12nm Closed Loop Stepper Motor Unit for the 3DM-CNC machine
HTML-код
- Опубликовано: 13 ноя 2019
- 3DMeister CNC Machine Stepper Motor upgrade from
Open loop to closed loop
3nm to 12nm = 400ozf to 1700ozf
direct drive to timing belt, ratio 2/1
NEMA 23 to Nema 34
200W36V to 400W80V
Z axis motor mount unit
Y axis motor mount on mineral casted machine and Y-axis extension. 
Наука
fantastic design and manufacrute
On the X axis you used a ballscrew > coupler > rod to be able to use a wider belt (I assume). Did this contraption cause you any alignment issues? As in having to align 4 bearings? (float, fixed, and 2 rod bearings). I hope you'll answer, I'm having issue with a short motor shaft and I'm thinking of doing something similar. Danke!
the coupler are extensions. we had smaller 3nm motors on the axis. now with 12nm and timing belt ratio 1/2. no problems at all axis with it. With 2 simple float bearings.
Sound is very nice.... look like no chatter at all...
nice :)
Why that choice of gearing on the steppers? Are high traverse speeds so important that you sacrificed so much torque and rigidity?
Very nice epoxy granite mill by the way. I'm just surprised at your gearing choice! 👍🙂
so much better !
Yes, much faster, saver smoother and cooler.
Super Machine.....could you please let med know where in Germany you bought the pylley wheels and belt??? Regards from Denmark
Uhh , sorry I can't, maybe later. Thanks
Gracias por compartir.
Utiliza mach3?
Only Linuxcnc! i never had a problem, it is great
Hello men that motor you recomend me use it like a spindle?
I use a 2.2kw water-cooled spindle, 24000 rpm . for wood and aluminium; www.ebay.de/itm/251881544467
With closed loop stepper why buy servos is there any benifit?
it was a price benefit 2 years ago when we bought them. Today, i am not so sure any more. A servo motor should be better.
closed loop Stepper if you want to have something which works out of the box and dont need absolute speed and acceleration
Have you tried cutting steel with this set up? Would you recommend scaling up to a nema 52 at 50 Nm for cutting steel, or is it more about the rigidity of the table and the ball screws when you get to 12 Nm steppers? All of your replies and this video are very informative, thank you
Super, Thank you. Not Jet. But with the first setup (3Nm Stepper). The limit was always and only the 2.2kw Spindle. I guess, if i had much more torque and power(5+ or 10+ kw - i don't know ) on the spindle, this could be an issue with heavier cuts.
The ball screws can push or pull 150kg. The more powerful CLStepper-setup is only to speed up the machine, and we needed something more safe than simple stepper motors. It maybe just a little more Pushpullpower on the table but we can drive almost 3 times the speed with this setup.
@@3DMeister can you just take lighter passes to get around the limitations of the spindle power output, like if you were to cut steel or titanium with this?
@@jacobbrutonbrauer7851 Yes ! just less material per time and more/smaller cuts so less tool life. Its a balance act, the spindle is very weak under 3000 rpm but steel is better cut slowly and heavy. We did high speed cutting for finishing our timing belt wheel-cut-outs.It worked. See more on Instagram - 3dmeister.
Why a timming belt? The motor is not strong enough tô direct drive?
Yes StepperMotors are Not fast enough and with the best performance at about 600 rpm and power dropping fast at higher rpm. We have 5mm inclination per round on the screws; with the old direct steppers (3NM) we had 3000mm/min speed, But we can now reach almost 9000mm/min with 12NM (CL) Stepper motors.
@@3DMeister if a use hybrid stepper (servo) maybe i can get more torque and speed without belt?
@@gustavotavares5233 Yes, servos can be much faster without losing much torque at high rpm. Not like our Closed Loop Stepper. I don't know about hybrid stepper but I think they are closed loop stepper? Just safer than only stepper m.
Welcher Hersteller und Größe ist verbaut ?
NEMA34 bei RATTM Motor
Neat
how much money use total plz
Material was about 5000€ for the machine but without the stainless steel housing/stand
- Einfach TOLL -
(20.01.2021)
Ein bisschen Kommentar wäre nicht schlecht...und wenn es nur Untertitel sind...
ok, danke
Nm. *N*m!!!
Плохое решение!
Everything works fine .. what do you don't like?
Speed from 3m/min to 8m/min.
Accuracy is still fine for my application.