Hello Guest it is March 03, 2024, 12:01:54 PM

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - bbutcher

Pages: « 1 2 3 4 5 6 »
41
Galil / Re: odd problem with DRO's
« on: November 19, 2014, 10:23:14 AM »
I ran some tests on the controller using the Smart Term program. My program was
MT -1,-1,-1
CE 10,0,0
DP 0,0,0
SH XYZ
#START
PR 1000,1000,1000
BGX
AMX
MG _DPX
BGY
AMY
MG _DPY
BGZ
AMZ
MG _DPZ
WT 1000
TE
JP #START

This should zero the position counter, then produce a move of 1000 counts on each axis. The result is that the position counter is not advancing, it remains zero. The TE command shows an error increasing by 1000 counts on each axis for each pass through the program.

I performed a master reset and upgraded the firmware, but no change. I ran a Test Controller command, and it reported no problem.
Any ideas if maybe the DMC-1830 board has a bad component?

42
Galil / odd problem with DRO's
« on: November 19, 2014, 08:31:51 AM »
I have an interesting problem. I have Mach3 with a Galil DMC-1840 controller set up in Windows XP, with the Galil-ST plugin. This is connected to a Bridgeport knee mill with 3 axis servo motors. The servo motors are all connected and tuned. Mach 3 connects to the Galil controller and the motors all move in the correct direction and what seems to be the correct amount. My problem is that the DRO values for the X,Y,and Z axis do not change when the motors move. Even when not connected to the motors, when I input a move from either MDI or the MPG jog mode the DRO still reads zero. If I teach a program and run it, the simulator shows movement, but no DRO change. However if I click on the To Go button the DRO counts down the move and works as I think it should.

I have another system running Windows 2000 with a DMC-1750 controller and the DRO's read as they should. Did I miss something in set-up or what could be causing this?

43
General Mach Discussion / Re: Odd problem with DRO in Mach3
« on: November 19, 2014, 08:29:57 AM »
OK, I will post on the Galil forum. Thanks for the tips. I do have the ports enabled, FWIW.

44
General Mach Discussion / Re: Odd problem with DRO in Mach3
« on: November 18, 2014, 06:51:28 PM »
I don't think the problem is related to Galil, it seems to just be Mach3.

45
General Mach Discussion / Odd problem with DRO in Mach3
« on: November 18, 2014, 08:43:58 AM »
I have an interesting problem. I have Mach3 with a Galil DMC-1840 controller set up in Windows XP, with the Galil-ST plugin. This is connected to a Bridgeport knee mill with 3 axis servo motors. The servo motors are all connected and tuned. Mach 3 connects to the Galil controller and the motors all move in the correct direction and what seems to be the correct amount. My problem is that the DRO values for the X,Y,and Z axis do not change when the motors move. Even when not connected to the motors, when I input a move from either MDI or the MPG jog mode the DRO still reads zero. If I teach a program and run it, the simulator shows movement, but no DRO change. However if I click on the To Go button the DRO counts down the move and works as I think it should.

I have another system running Windows 2000 with a DMC-1750 controller and the DRO's read as they should. Did I miss something in set-up or what could be causing this?

46
Galil / Re: Galil Connector
« on: November 18, 2014, 08:20:08 AM »
A similar connector is available in the US from Digikey, P/N 5175677-9-ND with ribbon cable P/N MB100G-5-ND for 5 foot cable. From what I can tell it should work, but have not tried it.

47
Galil / Re: 100 pin connector
« on: November 18, 2014, 07:21:18 AM »
This connector is part of the Champ 050 series II manufactured by TE Connectivity (Tyco Electronics, formerly AMP). Digikey stocks what appears to be a mating connector, P/N 5175677-9-ND for about $16 in quantities of one. From what I can tell this is an IDC (insulation displacement connector) that should crimp onto a ribbon cable having the .050" or 1.27mm pitch. I don't know if the ribbon cable would cause problems with cross-talk, but it might be worth a try given the cost of cables from Galil.
What appears to be a mating ribbon cable is P/N MB100G-5-ND for $18.54 for 5 foot length or $34.44 for 10 foot length. So a 5 foot cable with 100 pin connectors on each end could be made for about $50.


48
Galil / Re: PC requirements for Galil and Mach3
« on: November 18, 2014, 06:23:55 AM »
I have the system working with Windows 2000 and the DMC-1750 controller. It seems to work great. I tried to upgrade to Windows XP but ran into a strange problem. For some reason the computer will not install Windows XP, producing a blue screen of death (BSOD) error, related to SATA drivers. The bios on that computer does not support SATA, and the hard drive is IDE. I even installed XP on the HDD using a different computer, but when I transfer the HDD to that PC I still get a BSOD when trying to boot. The HDD works fine in a third computer (but no ISA port). It may be I need a BIOS upgrade.
 

49
Galil / PC requirements for Galil and Mach3
« on: August 04, 2014, 07:24:32 AM »
Since the Galil card (DMC-1750 in my case) handles most of the work, it would seem that the PC processor speed would not be such a large factor using Mach3. I can see why speed is important when using the parallel port, but from what I understand Mach3 is just feeding a stream of 3D points for the DMC-1750 to use with linear interpolation.

My problem is that my Galil card uses the ISA bus and it is difficult (or expensive) to find a motherboard that will run at 1 GHz and that has an ISA port. I have located a used board in China for about $80 that should handle the 478 socket Celeron processor that I have from another PC. Right now I am running with the Galil Terminal program on an ancient Pentium 3 or 4 processor in Windows 98. I just purchased BobCad and would really like to upgrade to Mach3 for a more user friendly interface to my 3 axis Bridgeport mill. I have considered buying a PCI version such as DCM-1830 which might end up costing about the same as upgrading the motherboard.

Does anyone have experience with Mach3 (or Mach2) using a slower PC? I am not sure my old PC will even run with Windows 2000 or XP, but I think it might work. I probably will need to upgrade my video card in any case. Tech support agrees with my opening comment, but they cannot say that it will work with a slow PC since they cannot be certain and do not want warranty problems. I am open to other suggestions, but would prefer to spend my limited money on tooling if I do not really need the faster PC.

Bob Butcher

50
General Mach Discussion / Re: gear ratio
« on: October 07, 2008, 11:45:40 AM »
Thanks for the ideas. I am going to drive the quill instead of the knee, so that will help some. Since this is for hobby use, I am not too concerned about high speed moves, or heavy cuts, but of course I want it to work correctly. I will look at using a higher gear ratio.

Bob

Pages: « 1 2 3 4 5 6 »