This is amazing!

Thats crazy cool man!!! Good work

As an senior engineer I would like to complement you on your work and your presentation of your findings and I want encourage your to dream big you have a bright future ahead of you. Please don’t play small the world needs people to shine bright..

If this gets integrated into klipper it will have a huge impact on tuning!

This is amazing Mike! One step closer to one click filament calibration!

Absolutely fantastic work Mike, and well delivered in the video. 👍

As a fellow voron owner these are the kind of mods that keep open source printers up to speed with proprietary printers like bambu labs. Amazing work!

Fantastic work 🙌

0:18 what is pressure advance? 3:24 what if we could do this automatically? 5:13 how the computer vision analysis works 11:32 system in action 12:10 demo of printer printing test patterns 18:24 conclusion

Awesome work man! I knew it was only a matter of time before someone from the community gave us bambu tech without the bambu! Thank you for doing all the hard work. Looking forward to more!

Great job digging into the research on this. You're helping bring the industry one baby step closer to truly automatic 3D printing!

The one thing stopping from getting another Bambu x1C instead of a voron 350mm kit is this! Mike awesome job! Can’t wait to see this adopted by the community!!

Really nice work. Pressure (linear) advance is one of the hardest things to get just right, and there's lots of room for improvement. For example, it might not be a linear relationship between speed and pressure, and it could also benefit from some lookahead. We'll keep doing our part to make it better, and research like yours is going to be really helpful to that project.

You had me at capstone, well put together project. Engineering done well advances the community. Where ever you work for, will be blessed to have you.

I don’t know how I’m just seeing this! I’m studying at BYU right now, this gave me hope for when I get to my capstone project being able to do something related to 3D printing. You’re awesome!

First of all, great work! This is actually a perfect case for statistical modeling. I’m not sure if it’s possible to do without any form of commercial initiative, but all users should just share their readings from this setup for mutual effect. As you say, it will be a lot of variations in filament and general setup of each printer, so all this data should be aggregated and then modeled, then returned to each print. Again, great idea.

Looks really good. I would love to see this as a deployable module similar to how klicky is deployed.

As a fellow computer engineer and 3d printing fan, this is an amazing capstone!

Woow. That’s a huge step forward for many DIY machines like VORONS. I’m curious to get such a useful tool in the near future. Thanks for all that effort.

I was working on the same system but you have awesomely created that approach differently brilliant work!!

Hey, I saw this live at your capstone presentation! Glad to see you're getting some recognition for this here too.

A lot of very clever and hard work has gone into this. Brilliant!

You did a marvelous and truly helpful project that will move us forward. I definitely want such a solution.

Wow, I can see a lot of work went into this. I will add it to the list of projects to try.

First off all , thank you for the perfect way to go from a idee to a working product and also sharing it with 3D print world . Second you also open the door to new bedlevel detection , stringing detection ,fire dectection , bed losing off the printed object , With some ML/AI It shall really become the future off 3D printing

This is a very genius idea to takle this problem. I first thought, you measure the pressure in the nozzle to have a constant pressure over the whole print.

Thanks for helping the 3d printing community.

Sensational work, I can imagine this could be developed into a very slick system with all the ideas you still have in your imagination.. well done.

Amazing research! Truly impressed and I hope this can get integrated into Klipper or recognized by the Voron Design team as a mod. Great work!

Woah. I thought I'd have to figure this all out myself. Even had a line laser in my Amazon cart and already bought a nozzle cam. You just saved me a TON of time and effort. Woohoo!!!

This both great and exciting work!

Mike this is absolutely outstanding work. I'm going to fit this system to all of my printers as soon as I can make time to modify them. I'm on a quest to build the ultimate tool head and this is going to bring it to the next level. Very good stuff! I wonder if you could get better results using different build plates by printing basically a raft that has been ironed and then print the lines to be scanned on top of that. A bit excessive and might defeat the purpose a bit, but it could be interesting for people using exotic print surfaces not conducive to laser clarity.

I see soooooo much future with this technique, more then just pressure advance. Maybe even do frequency calibration like this! Close the loop from input to printed part!

I got a Voron and a Bambu X1 .... thanks to you, i may be able to upgrade my Voron with this! At first i really didnt care too much about the lidar sensor of Bambu and the calibration .... But now i know what it means to have it automated. Thanks for your Video and Work! i hope this will be easy to import and use for all users in the future! Thanks ! Great!

