[Malish]

Our company had an Multicam MG305 router that was sold off a while ago. We now have a new machine and I am trying to convert the programs over to the new machine. My issue I am having is that the old programs have a very, very slow federate.

FOr instance one program has the following code

G97 S18000
G00 T8
G00 X13.5837 Y51.7653
G00 Z-.2
M12
G42
G01 X14.5837 Y51.7653 Z.164 F8.3333
X16.1525 Z.735 F11.6667
X28.7442
Y56.0863
X.4232
Y51.7653
X16.1525
G00 Z-.2

so to cut this 28.75" x 4.32" rectangle would take nearly 6 minutes at 11.66 feed rate (If it's in in per min). Does anyone know if the multicam router use a different feed rate measurement?

[Superman]

A feedrate of 11.67"/mim @ 18000 RPM results in a feed of 0.00065"/rev
Feedrates could be bumped up, but, it would depend on what cutter you want to increase rates.... ie a 1/8" single flute wouldn't take a big increase before breaking.

For larger cutters...if you double the number of flutes, double the feed... you only need good clearances in chip flutes to get chips out.

[Malish]

A feedrate of 11.67"/mim @ 18000 RPM results in a feed of 0.00065"/rev
Feedrates could be bumped up, but, it would depend on what cutter you want to increase rates.... ie a 1/8" single flute wouldn't take a big increase before breaking.

For larger cutters...if you double the number of flutes, double the feed... you only need good clearances in chip flutes to get chips out.

The feed rate in the program above can not be in in/min. A feed rate of 11.66 in/min would take over 2 minutes to cut a 6x6 square, that is insanely slow. The program I pasted above is with a 2fl. 3/8 compression bit in plywood. AT 18,000 RMP and a chip load of 0.019 (The low end of the recommended load) the feed rate should be around 684in/min, not even relatively close to 11.6in/min.

That was my question, does the MG305 machine program in something else other than in/min like most machines do?

[revida1211]

The feed rate in a Multicam router is typically measured in inches per minute (IPM) or feet per minute (FPM). Your code indicates that the feed rate is set to 11.6667 IPM; however, it's possible that this value differs for your particular machine or program.

To determine the feed rate in an old Multicam program, look for additional G-code commands that set it (e.g., G01 F). If you can't locate any such commands, consult your machine's documentation or reach out to its manufacturer for assistance.

Once you've identified the ideal feed rate, you can adjust it in your new machine's program to guarantee that cutting time matches up perfectly to your requirements.

[adidoro]

The feed rate in the program above can not be in in/min. A feed rate of 11.66 in/min would take over 2 minutes to cut a 6x6 square, that is insanely slow. The program I pasted above is with a 2fl. 3/8 compression bit in plywood. AT 18,000 RMP and a chip load of 0.019 (The low end of the recommended load) the feed rate should be around 684in/min, not even relatively close to 11.6in/min.

That was my question, does the MG305 machine program in something else other than in/min like most machines do?

Maybe was in in/s not min? if you do 11.6x60=690in/min witch is closer to your 684in/min calculation.
Just a thought.

[Malish]

I was thinking it was in/sec and not in/min like most machines use. I didn't know if that was standard or not on multicam machines.