Positron 3D printer unibody chassis HUGE UPDATE

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  • Опубликовано: 6 янв 2025

Комментарии • 105

  • @mariussiuram
    @mariussiuram 7 месяцев назад +35

    Sorry to nitpick, but you did not answer the question "Will you be releasing any cad for this?" I applaud you for releasing _something_ for free, but knowing whether the STL or the actual CAD are released and their license is quite important for the community. Whatever the answer is, I am HYPED for this UPDATE!

    • @lemontron
      @lemontron  7 месяцев назад +35

      Ah yes once again I leave out critical details. I should have said I will release the Fusion360 files. They will be under one of the various CC licenses, I haven’t debated which one yet though.

    • @mariussiuram
      @mariussiuram 7 месяцев назад +7

      @@lemontron That's awesome :D

  • @MxJuneReese
    @MxJuneReese 7 месяцев назад +16

    The filament idea is truly inspired

  • @GeekDetour
    @GeekDetour 7 месяцев назад +4

    5:15 the "guy" was @MihaiDesigns - but he was not the only one to point out the nasty variations of dual gear extruders. @MirageC also did that. Please, when you mention, provide links to the videos 🙂

    • @lemontron
      @lemontron  7 месяцев назад +2

      Wow dropped the ball...I put his video link in the description!

  • @RamBrosWorkshop
    @RamBrosWorkshop 2 месяца назад

    Nice updates. This is getting better and better

  • @AntoineGrondin
    @AntoineGrondin 7 месяцев назад +2

    Very cool, looking forward to having one of these. I think these portable printers will see huge uptake in the nomad-lifestyle market like cruisers and RVers. So many things can be jerry-rigged with a 3D printer and some dyneema, epoxy, fiberglass and carbon fiber.

  • @lial4633
    @lial4633 5 месяцев назад +2

    Looking forward to the CAD models! Can't wait to get building this machine, it's finally simple enough for me to give it a shot.

    • @lemontron
      @lemontron  4 месяца назад

      Assembly of the lemontron is going to be a satisfying experience. I think you might want to brush up on your crimping though, because it’s crimp city in there.

  • @orphax1925
    @orphax1925 7 месяцев назад +4

    just to correct something, dual gear extruders are great for bowden setups, the problem is for direct drive where the path is too short to smooth the little bit of backlash between the gears

    • @lemontron
      @lemontron  7 месяцев назад +1

      Yes, I should have mentioned that. Also gear size might be important too. As you go larger The modulus stays the same, but the teeth get closer together. (I think) So it would not be as big of a problem on any newish dual drive gears like hummingbird. Anyways my point was not to condemn dual drive concepts, just that they’re not ideal from a perfectionist standpoint.

    • @orphax1925
      @orphax1925 7 месяцев назад

      @@lemontron also part of the problem seems to be unrelated to gears and related to the center misalignment of two components, there's a video from MirageC on it with a simple fix using a part made from a single piece of metal

  • @lunaumbra5179
    @lunaumbra5179 7 месяцев назад +2

    I'm wicked impressed. I'm waiting on the ldo kit to see if it's worth it, but i feel like as soon as i pick one version of the positron someone is gonna blow all the others out of the water.
    I love in a van and need the smallest, most compact, low power printer i can get. The filament dry box underneath is the perfect idea. I can't wait to see what you come up with.

  • @bce.gatien
    @bce.gatien 7 месяцев назад +4

    James, I'm happy to subscribe to your channel. This is an impressive design. I have a suggestion to add to your design. If you add locating pins and locating slots to ease the assembly. Those features will slightly decrease the BOM and can increase the rigidity of the design. The 2 mid plates can have slots and grooves where they interface with the base plate; basically making them lego block before screwing them. Those slot and grooves will take care of the lateral forces, letting the screw with just the clamping forces. The power supply could have 2 locating pins, leaving just 2 screws. You can see the same design in computer case with motherboards. Again, more locating slot for the 2 top plates. Keep up the good work !

    • @lemontron
      @lemontron  7 месяцев назад +8

      Love it- next prototype will definitely lean into using more locating pins, and other features that make the parts self align.

