deserve a new thread a place for retards to converse thread theme: silly projects old thread⬆↩ 31

How much airflow does a fridge/freezer combo actually need. My fridge fits in the nook extremely snugly so I figure I should put some holes in the back of the side walls so it can get some airflow. The manual just says "5cm around each side". If I wack a 10x20cm or so hole in the top and the bottom it should be fine, right?+

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I bought some rubberized plates for my home gym, and the problem is that they have this strong rubber smell (If you've been to a gym, you know it). Is there a way to get rid of that? I've tried scrubbing it with hot soapy water, and it kinda worked, but the smell came back after a day or so.+

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fucks sake spent an hour and a shameful amount of money arguing with Claude about the geometry of my woodworking project turns out that when I said "curve" it decided all on its own and for no reason that it HAS to be a circular arc, which ended up imposing constraints that made the rest of the geometry not work, and it was just spinning in circles trying to reinterpret things to get it to work and throwing the resulting nonsense at me. with that completely baseless assumption out of the way, e…+

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Old thread is no longer bumpin' >I'm new to electronics. Where to get started? It is an art/science of applying principles to requirements. Find problem, learn principles, design and verify solution, build, test, post results, repeat. Read the datasheet. >Comprehensive list of electronics resources: https://github.com/kitspace/awesome-electronics >Project ideas: https://hackaday.io https://instructables.com/tag/type-id/category-technology/ https://adafruit.com https://makezine.com/category/electronics/ >Books: https://libgen.is/ >Principles (by increasing skill level): Mims III, Getting Started in Electronics Geier, How to Diagnose & Fix Everything Electronic Kybett & Boysen, All New Electronics Self-Teaching Guide Scherz & Monk, Practical Electronics for Inventors Horowitz and Hill, The Art of Electronics >Recommended software tools: KiCAD 6+ Circuitmaker Logisim Evolution >Recommended Components/equipment: Octopart LCSC eBay/AliExpress sellers, for component assortments/sample kits (caveat emptor) Local independent electronics distributors ladyada.net/library/procure/hobbyist.html >Most relevant YouTube channels: EEVblog W2AEW Moritz Klein >microcontroller specific problems? >>>/diy/mcg >I have junk, what do? Can it run Doom? >consumer product support or PC building? >>>/g/ >household/premises wiring? More rules-driven than engineering, try /qtddtot/ or sparky general first >antigravity and/or overunity? >>>/x/⬆↩ 22

>Diodes pointing towards FB means you get the greater of the two feedback signals, diodes pointing away from FB (wth a pull-up resistors) means you get the lesser of the two feedbacks signals. i see this now (in ltspice.) thanks for saving me a frustratingly stupid board revision. >Even the small amount of ripple that gets through your low-pass filter will be hugely amplified by your error amplifiers, resulting in a bunch of output ripple. are PWM DACs more difficult than i'm perceiving? settling time doesn't really matter to me. 100 khz PWM through a 30K and 100nF RC filter should yield roughly 1.65 mv ripple peak to peak on a 3.3V input. that's close to 11 bits? afaik DACs don't have output ripple but shouldn't this ripple be functionally the same as the precision/accuracy of a 10-11 bit DAC? >Seems like Q1A is a bit superfluous Q1A exists to shut off the charging power path no matter what happens. i selected them to withstand VCC (20V from USB-C.) normal charge termination? shut off charging. buck converter fails and the output rail sees 20V? shut off charging. >If it’s tied to ground in a single-supply circuit, it will clip any negative voltages i don't want to charge a dead battery since it's unsafe. off-board comparators check for a minimum voltage, like 3.0V for an 18650. a reverse polarity cell would read 0V, as would an absent cell. a dead cell would read <3V. comparators trigger SD LATCH, no current flow can occur because Q1A/Q1B are held off.+

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How does an op-amp work?+

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This is what I am being taught in college. It's flat out 2 amps and I have calculated the math all other resistors. Am I retarded?+

