Problem with Bevels

markap · Post by **markap** » Mon Dec 22, 2008 8:53 am

Over the weekend I was putting 22.5 deg bevels on a number of pieces of stock 16" long. I noticed that after a few cuts, the blade would repeatedly become loose from the spindle, despite contientiously tightening the set screw.

Also, for some reason, the back of the blade would be pushed ever so slightly to the right - I would get a clean cut from the front of the blade but also a slight upward cut from the back of the blade (carbide teeth).

I have the blade centered in the standard saw insert so I know it's not touching there.

Any ideas?

dusty · Post by **dusty** » Mon Dec 22, 2008 9:13 am

markap wrote:Over the weekend I was putting 22.5 deg bevels on a number of pieces of stock 16" long. I noticed that after a few cuts, the blade would repeatedly become loose from the spindle, despite contientiously tightening the set screw.

Also, for some reason, the back of the blade would be pushed ever so slightly to the right - I would get a clean cut from the front of the blade but also a slight upward cut from the back of the blade (carbide teeth).

I have the blade centered in the standard saw insert so I know it's not touching there.

Any ideas?

I can't comment on your blade/arbor coming loose. I have never had that happen to a properly installed arbor. I have failed to set the set screw. Scary mistake.

Is it possible that the blade is not being pushed to the right but rather the carriage is being moved (carriage lock not secure).

I am paranoid about locking the headstock, carriage, table tilt and quill. I've had a couple experiences (screw ups) that make me that way.

Ed in Tampa · Post by **Ed in Tampa** » Mon Dec 22, 2008 9:42 am

markap wrote:Over the weekend I was putting 22.5 deg bevels on a number of pieces of stock 16" long. I noticed that after a few cuts, the blade would repeatedly become loose from the spindle, despite contientiously tightening the set screw.

Mark if you setscrew is coming loose I can think of only two things. One the set screw your using is damaged or two it is the wrong one. If you have another arbor or lathe center take the set screw from them and put it into the your blade arbor and see if that helps. Also excessive vibration can cause nearly everything to loosen.

Also, for some reason, the back of the blade would be pushed ever so slightly to the right - I would get a clean cut from the front of the blade but also a slight upward cut from the back of the blade (carbide teeth).

I have the blade centered in the standard saw insert so I know it's not touching there.
Any ideas?

I"m not exactly sure what your saying here, but if the back of the blade is rubbing on the cut that says your blade to mitre slot/fence is not perfectly aligned or your allowing the work to shift as you cutting it.

Check you blade to mitre/fence alignment if that is okay then make sure you work is securily fastened to the mited guage or pressed against the fence. If the blade then touches you know something moved. Either the table was moved carriage lock is slipping or arbor lock is slipping. Check the carriage by marking it's location on the way tube and making a cut if the carriage moved you will see it. On the arbor you can do the same thing.

I really believe the problem is either your table is not perfectly aligned or the wood is shifting while making the cut. Bevel cut can be hard to hold. Nick did a saw dust session with an anti-gravity bevel slide that you may need to watch.