  • @muybenno5557
    @muybenno5557 5 месяцев назад

    Love this build! Would also be very interested in a V3.2 version (when self sourcing kits will be available. With the new build plate, Z-stage, and Pi Screen case etc.)

  • @peroting.6545
    @peroting.6545 7 месяцев назад +1

    Amazing, I really appreciate such a well thought out design. Very interested how the finished product will look like and perform!

  • @lunaumbra5179
    @lunaumbra5179 6 месяцев назад

    Back again. I'm itching to get my hands on a Positron and your unibody + extruder + drybox concept are so inspiring. I am so eager for the next video.

    • @lemontron
      @lemontron  6 месяцев назад +2

      Updates coming, I’ve made huge progress!

  • @Diabl0pl
    @Diabl0pl 7 месяцев назад +1

    Wow, this looks amazing! I never wanted a positron, but after seeing your work I want one, now. Can't wait to see how this project develops. Subscribed and waiting for more!

  • @punkreeperful
    @punkreeperful 7 месяцев назад +1

    Side spinning spool holder at the bottom of the positron, maybe guide the filament using an anchored PTFE tube

  • @segment932
    @segment932 7 месяцев назад +5

    This is amazing. Hope I can afford to build a Lemontron printer in the future.

    • @lemontron
      @lemontron  7 месяцев назад +12

      I’ll get the cost down and meet you half way 🤝

  • @B_M_A
    @B_M_A 5 месяцев назад

    Believe I saw you in someones video at a booth at some convention, or potentially someone you may work with. This thing is very cool. The filament holder / drybox is pretty genius for this as well. Wish you the best.

  • @Jdog1681
    @Jdog1681 4 месяца назад +1

    Looking forward to an update on this! Hopefully soon?

    • @lemontron
      @lemontron  4 месяца назад +2

      I’ve been working on it every day! Very soon!

  • @Apolluna
    @Apolluna 7 месяцев назад +3

    This is awesome! Look forward to building one!

  • @randomaccessbrains
    @randomaccessbrains 7 месяцев назад +6

    Seems really promising! Small remark though, the music is quite loud and I sometimes had a hard time understanding you because of it

    • @lemontron
      @lemontron  7 месяцев назад +2

      Thanks, I will take that advice for future vids 👍

  • @evolutionh2ogaming600
    @evolutionh2ogaming600 5 месяцев назад

    This is awesome, I have an old ender 3 pro that is just giving me problems and dont necessarily want to buy a new one or can afford to, I was looking at building the JM at some point but its quite pricey, very glad too see the lemontron being more affordable so early into its development. Keep up the great work

    • @lemontron
      @lemontron  5 месяцев назад

      Absolutely, I’m aiming to make a highly capable printer that’s an upgrade over all the various bed slingers. I’ll be sure to reduce the cost further. I have some awesome new developments I’m excited to share in the next video.

    • @herpderpson4712
      @herpderpson4712 4 месяца назад

      If you want to get some more mileage out of your ender 3 pro, i would suggest checkin out the Ender 3 NG - coreXY on printables ;)

  • @abowden556
    @abowden556 7 месяцев назад +6

    One wonders how much better and cheaper this design can get. knocking 100 bucks off the BOM is a hell of an achievement already. I think being such a compact design, it should inherently use less material, be cheaper to ship etc, in theory this should drive down production costs if someone ever makes a version for mass production.

  • @sorenstorm
    @sorenstorm 7 месяцев назад +3

    Very nice video production quality!

  • @paulshin7130
    @paulshin7130 2 месяца назад

    Hi this is Paul!! Great info for printer

  • @lajoyalobos2009
    @lajoyalobos2009 6 месяцев назад

    Definitely will be looking out for this one! I'd like to build a positron but also cut out a lot of the unnecessary parts and costs if possible.

