Hi all
I'm at a total loss and know I must be doing something wrong.
I am building a xcut sled using the William ng method. I've spent at least 6 hours trying to tune it to the . 001 he claims. I've watched the video again again and again. Ran the math numbers multiple times, but cannot get a consistent reading. I'll adjust up then down. Then down again then back up. Multiple times I've cut at the same setting and still cannot get a consistent reading. I've tried averaging the multiple readings and still nothing. I'm not sure if I have any wood left from all the screw test holes...
I would like to run down my setup and hope you all can point out some type of flaws.
Materials:
1/2" mdf base
1/2" BB ply (laminated 3 layers for the fences)
Runners - red oak
Built sled per his video
Got into rough square using combo square. Made 5 cuts. Measured top cut and subtracted bottom, divide by 4, divide again by length of cut. Take that number then times it by the length of the pivot point you want to use or rounds to feeler gauge. If the number is a positive fence needs to move back, if negative move forward. So if it's a positive .005, set a block tight against fence, unscrew one pivot screw. Move fence backwards, insert appropriate feeler gauge, move fence forward to touch feeler gauge. Clamp fence, check feeler gauge, screw another screw back in.
Make 5 more cuts and measure deviation...rinse and repeat.
Can anyone comment on if all that sounds correct. If so what am I doing wrong?
Not that it matters but I checked my blade alignment with a crude jig I made and found the rear of the blade was off by about 1.5 thou.
The fence appears to have a very slight bump at the very far left end of it,which I tried getting out but couldn't. I will try lapping the fence flat with sandpaper on float glass.
Anything glaringly wrong I am doing?
Thanks
Michael