DIY Booster for CHT Nozzles | 3D Print Even Faster

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3D Printers are getting faster and the CHT nozzle can only get so long before its effects taper off, and typical nozzles have to be extremely long to get the same effect, making them more expensive, and harder to support and compensate for pressure advance. Here's one solution, and instructions to make it.
All tests were run on a 0.4mm knockoff CHT nozzle with Elegoo Hyper PLA. Later tests with larger nozzles may come.
My 3D Printer has gotten fast enough that a volcano hotend won't cut it. A CHT nozzle helped, but even running hot it wasn't enough. I needed a more efficient nozzle. The original idea came to me in December 2022, and the first prototype came mid 2023.
Printables: www.printables.com/model/5993...
Original Video: • A Novel 3D Printer Hot...
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Referenced Videos:
www.cnckitchen.com/blog/nozzl...
• FLSUN's New S1 is twic...
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Background Music
Energetic Rock Beat: pixabay.com/music/beats-energ...
Namaster Trip - Ofshane: From RU-vid's Audio Library
Chapters:
0:00 Intro
1:10 Prep the bolt
4:05 Cut Slots
5:29 Possible Configurations
7:17 Curl Testing
7:49 Flow Testing
8:22 Future Pressure Advance
8:40 Conclusion

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Опубликовано:

24 июл 2024

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Комментарии : 79

@cest7343 15 дней назад

This part screams wire EDM. Prototype in brass

@Roobotics 15 дней назад

My thoughts exactly, just a pilot hole in center, but then you kinda need a EDM with a tilting XY axis instead of panning.. I haven't even seen one of those before.. is that a thing?

@cest7343 14 дней назад

@@Roobotics they call them "4D", each wire guide has X and Y motion controlled by CNC. Pretty common option AFAIK

@Roobotics 14 дней назад

@@cest7343 Very interesting, I've seen lots of 4th and 5th axis CNC stuff, but never an EDM that can skew it's tilt mid-cut to make faces that aren't parallel, IMO they're often just used like glorified Styrofoam cutters in that sense, so I'll have to check those out.

@aaamott 14 дней назад

@@cest7343 Makes me wonder if that could be done with the new Powercore II machine. It's like $1500, so I won't have one any time soon lol but maybe someone else will!

@perenis-z9r 12 дней назад

Sinker EDM is much easier to set up, and could just use his existing 3D printer with a brass shim used for the cutter, and an RC adapter on a lab power supply is very cheap.

@polycrystallinecandy 17 дней назад

Call it the Xylem ® nozzle Xylem is the plant tissue through which water and nutrients are pumped up from the roots

@aaamott 16 дней назад

@@polycrystallinecandy That's clever! Gonna save that one on the list for voting

@danaa26 14 дней назад

Very cool. Keep us updated on next steps. I love that you're finding ways to do this inexpensively too.

@bobgarrish 17 дней назад

Nice work! There's still a lot of room for innovation in 3D printing, can't wait to see what'll happen when you get your hands on an EDM...

@aaamott 16 дней назад

@@bobgarrish Thank you! Lol maybe I should set up a fundraiser: Buy me a Powercore EDM Pretty Please? 😆 But seriously, working on a way to make that money back if I buy one!

@mirag3304 17 дней назад

that's an amazing improvement and design. keep up the great work and thanks for sharing. the presentation of the video itself was also top notch. well paced and engaging. I look forward to what you do next.

@aaamott 16 дней назад

@@mirag3304 Thanks! I'm glad you enjoyed it!

@how_we_love 18 дней назад

Thank you for sharing! I can't wait to try this.

@aaamott 18 дней назад

@@how_we_love No problem! I'd love to see it when you make it!

@educationalpurposesmostly 16 дней назад

I would like to see a test with the cht spacer with a cht nozzle compared to a standard volcano cht nozzle. This video is great tho!