    • @lemontron
      @lemontron  6 месяцев назад

      Nice already got it down to $500 believe it or not

  • @iriverey
    @iriverey 5 месяцев назад

    Wow, this is insane, can't wait to see the next video! Cost reduction is super cool as it did feel a bit expensive for its size & build volume (although portability makes it worth it I guess).
    A few questions:
    - With the removal of the bottom aluminium plate, is it as stable as the original? I guess moving the motor down into the base should help with the centre of gravity though, so I guess it's fine?
    - Is it possible to somehow increase the max temperature of the print bed, to help with printing ABS? As it's a portable printer, it would be great to have an option to print ABS on the go (make a temp enclosure out of like a cardboard box or something and print).

    • @iriverey
      @iriverey 5 месяцев назад

      Also - LEDs on the original Positron are kinda cool, hope you bring em back!

    • @lemontron
      @lemontron  5 месяцев назад +1

      It’s true that smaller should mean cheaper, and I am proving that in the next video. The cost reduction continues every day. Your concern about the stability is unfounded, the base is HEAVY and the positron was never a top heavy design to start off. For ABS, we’ll need a new source of heat bed because the existing positron beds from voxolite cap out around 80C which is plenty hot for most things but printing ABS is very much a goal and anything we need to do to get there is something I am willing to work on, but I won’t be persuing it for a long time because the voxolite heat beds are so good.

  • @hunt0583
    @hunt0583 7 месяцев назад

    Why not turn the filament box into a spool holder during printing?

  • @radishdalek
    @radishdalek 5 месяцев назад

    Looking forward to this printer

  • @iriverey
    @iriverey 5 месяцев назад

    Also a small idea - would it be possible to make the z-idler pully use a screw with a knob so that the whole printer could be unfolded without using any tools? Cause as far as I can see it's the only part that requires an allen key during folding/unfolding

    • @lemontron
      @lemontron  5 месяцев назад +1

      In a future video I’m going to have the whole z-axis rotate to unfold and the belt will ring onto the pulley as it is unfolded. Very nice but for now yes, you can absolutely slap a thumbscrew on the idler pulley. If I have time I will include the thumbscrew in the next video.

  • @Litl_Skitl
    @Litl_Skitl 7 месяцев назад

    Alright first of all this project is awesome!
    Second of all, how about two ideas:
    1. Could you maybe reconfigure the extruder idler, so that you can adjust the tension with a socket screw and an alan key? Might be more ergonomic from first thought.
    2. Something about a smart cooling solution but I forgot what it was... (oh yeah, if you could use the steppers/belts to drive a passive cooling solution, but that might be stupid)

    • @lemontron
      @lemontron  7 месяцев назад +2

      1. Well with the thumb screw obviously you can adjust tension with your thumbs, and it works, but I do see an advantage for the screw idea- it might be lower profile, something to look into. Need to continue to miniaturize each component. 2. Creative, but however it would be done, it sounds like it would need extra gearing to make a fan actually move air.

  • @mirkoromualdi5666
    @mirkoromualdi5666 2 месяца назад

    Hi James first of all congratulations for what you do.
    Is the Lemontron project still ongoing?
    Has there been any news since this video?
    Will you be releasing new videos?
    I would like to start construction but I don't want to have to stop halfway

    • @lemontron
      @lemontron  2 месяца назад

      Progress continues every day 😎 I just dropped a short a few minutes ago revealing it printing. A new video is coming very soon!

  • @lunaumbra5179
    @lunaumbra5179 3 месяца назад

    Back again to show interest and cheer you on! I live in a van and want a positron but can't justify some of its poor choices. I think you are on the right path, although I don't feel like you answered the ridgity question well enough.
    With your different design, will it fit in a filament box without the PTFE tube being annoying?, if not, is it possible to add a quick disconnect at the tool head to assist with this?
    Also I do not want the internal powersupply, unless I can use an external powersupply with a clean bypass. I want to 12 > 24v convert in the van, then use 110 > 24v in house. I am debating dropping my other life goals and projects to get the best positron I can, which might mean modifying a few things myself. Anywho.
    Keep at it! Reach out to subs if you need help or encouragement

    • @lemontron
      @lemontron  3 месяца назад +1

      Progress continues every day! And thank you for becoming a patron, Luna. How this printer can be used in van life has been on my mind since day one. In fact your idea for 24V input is something I've had in my mind since the beginning, so the final version will have a connector for direct 24V input. The design already allows for the bowden tube and electrical cable to bend without disconnecting them when storing it in a filament box, and the bend is pretty gentle too. You also might be concerned with rigidity but the base is rock solid and not even my PLA prototypes are warping. Should the connector be XT connector? Barrel jack?

