Homies don’t let their homies use soldered wires in screw terminals. Solder drifts and could be a fire hazard. Pla also drifts over time so you’ll need to constantly re-tighten all your bolts. It’s likely that any pla part under constant strain like the idler mounts and gantry mounts will shift/warp
Yup will keep an eye out. This and general warpage were brought to my attention back when I began. I do have one prototype (the one in the last video) that had been printing for a month, and it held up very well with no drift. I noticed some flex at the last minute so I fixed that with the new reinforced z block design so I’m on top of it. I suspect because it’s so THICC what little forces are acting on it just don’t contribute to much drift and all the pulleys are screwed in tight and have a washer to sit on which spreads the load many THOUSANDS of times over just having a screw post cantilever like in the journeymaker design. Time will tell.
Fyi, the term for material slowly moving under load is creep. You might also be less affected by it since it is a function of temperature and the positron isn't enclosed.@@lemontron
@@TheGiuse45 Incorrect, it does, under pressure it very slowly 'flows' and deforms, shifting away from the compression forces, the connections becomes looser and higher resistance, starts to heat up, the solder oxidizes and flows away even more, then fire/melting/charring from the wire insulation.
I've been following the Positron project since it was first announced and have always wanted to build or buy one, but I definitely had to wait for you to finish the Lemontron before throwing money at anything. This is sublime!
To people doing DIY, buy ferrules, they cost 1$ on Ali for a set of them. Soldering the wires has caused many fires by them coming loose, don't cheap out!
Looks like a very well thought out design. The tinned wires in a screw terminals is a big no no, especially on power wiring. I'm also not fond of using a screw gun without going back and hand torqueing. Cool printer but having 3 printers with this build volume already I can't justify building one....yet.
Best build video I've ever watched. Excellent effort!!! I am so jazzed this came out and I cannot wait to snatch up that toolhead pcb and get cranking on the DC input mod. Thank you so much for making my vanlife printing dream feel attainable. Have an excellent end of year Mr. Lemon 💕
I understand where you’re coming from but you would never want to put a tool in any BOM unless it was a consumable. But yes I do have a list of required tools in the website and crimps ($20) are almost non negotiable, though if you were really for some weird reason opposed you could always work around it.
Congrats. So what keeps the Bowden tube from hooking on the x-rail? Seems unsolved for any Positron design right now, maybe with the exception of the 3.0, which had a support.
The limitation is that if you go any bigger, it won't fit in a filament box, and that was kind of the whole point, for coolness factor, and bragging rights.
Having bearings on the both side of the Z axis is how you speedrun Z-wobble. Crazy how nobody in this entire world knows how to design a functional 3d printer, bambu and voron included
You do tighten the nozzle hot, but the cold side doesn’t thermally expand to the point where it affects leaks. Yep issues with serviceability are definitely there, specifically when you need to replace the heater or clean the hotend. I really just made some calls in the name of miniaturization, it’s all calculated for cost/benefit but it’s nothing a little more RnD can’t fix. Sample Name actually linked me a SMD finger that allows the heater to be installed toollessly.
Is there a reason for going with screws that go into plastic, as opposed to just using more heatsets? Screws that go into plastic is almost a one-and-done type of deal and are extremely easy to strip out. The base is such a large print that it would suck to have to re-print the whole thing because one or two important holes stripped out. Such as those for the rails. Also, the kapton tape used later to hold down the wires, perhaps one addition here could be U-shaped channels that will accept those really small 2.5mm cable ties? Aside from that, fantastic work! Really looks like you one-upped all the other Positron variants and made one that's actually viable for most people to make! If I didn't already have a full kit and all parts printed for a Micron+, I would build this instead.
I am curious about why not more heat set as well. I'm happy to load it up.. Looking at the files there might be a couple places, or maybe one in the center of the y rail, which might not take a heatset well.
I thought this had become a commercial project, a bit larger with custom bed etc. Did I misunderstand? Anyway, loved the video (except gluing the Capricorn tube, maybe?)
Lemontron is the newest positron style printer and it shares many design decisions. Same print volume, but half the price, internal extruder as opposed to external, unibody chassis as opposed to plate construction, 0 cnc parts as opposed to heavy use of cnc parts, it has a bed mesh probe, and internal psu as opposed to external brick. I hope it proves to be a big innovation over the previous positrons.
