Drilling feed speed?

Here's the place for discussion related to CAM/CNC and the development of the Path module.
kbrown
Posts: 2
Joined: Thu Feb 08, 2018 1:03 am

Drilling feed speed?

Postby kbrown » Thu Feb 08, 2018 1:14 am

Hi,

First post in the forums so apologies if this has already been discussed. I've just recently started learning the Path module in FreeCAD. I decided to install the freecad-daily version instead of the old 0.15 that came from the default linuxmint repos. Here's the version info I'm on right now:

Version: 0.17.13217 (Git)
Hash: 89275766de909a5c1f36e962806dc7b4a0b0f47b

My issue is that I cannot seem to set the feed rate for my drilling operations. I've set the operation's tool controller to a tool which I've set to have 100mm/s horizontal and 10mm/s vertical feed rates. However when I post process (linuxcnc) the job it comes up with g-code lines like this:

G83 X50.000 Y21.077 Z-0.500 F600.000 Q0.100 R1.000

Where does it get the F600 from? I haven't got such feed rates anywhere in my project afaik.
roivai
Posts: 117
Joined: Thu Feb 02, 2017 5:29 pm
Location: Oulu, Finland

Re: Drilling feed speed?

Postby roivai » Thu Feb 08, 2018 8:42 am

Hi and welcome!

LinuxCNC expects feed rates in mm/min (or inch/min if set for inches). So that 10mm/s is translated to 10*60=600mm/min.

roivai
kbrown
Posts: 2
Joined: Thu Feb 08, 2018 1:03 am

Re: Drilling feed speed?

Postby kbrown » Thu Feb 08, 2018 4:36 pm

Ah of course. Coming from HeeksCNC I'm used to deal with mm/min rather than mm/s. Makes sense now. Thanks!