Restmachining Issue

[redwood]

So when I run the toolpaths on this model using the restmachining option, the A's and 4's in the upper text don't cut nearly as cleanly as when I use a single 1/16" TBN. and no restmachining. I'm sure this is not supposed to be how this works. All bit parameters are the same and finish with a 1/16" TBN. I have even tried adding a 1/32" TBN, with no improvement. I also have shadow lines when using the restmachining option. Any ideas. Obviously I would like this to work because the machining time is almost 1/2 the time, starting with a larger first bit. Any ideas?

Without restmachining

With restmachining

[Rcnewcomb]

Move the minimum detail slider towards fine and try a larger boundary offset

[redwood]

I did try moving the slider all the way to fine, with no effect. My boundary offset for both methods was .03 in.

https://www.dropbox.com/s/eqxtiazxi9u2g ... crv3d?dl=0

[Rcnewcomb]

Alternative:

• Run everything with a Rest Machining tool path.
• Then put a boundary vector around the areas you want to specifically machine with the smaller bit and run those as regular 3D finish toolpaths.

I'd recommend contacting support@vectric.com so they can look into it.

[SteveNelson46]

I think you just need to uncheck your original model on the modeling tab and recalculate all toolpaths with with only the draft model selected. You don't need both. Also, I would use a vector boundary to calculate the toolpaths instead of the model boundary.

BTW, that's a nice looking plaque.

[scottp55]

With VCP 11, I had the same issue back in July, and finally gave up playing with it to start Cutting.
Spent an hour last night(and an hour this morning thinking patches would fix it) simply concentrating on the cut and the slider on finest(and manually inputting tolerances .0001") and get the same thing I got even into August.

With Rest Machining

With 2 Finish toolpaths

Notice the "A"s and the pump face.
It looks like a similar problem?

Finally gave up in frustration then(and now), and simply Cut.

[Adrian]

I expect it's to do with the tool being tapered. If you take the size of the inner section of the A and the 4 and then work out where the sides of the taper would intersect at the depth needed it only leaves an area that measures less than the tip of the bit so nothing is actually cut.

When the whole job is cut with that tool it's a very different process as it's rastering over the whole piece rather than trying to do it over such a tiny area.

[redwood]

Well after trying all the suggestions, using one tool, 1/16" TBN, gives me the best finish, with actually minimal time difference over using 2 tools and rest machining. Pretty disappointing actually. This feature was one of the main reasons for me upgrading. Previously, I had tried the manual rest machining with mixed results. Sometimes it worked, sometimes it didn't.

[scotttarnor]

I ran this with an 1/8 BN (gray) added a 1/16 TBN (red) and was happy.

[redwood]

I finally got this done. I didn't use the rest machining option, just a 1/16 TBN all through. This was derived from a patch.