Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: PCH on October 02, 2012, 02:50:06 PM

Title: feddrate
Post by: PCH on October 02, 2012, 02:50:06 PM

My g code is generating a specific feedrate but is not running at that rate.  The dro is showing a slower rate.
What's wrong?   :(

Title: Re: feddrate
Post by: Chaoticone on October 02, 2012, 02:58:33 PM

What are your feed rate over ride and rapid over ride dros set to?

Brett

Title: Re: feddrate
Post by: PCH on October 02, 2012, 03:11:27 PM

Feedrate or set to 100
Where is the rapid or?
FRO %  100
FRO is 100
Feedrate 100

Title: Re: feddrate
Post by: PCH on October 02, 2012, 03:36:12 PM

Bobcad is putting feedrate at the last ramping pass on a circle cuttout.
Not matter what I do I cannot edit the gcode to change it.  Something about
the path not being right.  Can't feedrate override for somereason. 
Also I can not edit it in Mach.  It will not save for the same reason about a path.

Help!

Title: Re: feddrate
Post by: Hood on October 03, 2012, 07:09:43 AM

FRO may be inhibited via the code, have a look and see if there is a M49 in the code.
Hood

Title: Re: feddrate
Post by: Hood on October 03, 2012, 07:11:38 AM

Oh and as far as editing, sounds like Mach cant find notepad, you can tell Mach where to look from General Config page and using the browse option, normal path is \Windows\Notepad.exe

Hood

Title: Re: feddrate
Post by: PCH on October 03, 2012, 07:40:23 AM

Hood,

No M49 in code.
My path is correct in the Gen Config.
I am networking with my office pc and it "cannot find path" which
is the path to the office pc.  Maybe that's the problem. 
When I chose "edit code" in Mach it does take me to notepad but
when I make changes it will not save and I get the message "cannot find path"

Suggestions?

Title: Re: feddrate
Post by: Chaoticone on October 03, 2012, 08:05:09 AM

Attach your code and xml and I will look when I get back form the DR.

Brett

Title: Re: feddrate
Post by: Hood on October 03, 2012, 08:40:19 AM

That is not recommended, copy the file to the machines hard drive before you run from Mach.
Hood

Title: Re: feddrate
Post by: PCH on October 03, 2012, 12:40:28 PM

Hood,

Not sure how to go about that.
But I have a bigger issue.
Something Bobcad tech support cannot do for me.
I cannot enter 2 different feed rates.  One for plunge and one for feed.
On a circular ramp cutout it will run most of the code at the plunge feed
rate which is much slower that I want the cutting feed.  At the end of the
code on the final pass it jumps to the feedrate that I entered for cutting feedrate.
And ideas?
Attached is file that shows the 20ipm that I have setup for plunge but it is also
running at that speed for the cutting until the end.

Help ???

Title: Re: feddrate
Post by: Hood on October 03, 2012, 01:23:02 PM

You would normally have the ramp feedrate the same as normal cutting feedrate as it is really only plunge cuts where you need to have a reduced feedrate.
Is BOBCAD using your plunge feedrate for your ramp?
Hood

Title: Re: feddrate
Post by: PCH on October 03, 2012, 03:12:26 PM

I am doing a plunge feedrate and then the cutting feedrate.
The parameters are on the same window so I chose a plunge feed
then the cutting feedrate.  But the program runs the plunge feedrate
thru the code until it's last pass on a ramp cut.

Title: Re: feddrate
Post by: Hood on October 03, 2012, 03:27:32 PM

Ok I see now, well seems like a BobCAD issue, maybe just a case of getting the post processor sorted out?
Hood

Title: Re: feddrate
Post by: PCH on October 03, 2012, 03:29:29 PM

I suppose.

Thanks

Title: Re: feddrate
Post by: Hood on October 03, 2012, 03:41:12 PM

There is a guy from BobCAD posting on the forum quite a bit, ask in his thread and he may change it for you.
Here it is
http://www.machsupport.com/forum/index.php/topic,21342.msg156567.html#new
Hood