Omag Digitale 5

[Vinny]

Hi Everyone,

Does anyone have an Omag Digitale 5 that can cut sinks out? I'm having trouble with a lot of chipping on the bottom of my pieces. Any type of material and they all chip at the sink bottom, inside radius, outside radius. I've tried soft bit and hard bit. I've slowed down the feed rate, RPM, traverse speed, can not get it to stop chipping. Any advise or help would be much appreciated.

Thanks

[Alex DiPietro]

i think that anyone using an incremental will chip the bottom...

[Vinny]

i think that anyone using an incremental will chip the bottom...
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I spend more time fixing chips than I did before I bought the saw. There has to be a solution. The saw is supposed to speed up my production not slow it down.

IMG_3784.jpg (80.83KiB)Viewed 2482 times

[adriamarble]

The solution is to get a sawjet

i think that anyone using an incremental will chip the bottom...
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I spend more time fixing chips than I did before I bought the saw. There has to be a solution. The saw is supposed to speed up my production not slow it down.IMG_3784.jpg
[

[GCA]

dunno about the omag but from the old sink cutout machine days once you had about an 1/8 of material left you needed to plunge the bit through the piece so that it was about an 1/8 below before doing the final pass to prevent blowout. if you just grind it until its paper thin it would always blow out just like your pictures. you waste more bits due to having to swap them when they get down to about a 1/4+ but you dont have to mess with constant gluing

[colin]

Vinny,
i have a Park Saber 5 axis saw and experience the same thing. I posted a similar question on this forum a year ago. there is no solution that uses an incremental bit that Im aware of. the solution is to avoid using the incremental on finished edges. i run all pieces throught the router after the saw so it is not a problem for me generally. It is more of a problem with stones like Taj Mahal because the blowouts on the bottom edge were too large for the router to remove. I solved this by shrinking the cutout from 1/8 small to 1/2 small and then running a finger bit on the router to bring it to 1/8" for the router tooling. It sounds like you must be finishing the pieces by hand though...

[Vinny]

dunno about the omag but from the old sink cutout machine days once you had about an 1/8 of material left you needed to plunge the bit through the piece so that it was about an 1/8 below before doing the final pass to prevent blowout. if you just grind it until its paper thin it would always blow out just like your pictures. you waste more bits due to having to swap them when they get down to about a 1/4+ but you dont have to mess with constant gluing
[

Thanks, I will try this

[Vinny]

Vinny,
i have a Park Saber 5 axis saw and experience the same thing. I posted a similar question on this forum a year ago. there is no solution that uses an incremental bit that Im aware of. the solution is to avoid using the incremental on finished edges. i run all pieces throught the router after the saw so it is not a problem for me generally. It is more of a problem with stones like Taj Mahal because the blowouts on the bottom edge were too large for the router to remove. I solved this by shrinking the cutout from 1/8 small to 1/2 small and then running a finger bit on the router to bring it to 1/8" for the router tooling. It sounds like you must be finishing the pieces by hand though...
[

Thanks, i will try this as well

[mistyjoe]

We have one as well and went to a longer incremental bit and that works fine....you probably are hitting the collet using to short of a bit will cause that.

[Vinny]

We have one as well and went to a longer incremental bit and that works fine....you probably are hitting the collet using to short of a bit will cause that.
[

Can you let me know where you and what bit you bought? Is the Bit longer? or the Adapter is longer?

Thanks

[sandor]

Incremental bits will always blow the bottom of natural stone and sintered materials. I usually stop the cutting cycle at15mm on 3/4” slabs and finish by hand.

[mistyjoe]

Its a bit we get from Defusco...check out there website....

https://www.defusco.com/index.php?route ... ncremental

We use the Apex ones....

[Justzack]

extend the lead in so its working on the flat when it plunges thru. I use a bottom segment finger bit and rarely have this issue

[Vinny]

Vinny,
i have a Park Saber 5 axis saw and experience the same thing. I posted a similar question on this forum a year ago. there is no solution that uses an incremental bit that Im aware of. the solution is to avoid using the incremental on finished edges. i run all pieces throught the router after the saw so it is not a problem for me generally. It is more of a problem with stones like Taj Mahal because the blowouts on the bottom edge were too large for the router to remove. I solved this by shrinking the cutout from 1/8 small to 1/2 small and then running a finger bit on the router to bring it to 1/8" for the router tooling. It sounds like you must be finishing the pieces by hand though...
[

We are finishing straight runs on the Pro Edge and radius by hand. I don't have a CNC so I can't oversize and then finger bit them back to size.

[Vinny]

Hi Everyone,

I've tried so many different setting, but i'm still getting crazy blowouts on the bottom. Could it be possible a bad bit choice. I'm using a 20 x 20 bit from toolcity. Does anyone have other suggetions. whether it could be a cheap quality bit, or still my settings

[Alex DiPietro]

how much are you taking per pass? are you cutting in one or two directions? as mentioned before, incremental bit cutting sucks, and blowouts are to be expected. Everyone buy cnc saws expecting great production cutting sinks but its impossible.

[Alex DiPietro]

how much are you taking per pass? are you cutting in one or two directions? as mentioned before, incremental bit cutting sucks, and blowouts are to be expected. Everyone buy cnc saws expecting great production cutting sinks but its impossible.

[Vinny]

how much are you taking per pass? are you cutting in one or two directions? as mentioned before, incremental bit cutting sucks, and blowouts are to be expected. Everyone buy cnc saws expecting great production cutting sinks but its impossible.
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My depth step is .096 and its cutting in 2 directions.

[Alex DiPietro]

That’s too much per pass. Try taking .02” per pass. And increase feed rate. See what happens.

[Vinny]

That’s too much per pass. Try taking .02” per pass. And increase feed rate. See what happens.
[

.02 would take me about 4 hours to cut a sink out. at .096 inches it still takes me about an hour

my rpm is 3500
feedrate is 25

[Alex DiPietro]

you have to increase the feed rate... The amount of material you're trying to take is too much for most cnc tools. Even a stubbing wheel shouldn't take more than .06". i would try .02 at 120ipm and dial it down. I think you'll minimize the blow out, but not eliminate it. Bottom line is that incremental cutting is slow and it sucks. If you want to cut sinks on a saw, then the saw should have a waterjet on it. There's many factors, is your table flat? if there's any space beneath the slab it will blow out. Most have success with incremental bits on quartz. Natural stone it becomes more of a problem.

[Vinny]

you have to increase the feed rate... The amount of material you're trying to take is too much for most cnc tools. Even a stubbing wheel shouldn't take more than .06". i would try .02 at 120ipm and dial it down. I think you'll minimize the blow out, but not eliminate it. Bottom line is that incremental cutting is slow and it sucks. If you want to cut sinks on a saw, then the saw should have a waterjet on it. There's many factors, is your table flat? if there's any space beneath the slab it will blow out. Most have success with incremental bits on quartz. Natural stone it becomes more of a problem.
[

I'm assuming my table is flat, the tech from OMAG installed it 2 months ago. I have wood slats on the table. 120 inches per minute sounds really fast. I'll try it. right now its taking about 15 minutes per radius. 1 hour per sink. I will try this.