From a durability and DFM standpoint fhcs shouldn't be used in 3d prints for anything other than cosmetic purposes, the outward tension can result it build up of stress and failure at the z seam for the hole.... most parts can often be switched to a countersunk bhcs
This is an interesting issue. I did not know you could get countersunk button heads.. would there be any good reason for keeping the countersink if you are switching to a button?
Dude I never watch ads and always jump ahead for sponsors but you were halfway through it before I even realized it was a plug so impressed I didn't skip forward. Well done sir.
* portability - it goes anywhere and you don't have to fuss with someone else's printer. * Small living, tiny house, van life (that's me) , RV life, tiny city apartment * Remote work. The rare few where printing on the job anywhere could speed things up a lot. * It's badass * Bring the printer to your friend and fix their tool/issue with them instead of the back and forth, so long as it's a short print.
* Portability - an A1 mini is pretty small, if you aren't concerned with packing it up, and putting it in a backpack, you're fine. You'll also have reliable prints at a higher quality. Small living, same reason, and no need to spend a couple of days assembling it yourself, more likely than not forgetting, damaging, or misplacing something. If you love building stuff, go for it, otherwise don't do it.
@@ljadf I think you are missing the point. I literally do not have room for an A1 mini. You do not understand what small living really means. A1 Mini: 347 x 315 x 365 mm³ Lemon: 200 x 200 x 73 mm³ with the same build volume Are you making claims about the quality or reliability of this printer? Sounds like you are a consumer and not a maker *shrugs*
@@lunaumbra5179 the current bed is at a cantilever, and adding additional weight to it will cause the joints to eventually bow further than what is acceptable. Scaling up to just 256 and above requires and additional Z Rail at the minimum, which inherently changes the entire core design of the machine. It's a fun problem we're currently working on :)
I don't think I'll build a Lemontron but I subscribed because you did such a good job on the design and video, sound effects and all. ;o) Keep up the good work.
*what if i just... 🤔 🤔 okay okay, hear me out, what if i just turn my Bambu Lab printer upside down...*, but i really like this wonderful manifestation of yours
Probably. I haven't paid close attention to the mounting though, and protoboard with jumper wires would probably be thicker than the PCB. That could be an issue.
In my experience, thermal paste is inappropriate in such places. The temperature is too high and the thermal paste dries quickly and stops working (starts to harm).
Sheesh! Just recovering from constant prntrprn-boner watching this. Must have taken a looot of time to make the video and the design. I like your humour - must be the same kind of ADHD I have. Can u tell us what the beautiful glitter filaments are? The purple and the dark with blue glitter are just gorgeous in macro.
It's not a gimmick for some. For me it's the only viable printer option given my lifestyle. I'm tired of using other people's printers and makerspace printers. It's always a mystery if they are in good condition or their quirks. Plz hate it harder. I think it likes it.
![Noob To Max With DRAGON REWORK In Blox Fruits [FULL MOVIE]](http://i.ytimg.com/vi/LnBMOinoOvA/mqdefault.jpg)
Homies don’t let their homies use soldered wires in screw terminals. Solder drifts and could be a fire hazard. Pla also drifts over time so you’ll need to constantly re-tighten all your bolts. It’s likely that any pla part under constant strain like the idler mounts and gantry mounts will shift/warp
Yup will keep an eye out. This and general warpage were brought to my attention back when I began. I do have one prototype (the one in the last video) that had been printing for a month, and it held up very well with no drift. I noticed some flex at the last minute so I fixed that with the new reinforced z block design so I’m on top of it. I suspect because it’s so THICC what little forces are acting on it just don’t contribute to much drift and all the pulleys are screwed in tight and have a washer to sit on which spreads the load many THOUSANDS of times over just having a screw post cantilever like in the journeymaker design. Time will tell.
Please avoid using solder on screw terminal wires. This has caused problems with the Ender 3 in the past, leading to burnt terminals for many users.
Fyi, the term for material slowly moving under load is creep. You might also be less affected by it since it is a function of temperature and the positron isn't enclosed.@@lemontron
Solder doesn't drift
@@TheGiuse45 Incorrect, it does, under pressure it very slowly 'flows' and deforms, shifting away from the compression forces, the connections becomes looser and higher resistance, starts to heat up, the solder oxidizes and flows away even more, then fire/melting/charring from the wire insulation.
