Hello Guest it is November 16, 2019, 06:32:35 PM

Author Topic: converting a chinese 6040  (Read 2525 times)

0 Members and 1 Guest are viewing this topic.

converting a chinese 6040
« on: May 17, 2016, 03:05:45 PM »
slowly busy converting my chinese 6040 to pokeys.

received my stepper drivers today and build a quick mock-up on a piece of MDF, running each stepper at 2.5A, so each has their own fan.



The machine already sounds better, so far very happy with this  ;D

Two things I have noticed though, I now and again get a "buzz" from the motors when not moving. not always, if it buzzes and I tap the jog key, it stops.

Also, when I click "Go to Zero", they stop at X0.0031 Y0.0031 for example. Not always though, sometimes a different number, does not go to exactly 0.0000 ? Anyone else seen this ?

Anyway, so far very happy .. and also very quick shipping from the guys at Polabs, both orders pretty much arrived the next day almost !! Happy chappy !

Offline NeoTO

*
  •  504 504
    • View Profile
    • PoLabs
Re: converting a chinese 6040
« Reply #1 on: May 17, 2016, 03:31:49 PM »
Regarding the inaccurate 'home' position - what are you steps per unit settings? These may result in partial step that can not be executed by the device.
www.poscope.com home of PoKeys USB HID, IO, USB, Ethernet controler and PoScope USB PC oscilloscope
Re: converting a chinese 6040
« Reply #2 on: May 17, 2016, 03:37:17 PM »
Regarding the inaccurate 'home' position - what are you steps per unit settings? These may result in partial step that can not be executed by the device.

steps per unit is 320. 1/8 with 1605 ballscrew, 5mm pitch, so if my calculations are correct, 1600 / 5 is 320 steps per mm ?

Offline NeoTO

*
  •  504 504
    • View Profile
    • PoLabs
Re: converting a chinese 6040
« Reply #3 on: May 17, 2016, 03:49:11 PM »
Then,  X0.0031 Y0.0031 is one step in X and Y. This may be due to a rounding error in Mach3.
www.poscope.com home of PoKeys USB HID, IO, USB, Ethernet controler and PoScope USB PC oscilloscope
Re: converting a chinese 6040
« Reply #4 on: May 17, 2016, 04:16:27 PM »
Then,  X0.0031 Y0.0031 is one step in X and Y. This may be due to a rounding error in Mach3.

yes, might be. doesn't always happen, sometimes it goes to 0.0000 and other times not. can you only use mach3 with pokeys or are there other software too that will work ?
Re: converting a chinese 6040
« Reply #5 on: May 18, 2016, 05:19:05 AM »
I have just checked with a demo version of mach4 and it doesn't seem to happen then, so looks like only in mach3. I was wondering if the kernel speed inside mach3 has any affect on pokeys or doesn't it matter ?

Offline NeoTO

*
  •  504 504
    • View Profile
    • PoLabs
Re: converting a chinese 6040
« Reply #6 on: May 18, 2016, 11:20:58 AM »
The kernel speed setting of Mach3 does not affect the PoKeys device operation.
www.poscope.com home of PoKeys USB HID, IO, USB, Ethernet controler and PoScope USB PC oscilloscope