Messages

21

General Mach Discussion / Re: Machine not backing off switch when homing

« on: April 06, 2010, 05:54:05 PM »

What is the actual version you tried?
Hood

3.042.038:  I tried a bunch of debounce and interval changes. nothing worked

Mike

22

General Mach Discussion / Re: Machine not backing off switch when homing

« on: April 06, 2010, 05:43:54 PM »

Everyone that is having problems with the axis not backing off really needs to find the cause and cure it. There are only a couple of possibilities, first is noise, second poor switches.
Noise is the problem if when you home it doesnt always make it to the switch but sometimes homes away from the switch. Also if you share Home and Limits and have noise problems you will get random limit triggers.

Poor switches are when it always makes it to the switch but doesnt reverse enough to close the switch properly. What is happening is the axis moves to the switch, the switch opens and Mach reverses but the switch contacts are sloppy so Mach sees it shut again and sets home but almost as quick the switch is seen as Open again so Mach throws a limit error.

Debounce interval can sometimes be used with either noise or bouncy switches but the best thing is to fix the problem in the first place.
Hood

I don't know, I didn't have any problem until I upgraded to ver 3.04 from 1.90.  I then went back to 1.9 and all is well again.

Mike

23

General Mach Discussion / Re: Setting up axis home (Newbie)

« on: April 04, 2010, 08:54:50 AM »

I'm a newb also so bear with me. When you "ref home" on z doe it ref home properly and zero out? Did you set your "switch offset" in your Sheetcam post to the proper height?
Just my 2 cents worth.

Mike

24

General Mach Discussion / Re: Machine not backing off switch when homing

« on: April 02, 2010, 11:03:53 AM »

Maybe worth trying one of the other recent versions to see what they are like, you will find them on the ftp site.
ftp://anonymous@machsupport.com/Mach/

Dont use R3.043.000 though as that was an experimental revision for tool comp and has known issues.
Hood

Hi Hood
  The link seems to be broke.
 I have temporarily(I hope) downgraded back to 1.96 to get up and running. I can't seem to get 3.04 to home properly.

Thanks for everyones help
Mike

25

General Mach Discussion / Re: Machine not backing off switch when homing

« on: April 01, 2010, 04:59:16 PM »

Shouldnt make any difference but then again I have never had to use  debounce interval on any of my machines.
Are you using the same profile?

Hood

Same profile, yes

26

General Mach Discussion / Re: Machine not backing off switch when homing

« on: April 01, 2010, 01:44:37 PM »

Well I could not get 3.04 to back off the homing switch no matter what the debounce and interval settings were. So uninstalled 3.04 and reinstalled 1.9, I set debounce to 600 and interval to 300, guess what , it homed and backed off the switch just as it should. Figuring I had it "made in the shade" I uninstalled 1.9 reinstalled 3.04 set them to 600 and 300 and CRAP in stops dead on the switch and won't back off. Are the units the same between 1.9 and 3.04. All settings were "as near as I could tell" the same between the versions. I must be missing a switch or something simple. I would like to stay with the latest version but if I can't get the homing to work properly I may be stuck with 1.9.

Any thoughts are mucho appreciated
Mike

27

General Mach Discussion / Re: Machine not backing off switch when homing

« on: March 31, 2010, 10:08:49 AM »

sounds like your switches are a bit bouncy and you are needing to set some Debounce Interval, try setting to 2000 and if it helps reuce until you get the problem again then increase slightly. You will find it on the General Config page.

Hood

Hi Hood,

I set it between debounce 2000 and 50000 and the gantry does not back off the switches. It zeros the DRO but the led remains red. If I manually jog off the switch about .250 the DRO turns green. Could it be a setting in the config area for homing switch settings. I'm fairly NooB at this so I appreciate your help very much.

Mike

28

General Mach Discussion / Machine not backing off switch when homing

« on: March 31, 2010, 09:08:57 AM »

I recently upgraded Mach to 3.04 from 1.96. I thought the homing looked a little different. Upon a closer look the the X and y axises are not backing off the limit switchs when homing. The carridge hits the limit ,stops, and zeros out. Is there something in the Config area that I have not set correctly? I'm assuming I should be backing off the switch until it clears. This isn't a problem (I believe) untill I have to use the Plasma portion, will that change or effect my switch offset?

Thanks
Mike

29

General Mach Discussion / Re: NOOB and screen sets

« on: March 26, 2010, 05:25:58 PM »

Well,
   I set the screen resolution to 1024 x 768, then I "unchecked" the auto-enlarge,    WaLa, the screen set now fills the whole screen(20inch wide screen) . Apparently when the rez is above 1024 x 768 funny things start to happen with the screen set(with mine anyway) 
Thanks for your input

Mike

30

General Mach Discussion / Re: NOOB and screen sets

« on: March 26, 2010, 04:54:13 PM »

Both xmls look fine when I load a standard mill screen, I dont have your dynaplaz screen so cant look at that but dont think it would be different anyway.
These versions of Mach you are talking about, where are you getting them from? Are they OEM versions?
Hood

The 1.9 was a OEM but the 3.04 was off ARtsofts website
Mike