CNC Table Milling

[Vinny]

Hi Everyone

I'm new to the forums, so I apologize if my questions is silly.

I just bought a new cnc, and the tech that is installing the machine just milled the table. it has a lot of swirls in it. is that normal? or should it look smooth with no swirls?

[GuyboR]

The swirls are normal...at least that's how our NW looked after they milled the table.

[jbergman]

Hi Vinny,

I spent quite a number of years in another life doing heavy machining. You will always have tool marks. Can you feel them or are they just visual? Two different machining methods are used: fly cutting with tool bits that look as if they belong in a lathe, and face milling with a tool that contains many cutting inserts. Standard practice with either method is to take a very light finish cut. If you can feel ridges, it might need recutting. That shouldn't hurt you.
Hope this helps,

John Bergman
Bergman-Blair Machine Corp
516-381-6774 cell

[Vinny]

Hi Vinny,

I spent quite a number of years in another life doing heavy machining. You will always have tool marks. Can you feel them or are they just visual? Two different machining methods are used: fly cutting with tool bits that look as if they belong in a lathe, and face milling with a tool that contains many cutting inserts. Standard practice with either method is to take a very light finish cut. If you can feel ridges, it might need recutting. That shouldn't hurt you.
Hope this helps,

John Bergman
Bergman-Blair Machine Corp
516-381-6774 cell

Hi john,

its mostly visual maybe very slight feel to the touch. will it effect the suction of the pods?

thanks

[Dan R.]

You will be fine with your pods.

Welcome & congrats on the new cnc!
What machine did you get?

[Amroczka]

Hi Everyone

I'm new to the forums, so I apologize if my questions is silly.

I just bought a new cnc, and the tech that is installing the machine just milled the table. it has a lot of swirls in it. is that normal? or should it look smooth with no swirls?

If you ever need a milling wheel to do it again hit me up, ive got an extra to sell and its barely used.

[jbergman]

Hi Vinny,

As Dan mentioned, if the marks are slight, you should be ok. Good luck with the new machine.

John Bergman

[Vinny]

You will be fine with your pods.

Welcome & congrats on the new cnc!
What machine did you get?

Hi Dan,

thank you, I got a used Breton fabcenter

[Express Granite]

Hi Vinny,

May i ask where you find these used fabcenter. I am looking for one too.

[Vinny]

Hi Vinny,

May i ask where you find these used fabcenter. I am looking for one too.

I called Breton directly, and the area sales guy told me about a used one in boston for sale. it wasn't on any used equipment websites. from my understanding there were only 4 or 5 sold in the US. people with experience are telling me that they hardly use it for cutting and more for the CNC portion. I like the idea of it, because my goal is to do just 2 kitchens a day and not more than that.

[Mike McClaran]

Remember guys, don't spend the time and money on milling the table. You don't have to if you use BVC and you never will again.
https://www.youtube.com/watch?v=s4xhlITiBcU

[Ken Lago]

Remember guys, don't spend the time and money on milling the table. You don't have to if you use BVC and you never will again.
https://www.youtube.com/watch?v=s4xhlITiBcU

Mike if you want to promote your product there is many much better ways than doing it this way.
I suggest you get in touch with someone on the sfa board and discuss the options.

[SbergeronMG]

Remember guys, don't spend the time and money on milling the table. You don't have to if you use BVC and you never will again.
https://www.youtube.com/watch?v=s4xhlITiBcU

I get that different cup might be better then other but the purpose of milling the table is usually not to remove scratches and dent.
Way more to have a parallel surface to your axis.
A machine that gets move needs to go through this.

[mark s]

Lines are normal and probably beneficial. 1st time we ever milled one we got it almost a mirror finish and the vac cups would slip more easily than before.

my 2 cents

[Amroczka]

Those green cups suck really well but probably require a tighter tolerance on the table's flatness compared to blick. Im very suprised to see mike say that and then hear bvc say the cups have a .15mm variance in height. Thats the only thing I question on those cups, other than that they are all around better.

[Alex_Bores]

Those green cups suck really well but probably require a tighter tolerance on the table's flatness compared to blick. Im very suprised to see mike say that and then hear bvc say the cups have a .15mm variance in height. Thats the only thing I question on those cups, other than that they are all around better.

The pods will work with others of the same height. However, I myself would not mix the pods although ALL (but one) of my customers have mixed them without an issue. The green pods are meant to save you time from sending them out to be remeachined, replaced, or whatever maintenance your existing pods might need.
I've found my customers love that they can use two 50x400 pods to suck down a 40-60" vanity without trouble. That's all.

The advice I have is when you are in the market for pods to give them a shot so that you can see the difference. Trying only a couple is not the way to do it. My experience says two pods isn't enoug to offset any height difference if any situation. Except a cvanity of shorter length imo.

Lastly, there will always be more of a tolerance in rubber than steel or aluminum.
Only one return on these pods and that's bc the customer thought they could stop them from having to purchase more as well as mix the pods. Not the intention. I assure you if you would like to try them ( a set not two) I will do whatever it takes to take care of you. That even means taking used pods back and issuing full credit. That's how much I stand by this product. One fabricator to another!

[Amroczka]

Alex they definately are strong... damn near ripped the table apart in vegas trying to pull off the stone sample they had on display lol

[Alex_Bores]

Alex they definately are strong... damn near ripped the table apart in vegas trying to pull off the stone sample they had on display lol

Glad you got to see them! Sorry we didn't get to meet up! You see the damaged cup and the suction that little booger had? Give me a call this week! Would love to catch up!

[K.O.]

Swirls are okay. If you have ridges after milling your table, that is when you should be concerned. Click on this link to see a video of our dressing tool. http://blickindustries.com/movies/Video ... gTool.html
Around the 4 minute mark in the video you can see what the ridges mean.

I wasn't going to bring up pods, but there's been a bunch of things said across many posts, including this one, about our pods in comparison to BVC. So, since it's out there, I am going to mention 2 things about our product in comparison to BVC and other pod manufacturers.

First, our tolerance is +.002" which is +.05mm. This is achieved by assembling the product and rectifying the height. I don't know of any other pod manufacturer that can make those claims. I've measured various sets of BVC pods sent in on exchange and noticed that they way over the above mentioned tolerance of +/-.15mm.

Second, I have had multiple customers try mixing and matching other pods with ours, in the end their feedback to me has been one of 2 things; first, the part breaks because the height of the pods doesn't match up (typically the other pod is too tall) or second, and this is what has frustrated some of the fabricators that have tried the BVC cups, their edge profiles are in-consistent. They see run out or uneven edges at a seem, which has caused them to redo the part or scrap it all together. Only when they eliminated the other pods and expressly used our pods, did they remedy the problems mentioned above.

On that note, we developed the FabCenter suction cups for Breton. They have a unique setup for that machine so if you need help with the suction cups, please let me know.

Good luck with the new machine!

All the best-

[Brembana4axis]

Yeah swirls are normal. I just milled the table on our CMS router a year ago and it left swirl marks. They will mostly go away with time. Also, as you've probably already noticed, your table will be really slippery when it's wet. That will also go away within a month or two.