I've been following the Positron project since it was first announced and have always wanted to build or buy one, but I definitely had to wait for you to finish the Lemontron before throwing money at anything. This is sublime!
Haha, orange ya glad you didn't just build the positron?
To people doing DIY, buy ferrules, they cost 1$ on Ali for a set of them. Soldering the wires has caused many fires by them coming loose, don't cheap out!
If only the multiple crimping tools needed didn't cost so much
@@hasso0nthose are also quite cheap and they are certainly not a single use item
Looks like a very well thought out design. The tinned wires in a screw terminals is a big no no, especially on power wiring. I'm also not fond of using a screw gun without going back and hand torqueing. Cool printer but having 3 printers with this build volume already I can't justify building one....yet.
But what about bringing a printer to remote satanic rituals in the woods at 2am?? Which printer will you bring for those events?
What's a better way to do that wiring?
ferrules. Always ferrules. Even raw wire is "safer" than tinned wires into terminals.
subscribed for the cartoonish sound effects alone. Awesome vid!
The sound effects are perfect
I love the little noises you make when applying solder, etc
Watching this has inspired me to consider making a mini Lemontron, maybe a kumquat-tron
I love the sound effects, it’s very dad coded
I’ll design and build a new printer every year or two for fun and this video just makes me want to do better. Nice work!
Best build video I've ever watched. Excellent effort!!!
I am so jazzed this came out and I cannot wait to snatch up that toolhead pcb and get cranking on the DC input mod. Thank you so much for making my vanlife printing dream feel attainable. Have an excellent end of year Mr. Lemon 💕
Dude, This is awesome!
I really hope that the bill of materials includes tools and crimps
I understand where you’re coming from but you would never want to put a tool in any BOM unless it was a consumable. But yes I do have a list of required tools in the website and crimps ($20) are almost non negotiable, though if you were really for some weird reason opposed you could always work around it.
I've been looking forward to this video!! Thanks for taking the time to document your hard work in such an accessible way for so many people.
Nice video. As mentioned, tinned ends bad. This is why we use ferrules on the positron.
Congrats. So what keeps the Bowden tube from hooking on the x-rail? Seems unsolved for any Positron design right now, maybe with the exception of the 3.0, which had a support.
The sound effects are choice! Very cool build!
I’ve wanted a positron ever since it first hit the scene. This variant looks like the most approachable build yet.
Yes indeedy with all the improvements over the original plus the price tag that’s been cut in half now is the time to build a positron!
The sound effects are top notch.
LMAO for real! I loved it. Bro is actually pretty funny. Plus the video is great as well.
Good job on the printer and the video (even the ad was good).
Ok, that is amazing. I think that as soon as I finish my Pandora's Box I'll try to give it a try if i manage to get qll the parts where I live.
Amazing printer. But maintenance on this thing is almost non existing, you need to desolder things to replace parts? Or i missed something?
Don’t worry, I know what you are talking about and Sample Name and I are working on a toolless maintenance PCB and we need time to make it amazing.
@@lemontron I am just curious, how difficult would be to use existing builds, like hotend from a1 bambu lab with fast hotend swaps.
Good stuff! Looks like a decent print result as well.
Yeah believe me the quality is up there. Admittedly there are vfas to address but by all other measures it’s super performant.
@lemontron Nice! I mean clearly this is a compromise printer focused on cost, size, and portability. So good print quality by any measure is great.
This is absolutely fantastic!
What are the limitations in scaling the print build volume?
The limitation is that if you go any bigger, it won't fit in a filament box, and that was kind of the whole point, for coolness factor, and bragging rights.
Having bearings on the both side of the Z axis is how you speedrun Z-wobble. Crazy how nobody in this entire world knows how to design a functional 3d printer, bambu and voron included
Amazing, whats this nice ABS you used for the toolhead? Thats one of the prettiest filaments I ever saw.
I seems like ages since I seen this for the first time.
Happy that it’s finally coming out 😊
this is some pretty good work. serviceability suffers a little though. shouldn't you be tightening the hotend jibblies while it's hot though?
You do tighten the nozzle hot, but the cold side doesn’t thermally expand to the point where it affects leaks. Yep issues with serviceability are definitely there, specifically when you need to replace the heater or clean the hotend. I really just made some calls in the name of miniaturization, it’s all calculated for cost/benefit but it’s nothing a little more RnD can’t fix. Sample Name actually linked me a SMD finger that allows the heater to be installed toollessly.
