Allan Johanson
08-10-2003, 10:08 PM
Hi gang,
I'm trying to set up my new jointer and am wondering how accurate it should be with regards to knife height (esp side-to-side), table parallelism, etc.
My test is as follows:
1) Take a board about 6" by 24" and face joint it to get a flat surface.
2) Run it through the thickness planer to get a consistently thick board
3) Double check the thickness at the four corners with a dial calliper
4) Set your jointer to a light pass, maybe 1/32"
5) Run the board through the jointer, jointing the same face 4 times in a row
6) Measure all 4 corners with a dial calliper again
What do you see? The same thickness at all 4 corners? Or are you out side-to-side and/or front to back? How much are you out? I suppose if your machine is perfectly set up and your technique is perfect, you'll get the same numbers at all 4 corners.
I realize this is wood, and not a high-precision machine shop making engine parts, but how far off would you be comfortable with?
Thanks!
Allan
I'm trying to set up my new jointer and am wondering how accurate it should be with regards to knife height (esp side-to-side), table parallelism, etc.
My test is as follows:
1) Take a board about 6" by 24" and face joint it to get a flat surface.
2) Run it through the thickness planer to get a consistently thick board
3) Double check the thickness at the four corners with a dial calliper
4) Set your jointer to a light pass, maybe 1/32"
5) Run the board through the jointer, jointing the same face 4 times in a row
6) Measure all 4 corners with a dial calliper again
What do you see? The same thickness at all 4 corners? Or are you out side-to-side and/or front to back? How much are you out? I suppose if your machine is perfectly set up and your technique is perfect, you'll get the same numbers at all 4 corners.
I realize this is wood, and not a high-precision machine shop making engine parts, but how far off would you be comfortable with?
Thanks!
Allan