Cutting path questions

[magicniner]

Geometry is the usual issue, translating between packages can result in the odd "Funny"
Check version compatibility - do you need to "save as" an earlier version of .dwg for the CAM package to corectly interpret the geometry?
Having the imported object as simple as possible will also improve your chances.
That's about all I've got ;-)

- Nick

[Ger21]

In AutoCAD, make sure it's a closed polyline.

I'm not a fan of Sketchup for CNC applications.

[chris161190]

Ok thanks that makes more sense, I'm not a massive fan of sketch up anyway but didn't have autocad with me at the time so tried it on that I think I'll try with a poly line on autocad and try again. Alternatively could I simply draw any geometry on autocad then group the geometry together to create the shape that way?

Chris

[Ger21]

That depends on what exactly their software expects. I'm not familiar with it.
Generally, closed polylines work best, but it varies with different CAM software.

[Boyan Silyavski]

A good drawing program like Coreldraw or Adobe Illustrator, or even better Aspire . Enter in node editing mode and make sure all lines a joined properly at the corners.

below is a sample when you magnify a problem. Third pictures looks ok but could be problematic if you have not joined the lines:

[chris161190]

Hi thanks for the picture, yes you're exactly right when I magnify the corner in the cam software I get a corner which is over shot on both lines like your first picture. The test shape I cut was done just using the basic line tool and not a polyline so I think this is the first thing to try.
im going to stick with autocad for now cos it's what I'm used to and cos I have it I obviously tried sketch up but I don't find it that good for drawing tbh we only use SketchUp to take a 2D autocad view and render it in 3D for clients approval.

Chris

[Boyan Silyavski]

No problem. When i see the toolpath simulation doing crazy stuff like digging a grave there, i know its some open line or edge left there

[Clive S]

I get a corner which is over shot on both lines like your first picture.

Chris Do you have "object snap" clicked ( F3 on mine) there are settings that you can snap to end of line or centre point etc.