Machsupport Forum

G-Code, CAD, and CAM => G-Code, CAD, and CAM discussions => Topic started by: Edward on April 05, 2019, 06:58:21 AM

Title: Feed Rate mm/sec to mm/min
Post by: Edward on April 05, 2019, 06:58:21 AM

Hello

I have a feed rate issue from running a Multicam Post Processed file on Mach3 for CNCRP.

I think I have fixed most of the other problems but cannot find a way of changing the feed rate units from mm/sec to mm/min without manually changing the g-code itself.

Is there a setting in Mach3 I can change for this?

Many thanks

Edward

Title: Re: Feed Rate mm/sec to mm/min
Post by: ZASto on April 05, 2019, 07:53:01 AM

https://forums.autodesk.com/t5/hsm-post-processor-forum/feedrate-units-adjustment/td-p/8514266

Title: Re: Feed Rate mm/sec to mm/min
Post by: ger21 on April 05, 2019, 08:21:57 AM

What CAM software are you using?

Title: Re: Feed Rate mm/sec to mm/min
Post by: Edward on April 05, 2019, 10:13:23 AM

UPDATE

I think I was not completely clear earlier. We have a large library of g-code files (around 300) and want to run these directly on our new machine Mach3 CNCRP Pro. The code seems to work fine (with a few settings changed) except for the feed rate which is at mm/sec in the file and mm/min in Mach3.

Making changes to the post processor or g-code is not really an option as it will mean having to manually alter over 300 files - it may come to this but I would like to avoid it.

So my question is can I change the feed rate units at the Mach3 end of things? - not the post processor or gcode end.

Many thanks

E

Title: Re: Feed Rate mm/sec to mm/min
Post by: ger21 on April 05, 2019, 10:32:40 AM

Not that I'm aware of.

Title: Re: Feed Rate mm/sec to mm/min
Post by: Overloaded on April 05, 2019, 11:25:55 AM

How about if you could modify the FRO to go to 600%  ?
Would that not feed 10 mm/sec in the code, 10 mm/min on the machine ?
 ::)
Russ

Title: Re: Feed Rate mm/sec to mm/min
Post by: ger21 on April 05, 2019, 11:33:41 AM

I think you'd need 6000%.

Then there's that Mach3 bug that can cause issues when running over 200%....

Title: Re: Feed Rate mm/sec to mm/min
Post by: Overloaded on April 05, 2019, 11:54:20 AM

Hmmm ... wasn't aware of the bug.
But, wouldn't you just multiply by 60 (600%) ?  seconds to minutes ? not mm to meters ?

Title: Re: Feed Rate mm/sec to mm/min
Post by: ger21 on April 05, 2019, 12:22:22 PM

100% is normal speed.
100x60 = 6000

Title: Re: Feed Rate mm/sec to mm/min
Post by: Overloaded on April 05, 2019, 12:31:24 PM

 ::) dohhhhh  ;D, Sure you're right.
 :)

Title: Re: Feed Rate mm/sec to mm/min
Post by: Overloaded on April 05, 2019, 12:39:39 PM

Just wondering if Mach4 could effectively multiply the feedrate by 60. 
If so, maybe Mach 4 would be an option to consider ?

Title: Re: Feed Rate mm/sec to mm/min
Post by: BR549 on April 06, 2019, 10:49:18 AM

Sounds like you need someone to write you a simple utility to scan teh Gcode and Convert all the "Fnnn" strings to ( Fnnn X 60).

Just a thought , (;-) TP

Title: Re: Feed Rate mm/sec to mm/min
Post by: reuelt on May 01, 2019, 05:54:50 PM

Quote from: Edward on April 05, 2019, 06:58:21 AM

Hello

I have a feed rate issue from running a Multicam Post Processed file on Mach3 for CNCRP.

I think I have fixed most of the other problems but cannot find a way of changing the feed rate units from mm/sec to mm/min without manually changing the g-code itself.

Is there a setting in Mach3 I can change for this?

Many thanks

Edward

I think it could be done using a MACH3 BRAIN.
I will try to create one BRAIN ASAP. Just trying to make certain which DRO label means what.

Title: Re: Feed Rate mm/sec to mm/min
Post by: reuelt on May 03, 2019, 02:47:31 AM

Quote from: reuelt on May 01, 2019, 05:54:50 PM

Quote from: Edward on April 05, 2019, 06:58:21 AM

Hello

I have a feed rate issue from running a Multicam Post Processed file on Mach3 for CNCRP.

I think I have fixed most of the other problems but cannot find a way of changing the feed rate units from mm/sec to mm/min without manually changing the g-code itself.

Is there a setting in Mach3 I can change for this?

Many thanks

Edward

I think it could be done using a MACH3 BRAIN.
I will try to create one BRAIN ASAP. Just trying to make certain which DRO label means what.

Sorry, i tried but it cannot be done.