Welcome to Our Community

Some features disabled for guests. Register Today.

Sign Up

Replacing stepper motors with more powerful ones. LEAD 1010

Discussion in 'CNC Lathes' started by MAFFPL, Jul 11, 2023.

Thread Status:
Not open for further replies.
  1. MAFFPL

    MAFFPL New
    Builder

    Joined:
    Sep 27, 2021
    Messages:
    60
    Likes Received:
    3
    #1 MAFFPL, Jul 11, 2023
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    14,701
    Likes Received:
    4,249
    They have higher inductance so will lose some top end speed. They will work but our High Torque motors would be better

    Why do you need stronger motors though?
     
    #2 Peter Van Der Walt, Jul 12, 2023
  3. MAFFPL

    MAFFPL New
    Builder

    Joined:
    Sep 27, 2021
    Messages:
    60
    Likes Received:
    3
    I am building a machine on which a Co2 laser will eventually be used. However, I do not exclude that someday it can be used for milling. So what motors would you recommend, of course at a reasonable price?
     
    #3 MAFFPL, Jul 12, 2023
  4. MAFFPL

    MAFFPL New
    Builder

    Joined:
    Sep 27, 2021
    Messages:
    60
    Likes Received:
    3
    By the way, do you think this product will be suitable for my project?

    Dimensions:
    Length: 1040mm
    Diameter: 8mm
    Thread pitch: 2mm
    Lead (movement distance after 1 revolution): 8 mm
     
    #4 MAFFPL, Jul 12, 2023
  5. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    14,701
    Likes Received:
    4,249
    For a laser you want to focus on low inductance and low coil voltage (high inductance is self-braking, and higher coil voltage limits acceleration). Lasers like fast. Ideally belt drive to keep up.

    I would recommend ours. Not for any other reason that the specifically custom made electrical specs. Hard to find ones that beat ours.
     
    #5 Peter Van Der Walt, Jul 12, 2023
  6. MAFFPL

    MAFFPL New
    Builder

    Joined:
    Sep 27, 2021
    Messages:
    60
    Likes Received:
    3

    What motors would you recommend? preferably dimensionally up to nema 23
     
    #6 MAFFPL, Jul 12, 2023
  7. MAFFPL

    MAFFPL New
    Builder

    Joined:
    Sep 27, 2021
    Messages:
    60
    Likes Received:
    3
    Maybe you have knowledge and would like to share it. We have a 24V DC power supply. The 57HS3230 has a voltage of 3V and the MT-2303HS280AW has a command between 12 and 24V. I have MT-2303HS280AW motors in my Lead1515 and they work fine. However, 57HS3230, I also saw it connected to the power supply and it also worked. How does it all work? If I bought a 57HS3230 with a voltage of 3V, after connecting it to the DV 12-24V power supply, the motor could burn? be overloaded? I don't really understand the idea behind this action.
     
    #7 MAFFPL, Jul 12, 2023
  8. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    14,701
    Likes Received:
    4,249
    Steppers are constant current devices. Their coils are constant resistance, thus the voltage varies to make ohms law true. That's the stepper drivers job. The 24v input is chopped to +-3v (but as its not DC its way more complicated than that, its actually a stepped pseudo sine wave made by a chopper algorithm) but for your purpose think of it as a stepdown that uses higher input voltage to overcome inductance. If you used a 3v supply you'd have terrible slow rise times
     
    #8 Peter Van Der Walt, Jul 12, 2023
    Rob Taylor likes this.
  9. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    14,701
    Likes Received:
    4,249
    #9 Peter Van Der Walt, Jul 12, 2023
  10. MAFFPL

    MAFFPL New
    Builder

    Joined:
    Sep 27, 2021
    Messages:
    60
    Likes Received:
    3
    I'm already lost :( so it's worth taking the 57HS3230?
     
    #10 MAFFPL, Jul 12, 2023
  11. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    14,701
    Likes Received:
    4,249
    Order from OpensPartstore. If you want something proven. Its better (low inductance)
     
    #11 Peter Van Der Walt, Jul 12, 2023
  12. MAFFPL

    MAFFPL New
    Builder

    Joined:
    Sep 27, 2021
    Messages:
    60
    Likes Received:
    3
    Ten engines were selected. I don't think there are many Nm. Will these trapezoidal screws be suitable? I can and buy from you, the most important thing for me is that they are compatible.

    NEMA 23 Stepper Motor
     
    #12 MAFFPL, Jul 12, 2023
  13. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    14,701
    Likes Received:
    4,249
    NEMA 23 Stepper Motor is the regular (fine for a LEAD, included by default), with NEMA 23 Stepper Motor - High Torque Series as the upgrade too it (slower but stronger - more useful for router machines with a heavy spindle)


    Use these 8mm Metric Acme Lead Screw - quality screws = less whip, less backlash, more precision along the length (no variations in pitch), and a well formed thread pitch. Ours are also custom made per our specs, just like the motors. Slightly undersized on purpose to allow for a better fit with the nutblocks: Nut Block for 8mm Metric Acme Lead Screw x 2 per carriage on a standard LEAD machine. 3rd party screws won't fit out nuts as well
     
    #13 Peter Van Der Walt, Jul 12, 2023
  14. MAFFPL

    MAFFPL New
    Builder

    Joined:
    Sep 27, 2021
    Messages:
    60
    Likes Received:
    3
    The x-axis will look like the photo, instead of the rollers there will be a mgn12 linear guide with mgn12c carriages. Plus that 175 oz*in motor and Acme T8 prop. Do you think this is a good laser kit? the y axis will be the same as in the picture.
     

