Hi,
I have not done much threading and I have not done it in quite a while, but this is weird...
I'm using a Fadal VMC15 with a Maritool ER25 floating tap holder and a OSG M5-0.8 spiral point tap. I drill a 0.166" hole in a 0.5" piece of 6061 and tap it. At that point the threads at the bottom half of the hole are gone. The threads at the top half are still there. It is a thru hole. I go 0.7" deep on a 0.5" stock so that the point of the tap clears the bottom of the stock.
The Q looks okay: 25.4 / 0.8 => 31.75 and 1 / 31.75 = 0.031496 => Q0.0315
Thoughts?
T10 M6
S200 M3
E1
G90 G0 X0.5 Y0.25
G43 Z0.6 H10
M8
Z0.2
G98 G84 X0.5 Y0.25 Z-0.7 R0+0.2 Q0.0315 F200.
G80
Z0.6
I do not have many of these to make, but it would be nice to know what is going on. Thanks!
I have not done much threading and I have not done it in quite a while, but this is weird...
I'm using a Fadal VMC15 with a Maritool ER25 floating tap holder and a OSG M5-0.8 spiral point tap. I drill a 0.166" hole in a 0.5" piece of 6061 and tap it. At that point the threads at the bottom half of the hole are gone. The threads at the top half are still there. It is a thru hole. I go 0.7" deep on a 0.5" stock so that the point of the tap clears the bottom of the stock.
The Q looks okay: 25.4 / 0.8 => 31.75 and 1 / 31.75 = 0.031496 => Q0.0315
Thoughts?
T10 M6
S200 M3
E1
G90 G0 X0.5 Y0.25
G43 Z0.6 H10
M8
Z0.2
G98 G84 X0.5 Y0.25 Z-0.7 R0+0.2 Q0.0315 F200.
G80
Z0.6
I do not have many of these to make, but it would be nice to know what is going on. Thanks!