Nice soldering bro!
Great design! very cool! That hotend is nuts!
That sound’s 😂😂 you don’t loose my attention 👌❤️
whats the estimate cost to build this? hardware-wise i mean not printed parts
damn son, this has more flat head screws than i skipped over in the voron v0.2 build
You can use the same size button head but since you have to buy the wafers anyway for the x axis I just reused the same screw over and over again
the sounds effects man!!!
Okay I'm sorry but 5:35 vibes _way_ too hard 🔥🔥💯 Goddamn
Is there a reason for going with screws that go into plastic, as opposed to just using more heatsets? Screws that go into plastic is almost a one-and-done type of deal and are extremely easy to strip out. The base is such a large print that it would suck to have to re-print the whole thing because one or two important holes stripped out. Such as those for the rails. Also, the kapton tape used later to hold down the wires, perhaps one addition here could be U-shaped channels that will accept those really small 2.5mm cable ties?
Aside from that, fantastic work! Really looks like you one-upped all the other Positron variants and made one that's actually viable for most people to make! If I didn't already have a full kit and all parts printed for a Micron+, I would build this instead.
I am curious about why not more heat set as well. I'm happy to load it up..
Looking at the files there might be a couple places, or maybe one in the center of the y rail, which might not take a heatset well.
I thought this had become a commercial project, a bit larger with custom bed etc. Did I misunderstand?
Anyway, loved the video (except gluing the Capricorn tube, maybe?)
LDO made a kit. It costs 700usd.
And yes the Lermontron uses the custom bed and hot end LDO made for their kit
5:32 that little rap was fire xD
Is this based on the positron?
Lemontron is the newest positron style printer and it shares many design decisions. Same print volume, but half the price, internal extruder as opposed to external, unibody chassis as opposed to plate construction, 0 cnc parts as opposed to heavy use of cnc parts, it has a bed mesh probe, and internal psu as opposed to external brick. I hope it proves to be a big innovation over the previous positrons.
@@lemontron so it's basically modded positron for DIY construction? pretty neat!
From a durability and DFM standpoint fhcs shouldn't be used in 3d prints for anything other than cosmetic purposes, the outward tension can result it build up of stress and failure at the z seam for the hole.... most parts can often be switched to a countersunk bhcs
This is an interesting issue. I did not know you could get countersunk button heads.. would there be any good reason for keeping the countersink if you are switching to a button?
Dude I never watch ads and always jump ahead for sponsors but you were halfway through it before I even realized it was a plug so impressed I didn't skip forward. Well done sir.
SUBBED! You got me with the metric sized 'subscribe buttons'. Good humor and I like the content so far.
Why would one build this versus getting an a1 or a1 mini
* portability - it goes anywhere and you don't have to fuss with someone else's printer.
* Small living, tiny house, van life (that's me) , RV life, tiny city apartment
* Remote work. The rare few where printing on the job anywhere could speed things up a lot.
* It's badass
* Bring the printer to your friend and fix their tool/issue with them instead of the back and forth, so long as it's a short print.
* Portability - an A1 mini is pretty small, if you aren't concerned with packing it up, and putting it in a backpack, you're fine. You'll also have reliable prints at a higher quality. Small living, same reason, and no need to spend a couple of days assembling it yourself, more likely than not forgetting, damaging, or misplacing something. If you love building stuff, go for it, otherwise don't do it.
@@ljadf I think you are missing the point. I literally do not have room for an A1 mini. You do not understand what small living really means.
A1 Mini: 347 x 315 x 365 mm³
Lemon: 200 x 200 x 73 mm³
with the same build volume
Are you making claims about the quality or reliability of this printer? Sounds like you are a consumer and not a maker *shrugs*
13:50 Why would you cut the motor shaft without using a jig to hold it in place? Goodbye bearings, the motors would probably break in a few months.
this is a good effort!! thanks!!!!
Dear, what would be changes if you wanted this to print 1x1x1 meter ? or that's impossible with upside down design?
Easy since it’s all 3d printed, just scale it up in the slicer
Scale it as in nothing is fundamentally different about the design but you still need to make an entire new set of models. . . Right?
You could scale this up, but it won't work well. We've have had to completely redesign the frame for our experiments going beyond 220 cubed volume.
