Originally Posted by Brakeman Bob  Are you programming in inches or in mm? If you are programming in inches your arc tol is far too big - try setting it to .001. You will get an lot more code, but the finish will be better. |
Bob, thanks for the insight.I'm programming in mm. I believe that is the default in SC. A change in the arc tolerance definetly smoothed things abit. see the pic below
Originally Posted by JerryFlyGuy Also, you could do a constant Z for the first 30-40 deg around the curve and then finish it w/ a constant step over in the same direction. I'm not sure I'd use around the cylinder, but rather along the cylinder. I just checked and w/ a 1/4" ball nose and a 0.01 step over you should have a max scallop of 0.0001" so it should look pretty darn smooth. How accurate is your machine [step resolution or steps/in in mach]? Also as was noted jump up the tolerance on the part. I'd go to something in the 1/2 thou range myself. It will generate LOTS of code but in tight finishing pass's it often dones and is required.. it shouldn't slow the job down any as in your finish pass on a X3 your not going a mile a minute anyway.. |
Hi Jerry thanks for the info as well. Im not sure I quite understand the 30-40 deg in constant Z. care to offer more info?
It looks like I was using a large scallop value hence the less than desirable finish.
I am still putting together the machine and should be done here pretty soon.
One other question, how accurate timewise is the solidverify feature? I have to make 8 of these puppies and it looks like a smooth finish might take quite a while. These are throttle bodies going on an V8.
Once again thanks and more insight is welcome.
pic with the current settings