Amazing job, thanks! For your effort!

This same hardware could be used to detect (and maybe even repair) first layer adhesion problems. Sometimes if I have a problem with the first layer, I just pause the print, paste on PVA glue, and smooth it out with a hot tool. It occurs to me that this process could be automated by running an ironing pass over any broken lines.

Very clever. I am in awe. Fantastic work.

Amazing work man! When it will be integrated in klipper it will be huge. Can't wait to try it out

One small step for man, one giant leap for opensource-kind

Damn. Every time i think my Voron is finally completely decked out with anything i could wish for, somebody comes along with an even more genius idea i MUST HAVE NAO! 😁

Great to see an Open Source approach to this! Bambu uses the same idea (line laser plus camera) for calibrating extrusion. It would probably be little effort to add extrusion width calibration to this too. And it should be a reasonably simple job to implement this for Marlin (which calls it "Linear Advance" but it's pretty much the same idea) too, maybe as an OctoPrint plugin? I expect this will become the standard way to calibrate printers, and I imagine there might also be cheap nozzle-cams suitable for this coming from China soon.

Excellent work!

Awesome project! A great video with clear explanation and showing the process and results. 💯 Great job! Keep up the good work! 😄

Thanks for giving FOSS printing nerds a chance of competing with the bambu/clones.

Awesome work. Makes it even harder to me choosing my next printer

This is very impressive and thorough

Good job know we need to get it into the mainstream 3D printing community awesome job

Excellent work! Very interesting approach and a great breakdown of the challenges you've experienced and solutions you've developed. This solves a major headache in the 3D printing community, and you are going to make a lot of people very happy with your work.

Effective. And so much potential with so many obvious easy QoL improvements that anyone can make to the code today (even before actually having the equipment for testing). For instance, iterative/quick collapse by measuring after each calibration line (or 1 - 3 lines) and adjusting based on too much/little pressure. By making smart adjustments after each line we can quickly make coarse changes to the correct values and then finer changes once closer to the range. We can probably turn this into a binary search, the middle will likely be dynamicly defined with (eg. no less than 3 lines mandatory with a middle value, too high, and too low within printer precision threshold or a single line with a score threshold would be necessary. Precision threshold is more dynamic but would require increasing the testing range in order to get measurably too high/low values to verify we found the center). May or may not be able to do this in one pass as well (not sure if we can scan while printing or if the acceleration will have to much of an affect on the camera between fps and rolling shutter).

Totally amazing! Keep up the great work!

The 3d printing community is amazing! Its work like this that is the reason open source designs will always be neak to neak with the big dogs

Thank you for keeping open source!

Outstanding work! I can't wait to see the potential for this when you work out the Klipper integration! I predict your work will be widely lauded and adopted.

This is awesome! Thank you for sharing your work!

some premium content right here !!

Perfect, I was scared i would one day start another project i would never finish 😂. Appreciate your work!

Really very interesting. Great work!

🎉 that's great ... can't wait to see how this evolve ... I would really need to implement and try this.

Great work! Excited to see all the other developments you work on

Damn dude this is amazing 😍! I frigging need to put this on all my machines...

3 Thoughts: 1. This might lead to the realization of pre-emptive pressure advance, it's obvious that PA on it's own still isn't enough, it needs to have a pre-emptive kick one way or the other to have a truly clean line during acceleration changes. The timing of that kick it already gives, obviously isn't in the right place, a missing time component that will likely vary with each meltzone and pressure chamber size. Maybe one day we'll get that deviation to true 0. 2. Automated stringing and retraction calibrations? 3. As the laser is triangulating depth, you could then use this to figure out the build-plate depth, the laser line itself would need to be tuned to very square, or software corrections for uneven skew and lense distortion.

very innovative. ffd 3d printing need more of this!

Great work!!

This is amazing! I cannot wait to see the progress of this tech

One possible method for eliminating ambient room light affecting results would be to use a infrared line laser and a infrared filter over the camera. This would also have the benefit of simplifying the software post-processing required to get suitable images for analysis. Great work and presentation!

I am nearly a year late to this, but this really needs to be part of the tool changer mod of the 2.4 with this being on a dedicated head. Imagine loading 5 different filaments and this automatically calibrating all 5 filaments!

