Sure, the subject of CNC mills could be difficult. Due to the
overwhelming trivia of design element and a bewildering quantity
of decisions, there’s greater than sufficient to intimidate any CNC
person. However, it doesn’t must be that manner. Happily,
woodworkers have a reasonably slim focus: Reducing wooden on a CNC.
We have now particular issues to contemplate however the excellent news is
that by specializing in simply on our wants, we don’t must get
into each element of CNC mill design. For that motive, that is
a streamlined primer targeted on simply what a digital woodworker
must know when selecting a slicing instrument.
Let’s begin by answering a number of primary questions.
What’s are the variations between a router bit & a CNC
There’s a whole lot of confusion about these two phrases. Basically,
it’s a distinction of design and function. Most true CNC mills
with excessive helix angles (a helix angle is the angle
between any helix and an axial line) are designed for slicing
steel inside coolant-flooded CNC milling machines (you’d seemingly
discover these in an engineering or machine store setting). However
not all mills are used for machining steel. In actual fact, CNC mills
are designed for slicing all types of particular supplies in
completely different working conditions. You will discover mills for slicing
metal of assorted varieties, aluminum, brass, plastics,
polycarbonates, carbon fiber, foam, plywood, composites and
sure, smooth and exhausting woods.
One other distinction is that CNC mills are generally longer than
the bits you’d sometimes use on a router. It’s widespread to search out
mills which can be three”, four”, 6” or extra. You’d seemingly by no means use
actually lengthy mills on a hand-held router, however on a CNC generally
that further size turns out to be useful for deep-cutting, tight
clearance conditions. That mentioned, for rigidity, it’s at all times a
good observe to make use of as brief a mill as doable.
Can you utilize CNC finish mills to chop wooden on a CNC?
If the mills are fastidiously chosen the reply is sure. I’ll get
into extra about mill choice in a while, however I can let you know
that the very first thing to search for is the variety of cutters, or
flutes. When slicing wooden, much less is extra. On the CNCs that you just’d
sometimes discover in a woodworking store, two flutes are perfect.
Router bits are clearly designed for the form of routers that
woodworkers use. In comparison with an peculiar CNC mill, discover that
the spiral slicing edges on a woodworking router bit are nearer
to vertical. Technically, their helix angles are shallower:
18°-30° in comparison with 30°-45° or extra for an finish mill designed
for steel slicing. Additionally, discover that there’s normally fewer
slicing edges on router bits than on most CNC mills. Two is
most typical. There are good causes for these options, of
course. Much less slicing edges permit router bits to take away a whole lot of
wooden shortly and to chop cleanly.
Can you utilize router bits on a CNC?
Sure. If the router bit is ready to take away wooden shortly in a
high-load scenario — bear in mind, CNCs do their work a lot sooner
than mere people with hand-held routers. Many spiral router
bits will work fantastic for woodworking duties on the form of CNC
machines that woodworkers use: CNC routers. Specifically look
for two-flute spiral carbide cutters. They’re the usual for
this activity. I take advantage of them on a regular basis and suggest them.
P.S. Subsequent up: Mill and bit design particulars which can be good for
woodworkers to know.