Author Topic: Job #2 - Not quite perfect.  (Read 6973 times)

Offline Doanwannapickle

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Job #2 - Not quite perfect.
« on: June 02, 2007, 16:54:39 pm »
Job #2 ran into a bit of a glitch.  Here's a closeup screen shot of the problem area.  Note how the toolpath is backing into the part.

http://www.chicobritish.org/Misc/CamBam/LittleGouge.jpg

Here's the CamBam file.
http://www.chicobritish.org/Misc/CamBam/CNCLatch2.DXF.cb

Suggestions please?

Walt

Offline 10bulls

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Re: Job #2 - Not quite perfect.
« Reply #1 on: June 02, 2007, 20:19:35 pm »
Hi Walt!

I think this is another case of the intolerant tolerances (see http://www.forum.cambam.org/index.php?topic=6.0)

I changed the profile tolerance to 1e-5 in your drawing, regenerated the toolpaths and the toolpath now seems OK.

I *thought* I'd put 1e-5 as a default tolerance everywhere but maybe not.  My apologies.
These do get stored in the templates and user configs as well so it can be a bit of a pain.


Job #2 ran into a bit of a glitch.  Here's a closeup screen shot of the problem area.  Note how the toolpath is backing into the part.

http://www.chicobritish.org/Misc/CamBam/LittleGouge.jpg

Here's the CamBam file.
http://www.chicobritish.org/Misc/CamBam/CNCLatch2.DXF.cb

Suggestions please?

Walt

Offline Doanwannapickle

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Re: Job #2 - Not quite perfect.
« Reply #2 on: June 02, 2007, 20:43:54 pm »
Excellent. 
Amazingly amazing. 
NOW it's perfect. 
I wish drywall were that easy.

Kudos,
Walt

P.S. I'll post a few more pics when I cut it.

Offline 10bulls

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Re: Job #2 - Not quite perfect.
« Reply #3 on: June 02, 2007, 21:37:35 pm »
Urm, maybe not quite perfect... ::)

One thing i did notice as I just looked at your drawing again, is it didn't do the toolpath for the last shape?!  Maybe needs tweak somewhere!  :-\

One other thing I saw, I turned ShowCutWidths=True hiding under the machining options and saw it's undercutting that 'latch' part, I don't know if that will cause you a problem.

Offline Doanwannapickle

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Re: Job #2 - Not quite perfect.
« Reply #4 on: June 02, 2007, 22:38:52 pm »
Well I'm glad you caught that.  Definitely my bad.  I truncated the tenths when I made the drawing.  A .055 cutter just doesn't fit in a .054 space.  CamBam was doing exactly what it should be doing.

As far as the missing path on the last part, I think something must have gone astray with the polyline routine.  When I re-did the dxf, I converted to polylines before bringing it into CamBam.  I'll try to make that a habit.  My cad program has zero tolerance for entities that don't match so a polyline is a good way to check for problems.

Here's the new file.
http://www.chicobritish.org/Misc/CamBam/CNCLatch2.cb

The drywall is on the ceiling.  Off to procure tape & mud for taping and mudding.  Sigh.

With gratitude,
Walt