Cannot create custom tool from this geometry

[SlaveCam]

Chain appears to be valid and there are no overlaps. I have done similar custom tools before, but this one just won't do. What is wrong?

Geometry file was downloaded from Iscar's site and I extracted profile from it.

iscar2.mcam

[JParis]

Here's what I did...

Your level showed 555 entities....I chained the tool, moved it to its own level....that left 2 entities on the Level 1...I deleted those 2 entities and the tool geometry worked as expected

 

iscar2-1.mcam

[SlaveCam]

Thanks a lot! I was putting way too much expectations on overlapping detection...

[SlaveCam]

Not happy yet. As the geometry consists of many tiny line segments, instead of a few arcs, performance is quite poor. Is there any tool that would fit arc to a set of lines using given tolerance?

Best I've managed so far is convert the tiny lines into a spline and break it into larger lines using break many, but I can't get the tolerance option to work.

"Number" option works as expected.

[jlw™]

I have always found that if I build a "Mastercam" tool to match my custom I get better results.  Having said that, it is not always possible such as feedmills.

The tool in the mcam file, I would define as a necked em with corner rad.

[SlaveCam]

58 minutes ago, jlw™ said:

I have always found that if I build a "Mastercam" tool to match my custom I get better results.  Having said that, it is not always possible such as feedmills.

The tool in the mcam file, I would define as a necked em with corner rad.

I agree, but there are special cases where I need visual confirmation. There's plenty of custom form tools in the machine and I really prefer seeing them in visualization as they are in real life. Toolpaths for them are very simple (usually just a full circle with lead in and out).

[JParis]

I'd try a 3 point arv, click start point, end point, then midpoint...you can mess with that for a best fit

Typically feedmills are given a tool radius arc in the information as well

[Ben Wood]

Another option to convert it to arcs would be to create a 2d contour with comp off and arc filtering on.  Then use the save as geometry button in back plot.