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+ 19

Here we discuss microcontrollers (MCUs), single board computers (SBCs), and their accessories, such as Atmel mega and tiny AVRs (Arduinos), PICs, ARM boards such as blue/black pill STM32, ESP8266/32s, RP2040, Raspberry Pi, and others. For general electronics questions (power supplies, level shifting, motor driving, etc.) please ask /ohm/. >where can I find verified quality microcontrollers and other electronic sensors or parts digikey.com mouser.com arrow.com newark.com >but that's too expensive aliexpress.com (many parts here are fake, particularly specific parts out of stock in the above sites) lcsc.com >I need a part that does X and Y, with Z specifications. How can I find it? use DigiKey's or Octopart's parametric part search. Then purchase from one of the sellers listed above. >how do I get started with microcontrollers, where should I start? There is no defined starting point, grab a book and start reading or buy an arduino off ebay/amazon and start messing around. There are a plethora of examples online to get started. >resources: https://github.com/kitspace/awesome-electronics >RISC-V microcontroller list: https://codeberg.org/20-100/Awesome_RISC-V/raw/branch/master/RISC-V_MCU_development_boards.pdf⬆↩ 19

Idk. The fact that Arduino anything has become a standard is nothing but a hindrance. >bootloaders >using any programming interface that doesn't also allow for debugging >paying for programming hardware on each dev-board >UART printf debugging >dumbed down and non-performant programming abstractions >fuses being an afterthought And somehow they managed to release a dev-board with a socketed microcontroller, while having a native USB microcontroller on that same board explicitly to act as a programmer, while still requiring a bootloader on the socketed microcontroller. What the fuck?+ 1

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if youre so smart youd just be using 328p chips by yourself, chump >out of date headers what are you a jew or something? oh no how dare they maintain compatibility with the biggest and most common ecosystem this general would be more alive if you guys werent such shitposters+

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Is the CH32V003 still the top choice for a dirt cheap microcontroller, with decent hobbyist-tier support? People still say it's 10 cents, but I'm finding at least double the price in most places (for 2 to 3 digit quantities). I've seen passing mention of a few other chips in the years since but don't know if any have seen wide adoption.+

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Hey I’ve been googling my way through arduino projects this whole time anyhow. Now it’s just faster. I think there’s still a lot of room to use your discretion to write efficient code, minimising clock cycles and/or memory usage, where the AIs trained on pajeetcode need to be really coached into doing so. Max this out by going to assembly language, or just specialising in an obscure architecture or subdomain. Perhaps getting the most out of the Parallax Propellor, or learning a specific RTOS, or going for state machine bullshit. End-game is VDHL or whatever.+

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+ 16

Last Thread: Filament aged to perfection edition >Your print failed? Go to: www.simplify3d.com/support/print-quality-troubleshooting >Calibrate your printer. ellis3dp.com/Print-Tuning-Guide/teachingtechyt.github.io/calibration.html If that doesn't help you solve your problems, post: >A picture of the failed part >Printer make & model >Filament type/brand >Slicer & slicer settings >What printer should I buy? Do your own research, but if you gotta ask; just buy whatever Bambu fits your budget. DI…⬆↩ 24

Can anyone explain what went wrong with these prints? I made these supports for my box on the back of my motorbike and there's only one hole on the frame for me to mount this bracket to. The top basically just has the hole stretched and the bottom snapped across. Do I just need more wall layers? Not really sure how else to design this bracket, had printed them in PETG and lasted a few months before doing this on me.+

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I had the idea to use 3D printed files as moulds for plaster or clay slip. Like I wanted to make a Pot Of Greed mug out of clay or just a model out of plaster and then paint it but wasn't too sure how to go about it.+

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If you have no moneys: FreeCad, it's getting the Blender Treatment right now. Hadn't had it's 2.8 moment yet, but they're getting there. IF you have $175 to $300 that are burning a hole into your pocket: Plasticity (https://www.plasticity.xyz/buy) t. Freetard, pic rel. I'm the guy who impulse bought the Ender 5 Plus. I've figured out that I want a multi-tool/head printer and am thinking about a StealthChanger setup. My question: What hotend? Current contenders are Smart Orbiter 3.5v vs Galileo…+

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+ 21

questions that dont deserve a new thread a place for retards to converse thread theme: shitty fixes old thread >>3002637⬆↩ 21

I want to use this to spray condensed water from my mini split onto the condenser coil.+ 1

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>>3007680 To what end?+

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>swimming pool was resurfaced w/ aggregate finish >brush daily, add 3 ppm of chlorine, balance pH daily >T+5 weeks >looking a bit foggy, no visible algae tho >guess I'll go and shock it for good measure >add 25 ppm worth of chlorine at night >test it in the morning >0 ppm FC >okay I guess >add another 25 ppm >test in 2 hours >2 ppm >what the fug >add yet another 25 ppm worth >test again in 2 hours >22 ppm What is my swimming pool guzzling my chlorine like a whore? Phosphates? A phantom algae bl…+

