9 - 4 CHAPTER 9 : MALFUNCTIONS
TRYTON 112 CNC
1.5 Clamping Method
1.5.1 Collets
There are different kinds of collets that are more or less effective:
A) Simple cone collet
The bar is held over about 350
degrees, over a length from 0.5 to 7
times the diameter.
The effectiveness ranges from good
to very good.
B) Bi-conical collet
Clamping over 1 or 2 x 350 degrees,
over an approximate length of 1.2
times the diameter.
Effectiveness: very good to excellent
C) Double cone collet
The double cone clamp has the great
advantage of holding the bar at two
points separated by about 1.5 the
diameter, with a clamping 2 times
350 degrees over about 0.5 times the
diameter.
Effectiveness: excellent
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