    Attached Files:

    #14 MAFFPL, Jul 12, 2023
  15. MAFFPL

    MAFFPL New
    Builder

    Joined:
    Sep 27, 2021
    Messages:
    60
    Likes Received:
    3
    Alternatively, I'm wondering how to apply the strip to the c-beam profile.
     
    #15 MAFFPL, Jul 12, 2023
  16. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    14,701
    Likes Received:
    4,249
    Personally, I wouldn't use leadscrews for a CO2 laser, you need speed. Typically belts... See Lasers category LASER - PLASMA BUILDS | OpenBuilds of our Builds section
     
    #16 Peter Van Der Walt, Jul 12, 2023
  17. MAFFPL

    MAFFPL New
    Builder

    Joined:
    Sep 27, 2021
    Messages:
    60
    Likes Received:
    3
    Peter, what do you think about this project? i also saw that lead 1515 and workbee 1010 are used in opt lasers. Did you mean that trapezoidal screws are not only suitable for co2?

    (Smaug) 100w 1500x1000mm CNC Laser
     
    #17 MAFFPL, Jul 12, 2023
  18. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    14,701
    Likes Received:
    4,249
    Yes, but those are diodes...

    Not the same thing now is it? Diodes are around 5-6w. Co2 could be anything from 40w to 150w

    I ask questions, you provide info, and I taylor my replies from there onward to apply to your needs yes. You said CO2, so I said

    and then later down had to repeat. (In which I reinforced that the statement applies to CO2 lasers)

    If its a CO2 laser, I think you have a bit more homework and research ahead of you before you start ordering parts. CO2 Lasers comes with lots of challenges. Speed, flying optics, mechanically linked dual Y drives (can't count on two motors as the flying optics needs perfect squareness), dangers in terms of blindness and electrocution (very real dangers). You honestly do sound in over your head, so take a while and read up some more please
     
    #18 Peter Van Der Walt, Jul 12, 2023
  19. MAFFPL

    MAFFPL New
    Builder

    Joined:
    Sep 27, 2021
    Messages:
    60
    Likes Received:
    3
    I can see you're losing your patience. Pity. One learns every day. Well, thank you for your help. I disappear.
     
    #19 MAFFPL, Jul 12, 2023
  20. Christian James

    Christian James Journeyman
    Builder

    Joined:
    Jun 8, 2018
    Messages:
    453
    Likes Received:
    218
    Well, that's the problem MAFFPL, you are not learning every day. To get to where you need to be, you need plenty of research, reading and studying - that's what I had to do and I'm an Electro/ mechanical engineer! Peter's advice if for your own safety as much as anything else.
     
    #20 Christian James, Jul 12, 2023
    David the swarfer likes this.
  21. Rick 2.0

    Rick 2.0 OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Dec 20, 2013
    Messages:
    2,889
    Likes Received:
    1,545
    To use a simple analogy, comparing a CO2 laser to a CNC machine is like comparing a racehorse to a plow ox. One needs to be fast and light and the other, slow and muscular. So taking a muscular system and making it even more muscular serves no purpose when the goal for a CO2 laser is fast and light.
     
    #21 Rick 2.0, Jul 12, 2023
    Peter Van Der Walt likes this.
  22. MAFFPL

    MAFFPL New
    Builder

    Joined:
    Sep 27, 2021
    Messages:
    60
    Likes Received:
    3
    It took me a while to think about what to reply to you.

    "Well, that's the problem of MAFFPL, you are not learning every day."

    You don't know what I do and you don't know how much time and willingness I spend on it. As far as I know, the discussion forum is there to learn from and LEARN EVERY DAY.

    "To get to where you need to be, you need plenty of research, reading and studying - that's what I had to do and I'm an Electro/mechanical engineer!"

    Cool! Referring to the previous sentences, you do not know what I do and how much time it takes me. I don't care who you are or how you came to this. I am interested in the knowledge that I am supplementing and you really have nothing to do with it.

    " Peter's advice if for your own safety as much as anything else."

    Peter is a very educated person who willingly shares his knowledge and that's great! Great respect for him.

    You don't have to worry about my safety because maybe you are an Electro/Mechanical Engineer and you may be surprised how many levels I am higher than you in matters of security and cybersecurity.

    What is it, what are these times when a man wants to do something interesting with passion and a moment later hits hate. You can write private messages to someone else.

    Finally, if you don't have anything interesting to say, which I can see you don't, just don't write. Easy.
     
    #22 MAFFPL, Jul 13, 2023
  23. MAFFPL

    MAFFPL New
    Builder

    Joined:
    Sep 27, 2021
    Messages:
    60
    Likes Received:
    3
    Thanks for the comparison. Peter just mentioned speed. If you have any valuable advice on CO2, I'd love to hear it.
     
    #23 MAFFPL, Jul 13, 2023
  24. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    14,701
    Likes Received:
    4,249
    #24 Peter Van Der Walt, Jul 13, 2023
Thread Status:
Not open for further replies.

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Accept Learn More...
    Dismiss Notice