Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: stringkilla on March 26, 2006, 02:44:31 PM

Title: Help with Position of Home and Piece Part
Post by: stringkilla on March 26, 2006, 02:44:31 PM

Please see attached doc for explanation of what I strive to do. I've read and reread the manual and watched the videos and I still can't seem to grasp it. :'( :'( :'( Also when I run G code from V Carve the machine runs it up in the air. The moves seem to be OK but, all it cuts is air and the Z axis movements are backwards. HELP!!!!!!!

Title: Re: Help with Position of Home and Piece Part
Post by: Brian Barker on March 27, 2006, 06:50:34 AM

Okay I think I am starting to see where your problem is... If you press Page Down is the spindle going down? are the numbers gettng more negitive?
Thanks
Brian

Title: Re: Help with Position of Home and Piece Part
Post by: stringkilla on March 27, 2006, 06:16:17 PM

Brian have you looked at my query attachment. I think this may have a lot to do with my ongoing problems. Take a look at it and see if you can tell me in plain English how to work it out. As I said I've watched the video on co'ord's and homing and find it very confusing for some reason.  I'm ready to throw this whole business int the toilet ;D ;D and get on to another very expensive hobby. LOL I'm insane, :-[ :-[

Title: Re: Help with Position of Home and Piece Part
Post by: Brian Barker on March 27, 2006, 07:20:43 PM

Can you post it as a jpeg... I can't read that other file.

Title: Re: Help with Position of Home and Piece Part
Post by: Bloy on March 28, 2006, 01:26:57 AM

Hi Brian,
  Open that file with "wordpad" and it will show a graphic and a paragraph of what Stringkilla is trying to do.
     I wish I could help on this....

..or open this PDF file...

Title: Re: Help with Position of Home and Piece Part
Post by: Graham Waterworth on March 28, 2006, 03:57:42 AM

You could use a setting jig something like the picture.

Make the jig from 1/4" alum plate and bolt it to the machine table anywhere, then clock it square to the axis.

The 1/2" hole is a setting hole so you can clock it at the start and set X and Y zero at this point.

Then have G54 set at -12" and -6"

The 3 off 1/4" dia pins then locate the work in the correct place.

The drawing is in metric by the way.

Graham.

Title: Re: Help with Position of Home and Piece Part
Post by: stringkilla on March 28, 2006, 05:15:08 PM

Quote from: Graham Waterworth on March 28, 2006, 03:57:42 AM

You could use a setting jig something like the picture.

Make the jig from 1/4" alum plate and bolt it to the machine table anywhere, then clock it square to the axis.

The 1/2" hole is a setting hole so you can clock it at the start and set X and Y zero at this point.

Then have G54 set at -12" and -6"

The 3 off 1/4" dia pins then locate the work in the correct place.

The drawing is in metric by the way.

Graham.

  Thanks I think a fixture like that will work, as soon as I find out how to set my part Zero. Thanks for the idea.