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Messages - comet

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271
General Mach Discussion / Re: gecko g340
« on: September 04, 2007, 02:30:12 PM »
Cheers Brian,
  that confirms what I thought,I bought some new BEC 260's off ebay for a steal,
but they really require 150 ma @5volt a little bit to much for the gecko's.

  While Im here ,what would haooen if I put 12 volt into the encoders (there rated 5-24)?
would that increase the A B voltage or do all encoders output a standard voltage?
  thanks again
       Tony

272
General Mach Discussion / Re: how to fit servo mottors?
« on: September 03, 2007, 04:03:33 PM »
ziga,
  you really need to sit down quietly and read the mach3 manual,to learn the basics
all the answers you need will be there,if you go for servo's, brushed DC are the cheapest.
using gecko 340/320 drives
tony

273
General Mach Discussion / gecko g340
« on: August 30, 2007, 05:50:06 PM »
Hi,
  can anyone tell me, when using a seperate psu for the power feed to an encoder, atatched to a
gecko g340, do you need to common up the 0 volts if so which 0volts,othewise it seems to me that there is no continuity.
  on the a & b encoder lines back to its psu.
    I dont want to risk blowing a drive and I have had no reply from gecko on the matter.
    cheers
    Tony

274
General Mach Discussion / XP
« on: August 27, 2007, 10:33:24 AM »
Hi,
  can anybody say if there is any advantage in using XP Pro over XP Home for our
application. I would like to try Vista but I am not in a position to up date all of my software,and
replace hardware that is incompatable!
    Cheers
   Tony

275
General Mach Discussion / Re: Where to learn 3D CAM?
« on: August 25, 2007, 04:29:26 PM »
Marmot,
  you will need a cad/cam package such as mastercam,bobcad and a whole host of others.
you draw surfaces and convert then to toolpaths,simple theoreticaly but not in practice!
some softwares are better than others,mastercam is probably the world leader.
  All of these systems are prohibitivly expensive unless you take the time to download a cracked copy.
I could not condone this behavour though!
   when you have your software you will need a postprocessor that will link it to mach,
now thats a whole new can of worms!!
     Tony

276
General Mach Discussion / Re: ports
« on: August 07, 2007, 03:58:54 PM »
cheers for that

277
General Mach Discussion / Re: loosing steps in one direction
« on: August 06, 2007, 05:32:53 PM »
hi,
 is it 100% repeatable?
if your steps per inch were no where near correct it should still
zero on return.
  if your not missing steps that is...
  tony

278
General Mach Discussion / ports
« on: August 05, 2007, 03:42:41 PM »
Hi,
  I noticed that you can have ECP, EP, SPP and BPP Modes with the
parallel port.Which is best for us and why?
   Tony

279
General Mach Discussion / Re: Pull-up Resistors
« on: July 26, 2007, 04:25:05 PM »
hi,
 I will asume you are refering to encoders? in which case you should refer
to the manufacturer of the encoder's specsheet.

280
General Mach Discussion / onboard graphics
« on: July 22, 2007, 05:28:31 AM »
Hi,
  I am using a NEC powermate 2.8 pentium to contriol my mill
running XP pro and the latest version of mach3 using a netmos pci parallel card.
  The problem I have got is it wont run mach reliably above 25hz.
It does have on board graphics which according to the bios you can disable, but it dosent work ,there are no mobo jumpers.
it does say in bios that you can initiate on pci or onboard.
   But when you get into windows both graphics cards are there.
So my question is if I set to initiate on pci and the main screen to be Pci, although running extend to the onboard will the onboard
graphics still hog memory 512mb (reading 504) and could this be the reason for the frequency unreliability?

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