    • @lunaumbra5179
      @lunaumbra5179 3 месяца назад

      @@lemontron This is so exciting to read! Thank you so much for the reply. I am so impressed. The website you made is also shaping up nicely.
      I like XT connectors more because of their tighter fit and easier to DIY, and I always struggle when trying to source good barrel connectors for my projects, the right size and quality... But barrels are smaller, and more common, and maybe there are more power supplies out there you can simply purchase. An XT connector almost guarantees a DIY effort to use, but is that bad?
      I heard some people on discord talking about how they don't like the internal power supply. No shielding, and maybe it doesn't have the same protections as the LDO kit one does, so if you use the same connector as the LDO brick, anyone could buy it or another 110 > 24 brick and not purchase the internal supply at all.
      So as much as I don't love barrels it probably gives the most flexibility. Unless you build 2 versions of the base plate and let people choose.

  • @j0shij17
    @j0shij17 7 месяцев назад

    What would be nice since it's a "Portable" Print is to either add a Battery, or to power it through USB-C PD so you can use wall socket or power pack. Otherwise, very cool little project!

    • @lemontron
      @lemontron  7 месяцев назад

      I’m actually looking into it! It would charge off usb-c and for extended print times you’d need to keep it plugged in.

  • @jupiterbjy
    @jupiterbjy 7 месяцев назад +1

    This is sick, I love it.

  • @Matthew_Stevenson
    @Matthew_Stevenson 7 месяцев назад +2

    What is the print quality like? having a small compact printer is one thing, but having a good printer that can produce quality parts is another. Either way, Love the design man!

  • @yakuzabanzai
    @yakuzabanzai 7 месяцев назад

    Amazing job!!!! I´ll keep up your progress!

  • @vocalitypog2316
    @vocalitypog2316 6 месяцев назад

    I have long wondered why so many 3d printed projects use screws instead of lego technic pins. The ease of assembly/disassembly and affordability seem obvious to me. Or, if those pins are inconvenient (for whatever reason), using a pattern of studs and anti-studs to connect the pieces of the frame could be more than strong enough for the forces expected. Obviously not all components can be modified this way, but the: baseplate, mid plates, and top plates should be able to use this idea.

  • @NuggetsInclusive
    @NuggetsInclusive 7 месяцев назад

    lets see itprin and the box thing in action. i would liek to see

  • @RoketGames
    @RoketGames 7 месяцев назад

    Great video! I love the idea of positron! Keep up the good work!

  • @horou6721
    @horou6721 7 месяцев назад

    This design is just awesome, just an idea (useful or not), Is it possible to move the fan from the toolhead to the baseplate and use an air hose to push the air to the toolhead? This will reduce the weight of it and allow faster print.

    • @lemontron
      @lemontron  7 месяцев назад +1

      Thanks, it’s actually a good idea and been accomplished in the berd-air system or “turbo” systems people use to speed print. I don’t think it’s desirable for the positron printer because although it makes the tool head smaller, on the whole it takes up more space, which is not in support of making the most compact printer possible.

  • @matthewgully8331
    @matthewgully8331 7 месяцев назад +2

    Nice! 😎
    But does this guy have another channel? Such good video production with just 3 shirts and 2 videos?
    Or had there been videos deleted?

    • @lemontron
      @lemontron  7 месяцев назад

      I just watch a lot of RUclips so I knew what I had to do. My previous work included 4 house cleaning TikToks and a failed attempt to become a tech RUclipsr (Channel name James Loper)

  • @georgeedmonds627
    @georgeedmonds627 7 месяцев назад +1

    Would be AWESOME to have the bottom plate CNC machined out of aluminium. Heat syncs for the motors could be integrated... Probably cost prohibitive though

    • @DiThi
      @DiThi 7 месяцев назад +2

      A possible idea to improve upon this is to have channels to put strips of aluminium which are readily available at the hardware store. Just cut to size.
      Maybe even just aluminum tape may work.

