Feed tube is just too long. Makes for more friction fighting extrusion (especially when at end of spool and the filament is curled tightly) and more chances to catch on stuff.
I’m a Machinist. Linear motors have been used in CNC milling machines and lathes for years and they are incredibly precise and quiet. I always thought they would be cool in a 3d printer but I had never seen one small enough (or cheap enough). I’m glad to see someone has figured it out and is having success with it!
@@allahjohnson9654Eh? Linear motors are used in specifically the most precise machine tools though. It’s purely a matter of expense for 3D printers since the benefits are slim for a process that has next to no real precision requirements.
@@christophergrove4876I'm an American from the East Coast and I know what they are talking about.(Yes even why it's special) But I've been called a walking statistical anomaly or outlayer before. So you're most likely correct.
@@kanck7909 It means the motors for x and y are stationary and both belts are pulling on the toolhead. For diagonal movements only one of the motors turn, for X movements both turn the same direction, for Y movements they turn opposite directions... Most printers in this configuration have their bed move up and down, except the Voron 2.4 which has a flying gantry.
I really want accessible linear motors with accurate linear encoders. Honestly once theyre around 150 each Id probably try to make a printer out of it.
Using linear motors is still not like maglev. Maglev is build on having the cars “floating” on the track to reduce friction. This on the other hand still uses regular rails and linear bearings to hold the carriage in place. The linear motors do give a higher level of speed, acceleration and accuracy though
It looks so wiggly and unstable in its movements, but it’s easy to see that the print is coming out very precisely. 3 microns is incredible accuracy, what a machine.
Not even gunna lie I came up with the idea of magnetic axis levitation a couple years ago after thinking on a way I could improve the accuracy of my 3d printer but sadly never had the funding, I still was learning all about magnetism for almost 3 months studying and coming up with a prototype on paper and they beat me too it 😭 I’m glad it was a good idea and someone could bring it to reality, a little sad i couldn’t be the first but hey at least I know I was onto something 😅
The motion system is anything but "almost silent". It is actually quite loud. Much louder than any other 3D printer I have ever seen. Sure you can't really hear it when the loud cooling fans are running, but turn them off and you will definitely hear it. The motion system alone is about as loud as my P1S with both part cooling and Aux fan running.
I wish I could get mine to print. I've had to replace the entire Y axis, had a bad cable connecting the Pi to the linear motor controller, and now the Pi expansion board is shot. The probe is wildly inconsistent for me, and the bed is warped like a Pringle. They need to fix this machine before people buy.
I love that we've moved past the mk2 and creality clones etc and starting to see companies pushing the boundaries again. Now we just need to keep the part cool quietly and we can have a printer in the bedroom at night.
i would imagine acceleration and deceleration are pretty limited, but just like getting bigger motors, maybe there will eventually be more powerful linear actuators available for heavier toolheads and faster print speeds
@@sportbikeguy9875linear motors are already being used in some CNC machines to make them move faster compared to the traditional ball screw. I believe the main drawback of linear motors is heat generation. Often linear drive cnc machines need complex cooling systems to keep the temperature down
Why didn't they use it in a better printer. Do they work in a heated chamber? Would they work on vertical rails in a Delta setup? Does the magnet rail support more than one gantry? Would be cool on a 1m printbed with 3 or more printheads. Thats where i would really see the benefit. Maybe only one gantry supporting more print heads or move them on parking rails. Will it work reliably in a heated chamber up to 80°C?
A typical human body cell is 30 microns. This has 3 micron precision. I don't know what the medical applications of that would be, but we gettin' small.
More magnets to get rid of cheap reliable belts, 3 micron accuracy is impressive but it probably isn't impossible for a belt printer, silence is also very possible for belt printers but apparently not for cooling fans anyways, it also doesn't seem much faster than a regular printer... soo what's the advantage? excuse my skepticism
Calling it "mag-lev" style isn't quite correct. Mag-lev systems require super cooled super conductors, and actually make the traveling mechanism float. This doesn't do either, although that doesn't take away from the features it does have. :)
So, does the maglev rail system basically negate most all movement vibrations? Logically, it seems like it would, and probably the biggest reason it achieves that 3 micron accuracy.
They really couldn't include the enclosure for $1599 us? They charge another $209 for it. Yea it's a neat idea but idk I can get 3 p1s for that enclosure included an it's proven reliable
Does it have the same resolution as the steppers with belts? I assume 3 micron is the answer. How about heat when enclosed? I know heat can affect magnetism.
By what path is it being powered, through the linear motor system? Where on/in the machine is most of the noise originating? Could it be solved by putting a shell over top and vacuuming air out of it? Less air, less sound.
I’m not an expert on 3D printers but the average is 200-300 microns with SLA at 25 microns ( Average) at 3 microns this is the smallest layer height I’ve heard of .
@@lasarith2You are missunderstanding. 3 microns is not the layer height, it's the movement precision in the x/y coordinate system. That is if you tell the machine to move to (3;10) in the gcode it will probably land within (3±3×10‐⁶; 10±3×10‐⁶) in reality. To clarify, it says nothing about the precision of the extruded plastic.
How would the magnets behave if you enclose the printer to do abs/asa etc? as far as I know magnets are losing magnetism when warmed up. Not 100% at those temps but stil
