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Messages - velcomrob

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1
General Mach Discussion / Re: Playing with Mach3 demo newbie CNC
« on: May 10, 2014, 01:46:55 PM »
I think I figured it out.   ill keep playing around with it.  I got it to center this time with fooling around with some settings in solidcam.

thanks!

2
General Mach Discussion / Re: Playing with Mach3 demo newbie CNC
« on: May 10, 2014, 01:24:05 PM »
I did set that option where the origin would be center of the part.   

3
General Mach Discussion / Playing with Mach3 demo newbie CNC
« on: May 10, 2014, 11:14:35 AM »
Hello all.  I am newbie to CNC playing with Mach3 demo for now.

I am just fooling around trying to cut circles to better get a grasp of things, self learning.

I am using Solidworks/Solidcam and have created GCode to create a circle on a piece of stock.

When I load Mach3 everything is Zero and it shows the coord to be bottom left of the table.

When I load the gcode I am trying to set the starting point in the center of the piece as I indicated in Solidcam but it doesnt go there after loading the file.

Im not sure if this is a post processor issue or config of mach3 that I need to do ?  I tried to move to that point on the work piece as best as I can (its hard to tell from the table view if its exactly centered) but when I Zero the DRO's and regen tool path it will go a totally different spot than I want to set it at.

Thanks.

4
General Mach Discussion / Re: weird problem
« on: July 22, 2009, 09:00:25 AM »
Ok.

Much appreciated ill try messing with steps per

5
General Mach Discussion / Re: weird problem
« on: July 22, 2009, 01:53:58 AM »
Ah ok.  then I am off.

My step per is correct.    I did calculations based on TPI and it seems to be correct.  do I need to play with velocity and acceleratio to get correct measurements?

I was playing with the step per to see what would happen.  Is it fairly easy to damage these motors?   I bumped my steps per to 32000 and wondering if that would cause damage?  My normal setting is 16000 which is already available in the sherline profile and based on calculations I came to same number. 



thanks.

6
General Mach Discussion / Re: weird problem
« on: July 22, 2009, 12:45:40 AM »
So I should be measuring to the right of the tool ? and that should be 1" ?

For example:

*---------------------------*
^                           ^
Start Point               End. 

I would measure tothe right of * and it should be 1" and then for Y axis I would measure to the rear of the tool to get 1" on Y Axis.  is that correct?

7
General Mach Discussion / Re: weird problem
« on: July 21, 2009, 11:55:17 PM »
do you mean move 1 inch including the diameter of the tool?

Im using a .125 end mill and the bit moves to 0.75 of an inch

so im assuming if you add 2 offsets since i started at 0.125   Does the offset start at the right of the tool or left?   Im moving right on the X Axis for the test.

All DRO's say 0 so in essence if I moved to 1 inch and I measured the distance with a square, would the tool need to be at 1.125 ?  when im measuring the distance im measure from the starting point on left side of the tool to the left side again of the tool at the end.  is that correct?

maybe its my gcode or setup.  thats what im trying to figure out.  


8
General Mach Discussion / Re: weird problem
« on: July 21, 2009, 02:01:18 AM »
Hello

All scales are already set to 1

Same prob

9
General Mach Discussion / weird problem
« on: July 20, 2009, 09:52:22 PM »
I am a newibe to CNCing and having some problem I can't seem to figure out after reaching mach3 documentation a couple times.

I have a part drawn out in Solidworks and GCode generated with Solidcam.

The size being cut via mach3 isn't the same size as what's been sketched in Solidworks.

For example one line would be 2.28" and when cut it would only cut 1.5" (estimated, I didn't do a precise measurement because it was way off).

Im using a Sherline 2000 Mill with stepper motors and have the Sherline profile (Inch) loaded into Mach3. 

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