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Topics - comet

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1
General Mach Discussion / zero axis within program
« on: April 09, 2020, 10:48:59 PM »
Hi I need to zero the Z axis, automatically, at the start of a lathe  program, I cannot use g90/91 because of the profile, any Ideas?
the lathe is a swiss auto bar feed is the z type machine.
cheers

2
General Mach Discussion / mastercam - mach3 5axis
« on: February 28, 2019, 10:25:40 AM »
H does anyone have a mastercam - mach3 5axis post that works, that I could have?
many thanks
Tony

3
General Mach Discussion / bitsensor usb controller
« on: December 12, 2018, 01:30:15 PM »
Hi just bought one of these off ebay, everything on the CD is in Chinese, can anyone point me to an english manual or set up instructions? ive got as far as loading the plugin and it isnt throwing up any errors. ive connected it within mach3 and the plugin control is there so im assuming so far so good. however not sure how to set up the ports? ive set up uc300's and smooth steppers so im not a novice!!

Regards
  Tony

4
General Mach Discussion / anilam 3000 retro fit?
« on: March 03, 2018, 08:23:47 AM »
I have a retrofit to do on an anilam 3000 controlled machine.
the drives and motors are fine ,but I believe the system is 0-10v.
what are the options of interfacing to mach3?
if possible id like to use a uc300 as the primary motion controller but thats not set in stone.

   Regards
   Tony

5
General Mach Discussion / DRO refresh rate
« on: March 01, 2018, 04:21:12 AM »
Hi does anyone know what the dro refresh rate is?
also is it possible to adjust it, what controls it?

Regards
  Tony

6
General Mach Discussion / uc300 analog input outputs
« on: February 08, 2018, 05:35:23 AM »
Hi,
 I would like to connect the 0-10v input on my spindle inverter input, via my uc300's analog connector.
The manual says you can but is sketchy at best as to how you do that, and nothing on how you set it up within mach3?
 Also it has again the ability to set speed/feed override within the analog connector but fails to mention what value pots to use?

   Help would be appreciated as I have found its a bit of a lottery as to whether cnc-drives answer there emails or not !!

Cheers

7
General Mach Discussion / Long encoder cables can you help
« on: February 03, 2018, 09:28:35 AM »
Hi,
  The situation im in is with a retro fit on a customers Wadkin fabricated industrial router.It was fitted with a bosch pmdc system running at 150volts.
I have scrapped all of that system and saved the servos which I have fitted 360ppr chinese single ended encoders on the back (they had tachos on).
  I am using ucnc dg4s 180 drives and there uc 300 motion controller, all of which im happy with.
The ancillary power supplies have there 0 volts commoned to the computer 0 volts and then to machine  ground, but not commoned to the servo main power supply.
The servos have twisted power leads, the encoders have 4core 0.5mm with an overall shield which is grounded only at the drive end.
    Interestingly i can disconnect the grounds etc. and it makes no differance.

The issue :

 Z axis - runs perfectly really smooth encoder/motor leads approx 4 ft long.
 X axis - holds position on start up but if you touch the pulley or give it a command it judders like a crazy thing and creeps forward,uncontrolable and wont stop unless you reset drive. encoder/motor cables approx 12 foot long.
 Y axis - behaves  exactly as X again 10 foot encoder /motor cables.

I have tried swapping drives and motors around with no differance, so I have come to the conclusion its possibly cables, or at least the length of them.
  I have sopken to Balazs at CNC drive and got this answer:
"I think the jumping is caused by electrostatic charge, likely the body of the encoder is statically charged with the motor and maybe even the machine frame"

But im afraid he gave me no solution to it.
  I have read that putting 2 capacitors at the encoder power  end (0.1 +0.001 uf) can help filtering
Also using pull up or pull down resistors on the A B channels can help (will need some clarity here)
Or should I try to totally insulate the encoders from ground.?

I shall be going back on site tommorow to have another go at it, Any thoughts?

Regards
   Tony

8
General Mach Discussion / I Need a macro written will pay.
« on: January 31, 2018, 02:53:22 PM »
Hi ,
     I want to connect a measuring laser to mach3 to be used in a bed of nails type scanner rather than nodding the "Z" axis up and down mach would read the output of the laser .
I'd be happy to pay for the work and any electronics needed to interface. I'm in the UK.

 Tony

9
General Mach Discussion / Stirling probing software ?
« on: January 20, 2018, 03:56:42 PM »
Hi ,is stirlings 3d probing software still available? I've read good things about it.
Regards
Tony

10
General Mach Discussion / 3d scanning with mach3
« on: January 17, 2018, 04:47:11 AM »
Hi what is the latest state of play with scanning/probing/digitizing With Mach3?
I have done Probably 10 retrofits with mach 3 now so im fairly au-fait with the system, but have never previously needed a scanner.
  I would need to have at least a 200mm z depth of scan, and at least a 0.5 mm all round accuracy.
Basically its for scanning and reproducing worn out or damaged vacuum and composite tooling .
Any links to the latest discussions , tutorials and ideas would be greatly  appreciated.
Regards
   Tony

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