Water Pump causing all sorts of problems. - Page 2


Page 2 of 3 FirstFirst 123 LastLast
Results 13 to 24 of 32

Thread: Water Pump causing all sorts of problems.

  1. #13
    *Registered User* KTMKenny's Avatar
    Join Date
    Dec 2018
    Posts
    16
    Downloads
    0
    Uploads
    0

    Default

    I have ordered some .75mm screened 4 core wire to replace the spindle wire. What size would you recommend for the steppers. Might as well do the lot.



  2. #14
    Gold Member
    Join Date
    Jan 2005
    Location
    USA
    Posts
    8766
    Downloads
    0
    Uploads
    0

    Default Re: Water Pump causing all sorts of problems.

    Quote Originally Posted by KTMKenny View Post
    I have ordered some .75mm screened 4 core wire to replace the spindle wire. What size would you recommend for the steppers. Might as well do the lot.
    Did you run it without the spindle turned on and did it do the same thing, if it did then that would eliminate the spindle wiring even though I don't see a Ground wire going to your spindle

    One thing to check is if your spindle has a 4 pin plug if it has check with a meter the continuity between the 4th pin ( Ground pin ) and the spindle body, most of these spindles do not have a Ground connected and this needs to be corrected

    Mactec54


  3. #15
    *Registered User* KTMKenny's Avatar
    Join Date
    Dec 2018
    Posts
    16
    Downloads
    0
    Uploads
    0

    Default

    I have just run it for 30 mins. Put m43 on the end
    Same pocket toolpath. No spindle.
    I lost about .4mm on the X. Y perfect. Must be the spindle.
    I tested the Earth on the spindle with a meter. Strange result. It is getting to earth, but there is resistance also. I think it's earthing thought the linier bearings. Only 3 wires connected in the plug. But has 4 pins in the plug



  4. #16
    Registered Sterob's Avatar
    Join Date
    Jan 2007
    Location
    Australia
    Posts
    224
    Downloads
    0
    Uploads
    0

    Default Re: Water Pump causing all sorts of problems.

    Quote Originally Posted by mactec54 View Post
    What do you have the in motor tuning settings for Velocity and acceleration lower these numbers and try it

    The hand wheel on the back of the motor does not matter if it wobbles, the motor shaft it not,can't see the wobble in the ballscrew, but if it is then yes it could cause jamming, if the gantry has tight spots then it sounds like you need to realign the rails so they are parallel to each other, and then align ballscrew to the rails, this is quite common for these machines to need adjustments when you get them

    I don't think sending it back would be an option as it most likely will cost near as much as the machine is worth
    Agree with Mactec.
    Its hard to judge when there's a problem without seeing it before. It can be subtle.
    Turning the motors by hand will feel 'notchy' but 'smooth' If you feel any 'drag' its not good.
    Sorry...hard to describe.
    Once you feel a difference between 2 axis, you will notice the problem.
    Its best to give the steppers a fighting chance to do their job and not be handicapped with mechanical issues.

    Ballscrews and Ball Nuts:
    Water Pump causing all sorts of problems.-ballscrew-jpg

    Its common for chinese machines to need 'mechanically tuning'. I guess they are just slapped together in the factory.
    Mine even had paper shims!

    Somethine else I thought of....Run a job and check the CPU load and and memory usage in Windows. Make sure you are not running right on the limits....
    How much ram have you got? 4Gig seems fine....8 Gig will be more comfortable.



  5. #17
    *Registered User* KTMKenny's Avatar
    Join Date
    Dec 2018
    Posts
    16
    Downloads
    0
    Uploads
    0

    Default

    I took the back of the X axis gantry. In honestly can't find any mechanical resistance. The steppers turn smooth. If i turns them quick by hand, they stutter. But I think this is also normal. CPU usage at 16% through out the whole toolpath. I'm thinking of biteting the bullet and getting a new controller. I think I may be able to negotiate a part refund through eBay buyer protection. What do buy that is affordable is the next question.



  6. #18
    Gold Member
    Join Date
    Jan 2005
    Location
    USA
    Posts
    8766
    Downloads
    0
    Uploads
    0

    Default Re: Water Pump causing all sorts of problems.

