584,808 active members*
5,235 visitors online*
Register for free
Login

Search:

Type: Posts; User: Rimbaldo

Page 1 of 3 1 2 3

Search: Search took 0.01 seconds.

  1. Re: Strange effect caused by my lathe’s new BLDC spindle motor. Maybe EMI?

    I have a 48V Switching power supply that powers the Gecko G540, the ESS smoothStepper, and the encoder (through some DC-DC buck converters, to get 5V to the ESS and the encoder and some leds on the...
  2. Re: Strange effect caused by my lathe’s new BLDC spindle motor. Maybe EMI?

    Ok. Grounded PC (wasn't grounded) to lathe bed (wasn't grounded) to controllers. Grounded everything.

    Seems to have improved a bit, but still the same effects happen. Touching the bed with my...
  3. Re: Strange effect caused by my lathe’s new BLDC spindle motor. Maybe EMI?

    Indeed! All the effects I described happen when I open the notepad and keep some keys pressed, with the motor turned on. The effects are more or less obvious depending on the speed set. Even If I...
  4. Strange effect caused by my lathe’s new BLDC spindle motor. Maybe EMI?

    Hi!
    I replaced the original brushed 150W motor of my mini lathe with a BLDC 750W one. I managed to replace all electronics inside the lathe so speed controller works normally, reverse, and even I...
  5. Vertical pattern when turning on CNC converted mini lathe.. can anyone help?

    Hi!

    I've converted a micro lathe (SIEG C1) to CNC. Originally I had two 6mm micro ballscrews on Z and X.

    Recently I adapted a 10mm (2mm pitch) ball screw with double nut (back to back) on the Z...
  6. Re: Some ideas to Back to back double ball nut (no flange type) for my lathe.. possib

    HI! It took a long time to make my setup real, but I'd like to share some info and ask for more help...

    My initial setup with only one flange, with two screw-type ballnuts on either side of the...
  7. Ball nut sleeve dimensions for a 1002 ballnut/screw?

    Hi! I need help!


    I need to remove the 1002 nut from the screw. (10mm diameter, 1.2mm diameter of each ball, 2mm pitch). I cant find info on the exact outer diameter of a sleeve to remove a nut...
  8. Re: Some ideas to Back to back double ball nut (no flange type) for my lathe.. possib

    Hi Jim!

    I've been thinking.. the set screws design would prevent the nut from .. screwing in the screw, but only the glue would prevent it from screwing out, right?

    What do you think of this...
  9. Do double ballnut diy setup increases Dynamic and Static Rating load?

    Hi!

    If I do a double ballnut setup (using two single ballnuts) , back to back, does it changes the dynamic and static load properties of a single ballnut/ballscrew system?

    What happens...
  10. Re: Some ideas to Back to back double ball nut (no flange type) for my lathe.. possib

    Ok, thanks Jim!

    What do you think about this new design? Two long (20mm) M2.5mm setscrews that I can adjust from both sides of the fixed nut that push the other nut on the other side.

    Would it...
  11. Re: Some ideas to Back to back double ball nut (no flange type) for my lathe.. possib

    Thanks Jim!

    But I'm having a hard time to ..visualize that in practice in my case......

    As the nut housing will be the same diameter (or just 1mm bigger than) of the outer diameter of the nut, ...
  12. Some ideas to Back to back double ball nut (no flange type) for my lathe.. possible?

    Hi!

    I'm converting my mini lathe to a bigger (but still small - 10mm diameter) ballscrew lead screw.

    I want to have a double nut back to back configuration for reducing backlash. I've searched...
  13. Yes, but with a multimeter I can see no visible...

    Yes, but with a multimeter I can see no visible change at all in the voltage, or it’s resistance. But if I connect it directly to the tachometer it works, so it’s not broken..

    How (and what)...
  14. Re: Problems on installing rotary encoder on Gecko G540

    The problem is, even without connecting to the gecko, I can't see a on/off pattern on the output of the optocoupler, when measuring with the multimeter. I can see this pattern when connecting the...
  15. I just read the manual. It says: Input Frequency:...