@aaamott 5 дней назад

@@educationalpurposesmostly I’m hoping I can do it eventually, but $30 is a lot to drop on a nozzle… but once I do, I’ll do knockoff cht volcano vs authentic vs knockoff with a spacer. And I’ll stack the booster with each to see what difference it makes, *and* I’ll test with the new cht meltzone extender you can buy on Aliexpress. My thought is that it will be fairly useless when added to the authentic cht, maybe even decrease flow, but we’ll see!

@stefanguiton 18 дней назад

Excellent work!

@aaamott 18 дней назад

@@stefanguiton thank you!

@onurcetinkaya4873 17 дней назад

this is a work for Wire EDM, I guess nobody uses that due to the cost. With wire EDM you can put like 100 fins in that extender. Edit: Did the CAD drawing, my 100 fins estimate was too much, could fit like 18 fins that could be reasonably manufactured.

@aaamott 16 дней назад

@@onurcetinkaya4873 I dream of having EDM. The angled fins and cone make it even harder, since it would have to be at least 4 axis to get them right. But I've wondered if sinker EDM would work with a shaped bit coming in from the bottom and a cone from the top. Have you heard of Powercore?

@onurcetinkaya4873 16 дней назад

@@aaamott Yes I did hear powercore, even bought some parts to make something similar, but couldn't start it yet :D You don't need 4 axis EDM for this shape, you can first make the cone with a traditional lathe with a tapered drill bit, then put the fins with 2-axis EDM. At such small scale, sinker EDM might be more economical, but sinker tool also need to be cut from copper with EDM and that would be expensive and fragile, if nozzle is made from aluminum maybe sink tool can last like 50-100 times, if the nozzle material would be copper it can last 1 time at most. I did make some CAD drawings and it is possible to put like 18 fins with 0.18 mm wire EDM, which increases the surface area like 6 times compared to a regular nozzle. Fins on my design will also be very fragile I suppose.

@aaamott 16 дней назад

@@onurcetinkaya4873 Dang! if I manage to justify the cost with a way to make the money back... That would be great if the Powercore could be used to make these!

@onurcetinkaya4873 16 дней назад

@aaamott I don't think this violates the CHT patent either. 3d Printing community needs this kind of high performance adapter. if you can make them that would sell. If I can make them, I will write to you.

@cosmic_cupcake 16 дней назад

Perhaps not Wire Edm, but an EDM press could work fine for mass manufacturing here. Saves you the hassle on threading the wire in and out of every workpiece.

@fritzgutten1 17 дней назад

Very nice demo and proto. Looks like you could benefit from some tool upgrades! Keep up the good work!

@aaamott 16 дней назад

@@fritzgutten1 Agreed! I've considered making a lathe, but what I really hope to get is the Powercore EDM. And thanks!

@dhivan 16 дней назад

This is incredible

@aaamott 16 дней назад

@@dhivan Thank you!

@S.A.S.H. 15 дней назад

Quite impressive.

@aaamott 14 дней назад

Thank you!

@fintechrepairshop 17 дней назад

Pretty cool, what bearings/bushings are you running on the carbon fiber rods?

@riba2233 16 дней назад

Would also like to know

@aaamott 16 дней назад

@@fintechrepairshop PETG printed bearings at first, now brass bushings. I'm planning to do a video on that later because I feel like most people don't share the full experience or pitfalls. The bushings give me more friction than the PETG. If I could find LM12UU solid bearings I'd try those. There are a lot of potential issues if you don't get the spacing just right, but once you do it works pretty well. Also, sanding the rods from 12.2mm to 12mm to fit the brass bushings made friction way worse. I figured it was worth the rods to experiment and share.

@aaamott 16 дней назад

@@riba2233 in case you don't get notified, see my previous comment ;)

@riba2233 16 дней назад

@@aaamott thanks, y0u are a true chad :)

@arthurlobo8953 17 дней назад

Can you please share the step file for the CAD of the spacer? Would like to get it manufactured/review and improve the design to my needs. Thanks in advance! Edit: see you have the 3mf file on printables. You should call it XHT (Xternal Heating Technology)

@aaamott 16 дней назад

@@arthurlobo8953 glad you found it! I'll add the step file as well by tomorrow morning.