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i just got a job working with a bunch of 20-25year olds and theyre all fucking slackers who avoid difficult/monotonous tasks that still need to get done and sit on their phone whenever management is not around. theres this very well mannered 80's style fratboy richboy trope who just does the rudest shit like volunteering others for shitwork. then theres one girl here who just shuts up and works. and then they also hired a very knowledgeable retiree age guy to work with us and he just talks and…+

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+ 18

guys should I get AMS2 or AMS to replace my OG AMS on an x1c? Also does the AMS2 chain with the AMS for 8 colors?+

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>6€ delivered even after the EU tried to fuck over chinese imports Binquilin! Long live the CCP! My life belongs to chairman Xi. Sure it's absolute dogshit quality, but since it's PLA it still prints just fine.+

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just got x2d as my first printer, i'm not up to date with all the drama around bambulab, is it safe to upgrade the firmware on it? (as in feature removal, downgrade prevention etc.). I'm on 01.00 and i'd keep it that way, but low power mode was only introduced in 01.01, i really need to put this thing behind UPS while not overloading it.+

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+ 5

Last Thread: >>3002649 Filament aged to perfection edition >Your print failed? Go to: www.simplify3d.com/support/print-quality-troubleshooting >Calibrate your printer. ellis3dp.com/Print-Tuning-Guide/teachingtechyt.github.io/calibration.html If that doesn't help you solve your problems, post: >A picture of the failed part >Printer make & model >Filament type/brand >Slicer & slicer settings >What printer should I buy? Do your own research, but if you gotta ask; just buy whatever Bambu fits your…⬆↩ 8

>>3011881 >there might be an ai rewrite already rewrite of what? Inventor? why would they do that? Everything I've heard from the handful of professional programmers I know seems to indicate that using ai generated code leads to nightmares later on+

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>>3008444 If you have no moneys: FreeCad, it's getting the Blender Treatment right now. Hadn't had it's 2.8 moment yet, but they're getting there. IF you have $175 to $300 that are burning a hole into your pocket: Plasticity (https://www.plasticity.xyz/buy) t. Freetard, pic rel. >>3008378 I'm the guy who impulse bought the Ender 5 Plus. I've figured out that I want a multi-tool/head printer and am thinking about a StealthChanger setup. My question: What hotend? Current contenders are Smart Orbi…+

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>>3008378 What's the reasonably best material type to print durable stuff? I'm talking about parts that go into building other printers, boxes for electronics that have to withstand weather, in and on cars, or just cosplay gear that can take a little beating without being outright protecting or riot gear. Just engineering stuff that is not aerospace and doesn't need PEEK, PEKK, PEI/Ultem or other insane filaments. ASA-CF? PA6-CF? PCTG?+

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+ 5

questions that dont deserve a new thread a place for retards to converse thread theme: silly projects old thread >>3007669⬆↩ 5

>>3011427 how come this sit has no Geritol section for all us old farts+ 1

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>>3011497 Why are you old?+

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>>3011427 I bought some rubberized plates for my home gym, and the problem is that they have this strong rubber smell (If you've been to a gym, you know it). Is there a way to get rid of that? I've tried scrubbing it with hot soapy water, and it kinda worked, but the smell came back after a day or so.+

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>>3011427 how difficult is it to chop through some steel square tube (50x50x1.5mm)? I tried to call a fab shop rather than buying something to cut metal with but the guy was so profoundly retarded that it's looking more worth to just do it myself than deal with someone who spends all day inhaling fumes I've worked with an angle grinder but I think due to how accurate I need to be here I might have to get a chop saw or something thereabouts is it completely necessary to go and buy more power too…+

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I'm still waiting for heated vacuum chambers.⬆↩

>>3011436 Make this place better. Make earnest replies and either ignore or mock retards. We can be the change we want to see.⬆↩

>but my father was and I inherited his old stuff Sure makes the costume look cooler, nice. >The hoody and its shadow over the mask look way creepier imo. For creep/scare factor you're definitely right, better to go that route. The less you show the better. Just hides a lot of your weathering etc.⬆↩

this week it is because im busy prototyping stuff, and in any case i really dont want to spend 200 hours babysitting something. ill probably buy him a bambu a1 or something for christmas so he can start learning and wont take up my sv08.⬆↩

>>3011692 what the hell would this be for? Do people really have that much of a problem with strangers hooking up to their loops? Just amazed there's enough of a market to justify a product like this.⬆↩

buy an ad, nigger.⬆↩

>image shows spool >image says dry prints >rage.jpeg⬆↩