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V grooveing for coved splash in solid surface

6/3/15       
Stuart Douglas Member

Is anyone out there doing this succesfully on a CNC router? I just bought the amana insert bit for miterfolding the splash to make integral coved splashes and the insert was smoked after a test cut only 30 inches long. It looks like the chips are rewelding and becasue the tip is so small, wearing the carbide prematurely. Wondering if feeds and speeds are correct or if I have to somehow rough this cut out with some other tool first. its a 46 degree cut and I'm running at 220 IPM. TIA from any operators who have experience with this.

6/3/15       #2: V grooveing for coved splash in sol ...
Stuart Douglas Member

Edit: I was running this @180IPM. I just tested running this at different speeds and feeds and broke the insert and ruined the bit. :(

6/3/15       #3: V grooveing for coved splash in sol ...
Snaglpuss

The problem with a v cutter is you get not much surface speed at the very tip.
Never had good luck with a v unless you rough and finish cut.
An agregate head with a regular cutter tipped at an angle might be the way to go.

6/3/15       #4: V grooveing for coved splash in sol ...
Larry

I think these bits are hopeless. There is no surface speed @ the tip. It is just plowing there. Ask Amana for feeds.

6/3/15       #5: V grooveing for coved splash in sol ...
Mike

I haven't tried Amana, but I have good results with an insert bit from H3d tooling. 14000rpm @ 300ipm, two passes. First pass takes the material to 0.03" from the table and the last pass removes that material. I have used this tool body extensively for 12-13 years cutting solid surface, MDF, and plywood. When I have room to get in and out with a lead I use a 9" diameter saw with 4 wing insert knives. This is a far superior cut, but my saw can only go in the x or y axis using a climb cut. Try another tool and ask the manufacturer for guidance. BTW, the saw came from H3d as well and they also make a 6 wing model. Mine has served well for 12 years but I'll go with a 6 wing if I ever order another.

6/9/15       #6: V grooveing for coved splash in sol ...
Brian

Hi
I had the same problem with the insert bits. after researching with a sign guy that did a lot of corian signs, he told me about the onscrud carbide V bits that have worked great for me. The insert bits are good for mdf and ultralight.
Brian


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