    I just read the manual. It says: Input Frequency: Min: 0, Max: 200 Khz...

    But the hall sensor and tachometer and gecko’s input shows normally the RPM from 0 to the max the lathe’s motor gets, at...
  16. This one is 500 lines/revolution... but even the...

    This one is 500 lines/revolution... but even the index signal, which is 1/rev doesn’t work properly...
  17. Problems on installing rotary encoder on Gecko G540

    https://www.cnczone.com/forums/attachment.php?attachmentid=443066&stc=1Hi!


    Can anyone that understand electronics help me?


    I have a hall sensor as an index on my lathe’s spindle. I have the...
  18. Re: Need brushless motor model for lathe spindle advice. Is this enough?

    The driver I guess is not an Inverter. I´ll post the manual attached if possible.

    My lathe´s 150W motor is rated at 4.000 RPM, but in the original pulley there´s a reduction so it runs at 2000...
  19. Need brushless motor model for lathe spindle advice. Is this enough?

    Hi!

    I own a micro lathe converted to CNC and working fine, except it lacks torque when parting-off and threading deeper threads. (when the pitch gets close to 1.5mm). I already have a index pulse...
  20. Need help on pulley type upgrade on my micro-lathe

    Hi!

    I’ve got a Sieg C1 micro-lathe converted to CNC already.

    I do already have an index on my spindle and PWM control of it’s speed.
    As my motor is 150W, and the original pulley relation is...
  21. Ok, got it!! Thanks! So for threading a low...

    Ok, got it!!

    Thanks!

    So for threading a low speed/high torque pulley setup would be as important..

    Rodrigo
  22. Thanks Craig! I do have an individual spindle...

    Thanks Craig!

    I do have an individual spindle index sensor based on a Hall sensor.

    So you’re saying that, even if I use an encoder on the spindle to get more steps from each revolution of the...
  23. Smoothstepper encoder setup with index out of encoder?

    Hi!

    I have a hall sensor as a 1 pulse/ rev index for spindle feedback and threading on my mini lathe, using mach3 and a parallel port. And a Gecko G540 as a BOB.

    I just bought an ESS (didn’t...
  24. Replies
    3
    Views
    2,017

    G52 offsets not shown in mach3 screen

    Hi! I’m still learning gcode and cnc and I’m using Mach3 wizards for my small jobs.

    I’m doing a series of grooves in a part, and I edited a wizard generated code, aleays in the same X dimensions,...
  25. Thanks a lot for all your detailed explanations....

    Thanks a lot for all your detailed explanations. I got it all now. I’ll leave it this way then. Won’t mess with the spindle anymore. Don’t know if changing the stock bearings to these was a good...
  26. Hi, thanks for all your answers. I decided to get...

    Hi, thanks for all your answers. I decided to get a brake disk then, and it turned to be so much easier to tram x and y with the disk and an indicator mounted on the spindle.

    So I put the disk...
  27. So I’ll have to live with that this way. At lower...

    So I’ll have to live with that this way. At lower RPMs, it runs silent and cool. Will this stiffness decrease over time with use?

    I mounted the bearings this way in the picture attached: inner...
  28. Understood. That’s why big a big diameter fly...

    Understood. That’s why big a big diameter fly cutter shows in it’s cut any misalignments.

    I’ll check again the gibs and the spindle/collumn alignment...

    Thanks!!
  29. Hi Kenny! Thanks! I didn’t understand very...

    Hi Kenny! Thanks!

    I didn’t understand very well the first thing you wrote:

    My indicator measures up to 0.01mm. I don’t have one that goes to 0.001mm. Is this precision needed?

    When you...
  30. Tram of my mini mill and flycutting. What am I missing?

    Hi!

    I’ve just trammed my Sieg X2 cnc converted mill.

    I’ve first removed the collumn and trammed the head to the collumn the best I could, by using the rollie’s dad method.

    I then did the...
Results 1 to 30 of 68
Page 1 of 3 1 2 3