@aaamott 16 дней назад

@@arthurlobo8953 Also, I like the name! I'll add it to the list for voting!

@uiopuiop3472 17 дней назад

new name: X, formerly known as twitter

@aaamott 16 дней назад

@@uiopuiop3472 Beautiful. Melts filament faster than confidence.

@michaeleitel7186 16 дней назад

If you want to have the bore in the true middle you only have to reverse. Clamp the object in the drilling machin and clamp the drill. That way it's self centering.

@aaamott 16 дней назад

@@michaeleitel7186 that's a great idea! Maybe I can find a chuck to clamp the drill bit to the bed...

@gvasvari 16 дней назад

@@aaamott nope, you have to SPIN the part you are drilling and clamp the drill bit FIXED to the bed/vise This way the drill bit makes a hole around the rotational axis of the object

@charlesspringer4709 12 дней назад

Cruxiforming Nozzle.

@peterzehentner8287 8 дней назад

Gute Idee. Musste aber die Video Geschwindigkeit auf 0,75 Einstellen😂

@aaamott 5 дней назад

@@peterzehentner8287 Haha, ich werde versuchen, das nächste Mal etwas langsamer zu reden 😅

@freedomofmotion 17 дней назад

High speed pla is bad at bridging anyway, pla + at higher temperatures get you the same speed but with bridges that work. I've got 51mms ( with some skipped E steps) out of a Kobra 2 hot end that's slightly modified to use v5 style nozzles and heatbreaks. I later upgraded the heating block and heater to a lower mass one with ceramic heater. 260c for that flow rate and it came out nice with flow test. I set my limit to 35mm³s in slicer though since I don't print over 230mms most of the time. For that flow rate I use 235c and bump it up to 245 for 300mms.

@aaamott 14 дней назад

@@freedomofmotion I'll have to try some PLA+. I just ordered some! I also got some new yellow Rapid PLA and got another 10% flow. Not sure what that's all about, so I kept current results. I'll test PLA+ and different temps next update, with a manufactured booster and I'll try to toss in a bigger nozzle!

@freedomofmotion 14 дней назад

@@aaamott Oh yes I should point out I was using a 0.6mm nozzle for that flow rate.0.4mm might of been lower.

@VolkanTaninmis 16 дней назад

Put thermal paster around nozzle and heater then get 15% increase in flow.

@aaamott 16 дней назад

@@VolkanTaninmis Maybe eventually I'll get some boron nitride paste...

@VolkanTaninmis 13 дней назад

@@aaamott just use thermal grizzly

@aaamott 13 дней назад

@@VolkanTaninmis didn't know it could go that hot! Thanks for the suggestion!

@nathan22211 18 дней назад

also what software did you use for the charts?

@aaamott 18 дней назад

@@nathan22211 Just excel! And the white text that appears afterward I added in KDEnlive

@nathan22211 18 дней назад

bruh don't cut toward your hand with that saw

@aaamott 18 дней назад

@@nathan22211 absolutely normally wouldn't, but these blades are so fragile I was more concerned about a snapped blade stabbing me in the hand, which was a common thing in my high school jewelery class years ago. But I did buy a tiny desk vice for it after the first prototype!

@user-bg7cf5bm1m 12 дней назад

That's was a bit scary to watch😂

@Mikehatespigs 16 дней назад

Dont wanna get bloody cut towards your buddy or away from you. Also im pretty sure the bit you showed is a security bit.

@aaamott 14 дней назад

@@Mikehatespigs Good call! I ordered a little vice to avoid this problem. The blade is suuuuper fragile and I've seen a number of people stab themselves when it breaks, which was my main concern. Any pressure and it snaps. I'll check for that size security but! Thanks!

@Mikehatespigs 14 дней назад

@@aaamott there different types and sizes harbor freight has a cheap case of security bits well not expensive and it had some x shaped bits