Ok my learning curve continues.

I designed a simple house in CAD software, imported it to Vectric Cut2D to create the toolpaths and exported to Mach3 as part of my learning.

The house in the photo: http://www.flickr.com/photos/59593297@N07/5537454838/

is my 2nd attempt at using the software combo above.

Although generally happy, I noticed the edges of the 3.6mm ply used, are ragged and torn especially around the windows. I'm not sure why?

I used a 3mm ball nose cutter and think this may be part of the reason and think an end-mill may be better. Possibly the feed rate was too fast, or the cutter not sharp enough, or the ply not suitable? I'm not sure really.

I would be grateful for any suggestions at this point. Thanks.

Simon.