    • @klausbrinck2137
      @klausbrinck2137 7 месяцев назад

      Cast is from Zamac instead.

  • @AtomicBleach
    @AtomicBleach 7 месяцев назад

    Just needs a little origami enclosed box that fits in the travel case and I can have a nice packable printer for printing any spare abs parts in my little camper. lol!

    • @lemontron
      @lemontron  7 месяцев назад

      Positron 3D is working on that very idea and you can follow their progress on discord 😎 Lemontron will have its own version too.

  • @benads6847
    @benads6847 7 месяцев назад +1

    would you consider hollowing out the chassis and filling it with cement mixture? that would decrease vibration and add some damping , your downside however would be increasing the weight, cement for me is like 4.99 for 25kg

    • @lemontron
      @lemontron  7 месяцев назад

      You are a genius, I have got to try that! It would be stiffer than any 3D printer out there!!! Thanks for the idea, I’ll definitely put some reference to this idea in the next vid! Would you recommend a certain mixture?

    • @benads6847
      @benads6847 7 месяцев назад

      @lemontron when working with cement no particular mixture, the overall heft of it will add stiffness, so a normal mix of just cement and water would work fine, if you wanted to have a higher dampening effect with a slightly more expensive alternative material I'd say go for "epoxy granite" which is a mix of 80% sand to 20% epoxy this is regularly used in damping vibration on high precision cnc machines

    • @klausbrinck2137
      @klausbrinck2137 7 месяцев назад +1

      or cast the base-plate out of Zamac, it´s easy to cast...

  • @nhchiu
    @nhchiu 7 месяцев назад

    Do you bother to put a link or at least say who "that guy" is that tracked down the dual drive gear issue?
    Given that you even included a clip from his video at 5:17.

    • @lemontron
      @lemontron  7 месяцев назад

      Wow dropped the ball, I’ll put his channel link in the description 😅

  • @artemyevtushenko8722
    @artemyevtushenko8722 7 месяцев назад

    That “nice” has massive DIYPerks energy. Nice.

    • @lemontron
      @lemontron  7 месяцев назад

      Love it. DIYPerks rules.

  • @herpderpson4712
    @herpderpson4712 7 месяцев назад

    Dude, i love this design!! I've been following the devepolment of the Positron 3D-printers for a while now but IMO this takes the cake! Really awesome job! 2 things im wondering about: 1. What motor ist the extruder? It looks different from the nema17s and i have found it in your BOM or the journeymakers BOM. 2. Why the LOP-300-27? Is 27V safe for the motors and everything else? in the video (and the journeymaker BOM) the EPP-200-24 is used. Why the change? (I know the BOM is preliminary but stuff like this get's me excited :D )

    • @lemontron
      @lemontron  7 месяцев назад +2

      The positron project is definitely heating up. Great questions: 1. Extruder motor is NEMA17. It's different because it's just from another supplier. Don't worry about that, you can just use 4 of the same motors. 2. Actually all the parts are happy to take the over voltage of 27v. In fact there's a little potentiometer on the EPP-200-24 that you can turn to crank it to 27v and some members of Voxolite have done it, it helps heat the bed quicker. The LOP-300-27 has an identical footprint but has 300 watts, very useful for the dry box I mentioned in the video, and has a lower z-height which is important for something I have not mentioned anywhere else, I have actually started slimming the base further, I think I can shave an additional 7mm.

    • @herpderpson4712
      @herpderpson4712 7 месяцев назад

      @@lemontron Very nice! Thank you! Can't wait for the beta release video :)

  • @karthikm878
    @karthikm878 7 месяцев назад

    It looks osum cant wait for the release

  • @nueschtsNutzername
    @nueschtsNutzername Месяц назад

    Awesome!!

