3D Printer Anti-Vibration HULA Feet - Do they WORK?! (Tested on Bedslinger, CoreXY, Cantilever)

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👉🏻 In this video I am testing how a unique design of anti-vibration HULA feet performs on different types of 3D printers like cantilever, full frame bed slinger, and core-xy. Do they work or are they just a skip?
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📢 OTHER MENTIONED THINGS:
- HULA anti-vibration feet makerworld.com/en/models/417509
- CNC Kitchen video • Seriously the BEST $2 ...
- Made With Layers video • Wobbly 3D printer make...
🕗 TIMESTAMPS:
00:00 - Intro
00:42 - Making HULA & more info
02:30 - Mid-size bed slinger results
02:52 - Big bed slinger results
04:34 - CoreXY printer results
05:37 - Cantilever printer results
06:30 - Summarizing all results
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[@tomm6137]

So pretty much every video on these things has proven them to be almost useless for better print quality. The only thing these things do is make your desk shake less and reduce noise.

[@ototheo2740]

Pretty much my experience, but that was exactly what i was after. The printer put resonaces into the floor i could hear everywhere with these feet installed it's gone

[@c3p1111]

same here

[@Hewbert-r5q]

I got mine from voxelpla and it stopped the shaking on my table completely. As for print quality it is the same as before. That is a win for me.

[@aleks138]

thanks for taking the time to do all the testing. like many 3d printer mods this is a solution that doesn't solve any problems

[@HonestBrothers]

I use Sorbothane Duro 50 1.25" hemispheres on my bed slinger. Works wonders at isolating and damping. And you don't have to assemble anything.

[@Brocknoviatch]

That looks interesting! Like to see some results with that.

[@beauregardslim1914]

Those dampeners do look really flimsy to me. If shop machines have dampening, they always seem to have chonky hard-rubber dampeners. Very interesting that they actually helped with the big bed slinger. That's useful information.

[@PrintingPerspective]

When alone yes, but with four on each leg they feel way stiffer. I would play with the stiffness if improvements I got were higher. But Input Shaper does ~95% of the magic already.

[@billytalentrocks345]

The hulas seem to just be a misunderstanding. In an earthquake,the ground shakes and the rapid movements break the building. But on a printer, the printer itself shakes. If anything, the hula protects you printer from an earthquake, and it prevents shaking of your table. What you really need is effective damping and a way to dispose the energy from rapid motor acceleration.

[@MrBaskins2010]

thank you for your scientific approach to it all

[@youtubehandlesux]

For cantilever printers it's better to leave square corner velocity and just pump up the acceleration as well. For my voron 0, 5 square corner velocity with 40k acceleration runs smoother than 20 square corner velocity with 25k acceleration

[@ErdeMitSchnautz]

I put my printer on squash balls. They come in different hardness/dampening values. It really helped to quiet down my printer because the wood shelf it's standing on acted like a subwoofer with the fans.

[@Roobotics]

This reaffirms my suspicions, decoupling your printer from a reference plane (solid ground) to sink it's vibrations into, usually tends to push those vibrations to other axis arbitrarily. And that's even harder to cancel out. Tuned dampeners is really the only true answer, and they would be unique per mass, likely need to be integral to the frame and/or motor mount systems. The easiest solution by far is input shaping, then slowing things down more when you really don't want resonance artifacts.

[@ywsx6489]

i tried isoacoustics speaker feet i have lying around on my corexy and it damped vibration transmission to my rack. print quality wise seems the same. i have since switched to cheaper sorbothane feet.

[@Evo_Spec]

Has there been an opposite test done somewhere? like where people bolt down the crap of a 3d printer to concrete or something?

[@Brocknoviatch]

Would also like to see a comparison against cnc kitchens setup with the foam and tile.

[@Jstthts]

My understanding is that the point of vibration suppression is absorbing the vibration in a way so that the printer remains still. If the printer is moving, there is no point. Concrete slabs still the king imo.

[@enginerdy]

Transferring some of the kinetic energy into the feet reduces the amount of peak acceleration seen by the print head. I think it depends on where the stiffness in your system is as to whether it helps or hurts.

[@gltovar]

I wonder how squash balls compare to hula feet

[@morkmov]

usar los hula hula y esperar lo mejor jajajajajajaja igual intente hacer una base para mi ender s1, mejore un diseño que estaba gratis pero realmente parecían amortiguadores. jaja cuando iniciaba una impresión todo se movía como tus impresoras en tu video... haciendo peor la calidad! Al final la ingeniería para reducir las vibraciones es colocar una goma similar como la que viene por stock en los pies de la impresora para que pueda absorber completamente cualquier movimiento, como majin boo puede absorber cualquier golpe con su densidad del cuerpo gomoso. ahora imagínate un resorte o que aporte mas movimiento como los hula hula. empeorara!! termine colocando una esponja densa como la que viene de stock y funciono de maravilla, ya no vibra, al contrario absorbió aun mas movimiento

[@Scynide]

I decided to try these out for my K1. Got the solid parts printed, but I'm waiting on VoxelPLA to ship the hardware... ordered over 2 weeks ago. Good video with the various tests, especially considering the instructions for HULA say to run RC before installing. Which test model did you use for your tests?

[@PrintingPerspective]

Yeah, I am not sure why, because those feet can affect resonance frequencies of the printer, so re-running the shaper should be right way. I used klipper ringing tower print.

[@woutervossebeld4664]

I came across the 'sherpa crew' a 'dual stage' extruder. It might be interesting to see if such a design has benifits for flow rate/layer consistency

[@TheOfficialOriginalChad]

Why do you think we aren't seeing a spring and pressureized damper approach?

[@DrZylvon]

Thanks for the good piece ! ps. as much as I understand you don't intend to make this channel focus on specific models, the finetuning of your P1S still is very interesting to me :-) perhaps you could do a side video with all the things you put in place for best results?

[@PrintingPerspective]

The only adjustment I made that affects print quality is the belt tension to reduce VFAs. That's literally it. You will gain way more by manually fine tuning flow rates and pressure advance for each filament and for example by changing wall printing order to inner/outer/inner. :)

[@noanyobiseniss7462]

You would probably get better results if you made one large Hula that the printer rides on as that will provide a much larger damping area. You are hitting a hard stop on those little feet. Try scaling it up and use the foam below the scaled up one and I bet you will see some significant improvements.

[@APxKP]

i bought Spring Isolation pad Shock Absorber feet for subwoofers for 10 bucks and work better than those. also these only work if you have a wobbly desk. using them on stable surfaces makes them worse.

[@Karavusk]

I build some similar feet for my modded Sapphire Pro. It is basically standing on TPU springs. My printer seems to be a bit too heavy for this to work well long term and the mass isn't centered so it shifts to the back feet. That being said I noticed a pretty big improvement for my max accel and the noise is a lot better with these feet and being on the floor vs on top of some drawers. Edit: My guess is that if your frame is solid then it probably doesn't help that much if at all but if your frame isn't that strong this might have a bigger impact. Being allowed to swing back and forth should take a bit of force that would normally be absorbed by the frame away.

[@Ryxxi_makes]

Has your PCBway SLS nylon parts creep ?