    Quote Originally Posted by KTMKenny View Post
    I have just run it for 30 mins. Put m43 on the end
    Same pocket toolpath. No spindle.
    I lost about .4mm on the X. Y perfect. Must be the spindle.
    I tested the Earth on the spindle with a meter. Strange result. It is getting to earth, but there is resistance also. I think it's earthing thought the linier bearings. Only 3 wires connected in the plug. But has 4 pins in the plug
    So when you get your shielded cable you will be able to connect the Ground Pin in the plug, did you use the ringer to check the continuity you need to do it by this method , 4th pin to the spindle body

    This is what you have to do with most spindles from China as the don't have the Ground connected in the spindle plug

    What is the M43 for, you may be having some problem with your programing as well post the program you are using also an M43 is not used for one of these type of machines

    Attached Thumbnails Attached Thumbnails Water Pump causing all sorts of problems.-ground-wire-2-jpg  
    Mactec54


  7. #19
    *Registered User* KTMKenny's Avatar
    Join Date
    Dec 2018
    Posts
    16
    Downloads
    0
    Uploads
    0

    Default

    Quote Originally Posted by mactec54 View Post
    So when you get your shielded cable you will be able to connect the Ground Pin in the plug, did you use the ringer to check the continuity you need to do it by this method , 4th pin to the spindle body

    This is what you have to do with most spindles from China as the don't have the Ground connected in the spindle plug

    What is the M43 for, you may be having some problem with your programing as well post the program you are using also an M43 is not used for one of these type of machines
    M43 replaced m30 at the end of a program. It prompts the cycle to restart. So I have it going continuously repeating. I did this without the spindle activated . Problem still exists.
    I earthed the clamp of the spindle which should do the same thing as connecting to a terminal. For now.
    Trying to fix a brand new machine is very testing. But I guess I was warned about Chinese machines.



  8. #20
    Gold Member
    Join Date
    Jan 2005
    Location
    USA
    Posts
    8766
    Downloads
    0
    Uploads
    0

    Default Re: Water Pump causing all sorts of problems.

    Quote Originally Posted by KTMKenny View Post
    M43 replaced m30 at the end of a program. It prompts the cycle to restart. So I have it going continuously repeating. I did this without the spindle activated . Problem still exists.
    I earthed the clamp of the spindle which should do the same thing as connecting to a terminal. For now.
    Trying to fix a brand new machine is very testing. But I guess I was warned about Chinese machines.
    If there is any noise adding a Ground wire won't help at all, it would work as an antenna and could create the worse problem, most of these machines don't have a noise problem, so I'm wondering why yours is, they usually have chokes on the cables to help with any noise

    What other wiring have you done or changed

    Mactec54


  9. #21
    *Registered User* KTMKenny's Avatar
    Join Date
    Dec 2018
    Posts
    16
    Downloads
    0
    Uploads
    0

    Default

    Quote Originally Posted by mactec54 View Post
    If there is any noise adding a Ground wire won't help at all, it would work as an antenna and could create the worse problem, most of these machines don't have a noise problem, so I'm wondering why yours is, they usually have chokes on the cables to help with any noise

    What other wiring have you done or changed
    Nothing. I wonder if the foil insulation in my shed has anything to do with it. If it is noise .



  10. #22
    Registered Sterob's Avatar
    Join Date
    Jan 2007
    Location
    Australia
    Posts
    224
    Downloads
    0
    Uploads
    0

    Default Re: Water Pump causing all sorts of problems.

    Quote Originally Posted by KTMKenny View Post
    I took the back of the X axis gantry. In honestly can't find any mechanical resistance. The steppers turn smooth. If i turns them quick by hand, they stutter. But I think this is also normal. CPU usage at 16% through out the whole toolpath. I'm thinking of biteting the bullet and getting a new controller. I think I may be able to negotiate a part refund through eBay buyer protection. What do buy that is affordable is the next question.
    Sounds good. A magnetic Stutter is ok...a mechanical stutter is not.
    CPU usage is excellent....What about RAM? How much have you got?

    You are right ...Its very frustrating , especially when you are learning.

    What Controller do you have? What size DC power supply do you have?



  11. #23
    *Registered User* KTMKenny's Avatar
    Join Date
    Dec 2018
    Posts
    16
    Downloads
    0
    Uploads
    0

    Default

    Just checked. 1.2gb of ram.
    Today I dragged it out to the garden and plugged it into another circuit in the house. Just in case the foil insulation in my shed was causing it. But no. Still the same. Ahhhhhhhhhhhh. Seller on eBay is being helpful, and I did find movement in the gantry bearings. But would that explain and incremental wandering of the zero over 5mm on 5 cycles? It seems to go further each time
    https://youtu.be/RE2iNiMXSHE



  12. #24
    Registered
    Join Date
    Jun 2017
    Location
    Australia
    Posts
    705
    Downloads
    0
    Uploads
    0

    Default Re: Water Pump causing all sorts of problems.

    Have you tried running the machine without the spindle powered up....? You can run a program above the work space without the spindle powered up to see if your problem remains



Page 2 of 3 FirstFirst 123 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

Water Pump causing all sorts of problems.

Water Pump causing all sorts of problems.