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Type: Posts; User: Streetslab

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  1. Re: need to improve speed (linuxcnc - 2 motors on x axis)

    Thanks Ger. Will check my settings on the drivers. Not sure how much microstepping i'm using atm as i've set up the machine time ago.
    Then will give it a try with pulleys.
  2. Re: need to improve speed (linuxcnc - 2 motors on x axis)

    Ok thank you.
    I'm good at coding but no time to invest in studying trickeries to make a new device work on Linux CNC.
    As a first thing I think i will just give it a go with pulleys and timing belts...
  3. Re: need to improve speed (linuxcnc - 2 motors on x axis)

    Thanks a lot Ger.
    I think i can still squeeze out that torque from my nema 34s at 300/400 rpm, so maybe just the different leadscrews should work.

    What about multiplying that with pulleys and...
  4. Re: need to improve speed (linuxcnc - 2 motors on x axis)

    Thanks pippin. It's 4mm/rev pitch. Do you reckon the 5i25 would be a good improvement by itself? That would save me 130 bucks.
  5. Re: need to improve speed (linuxcnc - 2 motors on x axis)

    I see, but i would be ok with the speed that i can achieve on the 1 motor axises.

    I cannot get anywhere close to that in the x axis with 2 motors. Plus given the higher torque, i'm on direct...
  6. need to improve speed (linuxcnc - 2 motors on x axis)

    Hi All, Here's my machine:
    https://www.youtube.com/watch?v=gah16sUS510

    Since this video i've added a table with clamping nuts and some clamps, and a betterdust collecting system.
    It's based on...
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    Machine improvement

    Hi Everyone,
    I apologize before for the lenghty post, but wanted to include all the possible info.
    I have a routing table with 4 Nema 34 motors with double shaft, 4 DM860A drivers, and the simple...
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    Re: Slow speeds with Longs motor kit

    Hi Wend. Thanks. That is exactly how my setup is working. Now i'm wiring some microswitches for the limits and changing the skates bearings enclosed in some pieces of corrugated tube with hose clamps...
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    Re: Slow speeds with Longs motor kit

    Hi James, thanks for your bit of advice as well. I saw that Gerry is present in a lot of 3ds and very helpful and knowledgeable.
    A thing that you wrote lighted a bulb in my head. When you say:" feed...
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    Re: Slow speeds with Longs motor kit

    Now it's 100% clear. I will also update my drivers / steppers combination then.

    Thanks a lot.
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    Re: Huanyang Chinese VFD settings and manual here!

    Hello everybody. Great stuff here. My spindle now rotates at 24000rpm with these settings. But it does it only with the onboard keys controls. My inverter has an onboard pot which if i set PD002 to 1...
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    Re: Slow speeds with Longs motor kit

    Thanks Gerry.
    One thing.
    How a smaller motor with less torque, can be more efficient than a bigger one?
    Do they have a different torque curve?
    My understanding is that stepper motors will give...
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    2,968

    Re: Slow speeds with Longs motor kit

    Oh my...
    Well, the price to pay for lack of experience. I like my big and powerful motors though, i think it's mainly a problem of leadscrew pitch, which i will eventually upgrade after i have...
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    Re: USB-based, linux-compatible controllers for Sherline conversion?

    I'm pretty sure i can. I was filming a solution i'm trying for a dirt cheap cable management solution (scrap used cleaned bike chains get for zero bucks on a bike store) I was able to run the whole Y...
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    Re: USB-based, linux-compatible controllers for Sherline conversion?

    Sorry for not having specified. It's 20mm diameter. The motor's shaft is 14mm. Found some nice 14 to 20 couplers on aliexpress.
    The travel is 4mm per turn.
  16. Replies
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    Re: USB-based, linux-compatible controllers for Sherline conversion?

    Hi Alan. Thanks for the answer. Here's the label of one of my motors. Cannot really get the number you asked.
    275824
    Unfortunately i was in doubt on the size and motor type, so i went for the big...
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    Slow speeds with Longs motor kit

    I have built a big CNC machine with 4 Nema 34 motors. It's 1.70 meters per 1.50, and the gantry is moving via 2 synchronized motors. All running via Linux CNC.
    It's a Longs Motor Kit with DM860A on...
  18. Re: Longs Motor NEMA 34 1600 oz in kit. Drivers Dead?

    Hey guys. Sorry that i've suddenly "dead" like that.
    I've been through a lot, including modifying my garden so i can build a shed to use as a lab, big enaugh to fit my machine.
    Also solved the...
  19. Well. That says a lot. I consider the breakout...

    Well. That says a lot. I consider the breakout board purchased on the kit, the less expensive component of the kit himself.
    So i already knew before buying that i may have to upgrade it. First i...
  20. Thanks Doorknob for your suggestion. This is...

    Thanks Doorknob for your suggestion. This is actually my first build. I saw a lot of other people using this solution. Would you please explain to me in what measure the signal can be degradated and...
  21. Longs Motor NEMA 34 1600 oz in kit. Drivers Dead?

    Hello everybody. I really need help before the 30 days from receiving period expires.
    I bought this kit:
    4x NEMA 34, 1600 oz in plus power units, drivers and breakout board.
    I wanted to test...
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    Sticky: Hi everybody. I'm in the process of building my...

    Hi everybody. I'm in the process of building my 1st CNC router and i couldn't miss the main reference point for CNC enthusiasts.
    :wave:
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