This has the potential to make a big improvement for Rat Rig and Vorons, these users would be ready to purchase a kit with a Klipper add on

Great work! I assume you tried doing the same thing but by just taking a photograph of the test pattern and running it through a similar process. If you did try that, why did it not work? It seems (on the surface) that it would be a much faster process, than having to scan each line with the laser and camera setup. You might have to deal with some parallax and/or tilted plane issues with the camera, but I believe there are algorithms that already do that. Just curious.

I'm wondering whether PA cannot be tuned in a totally different way. As explained, PA is to compensate the delay between filament moving on the input side and pressure causing plastic to move out at the nozzle end. Would it not make more sense to just measure this delay by ex. measuring the output pressure using a load-cell and timing how long a change at the input takes to affect the measurement on the load cell? If the load cell measures upward pressure on the printhead (as the Mk4 seems to support), then the PA value could even be measured and corrected throughout the print.

I think this could work with the laser mounted to the gantry separate from the nozzle. It may only make a few grams but it could be a wide angle beam and that could be added to the data. Also a beam from both sides could tram the bed accurately. This is amazing and i hope for bigger things in your life.

Fantastic project, and a very clear and well explained video!

This is awesome man. I’m super excited about this.

Awesome work! This could also be used to automatically align idex print heads, optimize first layer squish and more!

bloody outstanding work !

This is a great video! I have a suggestion though, why not have it analyze the stl before printing and use an algorithm to determine where and when to slow down and pressure. Another idea is to use the camera to look at the line being printed and make adjustments to the next pass.

Grandissimo! altro passo avanti nella tecnologia della stampa 3d. bravi!

Great work, thanks Mike

Great Job!!! I know, this is soo much work and takes more time someone thinks. Thank you very much!!!

It would be pretty sick if you could make the nozzle cam work in it's normal position pointed at the nozzle. Then it would also be an easier upgrade for people with existing nozzle cams.

Great work, can't wait to know more about this.

Just awesome 👏

Wow, that's what I call a progress!🎉

Hi Mike, this is a great an awesome work. Just a comment, maybe it is easier and faster to just print one long straight line instead of multiple ones and then scan it backwards, that way you don't have to stop the toolhead

Love this. Have you considered using IR lasers and camera? Might make it so you don't have to do the test in the dark

Cool video, love the project.

Really interesting. As you say as a Proof of Concept its works perfectly and is of huge benefit to the 3d printer community! Being able to scan all lines in one pass / a couple of passes averaged out would of course be a significant benefit. Also, how would different colour lasers affect the system? Would lasers in a band less affected by visible light and appropriate camera lens filter help? Would putting a red filter on the camera in the current setup help? Soooo much research opportunities to look at making this even better!!

Great work. Impressive

Nice work indeed. Excellent work making filament extrusion calibration more deterministic through automation. Maybe this will work to inspire other similar means to automatically calibrate other printer mechanisms and properties. I wish there was a more deterministic calibration method like this for belt tensioning.

I own a bambu lab X1C and I had a bit of a guess on how it worked (I was sort of correct) but didn’t know how to implement it into a single package onto my vorons, but now I can! Maybe I’ll even use an IR laser to make it invisible!

Well done.

Oh and amazing work BTW!

Is it possible that a prediction system could be developed, so only one line (perhaps with more speed pulses) would be required? Maybe a single thorough calibration would be required, and then the printer could do more with less data for other filaments and temperatures? That way, it could replace the priming line with this, and then auto calibrate advance before each print.

This is just bringing Bambus Lidar to the reprap Community

Insane!

i dont know why this guy only has 150 subscribers. Share his channel, this is going to be "the next big thing"

Amazing work! This is pretty close to the concept of barcode scanners. In theory you can have the decoder recognize the width deviation at the start and stop of the fast moment. it would only need to take 1 image of the full bar set. It would eliminate the needs for scanning lots of frames. Too bad developing such a scanner isn't trivial 😔 With that said it might be possible to hack one of the bar code PCBAs which have a sensor optics and lighting integrated into 1 module

Great job man!

Great work!

Two line beams of different colors set 90 degrees opposed to each other, but zero’s in on the print bed should allow for an optical scan of a print plane yeah? Measure the distance between the two lines when they deviate away from each other on printed layers, check for consistency, could do first layer scans to see if a print should continue! I want addons to turn my ender into a bambu labs level device eventually

Bambu's moat keeps shrinking lmao; fantastic work! Do you think this would work better or worse with an IR line laser?