The Real Servo Motors

Bambu Lab H2 Series
23

Per ChatGPT:

The gear in the image appears to have helical teeth, rather than straight-cut teeth. This design has several advantages over traditional straight-toothed gears, especially in servo motors and precision applications:

Advantages of Helical Gears Over Straight Gears:

  1. Smoother Operation

    • Helical gears engage gradually, unlike straight gears, which engage suddenly. This reduces noise and vibration.

  2. Higher Load Capacity

    • Because multiple teeth are in contact at any given time, helical gears can handle higher loads compared to straight gears of the same size.

  3. Better Efficiency and Durability

    • The gradual engagement reduces shock loads, leading to less wear and a longer lifespan.

  4. Reduced Backlash

    • In servo applications, precision is critical. Helical gears help minimize backlash (small unwanted movements due to gaps between teeth), leading to more accurate positioning.

Applications That Benefit from Helical Gears in Servo Motors:

  • Robotics: Smooth and precise motion control for robotic arms and automated machinery.
  • CNC Machines: Accurate positioning of tool heads for precision cutting.
  • Automated Conveyor Systems: Reduced noise and improved efficiency in material handling.
  • 3D Printers: Improved stepper motor accuracy and smoother motion.
  • Camera Gimbals & Actuators: Reduced vibration for stable movement.

Would you like a deeper analysis on specific applications?

24

Efficency is a comment that stuck out for me

25

Ahh, that looks like a CNC mill bit. Laser module, CNC mill module, oh so its going to have quick change modules to do different types of manufacturing?

26

So basically a souped up microwave motor with closed loop feedback? Nice! :slight_smile:

27

Nice, I like these uses of ChatGPT :clap:

28

I’ve been saying this for three days:

I will note that they call it a “cutter” and not a “CNC,” which makes me think it’s a more powerful laser or a cricut-type blade.

29

I mean, it makes sense to have a servo motor for the CNC end. I just hope the H2D is customizable during checkout. It’s cool to have those types of options, but I am strictly geared towards additive manufacturing.

30

yeah it gives more torque :slight_smile: and my guess is the motor can be lighter as there is less metal in it and using less amps as well :slight_smile:

31

It is the filament drive motor. You can see the rectangular shape of the back cap of the motor on the upper side of the image released yesterday. You can also see a huge helical gear that the output shaft of the servo motor will mesh into.

32

@Logan_Makes

The big spiral cut bevel gear? please make a drawing so we can see. Im interested. Maybe draw an arrow on a pic for us. Not the one on the servo motor, but the one it mates to

33

may it be like the a1 series exuruder gear

34

i am working on an 5-axis mill and trust me when i say, a mill needs stability.
milling with this thing called H2D-printer would never be funny.
and please think about the chips/dirt in the machine. no way.

35

Yep. Looks like it engages the filament drive gear. Look on the back of the center pulley on the first reveal images. It has a large helical gear. Helical likely for accuracy/engagement

36

I cant upload images - but on the extruder ‘xray’ image, look at the center pulley that has the cutouts at 12, 3, 6, 9 oclock - follow that all the way to the very back and you’ll see a large helical gear poking out

37

helical for more torque as this is only .5 a

38

oh these are veryyyyyyy energy efficient 2.4 volts 0.5v DC per motor

39

Or exremely tiny :wink: maybe

I think they are 24 volt. Now that i see that, it probably is extruder motor. Man, what powers the lifting of the nozzles then.

That is super efficient

40

maybe idk

41

if it is powering the entire x or y

42

probably best strategy is to look for them in the first teaser - i reckon its extreder lifting