  • @tusharkhupsare5330
    @tusharkhupsare5330 5 месяцев назад

    Hello ,
    I love the design i had eye on it from qute a time but as i am new to any of this things i get lost and frustrated
    I don't understand github,discord and other like it
    As for i am new to
    If anyone can help to navigate to how to do it and suggestions tutorials for it i will be very happy to be
    Thank you

    • @lemontron
      @lemontron  5 месяцев назад

      No worries, you won’t need GitHub or discord. You’ll be able to download it, view a BOM, and follow a build video.

  • @Sugar3Glider
    @Sugar3Glider 7 месяцев назад

    Be sure to state full names of your sources, goes a lot in building community

    • @lemontron
      @lemontron  7 месяцев назад

      MihaiDesigns, link in description

  • @Schwift3D
    @Schwift3D 7 месяцев назад +1

    Design prototype test recommended your channel so I dropped a sub, he introduced me to proper printings channel in the past so I'm confident you're worth checking out 🙂

    • @lemontron
      @lemontron  7 месяцев назад

      That’s sick, I love his videos!!!

  • @galangel8287
    @galangel8287 7 месяцев назад

    looks good

  • @KaliKavala
    @KaliKavala 7 месяцев назад +1

    I love the idea of positron before it even was out. Then again 600$ is preeeetyyy expensive imo. Hope with new version (as this one) would become better and more affordable.

  • @LastZion
    @LastZion 7 месяцев назад

    liked and subcribed!!!

  • @MrBaskins2010
    @MrBaskins2010 7 месяцев назад

    woah

  • @klausbrinck2137
    @klausbrinck2137 7 месяцев назад

    cast the base-plate out of Zamac, it´s easy to cast...

    • @lemontron
      @lemontron  7 месяцев назад

      I probably will, tbh, but I need it to be easily 3d printable at home

    • @klausbrinck2137
      @klausbrinck2137 7 месяцев назад

      @@lemontron Someone suggested to you, to fill the hollowed base with cement, that´s why I said that. Cement wouldn´t have a way to vent its water-content, so, this idea may not work... But if u 3d-print the case in vase-mode with resin, put it in plaster and burn out the resin, then pur Zamak in the mould, you also get a heavy base. It´s 2 additional steps, compared to the single additional step with cement-puring, but may circumnavigate the cement-hardening -issue (if any even exists).

  • @kubburdigital
    @kubburdigital 6 месяцев назад

    nice

    • @lemontron
      @lemontron  6 месяцев назад

      niiiiiice

    • @kubburdigital
      @kubburdigital 6 месяцев назад

      @@lemontron this could make a super nice on the go printer, any thoughts on enclosing it? Like, some kind of a bag for it that can transform into an enclosure

    • @lemontron
      @lemontron  6 месяцев назад +1

      Yes sir there is a thread on that at positron 3d discord. Lemontron will be able to use it or have its own but to really make use of it first the community is going to have to come out with an all metal hotend to heat higher than 250C. That could be a ways off, I’m not sure. Someone has designed one already and it’s pretty well optimized for machinability but I’m not sure the progress of it.

  • @McFlyOrPie
    @McFlyOrPie 7 месяцев назад

    6:31 🤯

  • @yakine13
    @yakine13 5 месяцев назад

    very cool, goodluck! I'll go easier on the lighting, it's too flashy. a simple cool light is better than a rainbow of colors

    • @lemontron
      @lemontron  5 месяцев назад

      Next video will have improved lighting!

  • @johncordingley6750
    @johncordingley6750 2 месяца назад

    I have no idea why anyone would think extruding upward would be an awesome idea FDM printers already have enough factors and problems to overcome with the extrusion the normal way now add the complication of extruding and defying gravity, most idiotic idea I have ever heard.

    • @lemontron
      @lemontron  2 месяца назад

      Factors overcome a pretty long time ago. If you have a more modern printer you’d know, printing has come a long way. Its like 10 times faster now, ABS is simple now…Extruders already defy gravity, very reliably, in the case of overhangs. If looks stupid but it works it aint stupid.