Messages

2941

General Mach Discussion / Re: Spindle doesn't stop when emergency button is pushed

« on: August 06, 2008, 08:53:00 AM »

Thats great. What I figured. I have also seen some use a 2 posotion relay one for forward, one for reverse. In that case, it has no choice but to be on even in an estop.  Sids suggestion of a 2 contact e-stop switch is a great one. 

Brett

2942

General Mach Discussion / Re: Spindle doesn't stop when emergency button is pushed

« on: August 06, 2008, 12:20:37 AM »

Tell us how you have it set up now. Sounds like a wireing/config issue to me.

Brett

2943

Show"N"Tell ( Your Machines) / Re: Warco VMc /Chester 626 knee mill CNC conversion

« on: August 06, 2008, 12:17:40 AM »

Hood etched the PCB for his relay card and did a great job. That Hood is handy as a side pocket. 

Brett

2944

General Mach Discussion / Re: mill retro HELP

« on: August 06, 2008, 12:10:07 AM »

 

Brett

2945

General Mach Discussion / Re: having flat spots in circles need help adjusting

« on: August 06, 2008, 12:07:02 AM »

I would try to eliminate as much backlash as possible by mechanical means. Sounds like you have about .022 to me and that is quite a bit.    Even with backlash comp. set up, a tool can pull and push the work. You could go into Config, backlash and set the values for each axis there. I would try starting with a backlash speed of 200% and then go to Config., General config, center top and set shuttle accel to .05 seconds.

Let us know how this does,
Brett 

2946

General Mach Discussion / Re: Does any one have the datasheet for a HP HEDS-7500 Optical Encoder??

« on: August 05, 2008, 11:58:05 PM »

Oh man, sorry.     Have you tried contacting the manufacturer?

Brett

2947

General Mach Discussion / Re: mill retro HELP

« on: August 05, 2008, 06:33:00 PM »

Hood, Brother Brett, and all other relatives,

I've never seen a hand wheel like that either Ed. New ones can be found cheap. Have a look at CNC4PC and Homan designs web sites. I wonder what is under the board on that one. All you need is a +V, ground, A and B channels. 

Brett

2948

General Mach Discussion / Re: Does any one have the datasheet for a HP HEDS-7500 Optical Encoder??

« on: August 05, 2008, 05:47:08 PM »

Have a look in the links section, electronics, Datasheet catalog I think it is. Hopefully you can find it there.

Brett

2949

Show"N"Tell ( Your Machines) / Re: Starting on the Hurco

« on: August 05, 2008, 01:58:50 PM »

 

Brett

2950

General Mach Discussion / Re: some stupid problems

« on: August 05, 2008, 10:32:38 AM »

1) Page up and page down keys on your keyboard should jog your z. To move two axis together so that they reach their programed posotion at the same time, put both moves on the same line. A G0 is a rapid move, G1 is a feed move. G1s should also have an F value to determine the feed rate. Examples below.

G0 X2.0 Y1.0 Z1.0
G1 F10 X0 Y0 Z0
G1 F10 X2.0
G1 F10 Y1.0
G1 F10 Z1.0
G0 X0
G0 Y0
G0 Z0

The G1, G0, and F commands are modal. They will stay in effect until they are told to do different so all the G0s, G1s and Fs above arent necessary, just giveing examples. This code will do the exact same.

G0 X2.0 Y1.0 Z1.0
G1 F10 X0 Y0 Z0
X2.0
Y1.0
Z1.0
G0 X0
Y0
Z0

2) You need to set up the spindle in Config, ports and pins, spindle setup.

3)

i can´t move the axis with my tastature... i moved it and in the next moment i can´t but i don´t know what i have changed

Not sure what you saying here.

Brett