Tom Henderson2
08-23-2020, 7:00 PM
Greetings everyone.
I've used router bushings from time to time, but this time I need to try an minimize the gap between the bit and the ID of the bushing.
How close is too close?
I'm using a 1/2" bit, and the closest bushing is 17/32 ID.
So... that gives me 1/64" (0.016") gap between the bit and the bushing. (1/32 difference in diameter, so 1/64 difference in radius)
This is a core box bit being used to rout a groove. So I can take light cuts, etc to minimize bit deflection.
I realize I'll need to be careful when installing/centering the sub-base and bushing.
Is 1/64 gap too small? I'm wondering how small a gap you more experience folks feel comfortable with.
Thanks in advance for your help!
-TH
The next option is 21/32 ID bushing, which give me 5/64 gap (5/32 difference in diameters, so 5/64 difference in radius)
I've used router bushings from time to time, but this time I need to try an minimize the gap between the bit and the ID of the bushing.
How close is too close?
I'm using a 1/2" bit, and the closest bushing is 17/32 ID.
So... that gives me 1/64" (0.016") gap between the bit and the bushing. (1/32 difference in diameter, so 1/64 difference in radius)
This is a core box bit being used to rout a groove. So I can take light cuts, etc to minimize bit deflection.
I realize I'll need to be careful when installing/centering the sub-base and bushing.
Is 1/64 gap too small? I'm wondering how small a gap you more experience folks feel comfortable with.
Thanks in advance for your help!
-TH
The next option is 21/32 ID bushing, which give me 5/64 gap (5/32 difference in diameters, so 5/64 difference in radius)