@@nomadsgalaxy what was the major engineering changed needed in scaling? Was it rails? A second z support?
@@lunaumbra5179 the current bed is at a cantilever, and adding additional weight to it will cause the joints to eventually bow further than what is acceptable. Scaling up to just 256 and above requires and additional Z Rail at the minimum, which inherently changes the entire core design of the machine.
It's a fun problem we're currently working on :)
Wow, ultra clean build and really entertaining! Well one! :D
What would this motion system be called?
This motion system is called inverted hbot, or some have coined it Positron system. It’s not corexy but the motor kinematics are identical.
nice one amigo. merry christmas :) xoxo
a 200x200x200 would be fanstastic. 180x180 is very limiting.
Hold that thought I’ll be right back lol
next tier sound effects, love it
Amazing. Absolutely amazing.
positron looks sick!
now that was clean
That is a good project! Love it!
wow what a good vid broski for real
please dont put solder in screw terminals! :/ it is a fire hazard
Really well done, congratulations! Is it possible to have the names of the songs used in the video, especially the one at 18:48, thanks
I don't think I'll build a Lemontron but I subscribed because you did such a good job on the design and video, sound effects and all. ;o) Keep up the good work.
This is the first video with sound effects that I liked. Well done sir.
Can we get proper stl files? We don't all use fusion 360 and I'm personally not comfortable using 3mf files.
amazing!
Hilarious video and gaw dang I want one!
I like the sounds effects
reminds me of Jelly Car
I loved Jelly Car
Can the lemontron print it's own body?
As in, is does the body fit in the build area?
Build area is 180x180 and the body is 200x200.
Nice work
thats awesome :0
*what if i just... 🤔 🤔 okay okay, hear me out, what if i just turn my Bambu Lab printer upside down...*, but i really like this wonderful manifestation of yours
Would one be able to emulate the SampleName PCB with just some protoboard cut to proper shape?
Probably. I haven't paid close attention to the mounting though, and protoboard with jumper wires would probably be thicker than the PCB. That could be an issue.
In my experience, thermal paste is inappropriate in such places. The temperature is too high and the thermal paste dries quickly and stops working (starts to harm).
There are pastes rated for 400°C.
@@youtubehandlesux This is not what is shown in the video...
Damn nice. Merry christmas :) Is that Bambu Galaxy PLA on the Toolhead? Looks really good
amazing work!
ayy nicely done!
Something tells me you watch a lot of Asian cooking videos, Has to be the editing and the sound effects you make by yourself 😂
Hyped! Thanks so much!!!!
that build plate area is larger than my wanhao i3 mini!
music is so loud, better without music, other than that good to see another positron derivative
how is this expensive than an entry level 3d printer?
14:56 Just... Use something like Fly Gemini instead of cramming a pi into it? Why would you ever do that on a space constrained 3d printer
🔥
My favorite part was when he went boing.
I get it that it is open source and all but you can buy 2 A1 minis and mount them upside down
Good concept though.
You could also mount your brain upside down if you circle the globe in the opposite direction as it spins 😇
5:45 I prefer the mnemonic BlaG BluR
Impressive!
This is seriously impressive work! And the sound effects
Your energy and the sound effects really elevate this!!
My ADHD ass was locked in the whole time
bars
Sheesh! Just recovering from constant prntrprn-boner watching this. Must have taken a looot of time to make the video and the design. I like your humour - must be the same kind of ADHD I have. Can u tell us what the beautiful glitter filaments are? The purple and the dark with blue glitter are just gorgeous in macro.
The blue filament used on the tool head is Cookie Cad Witchcraft ABS and the top plates and z axis is Witches Blue PLA. The lemon is Solar Flare PLA.
Anyone selling finished units, im a hobby user not a hobby builder.
did he mention, that the design is based upon the positron printer by kralyn? ruclips.net/video/YA3_YZjOq-A/видео.html
I came for the printer, but I stayed for the sound effects.
Cantilever bed 🤮 Just put another rail on the opposite side man, I can't see this thing going over 15k acceleration
open source? 🤣
I really hate this 3D printer it's just gimmick for the sake of gimmick
Why are you so wise, and why do you give out your priceless advice for free?
It's not a gimmick for some. For me it's the only viable printer option given my lifestyle. I'm tired of using other people's printers and makerspace printers. It's always a mystery if they are in good condition or their quirks.
Plz hate it harder. I think it likes it.