PyCam and pypy

I've been playing around a bit with PyCAM-0.5.1 which works nicely but is very slow particularly with the 'carve contour' process.

Googling around a bit lead me to this site
It mentions running pycam under the JIT compiler environment of pypy. The results are very encouraging.

Here are the pycam event logs of two runs with the default bundled stl file. The only changes made were to select the cylindrical tool for the semi-finish process.

The first is running pycam normally, the second is running it in client server mode with the server running under pypy.

The test machine is a core i7 with 6GB ram.

My command line to launch the server was ...
The command to launch the gui
The server was launched from a dedicated copy of pycam, ie, untar the tarball, cd to pycam-0.5.1 and enter the above command.

The version of python on this system 2.7.8 and v 2.3.1 of pypy was used

Hopefully others can duplicate.

Regards.

Steve.

There's been a bit of discussion of CAM software on the mailing list, so in light of that here's my PyCam launch script for those interested in giving PyCam + pypy a try.

It a bit rough and ready and doesn't do any checking, use at your own risk and all that

Regards,

Steve.

Hi Steve,

Thank you for your posts regarding pypy and pycam. I am very interested in getting this to work. So far I have done everything on my cnc mill with opensource free software which has always been my goal. I am having trouble getting pycam to run client server mode under pypy.

Python 2.7.13 (5.8.0+dfsg-2, Jun 16 2017, 22:57:18)
[PyPy 5.8.0 with GCC 6.3.0 20170519] on linux2

Above are my versions of Python and PyPy. I have PyCam 0.5.1 working on Ubuntu but as you know well it is very slow. This is what I have in terminal when trying your start up script


wwp@desktop:~/.pycam$ pypy pycam --start-server-only --server-auth-key=test --number-of-processes=$CPUS --disable-psyco &
[1] 7380
wwp@desktop:~/.pycam$ PID=$!IOError: [Errno 2] No such file or directory: 'pycam'

This is when running from /home.

wwp@desktop:~$ pypy pycam --start-server-only --server-auth-key=test --number-of-processes=$CPUS --disable-psyco &
[1] 7625
wwp@desktop:~$ IOError: [Errno 2] No such file or directory: 'pycam'

I am by no means a developer but I am proficient with Linux OS's and willing to learn. If you could point me in the right direction I am willing to help get this working for all of us interested in this method.

Thanks

Bill

That is nothing short of impressive !
This is the first time i see this post, and that is a huge improvement in time saving.
That would be very useful to a lot of people, for sure.