View Full Version : Bottom Chamfer in BOBcad-CAM V25

22-12-2017, 06:44 PM
In our attempt to make this version of BOBcad-CAM work we have run into an issue. We need to chamfer the bottom side of a through hole in BOBcad-CAM. Most of our drawings are done through 2D in the program and we need to know a couple things on this.

1. How do you program a bottom chamfer tool using a Multi-Master top and bottom chamfer tool in BobCAD V25? Tool information at http://www.iscar.com/eCatalog/item.aspx?cat=5697518&fnum=2895&mapp=ML&app=0&GFSTYP=M

2.Is there a way to program bottom chamfers into through holes using 2D drawings or would we need to use solid images to achieve this?

23-12-2017, 11:10 AM
You are asking V25 to do something not supported at it's release but it should be possible.

You can do it with 2D geometry with a little ingenuity, I use a thread milling operation with one turn and near-zero pitch to generate code to cut a groove at the bottom of a blind hole, this gives you the lead-in and lead-out to get in and out of the hole clearing the cutter, you can edit the Z move round the one turn out manually fairly easily if you need to.

If you need more help you can give me a file to put an example into for you,