On 1/31/2017 8:10 PM, DerbyDad03 wrote:
On Tuesday, January 31, 2017 at 10:09:31 AM UTC-5, Leon wrote:
On 1/31/2017 7:01 AM, DerbyDad03 wrote:
On Tuesday, January 31, 2017 at 6:05:25 AM UTC-5, Ed Pawlowski wrote:
On 1/30/2017 11:57 PM, DerbyDad03 wrote:


Well, considering that the board was bought at Home Depot and required the hold-down
clamp to flatten it against the saw's table, it is definitely scrap.


So is it the saw or the board that is the problem? Could the board be
moving once the blade stops? Have you tried a different board?

I wonder of the force of the rotating blade is causing some stress that
causes it to move during the cut.

I'm going to stop and pick up a perfectly flat 1x12 later today. There's a lumber yard near
my work where I can get good wood.

I don't think the board is moving because it is clamped to the table to keep it flat. It's the
clamped side that's showing the groove. I'll test a few more things and removing the
possibility of the board causing the problem is my next step.





A piece of MDF or plywood should work if you have a scrap laying around.

It be the saw.

Here is the 1/2" MDF:

http://i.imgur.com/Sjicndm.jpg

I tried 2 different blades and I tried both with and without the hold
down clamp. The groove might be ever so slightly shallower without the
hold down clamp, but it's still there.

I also tried to eliminate user error by keeping some left-ward pressure
on the head unit throughout the entire cut. Theoretically, this should
have pulled the front of the blade away from the board, eliminating the
groove. As you can see, it did not.

The call goes into Amazon tomorrow.

Dammit!

Blade brake pulling the blade or arbor shaft to the side?