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Vertical CNC machining center6/8
I have been thinking about how a CNC machining center would fit into our shop. We are a 4 man shop currently but are getting busier. we do a mix of residential and commercial cabinetry and millwork, including custom passage doors. We have a vertical panel saw that we cut all our ply and melamine on now. We then dado for backs on a dedicated table saw, notch for toe kicks on a toe kick notcher, bore for dowels on a cheap lobo flip flop boring machine and then drill shelf pin holes on a double row gannomat. It seams like the cnc machining centers would be nice because it would do all these operations on one machine. Also the doweling machine is a little difficult to set up for stretchers and fixed shelves, and we make mistakes. My question is does it make sense to cut on a panel saw and then run through a machining center, or are they made to be fed by beam saws? would a nested based router be better for our shop as I could use it for curved parts on reception desks and such.(I currently sub this part to a local shop)
Your in the same place I was about a year ago, only difference is that I was cutting on a slider. I made the leap to a nested base machine and only thing I can say is that I wish I had done it 5 years sooner. It use to take me 2 days to cut and machine an average house of cabinets, it is now done in less than 4 hours. I went into thinking that we would still cut non machined parts on the slider (shelves and stretchers) that only lasted for 1 job. We now cut any part with a quantity of more than 1 on the cnc. The other benefits of nesting is material optimization and I have time to do other operations while its machining.
Well said Randy.
I'd pass on the vertical CNC. They, or at least the ones I've looked @, are not good for parts that will have drops (curved work.) It is possible to work around that but adds another step & time.
Nested is much better. Like Randy said.
Go to Atlanta & look @ all the options. A 2 man shop near me has an Omnitech that has been very good. No more expensive than a vertical CNC and doesn't require additional handling, sawing. He runs nested.
Thanks guys. I am currently using Mozaik software for my cabinets and Autocad and Sketchup for the curved work.
As others have stated go to Atlanta and look at all of them, I did and I'm very happy with my purchase of a Beisse Klever. As with most of us space is limited so I got a 4x8 table low speed machine to save space, no safety perimeter on the low speed machine. Cutting speed is determined by your bit so the high speed is only needed in non cutting movements and bit changes. If you do any cabinets I think that a drill block is a must.
Jarin, I am pleased that you are happy with you present HH machines and that you have interest in our CNC's. I also agree checking everyone out at IWF and possibly before is wise also. A purchase like this has significant impact on your business's future success. Yes, we work with Moziak CNC version and all other g-code producing software's. The Evolution has the same software as all of our current CNC machines no matter nested or PTP. In regard to machining speeds and cutter design I would like to add some clarification; chip load is the determining factor of cutter speed. The chip must be large enough to carry heat away from cutter, slower feed speeds require less flutes and slower rpm's to achieve this. This in some cases limits your selection and potential edge quality. This is fine for you as long as you understand the limitation. Be aware that invertor driven spindles lose horsepower when they run lower rpm's . So if you start with 10hp and the cutter requires you to run say 10,000 rpm you may only have 4hp. All vendors should be able to provide for you a motor power curve diagram. The lower HP could become an issue with larger spoil board cutters, panel raising cutters, some edge detail cutters, etc. This is why it is imperative you consider how the machine will be used with a skilled machine solutions provider.
I Cut, Band and then machine. It takes about 15 - 45 seconds per part. I typically make cabinets with integral toe kicks so I have less parts. Notching the toe kick on the vertical took too much time to route to dust. I had two options to overcome this. Route 90% though and then use a hand router or Buy a notching saw. I went with the saw option because it is simple stupid and will leave the corner square.
I hope this helps.
So glad I found this thread, I'm going to Atlanta for this reason.
Currently we run a vertical panel saw, an Scm tech 80(p2p) and a Gannomat logic index (horizontal boring/doweling). We've been looking to go to nested and keep the p2p as a backuo but are also considering a move in the next few years. At this point in time and the tech 80 is almost 15 years old so we need a backup and don't want to incur the setup costs for the nested machine twice. The vertical cnc centers look like a good compromise; compact footprint, self contained, less dust collection required, less money than a full blown nested with auto on/off, the list goes on. The bulk of our work is schools and hospitals but we do enough custom work that the vertical center would never be our only machine.
All that being said Atlanta is really the place to get the best sense of what's going to work. Might be worth bringing a few programs on a flash drive to see if any of the manufacturers would let you run a few test pieces.
I considered a vertical at one point but I couldn't get around all the limitations. We have a P2P that we no longer use. It machines a part pretty fast but you have to have the saw cut a blank out first. More handling! Might make sense if you were stack cutting on the beam saw and making a lot of the same parts. The P2P can also edge process, drill and mortice, especially good for solid wood processing. We do a lot of work for outside shops and odd customers. Much of it can't be processed on a vertical or P2P. But it is nice $. Having to turn all cutouts to dust is a real time drag if you are doing openings, radius corners etc. on a vertical. Maybe I think of that because of all the curved work we do. I've considered doing away with the beam saw and putting another nested router in it's place. See you in Atlanta.