FRO in Mach 2 Demo.

[swearymicrobe]

I have been using Rhino with the Mach 2 Demo converting my dxf files with ACE on a Sherline 2100.

Everything is going great, in fact we have ordered Mach 3 but working for a huge company that has done absolutely no machining has been a difficult to get through our PD, they are used to order int he 6-8 figure range not under 200$.

Right now I am having a slight problem and that is the feed rate, I seem to have no control over it when running off a G-code file, we are using some very soft plastics and right now the machine is running at ~1cm a minute. Which is way to slow. I have gone through the G-code that ACE spits out but I have not seen a hook for FRO.

When I run the machine with Mach 2 manually with the keyboard I can hit like 60 cm ~20 inch's a minute without binding. I can cut reliably at about 15 inches a minute at 2.0mm depth easy.

So does the Mach 2 software demo limit FRO, or where would the setting be for the limit of the FRO during a G-code cut.

I can crank the speed with the F11 button to 300% and its still way to slow.


Thanks in Advance.

[ger21]

Just add the feedrate to the first line of code, like:

F100

for 100 units per minute. (Whatever units you have Mach set too.

Or, type it into the feedrate DRO and hit enter.

All versions of Mach limit the override to 300%.

[bclark6716]

In addition to Gerry's comments, look to make shure your motor tuning is set to your machines speed reqiurements.
Brian

[swearymicrobe]

Thanks, I have little experiance manually modifing G-code, I thought that the FRO was tied to each step. So it acts like a global variable. I will have to find a way to code it inside my conversion software so I don't forget.

[ger21]

FRO is Feedrate Override. It overrides the feedrate set in the program.